Commit Graph

1105996 Commits

Author SHA1 Message Date
Rafael J. Wysocki
ba7c350708 Update devfreq for 5.19-rc6
Detailed description for this pull request:
 1. Fix NULL pointer error on exynos-bus.c
 - Fix exynos-bus NULL pointer dereference by correctly using the local
 generated freq_table to output the debug values instead of using the
 profile freq_table that is not used in the driver.
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Merge tag 'devfreq-fixes-for-5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/linux

Pull a devfreq fix for 5.19-rc6 from Chanwoo Choi:

"- Fix exynos-bus NULL pointer dereference by correctly using the local
   generated freq_table to output the debug values instead of using the
   profile freq_table that is not used in the driver."

* tag 'devfreq-fixes-for-5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/linux:
  PM / devfreq: exynos-bus: Fix NULL pointer dereference
2022-07-07 21:46:05 +02:00
Christian Marangi
c8934e4e34 PM / devfreq: exynos-bus: Fix NULL pointer dereference
Fix exynos-bus NULL pointer dereference by correctly using the local
generated freq_table to output the debug values instead of using the
profile freq_table that is not used in the driver.

Reported-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Fixes: b5d281f6c1 ("PM / devfreq: Rework freq_table to be local to devfreq struct")
Cc: stable@vger.kernel.org
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2022-07-08 04:32:26 +09:00
Linus Torvalds
88084a3df1 Linux 5.19-rc5 2022-07-03 15:39:28 -07:00
Linus Torvalds
b8d5109f50 lockref: remove unused 'lockref_get_or_lock()' function
Looking at the conditional lock acquire functions in the kernel due to
the new sparse support (see commit 4a557a5d1a "sparse: introduce
conditional lock acquire function attribute"), it became obvious that
the lockref code has a couple of them, but they don't match the usual
naming convention for the other ones, and their return value logic is
also reversed.

In the other very similar places, the naming pattern is '*_and_lock()'
(eg 'atomic_put_and_lock()' and 'refcount_dec_and_lock()'), and the
function returns true when the lock is taken.

The lockref code is superficially very similar to the refcount code,
only with the special "atomic wrt the embedded lock" semantics.  But
instead of the '*_and_lock()' naming it uses '*_or_lock()'.

And instead of returning true in case it took the lock, it returns true
if it *didn't* take the lock.

Now, arguably the reflock code is quite logical: it really is a "either
decrement _or_ lock" kind of situation - and the return value is about
whether the operation succeeded without any special care needed.

So despite the similarities, the differences do make some sense, and
maybe it's not worth trying to unify the different conditional locking
primitives in this area.

But while looking at this all, it did become obvious that the
'lockref_get_or_lock()' function hasn't actually had any users for
almost a decade.

The only user it ever had was the shortlived 'd_rcu_to_refcount()'
function, and it got removed and replaced with 'lockref_get_not_dead()'
back in 2013 in commits 0d98439ea3 ("vfs: use lockred 'dead' flag to
mark unrecoverably dead dentries") and e5c832d555 ("vfs: fix dentry
RCU to refcounting possibly sleeping dput()")

In fact, that single use was removed less than a week after the whole
function was introduced in commit b3abd80250 ("lockref: add
'lockref_get_or_lock() helper") so this function has been around for a
decade, but only had a user for six days.

Let's just put this mis-designed and unused function out of its misery.

We can think about the naming and semantic oddities of the remaining
'lockref_put_or_lock()' later, but at least that function has users.

And while the naming is different and the return value doesn't match,
that function matches the whole '{atomic,refcount}_dec_and_test()'
pattern much better (ie the magic happens when the count goes down to
zero, not when it is incremented from zero).

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-07-03 14:40:28 -07:00
Linus Torvalds
4a557a5d1a sparse: introduce conditional lock acquire function attribute
The kernel tends to try to avoid conditional locking semantics because
it makes it harder to think about and statically check locking rules,
but we do have a few fundamental locking primitives that take locks
conditionally - most obviously the 'trylock' functions.

That has always been a problem for 'sparse' checking for locking
imbalance, and we've had a special '__cond_lock()' macro that we've used
to let sparse know how the locking works:

    # define __cond_lock(x,c)        ((c) ? ({ __acquire(x); 1; }) : 0)

so that you can then use this to tell sparse that (for example) the
spinlock trylock macro ends up acquiring the lock when it succeeds, but
not when it fails:

    #define raw_spin_trylock(lock)  __cond_lock(lock, _raw_spin_trylock(lock))

and then sparse can follow along the locking rules when you have code like

        if (!spin_trylock(&dentry->d_lock))
                return LRU_SKIP;
	.. sparse sees that the lock is held here..
        spin_unlock(&dentry->d_lock);

and sparse ends up happy about the lock contexts.

However, this '__cond_lock()' use does result in very ugly header files,
and requires you to basically wrap the real function with that macro
that uses '__cond_lock'.  Which has made PeterZ NAK things that try to
fix sparse warnings over the years [1].

To solve this, there is now a very experimental patch to sparse that
basically does the exact same thing as '__cond_lock()' did, but using a
function attribute instead.  That seems to make PeterZ happy [2].

Note that this does not replace existing use of '__cond_lock()', but
only exposes the new proposed attribute and uses it for the previously
unannotated 'refcount_dec_and_lock()' family of functions.

For existing sparse installations, this will make no difference (a
negative output context was ignored), but if you have the experimental
sparse patch it will make sparse now understand code that uses those
functions, the same way '__cond_lock()' makes sparse understand the very
similar 'atomic_dec_and_lock()' uses that have the old '__cond_lock()'
annotations.

Note that in some cases this will silence existing context imbalance
warnings.  But in other cases it may end up exposing new sparse warnings
for code that sparse just didn't see the locking for at all before.

This is a trial, in other words.  I'd expect that if it ends up being
successful, and new sparse releases end up having this new attribute,
we'll migrate the old-style '__cond_lock()' users to use the new-style
'__cond_acquires' function attribute.

The actual experimental sparse patch was posted in [3].

Link: https://lore.kernel.org/all/20130930134434.GC12926@twins.programming.kicks-ass.net/ [1]
Link: https://lore.kernel.org/all/Yr60tWxN4P568x3W@worktop.programming.kicks-ass.net/ [2]
Link: https://lore.kernel.org/all/CAHk-=wjZfO9hGqJ2_hGQG3U_XzSh9_XaXze=HgPdvJbgrvASfA@mail.gmail.com/ [3]
Acked-by: Peter Zijlstra <peterz@infradead.org>
Cc: Alexander Aring <aahringo@redhat.com>
Cc: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-07-03 11:32:22 -07:00
Linus Torvalds
20855e4cb3 Fixes for 5.19-rc5:
- Fix statfs blocking on background inode gc workers
  - Fix some broken inode lock assertion code
  - Fix xattr leaf buffer leaks when cancelling a deferred xattr update
    operation
  - Clean up xattr recovery to make it easier to understand.
  - Fix xattr leaf block verifiers tripping over empty blocks.
  - Remove complicated and error prone xattr leaf block bholding mess.
  - Fix a bug where an rt extent crossing EOF was treated as "posteof"
    blocks and cleaned unnecessarily.
  - Fix a UAF when log shutdown races with unmount.
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Merge tag 'xfs-5.19-fixes-4' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

Pull xfs fixes from Darrick Wong:
 "This fixes some stalling problems and corrects the last of the
  problems (I hope) observed during testing of the new atomic xattr
  update feature.

   - Fix statfs blocking on background inode gc workers

   - Fix some broken inode lock assertion code

   - Fix xattr leaf buffer leaks when cancelling a deferred xattr update
     operation

   - Clean up xattr recovery to make it easier to understand.

   - Fix xattr leaf block verifiers tripping over empty blocks.

   - Remove complicated and error prone xattr leaf block bholding mess.

   - Fix a bug where an rt extent crossing EOF was treated as "posteof"
     blocks and cleaned unnecessarily.

   - Fix a UAF when log shutdown races with unmount"

* tag 'xfs-5.19-fixes-4' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  xfs: prevent a UAF when log IO errors race with unmount
  xfs: dont treat rt extents beyond EOF as eofblocks to be cleared
  xfs: don't hold xattr leaf buffers across transaction rolls
  xfs: empty xattr leaf header blocks are not corruption
  xfs: clean up the end of xfs_attri_item_recover
  xfs: always free xattri_leaf_bp when cancelling a deferred op
  xfs: use invalidate_lock to check the state of mmap_lock
  xfs: factor out the common lock flags assert
  xfs: introduce xfs_inodegc_push()
  xfs: bound maximum wait time for inodegc work
2022-07-03 09:42:17 -07:00
Linus Torvalds
69cb6c6556 Notable regression fixes:
- Fix NFSD crash during NFSv4.2 READ_PLUS operation
 - Fix incorrect status code returned by COMMIT operation
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Merge tag 'nfsd-5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux

Pull nfsd fixes from Chuck Lever:
 "Notable regression fixes:

   - Fix NFSD crash during NFSv4.2 READ_PLUS operation

   - Fix incorrect status code returned by COMMIT operation"

* tag 'nfsd-5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux:
  SUNRPC: Fix READ_PLUS crasher
  NFSD: restore EINVAL error translation in nfsd_commit()
2022-07-02 11:20:56 -07:00
Linus Torvalds
34074da542 parisc architecture fixes for kernel v5.19-rc5:
Two important fixes for bugs in code which was added in kernel v5.18:
 
 * Fix userspace signal failures on 32-bit kernel due to a bug in vDSO
 
 * Fix 32-bit load-word unalignment exception handler which returned
   wrong values
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Merge tag 'for-5.19/parisc-4' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux

Pull parisc architecture fixes from Helge Deller:
 "Two important fixes for bugs in code which was added in 5.18:

   - Fix userspace signal failures on 32-bit kernel due to a bug in vDSO

   - Fix 32-bit load-word unalignment exception handler which returned
     wrong values"

* tag 'for-5.19/parisc-4' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc: Fix vDSO signal breakage on 32-bit kernel
  parisc/unaligned: Fix emulate_ldw() breakage
2022-07-02 10:23:36 -07:00
Helge Deller
aa78fa905b parisc: Fix vDSO signal breakage on 32-bit kernel
Addition of vDSO support for parisc in kernel v5.18 suddenly broke glibc
signal testcases on a 32-bit kernel.

The trampoline code (sigtramp.S) which is mapped into userspace includes
an offset to the context data on the stack, which is used by gdb and
glibc to get access to registers.

In a 32-bit kernel we used by mistake the offset into the compat context
(which is valid on a 64-bit kernel only) instead of the offset into the
"native" 32-bit context.

Reported-by: John David Anglin <dave.anglin@bell.net>
Tested-by: John David Anglin <dave.anglin@bell.net>
Fixes: 	df24e1783e ("parisc: Add vDSO support")
CC: stable@vger.kernel.org # 5.18
Signed-off-by: Helge Deller <deller@gmx.de>
2022-07-02 18:36:58 +02:00
Linus Torvalds
bb7c512687 perf tools fixes for v5.19: 3rd batch
- BPF program info linear (BPIL) data is accessed assuming 64-bit alignment
   resulting in undefined behavior as the data is just byte aligned. Fix it,
   Found using -fsanitize=undefined.
 
 - Fix 'perf offcpu' build on old kernels wrt task_struct's state/__state field.
 
 - Fix perf_event_attr.sample_type setting on the 'offcpu-time' event synthesized
   by the 'perf offcpu' tool.
 
 - Don't bail out when synthesizing PERF_RECORD_ events for pre-existing threads
   when one goes away while parsing its procfs entries.
 
 - Don't sort the task scan result from /proc, its not needed and introduces bugs
   when the main thread isn't the first one to be processed.
 
 - Fix uninitialized 'offset' variable on aarch64 in the unwind code.
 
 - Sync KVM headers with the kernel sources.
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-tools-fixes-for-v5.19-2022-07-02' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux

Pull perf tools fixes from Arnaldo Carvalho de Melo:

 - BPF program info linear (BPIL) data is accessed assuming 64-bit
   alignment resulting in undefined behavior as the data is just byte
   aligned. Fix it, Found using -fsanitize=undefined.

 - Fix 'perf offcpu' build on old kernels wrt task_struct's
   state/__state field.

 - Fix perf_event_attr.sample_type setting on the 'offcpu-time' event
   synthesized by the 'perf offcpu' tool.

 - Don't bail out when synthesizing PERF_RECORD_ events for pre-existing
   threads when one goes away while parsing its procfs entries.

 - Don't sort the task scan result from /proc, its not needed and
   introduces bugs when the main thread isn't the first one to be
   processed.

 - Fix uninitialized 'offset' variable on aarch64 in the unwind code.

 - Sync KVM headers with the kernel sources.

* tag 'perf-tools-fixes-for-v5.19-2022-07-02' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
  perf synthetic-events: Ignore dead threads during event synthesis
  perf synthetic-events: Don't sort the task scan result from /proc
  perf unwind: Fix unitialized 'offset' variable on aarch64
  tools headers UAPI: Sync linux/kvm.h with the kernel sources
  perf bpf: 8 byte align bpil data
  tools kvm headers arm64: Update KVM headers from the kernel sources
  perf offcpu: Accept allowed sample types only
  perf offcpu: Fix build failure on old kernels
2022-07-02 09:28:36 -07:00
Linus Torvalds
5411de0733 powerpc fixes for 5.19 #4
- Fix BPF uapi confusion about the correct type of bpf_user_pt_regs_t.
 
  - Fix virt_addr_valid() when memory is hotplugged above the boot-time high_memory value.
 
  - Fix a bug in 64-bit Book3E map_kernel_page() which would incorrectly allocate a PMD
    page at PUD level.
 
  - Fix a couple of minor issues found since we enabled KASAN for 64-bit Book3S.
 
 Thanks to: Aneesh Kumar K.V, Cédric Le Goater, Christophe Leroy, Kefeng Wang, Liam
 Howlett, Nathan Lynch, Naveen N. Rao.
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Merge tag 'powerpc-5.19-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc fixes from Michael Ellerman:

 - Fix BPF uapi confusion about the correct type of bpf_user_pt_regs_t.

 - Fix virt_addr_valid() when memory is hotplugged above the boot-time
   high_memory value.

 - Fix a bug in 64-bit Book3E map_kernel_page() which would incorrectly
   allocate a PMD page at PUD level.

 - Fix a couple of minor issues found since we enabled KASAN for 64-bit
   Book3S.

Thanks to Aneesh Kumar K.V, Cédric Le Goater, Christophe Leroy, Kefeng
Wang, Liam Howlett, Nathan Lynch, and Naveen N. Rao.

* tag 'powerpc-5.19-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/memhotplug: Add add_pages override for PPC
  powerpc/bpf: Fix use of user_pt_regs in uapi
  powerpc/prom_init: Fix kernel config grep
  powerpc/book3e: Fix PUD allocation size in map_kernel_page()
  powerpc/xive/spapr: correct bitmap allocation size
2022-07-02 09:11:44 -07:00
Namhyung Kim
ff898552fb perf synthetic-events: Ignore dead threads during event synthesis
When it synthesize various task events, it scans the list of task
first and then accesses later.  There's a window threads can die
between the two and proc entries may not be available.

Instead of bailing out, we can ignore that thread and move on.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20220701205458.985106-2-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-07-02 09:22:26 -03:00
Namhyung Kim
363afa3aef perf synthetic-events: Don't sort the task scan result from /proc
It should not sort the result as procfs already returns a proper
ordering of tasks.  Actually sorting the order caused problems that it
doesn't guararantee to process the main thread first.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20220701205458.985106-1-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-07-02 09:21:41 -03:00
Ivan Babrou
5eb502b2e1 perf unwind: Fix unitialized 'offset' variable on aarch64
Commit dc2cf4ca86 ("perf unwind: Fix segbase for ld.lld linked
objects") uncovered the following issue on aarch64:

    util/unwind-libunwind-local.c: In function 'find_proc_info':
    util/unwind-libunwind-local.c:386:28: error: 'offset' may be used uninitialized in this function [-Werror=maybe-uninitialized]
    386 |                         if (ofs > 0) {
        |                            ^
    util/unwind-libunwind-local.c:199:22: note: 'offset' was declared here
    199 |         u64 address, offset;
        |                      ^~~~~~
    util/unwind-libunwind-local.c:371:20: error: 'offset' may be used uninitialized in this function [-Werror=maybe-uninitialized]
    371 |                 if (ofs <= 0) {
        |                    ^
    util/unwind-libunwind-local.c:199:22: note: 'offset' was declared here
    199 |         u64 address, offset;
        |                      ^~~~~~
    util/unwind-libunwind-local.c:363:20: error: 'offset' may be used uninitialized in this function [-Werror=maybe-uninitialized]
    363 |                 if (ofs <= 0) {
        |                    ^
    util/unwind-libunwind-local.c:199:22: note: 'offset' was declared here
    199 |         u64 address, offset;
        |                      ^~~~~~
    In file included from util/libunwind/arm64.c:37:

Fixes: dc2cf4ca86 ("perf unwind: Fix segbase for ld.lld linked objects")
Signed-off-by: Ivan Babrou <ivan@cloudflare.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Fangrui Song <maskray@google.com>
Cc: Ian Rogers <irogers@google.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: kernel-team@cloudflare.com
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20220701182046.12589-1-ivan@cloudflare.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-07-02 09:16:52 -03:00
Linus Torvalds
0898660614 libnvdimm fixes for v5.19-rc5
- Fix a bug in the libnvdimm 'BTT' (Block Translation Table) driver
   where accounting for poison blocks to be cleared was off by one,
   causing a failure to clear the the last badblock in an nvdimm region.
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Merge tag 'libnvdimm-fixes-5.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm

Pull libnvdimm fix from Vishal Verma:

 - Fix a bug in the libnvdimm 'BTT' (Block Translation Table) driver
   where accounting for poison blocks to be cleared was off by one,
   causing a failure to clear the the last badblock in an nvdimm region.

* tag 'libnvdimm-fixes-5.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
  nvdimm: Fix badblocks clear off-by-one error
2022-07-01 16:58:19 -07:00
Linus Torvalds
1ce8c443e9 Thermal control update for 5.19-rc5
Add a new CPU ID to the list of supported processors in the
 intel_tcc_cooling driver (Sumeet Pawnikar).
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Merge tag 'thermal-5.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull thermal control fix from Rafael Wysocki:
 "Add a new CPU ID to the list of supported processors in the
  intel_tcc_cooling driver (Sumeet Pawnikar)"

* tag 'thermal-5.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  thermal: intel_tcc_cooling: Add TCC cooling support for RaptorLake
2022-07-01 13:00:47 -07:00
Linus Torvalds
9ee7827668 Power management fixes for 5.19-rc5
- Fix error code path issues related PROBE_DEFER handling in
    devfreq (Christian Marangi).
 
  - Revert an editing accident in SPDX-License line in the devfreq
    passive governor (Lukas Bulwahn).
 
  - Fix refcount leak in of_get_devfreq_events() in the exynos-ppmu
    devfreq driver (Miaoqian Lin).
 
  - Use HZ_PER_KHZ macro in the passive devfreq governor (Yicong Yang).
 
  - Fix missing of_node_put for qoriq and pmac32 driver (Liang He).
 
  - Fix issues around throttle interrupt for qcom driver (Stephen Boyd).
 
  - Add MT8186 to cpufreq-dt-platdev blocklist (AngeloGioacchino Del
    Regno).
 
  - Make amd-pstate enable CPPC on resume from S3 (Jinzhou Su).
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Merge tag 'pm-5.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management fixes from Rafael Wysocki:
 "These fix some issues in cpufreq drivers and some issues in devfreq:

   - Fix error code path issues related PROBE_DEFER handling in devfreq
     (Christian Marangi)

   - Revert an editing accident in SPDX-License line in the devfreq
     passive governor (Lukas Bulwahn)

   - Fix refcount leak in of_get_devfreq_events() in the exynos-ppmu
     devfreq driver (Miaoqian Lin)

   - Use HZ_PER_KHZ macro in the passive devfreq governor (Yicong Yang)

   - Fix missing of_node_put for qoriq and pmac32 driver (Liang He)

   - Fix issues around throttle interrupt for qcom driver (Stephen Boyd)

   - Add MT8186 to cpufreq-dt-platdev blocklist (AngeloGioacchino Del
     Regno)

   - Make amd-pstate enable CPPC on resume from S3 (Jinzhou Su)"

* tag 'pm-5.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  PM / devfreq: passive: revert an editing accident in SPDX-License line
  PM / devfreq: Fix kernel warning with cpufreq passive register fail
  PM / devfreq: Rework freq_table to be local to devfreq struct
  PM / devfreq: exynos-ppmu: Fix refcount leak in of_get_devfreq_events
  PM / devfreq: passive: Use HZ_PER_KHZ macro in units.h
  PM / devfreq: Fix cpufreq passive unregister erroring on PROBE_DEFER
  PM / devfreq: Mute warning on governor PROBE_DEFER
  PM / devfreq: Fix kernel panic with cpu based scaling to passive gov
  cpufreq: Add MT8186 to cpufreq-dt-platdev blocklist
  cpufreq: pmac32-cpufreq: Fix refcount leak bug
  cpufreq: qcom-hw: Don't do lmh things without a throttle interrupt
  drivers: cpufreq: Add missing of_node_put() in qoriq-cpufreq.c
  cpufreq: amd-pstate: Add resume and suspend callbacks
2022-07-01 12:55:28 -07:00
Rafael J. Wysocki
bc621588ff Merge branch 'pm-cpufreq'
Merge cpufreq fixes for 5.19-rc5, including ARM cpufreq fixes and the
following one:

 - Make amd-pstate enable CPPC on resume from S3 (Jinzhou Su).

* pm-cpufreq:
  cpufreq: Add MT8186 to cpufreq-dt-platdev blocklist
  cpufreq: pmac32-cpufreq: Fix refcount leak bug
  cpufreq: qcom-hw: Don't do lmh things without a throttle interrupt
  drivers: cpufreq: Add missing of_node_put() in qoriq-cpufreq.c
  cpufreq: amd-pstate: Add resume and suspend callbacks
2022-07-01 21:43:08 +02:00
Linus Torvalds
b336ad598a hwmon fixes for v5.19-rc5
* Fix error handling in ibmaem driver initialization
 
 * Fix bad data reported by occ driver after setting power cap
 
 * Fix typos in pmbus/ucd9200 driver comments
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Merge tag 'hwmon-for-v5.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon fixes from Guenter Roeck:

 - Fix error handling in ibmaem driver initialization

 - Fix bad data reported by occ driver after setting power cap

 - Fix typos in pmbus/ucd9200 driver comments

* tag 'hwmon-for-v5.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (ibmaem) don't call platform_device_del() if platform_device_add() fails
  hwmon: (pmbus/ucd9200) fix typos in comments
  hwmon: (occ) Prevent power cap command overwriting poll response
2022-07-01 12:05:27 -07:00
Yang Yingliang
d0e51022a0 hwmon: (ibmaem) don't call platform_device_del() if platform_device_add() fails
If platform_device_add() fails, it no need to call platform_device_del(), split
platform_device_unregister() into platform_device_del/put(), so platform_device_put()
can be called separately.

Fixes: 8808a793f0 ("ibmaem: new driver for power/energy/temp meters in IBM System X hardware")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20220701074153.4021556-1-yangyingliang@huawei.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-07-01 11:53:29 -07:00
Linus Torvalds
d0f67adb79 arm64 fix: restore TLB invalidation for the 'break-before-make' rule on
contiguous ptes (missed in a recent clean-up).
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fix from Catalin Marinas:
 "Restore TLB invalidation for the 'break-before-make' rule on
  contiguous ptes (missed in a recent clean-up)"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: hugetlb: Restore TLB invalidation for BBM on contiguous ptes
2022-07-01 11:23:21 -07:00
Linus Torvalds
cec84e7547 s390 updates for 5.19-rc5
- Fix purgatory build process so bin2c tool does not get built
   unnecessarily and the Makefile is more consistent with other
   architectures.
 
 - Return earlier simple design of arch_get_random_seed_long|int()
   and arch_get_random_long|int() callbacks as result of changes
   in generic RNG code.
 
 - Fix minor comment typos and spelling mistakes.
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Merge tag 's390-5.19-5' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 fixes from Alexander Gordeev:

 - Fix purgatory build process so bin2c tool does not get built
   unnecessarily and the Makefile is more consistent with other
   architectures.

 - Return earlier simple design of arch_get_random_seed_long|int() and
   arch_get_random_long|int() callbacks as result of changes in generic
   RNG code.

 - Fix minor comment typos and spelling mistakes.

* tag 's390-5.19-5' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/qdio: Fix spelling mistake
  s390/sclp: Fix typo in comments
  s390/archrandom: simplify back to earlier design and initialize earlier
  s390/purgatory: remove duplicated build rule of kexec-purgatory.o
  s390/purgatory: hard-code obj-y in Makefile
  s390: remove unneeded 'select BUILD_BIN2C'
2022-07-01 11:19:14 -07:00
Linus Torvalds
76ff294e16 More NFS Client Bugfixes for Linux 5.19-rc
- Bugfixes:
   - Allocate a fattr for _nfs4_discover_trunking()
   - Fix module reference count leak in nfs4_run_state_manager()
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Merge tag 'nfs-for-5.19-3' of git://git.linux-nfs.org/projects/anna/linux-nfs

Pull NFS client fixes from Anna Schumaker:

 - Allocate a fattr for _nfs4_discover_trunking()

 - Fix module reference count leak in nfs4_run_state_manager()

* tag 'nfs-for-5.19-3' of git://git.linux-nfs.org/projects/anna/linux-nfs:
  NFSv4: Add an fattr allocation to _nfs4_discover_trunking()
  NFS: restore module put when manager exits.
2022-07-01 11:11:32 -07:00
Linus Torvalds
6f8693ea2b A filesystem fix, marked for stable. There appears to be a deeper
issue on the MDS side, but for now we are going with this one-liner
 to avoid busy looping and potential soft lockups.
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Merge tag 'ceph-for-5.19-rc5' of https://github.com/ceph/ceph-client

Pull ceph fix from Ilya Dryomov:
 "A ceph filesystem fix, marked for stable.

  There appears to be a deeper issue on the MDS side, but for now we are
  going with this one-liner to avoid busy looping and potential soft
  lockups"

* tag 'ceph-for-5.19-rc5' of https://github.com/ceph/ceph-client:
  ceph: wait on async create before checking caps for syncfs
2022-07-01 11:06:21 -07:00
Linus Torvalds
8300d38030 - 3 fixes for invalid memory accesses discovered by using KASAN while
running the lvm2 testsuite's dm-raid tests. Includes changes to MD's
   raid5.c given the dependency dm-raid has on the MD code.
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Merge tag 'for-5.19/dm-fixes-5' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

Pull device mapper fixes from Mike Snitzer:
 "Three fixes for invalid memory accesses discovered by using KASAN
  while running the lvm2 testsuite's dm-raid tests. Includes changes to
  MD's raid5.c given the dependency dm-raid has on the MD code"

* tag 'for-5.19/dm-fixes-5' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm raid: fix KASAN warning in raid5_add_disks
  dm raid: fix KASAN warning in raid5_remove_disk
  dm raid: fix accesses beyond end of raid member array
2022-07-01 10:58:39 -07:00
Linus Torvalds
0a35d1622d io_uring-5.19-2022-07-01
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Merge tag 'io_uring-5.19-2022-07-01' of git://git.kernel.dk/linux-block

Pull io_uring fixes from Jens Axboe:
 "Two minor tweaks:

   - While we still can, adjust the send/recv based flags to be in
     ->ioprio rather than in ->addr2. This is consistent with eg accept,
     and also doesn't waste a full 64-bit field for flags (Pavel)

   - 5.18-stable fix for re-importing provided buffers. Not much real
     world relevance here as it'll only impact non-pollable files gone
     async, which is more of a practical test case rather than something
     that is used in the wild (Dylan)"

* tag 'io_uring-5.19-2022-07-01' of git://git.kernel.dk/linux-block:
  io_uring: fix provided buffer import
  io_uring: keep sendrecv flags in ioprio
2022-07-01 10:52:01 -07:00
Linus Torvalds
d516e221e2 block-5.19-2022-07-01
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Merge tag 'block-5.19-2022-07-01' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:

 - Fix for batch getting of tags in sbitmap (wuchi)

 - NVMe pull request via Christoph:
      - More quirks (Lamarque Vieira Souza, Pablo Greco)
      - Fix a fabrics disconnect regression (Ruozhu Li)
      - Fix a nvmet-tcp data_digest calculation regression (Sagi
        Grimberg)
      - Fix nvme-tcp send failure handling (Sagi Grimberg)
      - Fix a regression with nvmet-loop and passthrough controllers
        (Alan Adamson)

* tag 'block-5.19-2022-07-01' of git://git.kernel.dk/linux-block:
  nvme-pci: add NVME_QUIRK_BOGUS_NID for ADATA IM2P33F8ABR1
  nvmet: add a clear_ids attribute for passthru targets
  nvme: fix regression when disconnect a recovering ctrl
  nvme-pci: add NVME_QUIRK_BOGUS_NID for ADATA XPG SX6000LNP (AKA SPECTRIX S40G)
  nvme-tcp: always fail a request when sending it failed
  nvmet-tcp: fix regression in data_digest calculation
  lib/sbitmap: Fix invalid loop in __sbitmap_queue_get_batch()
2022-07-01 10:42:10 -07:00
Linus Torvalds
067c227379 SCSI fixes on 20220701
One simple driver fix for a dma overrun.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fix from James Bottomley:
 "One simple driver fix for a dma overrun"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: hisi_sas: Limit max hw sectors for v3 HW
2022-07-01 10:38:17 -07:00
Linus Torvalds
690685ffcd ATA fixes for 5.19-rc5
* Fix a compilation warning with some versions of gcc/sparse when
   compiling the pata_cs5535 driver, from John.
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Merge tag 'ata-5.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata

Pull ATA fix from Damien Le Moal:

 - Fix a compilation warning with some versions of gcc/sparse when
   compiling the pata_cs5535 driver, from John.

* tag 'ata-5.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata:
  ata: pata_cs5535: Fix W=1 warnings
2022-07-01 10:31:44 -07:00
Will Deacon
4109823037 arm64: hugetlb: Restore TLB invalidation for BBM on contiguous ptes
Commit fb396bb459 ("arm64/hugetlb: Drop TLB flush from get_clear_flush()")
removed TLB invalidation from get_clear_flush() [now get_clear_contig()]
on the basis that the core TLB invalidation code is aware of hugetlb
mappings backed by contiguous page-table entries and will cover the
correct virtual address range.

However, this change also resulted in the TLB invalidation being removed
from the "break" step in the break-before-make (BBM) sequence used
internally by huge_ptep_set_{access_flags,wrprotect}(), therefore
making the BBM sequence unsafe irrespective of later invalidation.

Although the architecture is desperately unclear about how exactly
contiguous ptes should be updated in a live page-table, restore TLB
invalidation to our BBM sequence under the assumption that BBM is the
right thing to be doing in the first place.

Fixes: fb396bb459 ("arm64/hugetlb: Drop TLB flush from get_clear_flush()")
Cc: Ard Biesheuvel <ardb@kernel.org>
Cc: Steve Capper <steve.capper@arm.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Marc Zyngier <maz@kernel.org>
Signed-off-by: Will Deacon <will@kernel.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Link: https://lore.kernel.org/r/20220629095349.25748-1-will@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2022-07-01 18:29:26 +01:00
Linus Torvalds
9650910d05 Two small fixes
- Initialize a spinlock in the stm32 reset code
  - Add dt bindings to the clk maintainer filepattern
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Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk fixes from Stephen Boyd:
 "Two small fixes

   - Initialize a spinlock in the stm32 reset code

   - Add dt bindings to the clk maintainer filepattern"

* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
  MAINTAINERS: add include/dt-bindings/clock to COMMON CLK FRAMEWORK
  clk: stm32: rcc_reset: Fix missing spin_lock_init()
2022-07-01 10:01:32 -07:00
Darrick J. Wong
7561cea5db xfs: prevent a UAF when log IO errors race with unmount
KASAN reported the following use after free bug when running
generic/475:

 XFS (dm-0): Mounting V5 Filesystem
 XFS (dm-0): Starting recovery (logdev: internal)
 XFS (dm-0): Ending recovery (logdev: internal)
 Buffer I/O error on dev dm-0, logical block 20639616, async page read
 Buffer I/O error on dev dm-0, logical block 20639617, async page read
 XFS (dm-0): log I/O error -5
 XFS (dm-0): Filesystem has been shut down due to log error (0x2).
 XFS (dm-0): Unmounting Filesystem
 XFS (dm-0): Please unmount the filesystem and rectify the problem(s).
 ==================================================================
 BUG: KASAN: use-after-free in do_raw_spin_lock+0x246/0x270
 Read of size 4 at addr ffff888109dd84c4 by task 3:1H/136

 CPU: 3 PID: 136 Comm: 3:1H Not tainted 5.19.0-rc4-xfsx #rc4 8e53ab5ad0fddeb31cee5e7063ff9c361915a9c4
 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.15.0-1 04/01/2014
 Workqueue: xfs-log/dm-0 xlog_ioend_work [xfs]
 Call Trace:
  <TASK>
  dump_stack_lvl+0x34/0x44
  print_report.cold+0x2b8/0x661
  ? do_raw_spin_lock+0x246/0x270
  kasan_report+0xab/0x120
  ? do_raw_spin_lock+0x246/0x270
  do_raw_spin_lock+0x246/0x270
  ? rwlock_bug.part.0+0x90/0x90
  xlog_force_shutdown+0xf6/0x370 [xfs 4ad76ae0d6add7e8183a553e624c31e9ed567318]
  xlog_ioend_work+0x100/0x190 [xfs 4ad76ae0d6add7e8183a553e624c31e9ed567318]
  process_one_work+0x672/0x1040
  worker_thread+0x59b/0xec0
  ? __kthread_parkme+0xc6/0x1f0
  ? process_one_work+0x1040/0x1040
  ? process_one_work+0x1040/0x1040
  kthread+0x29e/0x340
  ? kthread_complete_and_exit+0x20/0x20
  ret_from_fork+0x1f/0x30
  </TASK>

 Allocated by task 154099:
  kasan_save_stack+0x1e/0x40
  __kasan_kmalloc+0x81/0xa0
  kmem_alloc+0x8d/0x2e0 [xfs]
  xlog_cil_init+0x1f/0x540 [xfs]
  xlog_alloc_log+0xd1e/0x1260 [xfs]
  xfs_log_mount+0xba/0x640 [xfs]
  xfs_mountfs+0xf2b/0x1d00 [xfs]
  xfs_fs_fill_super+0x10af/0x1910 [xfs]
  get_tree_bdev+0x383/0x670
  vfs_get_tree+0x7d/0x240
  path_mount+0xdb7/0x1890
  __x64_sys_mount+0x1fa/0x270
  do_syscall_64+0x2b/0x80
  entry_SYSCALL_64_after_hwframe+0x46/0xb0

 Freed by task 154151:
  kasan_save_stack+0x1e/0x40
  kasan_set_track+0x21/0x30
  kasan_set_free_info+0x20/0x30
  ____kasan_slab_free+0x110/0x190
  slab_free_freelist_hook+0xab/0x180
  kfree+0xbc/0x310
  xlog_dealloc_log+0x1b/0x2b0 [xfs]
  xfs_unmountfs+0x119/0x200 [xfs]
  xfs_fs_put_super+0x6e/0x2e0 [xfs]
  generic_shutdown_super+0x12b/0x3a0
  kill_block_super+0x95/0xd0
  deactivate_locked_super+0x80/0x130
  cleanup_mnt+0x329/0x4d0
  task_work_run+0xc5/0x160
  exit_to_user_mode_prepare+0xd4/0xe0
  syscall_exit_to_user_mode+0x1d/0x40
  entry_SYSCALL_64_after_hwframe+0x46/0xb0

This appears to be a race between the unmount process, which frees the
CIL and waits for in-flight iclog IO; and the iclog IO completion.  When
generic/475 runs, it starts fsstress in the background, waits a few
seconds, and substitutes a dm-error device to simulate a disk falling
out of a machine.  If the fsstress encounters EIO on a pure data write,
it will exit but the filesystem will still be online.

The next thing the test does is unmount the filesystem, which tries to
clean the log, free the CIL, and wait for iclog IO completion.  If an
iclog was being written when the dm-error switch occurred, it can race
with log unmounting as follows:

Thread 1				Thread 2

					xfs_log_unmount
					xfs_log_clean
					xfs_log_quiesce
xlog_ioend_work
<observe error>
xlog_force_shutdown
test_and_set_bit(XLOG_IOERROR)
					xfs_log_force
					<log is shut down, nop>
					xfs_log_umount_write
					<log is shut down, nop>
					xlog_dealloc_log
					xlog_cil_destroy
					<wait for iclogs>
spin_lock(&log->l_cilp->xc_push_lock)
<KABOOM>

Therefore, free the CIL after waiting for the iclogs to complete.  I
/think/ this race has existed for quite a few years now, though I don't
remember the ~2014 era logging code well enough to know if it was a real
threat then or if the actual race was exposed only more recently.

Fixes: ac983517ec ("xfs: don't sleep in xlog_cil_force_lsn on shutdown")
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
2022-07-01 09:09:52 -07:00
Linus Torvalds
a175eca0f3 drm fixes for 5.19-rc5
fbdev:
 - sysfb fixes/conflicting fb fixes.
 
 amdgpu:
 - GPU recovery fix
 - Fix integer type usage in fourcc header for AMD modifiers
 - KFD TLB flush fix for gfx9 APUs
 - Display fix
 
 i915:
 - Fix ioctl argument error return
 - Fix d3cold disable to allow PCI upstream bridge D3 transition
 - Fix setting cache_dirty for dma-buf objects on discrete
 
 msm:
 - Fix to increment vsync_cnt before calling drm_crtc_handle_vblank so that
   userspace sees the value *after* it is incremented if waiting for vblank
   events
 - Fix to reset drm_dev to NULL in dp_display_unbind to avoid a crash in
   probe/bind error paths
 - Fix to resolve the smatch error of de-referencing before NULL check in
   dpu_encoder_phys_wb.c
 - Fix error return to userspace if fence-id allocation fails in submit
   ioctl
 
 vc4:
 - NULL ptr dereference fix
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Merge tag 'drm-fixes-2022-07-01' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "Bit quieter this week, the main thing is it pulls in the fixes for the
  sysfb resource issue you were seeing. these had been queued for next
  so should have had some decent testing.

  Otherwise amdgpu, i915 and msm each have a few fixes, and vc4 has one.

  fbdev:
   - sysfb fixes/conflicting fb fixes

  amdgpu:
   - GPU recovery fix

   - Fix integer type usage in fourcc header for AMD modifiers

   - KFD TLB flush fix for gfx9 APUs

   - Display fix

  i915:
   - Fix ioctl argument error return

   - Fix d3cold disable to allow PCI upstream bridge D3 transition

   - Fix setting cache_dirty for dma-buf objects on discrete

  msm:
   - Fix to increment vsync_cnt before calling drm_crtc_handle_vblank so
     that userspace sees the value *after* it is incremented if waiting
     for vblank events

   - Fix to reset drm_dev to NULL in dp_display_unbind to avoid a crash
     in probe/bind error paths

   - Fix to resolve the smatch error of de-referencing before NULL check
     in dpu_encoder_phys_wb.c

   - Fix error return to userspace if fence-id allocation fails in
     submit ioctl

  vc4:
   - NULL ptr dereference fix"

* tag 'drm-fixes-2022-07-01' of git://anongit.freedesktop.org/drm/drm:
  Revert "drm/amdgpu/display: set vblank_disable_immediate for DC"
  drm/amdgpu: To flush tlb for MMHUB of RAVEN series
  drm/fourcc: fix integer type usage in uapi header
  drm/amdgpu: fix adev variable used in amdgpu_device_gpu_recover()
  fbdev: Disable sysfb device registration when removing conflicting FBs
  firmware: sysfb: Add sysfb_disable() helper function
  firmware: sysfb: Make sysfb_create_simplefb() return a pdev pointer
  drm/msm/gem: Fix error return on fence id alloc fail
  drm/i915: tweak the ordering in cpu_write_needs_clflush
  drm/i915/dgfx: Disable d3cold at gfx root port
  drm/i915/gem: add missing else
  drm/vc4: perfmon: Fix variable dereferenced before check
  drm/msm/dpu: Fix variable dereferenced before check
  drm/msm/dp: reset drm_dev to NULL at dp_display_unbind()
  drm/msm/dpu: Increment vsync_cnt before waking up userspace
2022-06-30 17:19:19 -07:00
Dave Airlie
b8f0009bc9 A NULL pointer dereference fix for vc4, and 3 patches to improve the
sysfb device behaviour when removing conflicting framebuffers
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Merge tag 'drm-misc-fixes-2022-06-30' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

A NULL pointer dereference fix for vc4, and 3 patches to improve the
sysfb device behaviour when removing conflicting framebuffers

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20220630072404.2fa4z3nk5h5q34ci@houat
2022-07-01 09:27:55 +10:00
Linus Torvalds
5e8379351d Including fixes from netfilter.
Current release - new code bugs:
 
  - clear msg_get_inq in __sys_recvfrom() and __copy_msghdr_from_user()
 
  - mptcp:
    - invoke MP_FAIL response only when needed
    - fix shutdown vs fallback race
    - consistent map handling on failure
 
  - octeon_ep: use bitwise AND
 
 Previous releases - regressions:
 
  - tipc: move bc link creation back to tipc_node_create, fix NPD
 
 Previous releases - always broken:
 
  - tcp: add a missing nf_reset_ct() in 3WHS handling, prevent socket
    buffered skbs from keeping refcount on the conntrack module
 
  - ipv6: take care of disable_policy when restoring routes
 
  - tun: make sure to always disable and unlink NAPI instances
 
  - phy: don't trigger state machine while in suspend
 
  - netfilter: nf_tables: avoid skb access on nf_stolen
 
  - asix: fix "can't send until first packet is send" issue
 
  - usb: asix: do not force pause frames support
 
  - nxp-nci: don't issue a zero length i2c_master_read()
 
 Misc:
 
  - ncsi: allow use of proper "mellanox" DT vendor prefix
 
  - act_api: add a message for user space if any actions were already
    flushed before the error was hit
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-5.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski:
 "Including fixes from netfilter.

  Current release - new code bugs:

   - clear msg_get_inq in __sys_recvfrom() and __copy_msghdr_from_user()

   - mptcp:
      - invoke MP_FAIL response only when needed
      - fix shutdown vs fallback race
      - consistent map handling on failure

   - octeon_ep: use bitwise AND

  Previous releases - regressions:

   - tipc: move bc link creation back to tipc_node_create, fix NPD

  Previous releases - always broken:

   - tcp: add a missing nf_reset_ct() in 3WHS handling to prevent socket
     buffered skbs from keeping refcount on the conntrack module

   - ipv6: take care of disable_policy when restoring routes

   - tun: make sure to always disable and unlink NAPI instances

   - phy: don't trigger state machine while in suspend

   - netfilter: nf_tables: avoid skb access on nf_stolen

   - asix: fix "can't send until first packet is send" issue

   - usb: asix: do not force pause frames support

   - nxp-nci: don't issue a zero length i2c_master_read()

  Misc:

   - ncsi: allow use of proper "mellanox" DT vendor prefix

   - act_api: add a message for user space if any actions were already
     flushed before the error was hit"

* tag 'net-5.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (55 commits)
  net: dsa: felix: fix race between reading PSFP stats and port stats
  selftest: tun: add test for NAPI dismantle
  net: tun: avoid disabling NAPI twice
  net: sparx5: mdb add/del handle non-sparx5 devices
  net: sfp: fix memory leak in sfp_probe()
  mlxsw: spectrum_router: Fix rollback in tunnel next hop init
  net: rose: fix UAF bugs caused by timer handler
  net: usb: ax88179_178a: Fix packet receiving
  net: bonding: fix use-after-free after 802.3ad slave unbind
  ipv6: fix lockdep splat in in6_dump_addrs()
  net: phy: ax88772a: fix lost pause advertisement configuration
  net: phy: Don't trigger state machine while in suspend
  usbnet: fix memory allocation in helpers
  selftests net: fix kselftest net fatal error
  NFC: nxp-nci: don't print header length mismatch on i2c error
  NFC: nxp-nci: Don't issue a zero length i2c_master_read()
  net: tipc: fix possible refcount leak in tipc_sk_create()
  nfc: nfcmrvl: Fix irq_of_parse_and_map() return value
  net: ipv6: unexport __init-annotated seg6_hmac_net_init()
  ipv6/sit: fix ipip6_tunnel_get_prl return value
  ...
2022-06-30 15:26:55 -07:00
Amir Goldstein
868f9f2f8e vfs: fix copy_file_range() regression in cross-fs copies
A regression has been reported by Nicolas Boichat, found while using the
copy_file_range syscall to copy a tracefs file.

Before commit 5dae222a5f ("vfs: allow copy_file_range to copy across
devices") the kernel would return -EXDEV to userspace when trying to
copy a file across different filesystems.  After this commit, the
syscall doesn't fail anymore and instead returns zero (zero bytes
copied), as this file's content is generated on-the-fly and thus reports
a size of zero.

Another regression has been reported by He Zhe - the assertion of
WARN_ON_ONCE(ret == -EOPNOTSUPP) can be triggered from userspace when
copying from a sysfs file whose read operation may return -EOPNOTSUPP.

Since we do not have test coverage for copy_file_range() between any two
types of filesystems, the best way to avoid these sort of issues in the
future is for the kernel to be more picky about filesystems that are
allowed to do copy_file_range().

This patch restores some cross-filesystem copy restrictions that existed
prior to commit 5dae222a5f ("vfs: allow copy_file_range to copy across
devices"), namely, cross-sb copy is not allowed for filesystems that do
not implement ->copy_file_range().

Filesystems that do implement ->copy_file_range() have full control of
the result - if this method returns an error, the error is returned to
the user.  Before this change this was only true for fs that did not
implement the ->remap_file_range() operation (i.e.  nfsv3).

Filesystems that do not implement ->copy_file_range() still fall-back to
the generic_copy_file_range() implementation when the copy is within the
same sb.  This helps the kernel can maintain a more consistent story
about which filesystems support copy_file_range().

nfsd and ksmbd servers are modified to fall-back to the
generic_copy_file_range() implementation in case vfs_copy_file_range()
fails with -EOPNOTSUPP or -EXDEV, which preserves behavior of
server-side-copy.

fall-back to generic_copy_file_range() is not implemented for the smb
operation FSCTL_DUPLICATE_EXTENTS_TO_FILE, which is arguably a correct
change of behavior.

Fixes: 5dae222a5f ("vfs: allow copy_file_range to copy across devices")
Link: https://lore.kernel.org/linux-fsdevel/20210212044405.4120619-1-drinkcat@chromium.org/
Link: https://lore.kernel.org/linux-fsdevel/CANMq1KDZuxir2LM5jOTm0xx+BnvW=ZmpsG47CyHFJwnw7zSX6Q@mail.gmail.com/
Link: https://lore.kernel.org/linux-fsdevel/20210126135012.1.If45b7cdc3ff707bc1efa17f5366057d60603c45f@changeid/
Link: https://lore.kernel.org/linux-fsdevel/20210630161320.29006-1-lhenriques@suse.de/
Reported-by: Nicolas Boichat <drinkcat@chromium.org>
Reported-by: kernel test robot <oliver.sang@intel.com>
Signed-off-by: Luis Henriques <lhenriques@suse.de>
Fixes: 64bf5ff58d ("vfs: no fallback for ->copy_file_range")
Link: https://lore.kernel.org/linux-fsdevel/20f17f64-88cb-4e80-07c1-85cb96c83619@windriver.com/
Reported-by: He Zhe <zhe.he@windriver.com>
Tested-by: Namjae Jeon <linkinjeon@kernel.org>
Tested-by: Luis Henriques <lhenriques@suse.de>
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-06-30 15:16:38 -07:00
Chuck Lever
a23dd544de SUNRPC: Fix READ_PLUS crasher
Looks like there are still cases when "space_left - frag1bytes" can
legitimately exceed PAGE_SIZE. Ensure that xdr->end always remains
within the current encode buffer.

Reported-by: Bruce Fields <bfields@fieldses.org>
Reported-by: Zorro Lang <zlang@redhat.com>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216151
Fixes: 6c254bf3b6 ("SUNRPC: Fix the calculation of xdr->end in xdr_get_next_encode_buffer()")
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2022-06-30 17:41:08 -04:00
Scott Mayhew
4f40a5b554 NFSv4: Add an fattr allocation to _nfs4_discover_trunking()
This was missed in c3ed222745 ("NFSv4: Fix free of uninitialized
nfs4_label on referral lookup.") and causes a panic when mounting
with '-o trunkdiscovery':

PID: 1604   TASK: ffff93dac3520000  CPU: 3   COMMAND: "mount.nfs"
 #0 [ffffb79140f738f8] machine_kexec at ffffffffaec64bee
 #1 [ffffb79140f73950] __crash_kexec at ffffffffaeda67fd
 #2 [ffffb79140f73a18] crash_kexec at ffffffffaeda76ed
 #3 [ffffb79140f73a30] oops_end at ffffffffaec2658d
 #4 [ffffb79140f73a50] general_protection at ffffffffaf60111e
    [exception RIP: nfs_fattr_init+0x5]
    RIP: ffffffffc0c18265  RSP: ffffb79140f73b08  RFLAGS: 00010246
    RAX: 0000000000000000  RBX: ffff93dac304a800  RCX: 0000000000000000
    RDX: ffffb79140f73bb0  RSI: ffff93dadc8cbb40  RDI: d03ee11cfaf6bd50
    RBP: ffffb79140f73be8   R8: ffffffffc0691560   R9: 0000000000000006
    R10: ffff93db3ffd3df8  R11: 0000000000000000  R12: ffff93dac4040000
    R13: ffff93dac2848e00  R14: ffffb79140f73b60  R15: ffffb79140f73b30
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
 #5 [ffffb79140f73b08] _nfs41_proc_get_locations at ffffffffc0c73d53 [nfsv4]
 #6 [ffffb79140f73bf0] nfs4_proc_get_locations at ffffffffc0c83e90 [nfsv4]
 #7 [ffffb79140f73c60] nfs4_discover_trunking at ffffffffc0c83fb7 [nfsv4]
 #8 [ffffb79140f73cd8] nfs_probe_fsinfo at ffffffffc0c0f95f [nfs]
 #9 [ffffb79140f73da0] nfs_probe_server at ffffffffc0c1026a [nfs]
    RIP: 00007f6254fce26e  RSP: 00007ffc69496ac8  RFLAGS: 00000246
    RAX: ffffffffffffffda  RBX: 0000000000000000  RCX: 00007f6254fce26e
    RDX: 00005600220a82a0  RSI: 00005600220a64d0  RDI: 00005600220a6520
    RBP: 00007ffc69496c50   R8: 00005600220a8710   R9: 003035322e323231
    R10: 0000000000000000  R11: 0000000000000246  R12: 00007ffc69496c50
    R13: 00005600220a8440  R14: 0000000000000010  R15: 0000560020650ef9
    ORIG_RAX: 00000000000000a5  CS: 0033  SS: 002b

Fixes: c3ed222745 ("NFSv4: Fix free of uninitialized nfs4_label on referral lookup.")
Signed-off-by: Scott Mayhew <smayhew@redhat.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2022-06-30 16:13:00 -04:00
NeilBrown
080abad71e NFS: restore module put when manager exits.
Commit f49169c97f ("NFSD: Remove svc_serv_ops::svo_module") removed
calls to module_put_and_kthread_exit() from threads that acted as SUNRPC
servers and had a related svc_serv_ops structure.  This was correct.

It ALSO removed the module_put_and_kthread_exit() call from
nfs4_run_state_manager() which is NOT a SUNRPC service.

Consequently every time the NFSv4 state manager runs the module count
increments and won't be decremented.  So the nfsv4 module cannot be
unloaded.

So restore the module_put_and_kthread_exit() call.

Fixes: f49169c97f ("NFSD: Remove svc_serv_ops::svo_module")
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2022-06-30 16:13:00 -04:00
Jens Axboe
f3163d8567 nvme fixes for Linux 5.19
- more quirks (Lamarque Vieira Souza, Pablo Greco)
  - fix a fabrics disconnect regression (Ruozhu Li)
  - fix a nvmet-tcp data_digest calculation regression (Sagi Grimberg)
  - fix nvme-tcp send failure handling (Sagi Grimberg)
  - fix a regression with nvmet-loop and passthrough controllers
    (Alan Adamson)
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Merge tag 'nvme-5.19-2022-06-30' of git://git.infradead.org/nvme into block-5.19

Pull NVMe fixes from Christoph:

"nvme fixes for Linux 5.19

 - more quirks (Lamarque Vieira Souza, Pablo Greco)
 - fix a fabrics disconnect regression (Ruozhu Li)
 - fix a nvmet-tcp data_digest calculation regression (Sagi Grimberg)
 - fix nvme-tcp send failure handling (Sagi Grimberg)
 - fix a regression with nvmet-loop and passthrough controllers
   (Alan Adamson)"

* tag 'nvme-5.19-2022-06-30' of git://git.infradead.org/nvme:
  nvme-pci: add NVME_QUIRK_BOGUS_NID for ADATA IM2P33F8ABR1
  nvmet: add a clear_ids attribute for passthru targets
  nvme: fix regression when disconnect a recovering ctrl
  nvme-pci: add NVME_QUIRK_BOGUS_NID for ADATA XPG SX6000LNP (AKA SPECTRIX S40G)
  nvme-tcp: always fail a request when sending it failed
  nvmet-tcp: fix regression in data_digest calculation
2022-06-30 14:00:11 -06:00
Vladimir Oltean
58bf4db695 net: dsa: felix: fix race between reading PSFP stats and port stats
Both PSFP stats and the port stats read by ocelot_check_stats_work() are
indirectly read through the same mechanism - write to STAT_CFG:STAT_VIEW,
read from SYS:STAT:CNT[n].

It's just that for port stats, we write STAT_VIEW with the index of the
port, and for PSFP stats, we write STAT_VIEW with the filter index.

So if we allow them to run concurrently, ocelot_check_stats_work() may
change the view from vsc9959_psfp_counters_get(), and vice versa.

Fixes: 7d4b564d6a ("net: dsa: felix: support psfp filter on vsc9959")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://lore.kernel.org/r/20220629183007.3808130-1-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-06-30 11:37:09 -07:00
Jakub Kicinski
839b92fede selftest: tun: add test for NAPI dismantle
Being lazy does not pay, add the test for various
ordering of tun queue close / detach / destroy.

Link: https://lore.kernel.org/r/20220629181911.372047-2-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-06-30 11:34:10 -07:00
Jakub Kicinski
ff1fa2081d net: tun: avoid disabling NAPI twice
Eric reports that syzbot made short work out of my speculative
fix. Indeed when queue gets detached its tfile->tun remains,
so we would try to stop NAPI twice with a detach(), close()
sequence.

Alternative fix would be to move tun_napi_disable() to
tun_detach_all() and let the NAPI run after the queue
has been detached.

Fixes: a8fc8cb569 ("net: tun: stop NAPI when detaching queues")
Reported-by: syzbot <syzkaller@googlegroups.com>
Reported-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20220629181911.372047-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-06-30 11:34:10 -07:00
Casper Andersson
9c5de246c1 net: sparx5: mdb add/del handle non-sparx5 devices
When adding/deleting mdb entries on other net_devices, eg., tap
interfaces, it should not crash.

Fixes: 3bacfccdcb ("net: sparx5: Add mdb handlers")
Signed-off-by: Casper Andersson <casper.casan@gmail.com>
Reviewed-by: Steen Hegelund <Steen.Hegelund@microchip.com>
Link: https://lore.kernel.org/r/20220630122226.316812-1-casper.casan@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-06-30 11:32:54 -07:00
Sumeet Pawnikar
62f46fc7b8 thermal: intel_tcc_cooling: Add TCC cooling support for RaptorLake
Add RaptorLake to the list of processor models supported by the Intel
TCC cooling driver.

Signed-off-by: Sumeet Pawnikar <sumeet.r.pawnikar@intel.com>
[ rjw: Subject edits, new changelog ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2022-06-30 19:48:44 +02:00
Zhang Jiaming
d7d488f41b s390/qdio: Fix spelling mistake
Change 'defineable' to 'definable'.
Change 'paramater' to 'parameter'.

Signed-off-by: Zhang Jiaming <jiaming@nfschina.com>
Reviewed-by: Benjamin Block <bblock@linux.ibm.com>
Link: https://lore.kernel.org/r/20220623060543.12870-1-jiaming@nfschina.com
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
2022-06-30 19:40:36 +02:00
Jiang Jian
d608f45ed3 s390/sclp: Fix typo in comments
Remove the repeated word 'and' from comments

Signed-off-by: Jiang Jian <jiangjian@cdjrlc.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20220622142713.14187-1-jiangjian@cdjrlc.com
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
2022-06-30 19:40:36 +02:00
Jason A. Donenfeld
e4f7440030 s390/archrandom: simplify back to earlier design and initialize earlier
s390x appears to present two RNG interfaces:
- a "TRNG" that gathers entropy using some hardware function; and
- a "DRBG" that takes in a seed and expands it.

Previously, the TRNG was wired up to arch_get_random_{long,int}(), but
it was observed that this was being called really frequently, resulting
in high overhead. So it was changed to be wired up to arch_get_random_
seed_{long,int}(), which was a reasonable decision. Later on, the DRBG
was then wired up to arch_get_random_{long,int}(), with a complicated
buffer filling thread, to control overhead and rate.

Fortunately, none of the performance issues matter much now. The RNG
always attempts to use arch_get_random_seed_{long,int}() first, which
means a complicated implementation of arch_get_random_{long,int}() isn't
really valuable or useful to have around. And it's only used when
reseeding, which means it won't hit the high throughput complications
that were faced before.

So this commit returns to an earlier design of just calling the TRNG in
arch_get_random_seed_{long,int}(), and returning false in arch_get_
random_{long,int}().

Part of what makes the simplification possible is that the RNG now seeds
itself using the TRNG at bootup. But this only works if the TRNG is
detected early in boot, before random_init() is called. So this commit
also causes that check to happen in setup_arch().

Cc: stable@vger.kernel.org
Cc: Harald Freudenberger <freude@linux.ibm.com>
Cc: Ingo Franzki <ifranzki@linux.ibm.com>
Cc: Juergen Christ <jchrist@linux.ibm.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Link: https://lore.kernel.org/r/20220610222023.378448-1-Jason@zx2c4.com
Reviewed-by: Harald Freudenberger <freude@linux.ibm.com>
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
2022-06-30 19:40:36 +02:00
Dylan Yudaken
09007af2b6 io_uring: fix provided buffer import
io_import_iovec uses the s pointer, but this was changed immediately
after the iovec was re-imported and so it was imported into the wrong
place.

Change the ordering.

Fixes: 2be2eb02e2 ("io_uring: ensure reads re-import for selected buffers")
Signed-off-by: Dylan Yudaken <dylany@fb.com>
Link: https://lore.kernel.org/r/20220630132006.2825668-1-dylany@fb.com
[axboe: ensure we don't half-import as well]
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-06-30 11:34:41 -06:00
Linus Torvalds
1a0e93df1e First v5.19 rc pull request
Three minor bug fixes:
 
 - qedr not setting the QP timeout properly toward userspace
 
 - Memory leak on error path in ib_cm
 
 - Divide by 0 in RDMA interrupt moderation
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

Pull rdma fixes from Jason Gunthorpe:
 "Three minor bug fixes:

   - qedr not setting the QP timeout properly toward userspace

   - Memory leak on error path in ib_cm

   - Divide by 0 in RDMA interrupt moderation"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
  linux/dim: Fix divide by 0 in RDMA DIM
  RDMA/cm: Fix memory leak in ib_cm_insert_listen
  RDMA/qedr: Fix reporting QP timeout attribute
2022-06-30 10:03:22 -07:00