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* Fix ata_find_dev() use of the device number to find a struct
ata_device for a port. This addresses issues with some passthrough
commands with libsas managed devices.
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Merge tag 'ata-6.4-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata
Pull ata fix from Damien Le Moal:
- Fix ata_find_dev() use of the device number to find a struct
ata_device for a port. This addresses issues with some passthrough
commands with libsas managed devices.
* tag 'ata-6.4-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata:
ata: libata-scsi: Use correct device no in ata_find_dev()
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Merge tag '6.4-rc4-smb3-server-fixes' of git://git.samba.org/ksmbd
Pull smb server fixes from Steve French:
"Eight server fixes (most also for stable):
- Two fixes for uninitialized pointer reads (rename and link)
- Fix potential UAF in oplock break
- Two fixes for potential out of bound reads in negotiate
- Fix crediting bug
- Two fixes for xfstests (allocation size fix for test 694 and lookup
issue shown by test 464)"
* tag '6.4-rc4-smb3-server-fixes' of git://git.samba.org/ksmbd:
ksmbd: call putname after using the last component
ksmbd: fix incorrect AllocationSize set in smb2_get_info
ksmbd: fix UAF issue from opinfo->conn
ksmbd: fix multiple out-of-bounds read during context decoding
ksmbd: fix slab-out-of-bounds read in smb2_handle_negotiate
ksmbd: fix credit count leakage
ksmbd: fix uninitialized pointer read in smb2_create_link()
ksmbd: fix uninitialized pointer read in ksmbd_vfs_rename()
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Merge tag '6.4-rc4-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull smb client fixes from Steve French:
"Four small smb3 client fixes:
- two small fixes suggested by kernel test robot
- small cleanup fix
- update Paulo's email address in the maintainer file"
* tag '6.4-rc4-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
cifs: address unused variable warning
smb: delete an unnecessary statement
smb3: missing null check in SMB2_change_notify
smb3: update a reviewer email in MAINTAINERS file
Small rc bug fixes:
- Fix 64K ARM page size support in bnxt_re and efa
- bnxt_re fixes for a memory leak, incorrect error handling and a remove a
bogus FW failure when running on a VF
- Update MAINTAINERS for hns and efa
- Fix two rxe regressions added this merge window in error unwind and
incorrect spinlock primitives
- hns gets a better algorithm for allocating page tables to avoid running
out of resources, and a timeout adjustment
- Fix a text case failure in hns
- Use after free in irdma and fix incorrect construction of a WQE causing
mis-execution
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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:
- Fix 64K ARM page size support in bnxt_re and efa
- bnxt_re fixes for a memory leak, incorrect error handling and a
remove a bogus FW failure when running on a VF
- Update MAINTAINERS for hns and efa
- Fix two rxe regressions added this merge window in error unwind and
incorrect spinlock primitives
- hns gets a better algorithm for allocating page tables to avoid
running out of resources, and a timeout adjustment
- Fix a text case failure in hns
- Use after free in irdma and fix incorrect construction of a WQE
causing mis-execution
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
RDMA/irdma: Fix Local Invalidate fencing
RDMA/irdma: Prevent QP use after free
MAINTAINERS: Update maintainer of Amazon EFA driver
RDMA/bnxt_re: Do not enable congestion control on VFs
RDMA/bnxt_re: Fix return value of bnxt_re_process_raw_qp_pkt_rx
RDMA/bnxt_re: Fix a possible memory leak
RDMA/hns: Modify the value of long message loopback slice
RDMA/hns: Fix base address table allocation
RDMA/hns: Fix timeout attr in query qp for HIP08
RDMA/efa: Fix unsupported page sizes in device
RDMA/rxe: Convert spin_{lock_bh,unlock_bh} to spin_{lock_irqsave,unlock_irqrestore}
RDMA/rxe: Fix double unlock in rxe_qp.c
MAINTAINERS: Update maintainers of HiSilicon RoCE
RDMA/bnxt_re: Fix the page_size used during the MR creation
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Merge tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 fixes from Ted Ts'o:
"Fix two regressions in ext4 and a number of issues reported by syzbot"
* tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext4: enable the lazy init thread when remounting read/write
ext4: fix fsync for non-directories
ext4: add lockdep annotations for i_data_sem for ea_inode's
ext4: disallow ea_inodes with extended attributes
ext4: set lockdep subclass for the ea_inode in ext4_xattr_inode_cache_find()
ext4: add EA_INODE checking to ext4_iget()
If an attempt at contacting a receiver or a device fails because the
receiver or device never responds, don't restart the communication, only
restart it if the receiver or device answers that it's busy, as originally
intended.
This was the behaviour on communication timeout before commit 586e8fede795
("HID: logitech-hidpp: Retry commands when device is busy").
This fixes some overly long waits in a critical path on boot, when
checking whether the device is connected by getting its HID++ version.
Signed-off-by: Bastien Nocera <hadess@hadess.net>
Suggested-by: Mark Lord <mlord@pobox.com>
Fixes: 586e8fede795 ("HID: logitech-hidpp: Retry commands when device is busy")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=217412
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Merge tag 'for-6.4-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
"One bug fix and two build warning fixes:
- call proper end bio callback for metadata RAID0 in a rare case of
an unaligned block
- fix uninitialized variable (reported by gcc 10.2)
- fix warning about potential access beyond array bounds on mips64
with 64k pages (runtime check would not allow that)"
* tag 'for-6.4-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: fix csum_tree_block page iteration to avoid tripping on -Werror=array-bounds
btrfs: fix an uninitialized variable warning in btrfs_log_inode
btrfs: call btrfs_orig_bbio_end_io in btrfs_end_bio_work
- Fix BPF CO-RE naming convention for checking the availability of fields on
'union perf_mem_data_src' on the running kernel.
- Remove the use of llvm-strip on BPF skel object files, not needed, fixes a
build breakage when the llvm package, that contains it in most distros, isn't
installed.
- Fix tools that use both evsel->{bpf_counter_list,bpf_filters}, removing them from a
union.
- Remove extra "--" from the 'perf ftrace latency' --use-nsec option,
previously it was working only when using the '-n' alternative.
- Don't stop building when both binutils-devel and a C++ compiler isn't
available to compile the alternative C++ demangle support code, disable that
feature instead.
- Sync the linux/in.h and coresight-pmu.h header copies with the kernel sources.
- Fix relative include path to cs-etm.h.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-tools-fixes-for-v6.4-2-2023-05-30' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux
Pull perf tools fixes from Arnaldo Carvalho de Melo:
- Fix BPF CO-RE naming convention for checking the availability of
fields on 'union perf_mem_data_src' on the running kernel
- Remove the use of llvm-strip on BPF skel object files, not needed,
fixes a build breakage when the llvm package, that contains it in
most distros, isn't installed
- Fix tools that use both evsel->{bpf_counter_list,bpf_filters},
removing them from a union
- Remove extra "--" from the 'perf ftrace latency' --use-nsec option,
previously it was working only when using the '-n' alternative
- Don't stop building when both binutils-devel and a C++ compiler isn't
available to compile the alternative C++ demangle support code,
disable that feature instead
- Sync the linux/in.h and coresight-pmu.h header copies with the kernel
sources
- Fix relative include path to cs-etm.h
* tag 'perf-tools-fixes-for-v6.4-2-2023-05-30' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
perf evsel: Separate bpf_counter_list and bpf_filters, can be used at the same time
tools headers UAPI: Sync the linux/in.h with the kernel sources
perf cs-etm: Copy kernel coresight-pmu.h header
perf bpf: Do not use llvm-strip on BPF binary
perf build: Don't compile demangle-cxx.cpp if not necessary
perf arm: Fix include path to cs-etm.h
perf bpf filter: Fix a broken perf sample data naming for BPF CO-RE
perf ftrace latency: Remove unnecessary "--" from --use-nsec option
The most important fix here is for missing dropping of the RCU read lock
when syncing maple tree register caches, the physical devices I have
that use the code don't do any syncing so I'd only ever tested this with
virtual devices and missed the fact that we need to drop the lock in
order to write to buses that need to sleep. Otherwise there's a fix for
an edge case when splitting up large batch writes which has been lurking
for a long time, a check to make sure nobody writes new drivers with a
bug that was found in several SoundWire drivers and a tweak to the way
the new kunit tests are enabled to ensure they don't cause regmap to be
enabled when it wouldn't otherwise be.
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Merge tag 'regmap-fix-v6.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap
Pull regmap fixes from Mark Brown:
"The most important fix here is for missing dropping of the RCU read
lock when syncing maple tree register caches, the physical devices I
have that use the code don't do any syncing so I'd only ever tested
this with virtual devices and missed the fact that we need to drop the
lock in order to write to buses that need to sleep.
Otherwise there's a fix for an edge case when splitting up large batch
writes which has been lurking for a long time, a check to make sure
nobody writes new drivers with a bug that was found in several
SoundWire drivers and a tweak to the way the new kunit tests are
enabled to ensure they don't cause regmap to be enabled when it
wouldn't otherwise be"
* tag 'regmap-fix-v6.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
regmap: maple: Drop the RCU read lock while syncing registers
regmap: sdw: check for invalid multi-register writes config
regmap: Account for register length when chunking
regmap: REGMAP_KUNIT should not select REGMAP
A fix is provided for ia64. Even though ia64 is on life support it helps
to fix issues if we can. Thanks to Linus for doing tons of the ia64
debugging.
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Merge tag 'modules-6.4-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux
Pull modules fix from Luis Chamberlain:
"A fix is provided for ia64. Even though ia64 is on life support it
helps to fix issues if we can. Thanks to Linus for doing tons of the
ia64 debugging"
* tag 'modules-6.4-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux:
module: fix module load for ia64
In commit a44be64bbecb ("ext4: don't clear SB_RDONLY when remounting
r/w until quota is re-enabled") we defer clearing tyhe SB_RDONLY flag
in struct super. However, we didn't defer when we checked sb_rdonly()
to determine the lazy itable init thread should be enabled, with the
next result that the lazy inode table initialization would not be
properly started. This can cause generic/231 to fail in ext4's
nojournal mode.
Fix this by moving when we decide to start or stop the lazy itable
init thread to after we clear the SB_RDONLY flag when we are
remounting the file system read/write.
Fixes a44be64bbecb ("ext4: don't clear SB_RDONLY when remounting r/w until...")
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Link: https://lore.kernel.org/r/20230527035729.1001605-1-tytso@mit.edu
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Commit e360c6ed7274 ("ext4: Drop special handling of journalled data
from ext4_sync_file()") simplified ext4_sync_file() by dropping special
handling of journalled data mode as it was not needed anymore. However
that branch was also used for directories and symlinks and since the
fastcommit code does not track metadata changes to non-regular files, the
change has caused e.g. fsync(2) on directories to not commit transaction
as it should. Fix the problem by adding handling for non-regular files.
Fixes: e360c6ed7274 ("ext4: Drop special handling of journalled data from ext4_sync_file()")
Reported-by: Eric Whitney <enwlinux@gmail.com>
Link: https://lore.kernel.org/all/ZFqO3xVnmhL7zv1x@debian-BULLSEYE-live-builder-AMD64
Signed-off-by: Jan Kara <jack@suse.cz>
Tested-by: Eric Whitney <enwlinux@gmail.com>
Link: https://lore.kernel.org/r/20230524104453.8734-1-jack@suse.cz
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
If the ea_inode has been pushed out of the inode cache while there is
still a reference in the mb_cache, the lockdep subclass will not be
set on the inode, which can lead to some lockdep false positives.
Fixes: 33d201e0277b ("ext4: fix lockdep warning about recursive inode locking")
Cc: stable@kernel.org
Reported-by: syzbot+d4b971e744b1f5439336@syzkaller.appspotmail.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Link: https://lore.kernel.org/r/20230524034951.779531-3-tytso@mit.edu
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
For devices not attached to a port multiplier and managed directly by
libata, the device number passed to ata_find_dev() must always be lower
than the maximum number of devices returned by ata_link_max_devices().
That is 1 for SATA devices or 2 for an IDE link with master+slave
devices. This device number is the SCSI device ID which matches these
constraints as the IDs are generated per port and so never exceed the
maximum number of devices for the link being used.
However, for libsas managed devices, SCSI device IDs are assigned per
struct scsi_host, leading to device IDs for SATA devices that can be
well in excess of libata per-link maximum number of devices. This
results in ata_find_dev() to always return NULL for libsas managed
devices except for the first device of the target scsi_host with ID
(device number) equal to 0. This issue is visible by executing the
hdparm utility, which fails. E.g.:
hdparm -i /dev/sdX
/dev/sdX:
HDIO_GET_IDENTITY failed: No message of desired type
Fix this by rewriting ata_find_dev() to ignore the device number for
non-PMP attached devices with a link with at most 1 device, that is SATA
devices. For these, the device number 0 is always used to
return the correct pointer to the struct ata_device of the port link.
This change excludes IDE master/slave setups (maximum number of devices
per link is 2) and port-multiplier attached devices. Also, to be
consistant with the fact that SCSI device IDs and channel numbers used
as device numbers are both unsigned int, change the devno argument of
ata_find_dev() to unsigned int.
Reported-by: Xingui Yang <yangxingui@huawei.com>
Fixes: 41bda9c98035 ("libata-link: update hotplug to handle PMP links")
Cc: stable@vger.kernel.org
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Jason Yan <yanaijie@huawei.com>
If the local invalidate fence is indicated in the WR, only the read fence
is currently being set in WQE. Fix this to set both the read and local
fence in the WQE.
Fixes: b48c24c2d710 ("RDMA/irdma: Implement device supported verb APIs")
Link: https://lore.kernel.org/r/20230522155654.1309-4-shiraz.saleem@intel.com
Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
There is a window where the poll cq may use a QP that has been freed.
This can happen if a CQE is polled before irdma_clean_cqes() can clear the
CQE's related to the QP and the destroy QP races to free the QP memory.
then the QP structures are used in irdma_poll_cq. Fix this by moving the
clearing of CQE's before the reference is removed and the QP is destroyed.
Fixes: b48c24c2d710 ("RDMA/irdma: Implement device supported verb APIs")
Link: https://lore.kernel.org/r/20230522155654.1309-3-shiraz.saleem@intel.com
Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Change EFA driver maintainer from Gal Pressman to myself. Keep Gal as a
reviewer at his request.
Link: https://lore.kernel.org/r/20230525094444.12570-1-mrgolin@amazon.com
Signed-off-by: Michael Margolin <mrgolin@amazon.com>
Acked-by: Gal Pressman <gal.pressman@linux.dev>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
User events:
- Use long instead of int for storing the enable set/clear bit, as it was
found that big endian machines could end up using the wrong bits.
- Split allocating mm and attaching it. This keeps the allocation separate
from the registration and avoids various races.
- Remove RCU locking around pin_user_pages_remote() as that can schedule. The
RCU protection is no longer needed with the above split of mm allocation and
attaching.
- Rename the "link" fields of the various structs to something more
meaningful.
- Add comments around user_event_mm struct usage and locking requirements.
Timerlat tracer:
- Fix missed wakeup of timerlat thread caused by the timerlat interrupt
triggering when tracing is off. The timer interrupt handler needs to always
wake up the timerlat thread regardless if tracing is enabled or not,
otherwise, it will never wake up.
Histograms:
- Fix regression of breaking the "stacktrace" modifier for variables. That
modifier cannot be used for values, but can be used for variables that are
passed from one histogram to the next. This was broken when adding the
restriction to values as the variable logic used the same code.
- Rename the special field "stacktrace" to "common_stacktrace". Special fields
(that are not actually part of the event, but can act just like event
fields, like 'comm' and 'timestamp') should be prefixed with 'common_' for
consistency. To keep backward compatibility, 'stacktrace' can still be used
(as with the special field 'cpu'), but can be overridden if the event has a
field called 'stacktrace'.
- Update the synthetic event selftests to use the new name (synthetic events
are created by histograms)
Tracing bootup selftests:
- Reorganize the code to keep artifacts of the selftests not compiled in when
selftests are not configured.
- Add various cond_resched() around the selftest code, as the softlock
watchdog was triggering much more often. It appears that the kernel runs
slower now with full debugging enabled.
- While debugging ftrace with ftrace (using an instance ring buffer instead of
the top level one), I found that the selftests were disabling prints to the
debug instance. This should not happen, as the selftests only disable
printing to the main buffer as the selftests examine the main buffer to see
if it has what it expects, and prints can make the tests fail. Make the
selftests only disable printing to the toplevel buffer, and leave the
instance buffers alone.
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Merge tag 'trace-v6.4-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing fixes from Steven Rostedt:
"User events:
- Use long instead of int for storing the enable set/clear bit, as it
was found that big endian machines could end up using the wrong
bits.
- Split allocating mm and attaching it. This keeps the allocation
separate from the registration and avoids various races.
- Remove RCU locking around pin_user_pages_remote() as that can
schedule. The RCU protection is no longer needed with the above
split of mm allocation and attaching.
- Rename the "link" fields of the various structs to something more
meaningful.
- Add comments around user_event_mm struct usage and locking
requirements.
Timerlat tracer:
- Fix missed wakeup of timerlat thread caused by the timerlat
interrupt triggering when tracing is off. The timer interrupt
handler needs to always wake up the timerlat thread regardless if
tracing is enabled or not, otherwise, it will never wake up.
Histograms:
- Fix regression of breaking the "stacktrace" modifier for variables.
That modifier cannot be used for values, but can be used for
variables that are passed from one histogram to the next. This was
broken when adding the restriction to values as the variable logic
used the same code.
- Rename the special field "stacktrace" to "common_stacktrace".
Special fields (that are not actually part of the event, but can
act just like event fields, like 'comm' and 'timestamp') should be
prefixed with 'common_' for consistency. To keep backward
compatibility, 'stacktrace' can still be used (as with the special
field 'cpu'), but can be overridden if the event has a field called
'stacktrace'.
- Update the synthetic event selftests to use the new name (synthetic
events are created by histograms)
Tracing bootup selftests:
- Reorganize the code to keep artifacts of the selftests not compiled
in when selftests are not configured.
- Add various cond_resched() around the selftest code, as the
softlock watchdog was triggering much more often. It appears that
the kernel runs slower now with full debugging enabled.
- While debugging ftrace with ftrace (using an instance ring buffer
instead of the top level one), I found that the selftests were
disabling prints to the debug instance.
This should not happen, as the selftests only disable printing to
the main buffer as the selftests examine the main buffer to see if
it has what it expects, and prints can make the tests fail.
Make the selftests only disable printing to the toplevel buffer,
and leave the instance buffers alone"
* tag 'trace-v6.4-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
tracing: Have function_graph selftest call cond_resched()
tracing: Only make selftest conditionals affect the global_trace
tracing: Make tracing_selftest_running/delete nops when not used
tracing: Have tracer selftests call cond_resched() before running
tracing: Move setting of tracing_selftest_running out of register_tracer()
tracing/selftests: Update synthetic event selftest to use common_stacktrace
tracing: Rename stacktrace field to common_stacktrace
tracing/histograms: Allow variables to have some modifiers
tracing/user_events: Document user_event_mm one-shot list usage
tracing/user_events: Rename link fields for clarity
tracing/user_events: Remove RCU lock while pinning pages
tracing/user_events: Split up mm alloc and attach
tracing/timerlat: Always wakeup the timerlat thread
tracing/user_events: Use long vs int for atomic bit ops
This reverts commit 9828ed3f695a138f7add89fa2a186ababceb8006.
Sadly, it does seem to cause failures to load modules. Johan Hovold reports:
"This change breaks module loading during boot on the Lenovo Thinkpad
X13s (aarch64).
Specifically it results in indefinite probe deferral of the display
and USB (ethernet) which makes it a pain to debug. Typing in the dark
to acquire some logs reveals that other modules are missing as well"
Since this was applied late as a "let's try this", I'm reverting it
asap, and we can try to figure out what goes wrong later. The excessive
parallel module loading problem is annoying, but not noticeable in
normal situations, and this was only meant as an optimistic workaround
for a user-space bug.
One possible solution may be to do the optimistic exclusive open first,
and then use a lock to serialize loading if that fails.
Reported-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/lkml/ZHRpH-JXAxA6DnzR@hovoldconsulting.com/
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
When all kernel debugging is enabled (lockdep, KSAN, etc), the function
graph enabling and disabling can take several seconds to complete. The
function_graph selftest enables and disables function graph tracing
several times. With full debugging enabled, the soft lockup watchdog was
triggering because the selftest was running without ever scheduling.
Add cond_resched() throughout the test to make sure it does not trigger
the soft lockup detector.
Link: https://lkml.kernel.org/r/20230528051742.1325503-6-rostedt@goodmis.org
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
The tracing_selftest_running and tracing_selftest_disabled variables were
to keep trace_printk() and other writes from affecting the tracing
selftests, as the tracing selftests would examine the ring buffer to see
if it contained what it expected or not. trace_printk() and friends could
add to the ring buffer and cause the selftests to fail (and then disable
the tracer that was being tested). To keep that from happening, these
variables were added and would keep trace_printk() and friends from
writing to the ring buffer while the tests were going on.
But this was only the top level ring buffer (owned by the global_trace
instance). There is no reason to prevent writing into ring buffers of
other instances via the trace_array_printk() and friends. For the
functions that could be used by other instances, check if the global_trace
is the tracer instance that is being written to before deciding to not
allow the write.
Link: https://lkml.kernel.org/r/20230528051742.1325503-5-rostedt@goodmis.org
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
There's no reason to test the condition variables tracing_selftest_running
or tracing_selftest_delete when tracing selftests are not enabled. Make
them define 0s when not the selftests are not configured in.
Link: https://lkml.kernel.org/r/20230528051742.1325503-4-rostedt@goodmis.org
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
As there are more and more internal selftests being added to the Linux
kernel (KSAN, lockdep, etc) the selftests are taking longer to run when
these are enabled. Add a cond_resched() to the calling of
do_run_tracer_selftest() to force a schedule if NEED_RESCHED is set,
otherwise the soft lockup watchdog may trigger on boot up.
Link: https://lkml.kernel.org/r/20230528051742.1325503-3-rostedt@goodmis.org
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
The variables tracing_selftest_running and tracing_selftest_disabled are
only used for when CONFIG_FTRACE_STARTUP_TEST is enabled. Make them only
visible within the selftest code. The setting of those variables are in
the register_tracer() call, and set in a location where they do not need
to be. Create a wrapper around run_tracer_selftest() called
do_run_tracer_selftest() which sets those variables, and have
register_tracer() call that instead.
Having those variables only set within the CONFIG_FTRACE_STARTUP_TEST
scope gets rid of them (and also the ability to remove testing against
them) when the startup tests are not enabled (most cases).
Link: https://lkml.kernel.org/r/20230528051742.1325503-2-rostedt@goodmis.org
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
- AT HDMAC driver fixes for Flow Controller bitfield, peripheral ID
handling and potential NULL dereference check
- PL330 function rename to avoid conflicts
- build warning fix for pm function in TI driver
- IDXD driver fix for passing freed memory
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Merge tag 'dmaengine-fix-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine
Pull dmaengine fixes from Vinod Koul:
"Driver fixes for the at-hdmac, pl330, TI and IDXD drivers:
- AT HDMAC driver fixes for Flow Controller bitfield, peripheral ID
handling and potential NULL dereference check
- PL330 function rename to avoid conflicts
- build warning fix for pm function in TI driver
- IDXD driver fix for passing freed memory"
* tag 'dmaengine-fix-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine:
dmaengine: at_hdmac: Extend the Flow Controller bitfield to three bits
dmaengine: at_hdmac: Repair bitfield macros for peripheral ID handling
dmaengine: pl330: rename _start to prevent build error
dmaengine: at_xdmac: fix potential Oops in at_xdmac_prep_interleaved()
dmaengine: ti: k3-udma: annotate pm function with __maybe_unused
dmaengine: idxd: Fix passing freed memory in idxd_cdev_open()
- Prevent a bogus setting for the number of HT siblings, which is caused
by the CPUID evaluation trainwreck of X86. That recomputes the value
for each CPU, so the last CPU "wins". That can cause completely bogus
sibling values.
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Merge tag 'x86-urgent-2023-05-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 cpu fix from Thomas Gleixner:
"A single fix for x86:
- Prevent a bogus setting for the number of HT siblings, which is
caused by the CPUID evaluation trainwreck of X86. That recomputes
the value for each CPU, so the last CPU "wins". That can cause
completely bogus sibling values"
* tag 'x86-urgent-2023-05-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/topology: Fix erroneous smp_num_siblings on Intel Hybrid platforms
- Make the CHA discovery based on MSR readout to work around broken
discovery tables in some SPR firmwares.
- Prevent saving PEBS configuration which has software bits set that
cause a crash when restored into the relevant MSR.
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Merge tag 'perf-urgent-2023-05-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Thomas Gleixner:
"A small set of perf fixes:
- Make the MSR-readout based CHA discovery work around broken
discovery tables in some SPR firmwares.
- Prevent saving PEBS configuration which has software bits set that
cause a crash when restored into the relevant MSR"
* tag 'perf-urgent-2023-05-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/x86/uncore: Correct the number of CHAs on SPR
perf/x86/intel: Save/restore cpuc->active_pebs_data_cfg when using guest PEBS
- Ensure that the stack pointer on x86 is aligned again so that the
unwinder does not read past the end of the stack
- Discard .note.gnu.property section which has a pointlessly different
alignment than the other note sections. That confuses tooling of all
sorts including readelf, libbpf and pahole.
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Merge tag 'objtool-urgent-2023-05-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull unwinder fixes from Thomas Gleixner:
"A set of unwinder and tooling fixes:
- Ensure that the stack pointer on x86 is aligned again so that the
unwinder does not read past the end of the stack
- Discard .note.gnu.property section which has a pointlessly
different alignment than the other note sections. That confuses
tooling of all sorts including readelf, libbpf and pahole"
* tag 'objtool-urgent-2023-05-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/show_trace_log_lvl: Ensure stack pointer is aligned, again
vmlinux.lds.h: Discard .note.gnu.property section
- Prevent that the allocation path wakes up kswapd. That's a long
standing issue due to the GFP_ATOMIC allocation flag. As debug objects
can be invoked from pretty much any context waking kswapd can end up
in arbitrary lock chains versus the waitqueue lock.
- Correct the explicit lockdep wait-type violation in
debug_object_fill_pool().
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Merge tag 'core-debugobjects-2023-05-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull debugobjects fixes from Thomas Gleixner:
"Two fixes for debugobjects:
- Prevent the allocation path from waking up kswapd.
That's a long standing issue due to the GFP_ATOMIC allocation flag.
As debug objects can be invoked from pretty much any context waking
kswapd can end up in arbitrary lock chains versus the waitqueue
lock
- Correct the explicit lockdep wait-type violation in
debug_object_fill_pool()"
* tag 'core-debugobjects-2023-05-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
debugobjects: Don't wake up kswapd from fill_pool()
debugobjects,locking: Annotate debug_object_fill_pool() wait type violation
- Prevent loss of state in the MIPS GIC interrupt controller.
- Disable pseudo NMIs on Mediatek based Chromebooks as they have
firmware issues which cause instantenous chrashes and freezes
wen pseudo NMIs are used.
- Fix the error handling path in the MBIGEN driver and a defined but not
used warning in the meson-gpio interrupt chip driver.
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Merge tag 'irq-urgent-2023-05-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Thomas Gleixner:
"A set of fixes for interrupt chip drivers:
- Prevent loss of state in the MIPS GIC interrupt controller
- Disable pseudo NMIs on Mediatek based Chromebooks as they have
firmware issues which cause instantenous chrashes and freezes wen
pseudo NMIs are used
- Fix the error handling path in the MBIGEN driver and a defined but
not used warning in the meson-gpio interrupt chip driver"
* tag 'irq-urgent-2023-05-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/mbigen: Unify the error handling in mbigen_of_create_domain()
irqchip/meson-gpio: Mark OF related data as maybe unused
irqchip/mips-gic: Use raw spinlock for gic_lock
irqchip/mips-gic: Don't touch vl_map if a local interrupt is not routable
irqchip/gic-v3: Disable pseudo NMIs on Mediatek devices w/ firmware issues
dt-bindings: interrupt-controller: arm,gic-v3: Add quirk for Mediatek SoCs w/ broken FW
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Merge tag 'for-linus-6.4-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen fixes from Juergen Gross:
- a double free fix in the Xen pvcalls backend driver
- a fix for a regression causing the MSI related sysfs entries to not
being created in Xen PV guests
- a fix in the Xen blkfront driver for handling insane input data
better
* tag 'for-linus-6.4-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
x86/pci/xen: populate MSI sysfs entries
xen/pvcalls-back: fix double frees with pvcalls_new_active_socket()
xen/blkfront: Only check REQ_FUA for writes
Here are some small driver fixes for 6.4-rc4. They are just two
different types:
- binder fixes and reverts for reported problems and regressions in
the binder "driver".
- coresight driver fixes for reported problems.
All of these have been in linux-next for over a week with no reported
problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-6.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc fixes from Greg KH:
"Here are some small driver fixes for 6.4-rc4. They are just two
different types:
- binder fixes and reverts for reported problems and regressions in
the binder "driver".
- coresight driver fixes for reported problems.
All of these have been in linux-next for over a week with no reported
problems"
* tag 'char-misc-6.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
binder: fix UAF of alloc->vma in race with munmap()
binder: add lockless binder_alloc_(set|get)_vma()
Revert "android: binder: stop saving a pointer to the VMA"
Revert "binder_alloc: add missing mmap_lock calls when using the VMA"
binder: fix UAF caused by faulty buffer cleanup
coresight: perf: Release Coresight path when alloc trace id failed
coresight: Fix signedness bug in tmc_etr_buf_insert_barrier_packet()
Fix trivial unused variable warning (when SMB1 support disabled)
"ioctl.c:324:17: warning: variable 'caps' set but not used [-Wunused-but-set-variable]"
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202305250056.oZhsJmdD-lkp@intel.com/
Signed-off-by: Steve French <stfrench@microsoft.com>
We don't need to set the list iterators to NULL before a
list_for_each_entry() loop because they are assigned inside the
macro.
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Mukesh Ojha <quic_mojha@quicinc.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
last component point filename struct. Currently putname is called after
vfs_path_parent_lookup(). And then last component is used for
lookup_one_qstr_excl(). name in last component is freed by previous
calling putname(). And It cause file lookup failure when testing
generic/464 test of xfstest.
Fixes: 74d7970febf7 ("ksmbd: fix racy issue from using ->d_parent and ->d_name")
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
If filesystem support sparse file, ksmbd should return allocated size
using ->i_blocks instead of stat->size. This fix generic/694 xfstests.
Cc: stable@vger.kernel.org
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
If opinfo->conn is another connection and while ksmbd send oplock break
request to cient on current connection, The connection for opinfo->conn
can be disconnect and conn could be freed. When sending oplock break
request, this ksmbd_conn can be used and cause user-after-free issue.
When getting opinfo from the list, ksmbd check connection is being
released. If it is not released, Increase ->r_count to wait that connection
is freed.
Cc: stable@vger.kernel.org
Reported-by: Per Forlin <per.forlin@axis.com>
Tested-by: Per Forlin <per.forlin@axis.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Check the remaining data length before accessing the context structure
to ensure that the entire structure is contained within the packet.
Additionally, since the context data length `ctxt_len` has already been
checked against the total packet length `len_of_ctxts`, update the
comparison to use `ctxt_len`.
Cc: stable@vger.kernel.org
Signed-off-by: Kuan-Ting Chen <h3xrabbit@gmail.com>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
This patch fix the failure from smb2.credits.single_req_credits_granted
test. When client send 8192 credit request, ksmbd return 8191 credit
granted. ksmbd should give maximum possible credits that must be granted
within the range of not exceeding the max credit to client.
Cc: stable@vger.kernel.org
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
