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A fix for an issue with double locking that was introduced earlier this
release. I'd missed in review that we were already in a locked region
when trying to drop part of the cache.
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Merge tag 'regmap-fix-v4.8-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap
Pull regmap fix from Mark Brown:
"A fix for an issue with double locking that was introduced earlier
this release. I'd missed in review that we were already in a locked
region when trying to drop part of the cache"
* tag 'regmap-fix-v4.8-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
regmap: fix deadlock on _regmap_raw_write() error path
Pull crypto fixes from Herbert Xu:
"This fixes a regression in RSA that was only half-fixed earlier in the
cycle. It also fixes an older regression that breaks the keyring
subsystem"
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: rsa-pkcs1pad - Handle leading zero for decryption
KEYS: Fix skcipher IV clobbering
- Fix kgdb breakpoint insertion in read-only text sections (when
CONFIG_DEBUG_RODATA or CONFIG_DEBUG_SET_MODULE_RONX are enabled)
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas:
"A couple of last-minute arm64 fixes for 4.8:
- Fix secondary CPU to NUMA node assignment
- Fix kgdb breakpoint insertion in read-only text sections (when
CONFIG_DEBUG_RODATA or CONFIG_DEBUG_SET_MODULE_RONX are enabled)"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: kgdb: handle read-only text / modules
arm64: Call numa_store_cpu_info() earlier.
- Fix a wrong OOB layout definition in the mxc driver
- Fix incorrect ECC handling in the mtk driver
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Merge tag 'tags/nand-fixes-for-4.8-rc8' of git://git.infradead.org/linux-ubifs
Pull MTD fixes from Richard Weinberger:
"NAND Fixes for 4.8-rc8.
This contains fixes for bugs which got introduced in -rc1. Usually
Brian takes NAND patches from Boris, but since Brian is very busy
these days with other stuff and Boris is not yet member of the
kernel.org web of trust I stepped in.
Boris will be in Berlin at ELCE, I'll sign his key and hopefully other
Kernel developers too such that he can issue his own pull requests
soon.
Summary:
- Fix a wrong OOB layout definition in the mxc driver
- Fix incorrect ECC handling in the mtk driver"
* tag 'tags/nand-fixes-for-4.8-rc8' of git://git.infradead.org/linux-ubifs:
mtd: nand: mxc: fix obiwan error in mxc_nand_v[12]_ooblayout_free() functions
mtd: nand: fix chances to create incomplete ECC data when writing
mtd: nand: fix generating over-boundary ECC data when writing
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Merge tag 'configfs-for-4.8-2' of git://git.infradead.org/users/hch/configfs
Pull configfs fix from Christoph Hellwig:
"One more trivial fix for the binary attribute code from Phil Turnbull"
* tag 'configfs-for-4.8-2' of git://git.infradead.org/users/hch/configfs:
configfs: Return -EFBIG from configfs_write_bin_file.
Handle read-only cases when CONFIG_DEBUG_RODATA (4.0) or
CONFIG_DEBUG_SET_MODULE_RONX (3.18) are enabled by using
aarch64_insn_write() instead of probe_kernel_write() as introduced by
commit 2f896d5866 ("arm64: use fixmap for text patching") in 4.0.
Fixes: 11d91a770f ("arm64: Add CONFIG_DEBUG_SET_MODULE_RONX support")
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
The wq_numa_init() function makes a private CPU to node map by calling
cpu_to_node() early in the boot process, before the non-boot CPUs are
brought online. Since the default implementation of cpu_to_node()
returns zero for CPUs that have never been brought online, the
workqueue system's view is that *all* CPUs are on node zero.
When the unbound workqueue for a non-zero node is created, the
tsk_cpus_allowed() for the worker threads is the empty set because
there are, in the view of the workqueue system, no CPUs on non-zero
nodes. The code in try_to_wake_up() using this empty cpumask ends up
using the cpumask empty set value of NR_CPUS as an index into the
per-CPU area pointer array, and gets garbage as it is one past the end
of the array. This results in:
[ 0.881970] Unable to handle kernel paging request at virtual address fffffb1008b926a4
[ 1.970095] pgd = fffffc00094b0000
[ 1.973530] [fffffb1008b926a4] *pgd=0000000000000000, *pud=0000000000000000, *pmd=0000000000000000
[ 1.982610] Internal error: Oops: 96000004 [#1] SMP
[ 1.987541] Modules linked in:
[ 1.990631] CPU: 48 PID: 295 Comm: cpuhp/48 Tainted: G W 4.8.0-rc6-preempt-vol+ #9
[ 1.999435] Hardware name: Cavium ThunderX CN88XX board (DT)
[ 2.005159] task: fffffe0fe89cc300 task.stack: fffffe0fe8b8c000
[ 2.011158] PC is at try_to_wake_up+0x194/0x34c
[ 2.015737] LR is at try_to_wake_up+0x150/0x34c
[ 2.020318] pc : [<fffffc00080e7468>] lr : [<fffffc00080e7424>] pstate: 600000c5
[ 2.027803] sp : fffffe0fe8b8fb10
[ 2.031149] x29: fffffe0fe8b8fb10 x28: 0000000000000000
[ 2.036522] x27: fffffc0008c63bc8 x26: 0000000000001000
[ 2.041896] x25: fffffc0008c63c80 x24: fffffc0008bfb200
[ 2.047270] x23: 00000000000000c0 x22: 0000000000000004
[ 2.052642] x21: fffffe0fe89d25bc x20: 0000000000001000
[ 2.058014] x19: fffffe0fe89d1d00 x18: 0000000000000000
[ 2.063386] x17: 0000000000000000 x16: 0000000000000000
[ 2.068760] x15: 0000000000000018 x14: 0000000000000000
[ 2.074133] x13: 0000000000000000 x12: 0000000000000000
[ 2.079505] x11: 0000000000000000 x10: 0000000000000000
[ 2.084879] x9 : 0000000000000000 x8 : 0000000000000000
[ 2.090251] x7 : 0000000000000040 x6 : 0000000000000000
[ 2.095621] x5 : ffffffffffffffff x4 : 0000000000000000
[ 2.100991] x3 : 0000000000000000 x2 : 0000000000000000
[ 2.106364] x1 : fffffc0008be4c24 x0 : ffffff0ffffada80
[ 2.111737]
[ 2.113236] Process cpuhp/48 (pid: 295, stack limit = 0xfffffe0fe8b8c020)
[ 2.120102] Stack: (0xfffffe0fe8b8fb10 to 0xfffffe0fe8b90000)
[ 2.125914] fb00: fffffe0fe8b8fb80 fffffc00080e7648
.
.
.
[ 2.442859] Call trace:
[ 2.445327] Exception stack(0xfffffe0fe8b8f940 to 0xfffffe0fe8b8fa70)
[ 2.451843] f940: fffffe0fe89d1d00 0000040000000000 fffffe0fe8b8fb10 fffffc00080e7468
[ 2.459767] f960: fffffe0fe8b8f980 fffffc00080e4958 ffffff0ff91ab200 fffffc00080e4b64
[ 2.467690] f980: fffffe0fe8b8f9d0 fffffc00080e515c fffffe0fe8b8fa80 0000000000000000
[ 2.475614] f9a0: fffffe0fe8b8f9d0 fffffc00080e58e4 fffffe0fe8b8fa80 0000000000000000
[ 2.483540] f9c0: fffffe0fe8d10000 0000000000000040 fffffe0fe8b8fa50 fffffc00080e5ac4
[ 2.491465] f9e0: ffffff0ffffada80 fffffc0008be4c24 0000000000000000 0000000000000000
[ 2.499387] fa00: 0000000000000000 ffffffffffffffff 0000000000000000 0000000000000040
[ 2.507309] fa20: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
[ 2.515233] fa40: 0000000000000000 0000000000000000 0000000000000000 0000000000000018
[ 2.523156] fa60: 0000000000000000 0000000000000000
[ 2.528089] [<fffffc00080e7468>] try_to_wake_up+0x194/0x34c
[ 2.533723] [<fffffc00080e7648>] wake_up_process+0x28/0x34
[ 2.539275] [<fffffc00080d3764>] create_worker+0x110/0x19c
[ 2.544824] [<fffffc00080d69dc>] alloc_unbound_pwq+0x3cc/0x4b0
[ 2.550724] [<fffffc00080d6bcc>] wq_update_unbound_numa+0x10c/0x1e4
[ 2.557066] [<fffffc00080d7d78>] workqueue_online_cpu+0x220/0x28c
[ 2.563234] [<fffffc00080bd288>] cpuhp_invoke_callback+0x6c/0x168
[ 2.569398] [<fffffc00080bdf74>] cpuhp_up_callbacks+0x44/0xe4
[ 2.575210] [<fffffc00080be194>] cpuhp_thread_fun+0x13c/0x148
[ 2.581027] [<fffffc00080dfbac>] smpboot_thread_fn+0x19c/0x1a8
[ 2.586929] [<fffffc00080dbd64>] kthread+0xdc/0xf0
[ 2.591776] [<fffffc0008083380>] ret_from_fork+0x10/0x50
[ 2.597147] Code: b00057e1 91304021 91005021 b8626822 (b8606821)
[ 2.603464] ---[ end trace 58c0cd36b88802bc ]---
[ 2.608138] Kernel panic - not syncing: Fatal exception
Fix by moving call to numa_store_cpu_info() for all CPUs into
smp_prepare_cpus(), which happens before wq_numa_init(). Since
smp_store_cpu_info() now contains only a single function call,
simplify by removing the function and out-lining its contents.
Suggested-by: Robert Richter <rric@kernel.org>
Fixes: 1a2db30034 ("arm64, numa: Add NUMA support for arm64 platforms.")
Cc: <stable@vger.kernel.org> # 4.7.x-
Signed-off-by: David Daney <david.daney@cavium.com>
Reviewed-by: Robert Richter <rrichter@cavium.com>
Tested-by: Yisheng Xie <xieyisheng1@huawei.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Pull networking fixes from David Miller:
"Mostly small bits scattered all over the place, which is usually how
things go this late in the -rc series.
1) Proper driver init device resets in bnx2, from Baoquan He.
2) Fix accounting overflow in __tcp_retransmit_skb(),
sk_forward_alloc, and ip_idents_reserve, from Eric Dumazet.
3) Fix crash in bna driver ethtool stats handling, from Ivan Vecera.
4) Missing check of skb_linearize() return value in mac80211, from
Johannes Berg.
5) Endianness fix in nf_table_trace dumps, from Liping Zhang.
6) SSN comparison fix in SCTP, from Marcelo Ricardo Leitner.
7) Update DSA and b44 MAINTAINERS entries.
8) Make input path of vti6 driver work again, from Nicolas Dichtel.
9) Off-by-one in mlx4, from Sebastian Ott.
10) Fix fallback route lookup handling in ipv6, from Vincent Bernat.
11) Fix stack corruption on probe in qed driver, from Yuval Mintz.
12) PHY init fixes in r8152 from Hayes Wang.
13) Missing SKB free in irda_accept error path, from Phil Turnbull"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (61 commits)
tcp: properly account Fast Open SYN-ACK retrans
tcp: fix under-accounting retransmit SNMP counters
MAINTAINERS: Update b44 maintainer.
net: get rid of an signed integer overflow in ip_idents_reserve()
net/mlx4_core: Fix to clean devlink resources
net: can: ifi: Configure transmitter delay
vti6: fix input path
ipmr, ip6mr: return lastuse relative to now
r8152: disable ALDPS and EEE before setting PHY
r8152: remove r8153_enable_eee
r8152: move PHY settings to hw_phy_cfg
r8152: move enabling PHY
r8152: move some functions
cxgb4/cxgb4vf: Allocate more queues for 25G and 100G adapter
qed: Fix stack corruption on probe
MAINTAINERS: Add an entry for the core network DSA code
net: ipv6: fallback to full lookup if table lookup is unsuitable
net/mlx5: E-Switch, Handle mode change failures
net/mlx5: E-Switch, Fix error flow in the SRIOV e-switch init code
net/mlx5: Fix flow counter bulk command out mailbox allocation
...
Commit 815806e39b ("regmap: drop cache if the bus transfer error")
added a call to regcache_drop_region() to error path in
_regmap_raw_write(). However that path runs with regmap lock taken,
and regcache_drop_region() tries to re-take it, causing a deadlock.
Fix that by calling map->cache_ops->drop() directly.
Signed-off-by: Nikita Yushchenko <nikita.yoush@cogentembedded.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
As the software RSA implementation now produces fixed-length
output, we need to eliminate leading zeros in the calling code
instead.
This patch does just that for pkcs1pad decryption while signature
verification was fixed in an earlier patch.
Fixes: 9b45b7bba3 ("crypto: rsa - Generate fixed-length output")
Reported-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
The IV must not be modified by the skcipher operation so we need
to duplicate it.
Fixes: c3917fd9df ("KEYS: Use skcipher")
Cc: stable@vger.kernel.org
Reported-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
When there is no Card which is set to "broken-cd", it's displayed a clock
information continuously. Because it's polling for detecting card.
This patch is fixed this problem.
Fixes: 65257a0dee ("mmc: dw_mmc: remove UBSAN warning in dw_mci_setup_bus()")
Reported-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Since the TFO socket is accepted right off SYN-data, the socket
owner can call getsockopt(TCP_INFO) to collect ongoing SYN-ACK
retransmission or timeout stats (i.e., tcpi_total_retrans,
tcpi_retransmits). Currently those stats are only updated
upon handshake completes. This patch fixes it.
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch fixes these under-accounting SNMP rtx stats
LINUX_MIB_TCPFORWARDRETRANS
LINUX_MIB_TCPFASTRETRANS
LINUX_MIB_TCPSLOWSTARTRETRANS
when retransmitting TSO packets
Fixes: 10d3be5692 ("tcp-tso: do not split TSO packets at retransmit time")
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Steffen Klassert says:
====================
pull request (net): ipsec 2016-09-21
1) Propagate errors on security context allocation.
From Mathias Krause.
2) Fix inbound policy checks for inter address family tunnels.
From Thomas Zeitlhofer.
3) Fix an old memory leak on aead algorithm usage.
From Ilan Tayari.
4) A recent patch fixed a possible NULL pointer dereference
but broke the vti6 input path.
Fix from Nicolas Dichtel.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Merge tag 'linux-can-fixes-for-4.8-20160921' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can
Marc Kleine-Budde says:
====================
pull-request: can 2016-09-21
this is another pull request of one patch for the upcoming linux-4.8 release.
Marek Vasut fixes the CAN-FD bit rate switch in the ifi driver by configuring
the transmitter delay.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Taking over as maintainer since Gary Zambrano is no longer working
for Broadcom.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Pirko reported an UBSAN warning happening in ip_idents_reserve()
[] UBSAN: Undefined behaviour in ./arch/x86/include/asm/atomic.h:156:11
[] signed integer overflow:
[] -2117905507 + -695755206 cannot be represented in type 'int'
Since we do not have uatomic_add_return() yet, use atomic_cmpxchg()
so that the arithmetics can be done using unsigned int.
Fixes: 04ca6973f7 ("ip: make IP identifiers less predictable")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch cleans devlink resources by calling devlink_port_unregister()
to avoid the following issues:
- Kernel panic when triggering reset flow.
- Memory leak due to unfreed resources in mlx4_init_port_info().
Fixes: 09d4d087cd ("mlx4: Implement devlink interface")
Signed-off-by: Kamal Heib <kamalh@mellanox.com>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
iwlwifi
* fix to prevent firmware crash when sending off-channel frames
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Merge tag 'wireless-drivers-for-davem-2016-09-20' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers
Kalle Valo says:
====================
wireless-drivers fixes for 4.8
iwlwifi
* fix to prevent firmware crash when sending off-channel frames
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Configure the transmitter delay register at +0x1c to correctly handle
the CAN FD bitrate switch (BRS). This moves the SSP (secondary sample
point) to a proper offset, so that the TDC mechanism works and won't
generate error frames on the CAN link.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Marc Kleine-Budde <mkl@pengutronix.de>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Oliver Hartkopp <socketcan@hartkopp.net>
Cc: Wolfgang Grandegger <wg@grandegger.com>
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Since commit 1625f45299, vti6 is broken, all input packets are dropped
(LINUX_MIB_XFRMINNOSTATES is incremented).
XFRM_TUNNEL_SKB_CB(skb)->tunnel.ip6 is set by vti6_rcv() before calling
xfrm6_rcv()/xfrm6_rcv_spi(), thus we cannot set to NULL that value in
xfrm6_rcv_spi().
A new function xfrm6_rcv_tnl() that enables to pass a value to
xfrm6_rcv_spi() is added, so that xfrm6_rcv() is not touched (this function
is used in several handlers).
CC: Alexey Kodanev <alexey.kodanev@oracle.com>
Fixes: 1625f45299 ("net/xfrm_input: fix possible NULL deref of tunnel.ip6->parms.i_key")
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
When I introduced the lastuse member I made a subtle error because it was
returned as an absolute value but that is meaningless to user-space as it
doesn't allow to see how old exactly an entry is. Let's make it similar to
how the bridge returns such values and make it relative to "now" (jiffies).
This allows us to show the actual age of the entries and is much more
useful (e.g. user-space daemons can age out entries, iproute2 can display
the lastuse properly).
Fixes: 43b9e12740 ("net: ipmr/ip6mr: add support for keeping an entry age")
Reported-by: Satish Ashok <sashok@cumulusnetworks.com>
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Hayes Wang says:
====================
r8152: correct the flow of PHY
First, to enable the PHY as early as possible. Some settings may fail if the
PHY is power down.
Move the other PHY settings to hw_phy_cfg() to make sure the order is correct.
Finally, disable ALDPS and EEE before updating the PHY for RTL8153.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Disable ALDPS and EEE to avoid the possible failure when setting the PHY.
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Move the PHY relative settings together to hw_phy_cfg().
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Move enabling PHY to init(), otherwise some other settings may fail.
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Move the following functions forward.
r8152_mmd_indirect()
r8152_mmd_read()
r8152_mmd_write()
r8152_eee_en()
r8152b_enable_eee()
r8153_eee_en()
r8153_enable_eee()
r8152b_enable_fc()
r8153_aldps_en()
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We were missing check for 25G and 100G while checking port speed,
which lead to less number of queues getting allocated for 25G & 100G
adapters and leading to low throughput. Adding the missing check for
both NIC and vNIC driver.
Also fixes port advertisement for 25G and 100G in ethtool output.
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Merge tag 'linux-can-fixes-for-4.8-20160919' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can
Marc Kleine-Budde says:
====================
pull-request: can 2016-09-19
this is a pull request of one patch for the upcoming linux-4.8 release.
The patch by Fabio Estevam fixes the pm handling in the flexcan driver.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Switching iov_iter fault-in to multipages variants has exposed an old
bug in underlying fault_in_multipages_...(); they break if the range
passed to them wraps around. Normally access_ok() done by callers will
prevent such (and it's a guaranteed EFAULT - ERR_PTR() values fall into
such a range and they should not point to any valid objects).
However, on architectures where userland and kernel live in different
MMU contexts (e.g. s390) access_ok() is a no-op and on those a range
with a wraparound can reach fault_in_multipages_...().
Since any wraparound means EFAULT there, the fix is trivial - turn
those
while (uaddr <= end)
...
into
if (unlikely(uaddr > end))
return -EFAULT;
do
...
while (uaddr <= end);
Reported-by: Jan Stancek <jstancek@redhat.com>
Tested-by: Jan Stancek <jstancek@redhat.com>
Cc: stable@vger.kernel.org # v3.5+
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
While running a compile on arm64, I hit a memory exposure
usercopy: kernel memory exposure attempt detected from fffffc0000f3b1a8 (buffer_head) (1 bytes)
------------[ cut here ]------------
kernel BUG at mm/usercopy.c:75!
Internal error: Oops - BUG: 0 [#1] SMP
Modules linked in: ip6t_rpfilter ip6t_REJECT
nf_reject_ipv6 xt_conntrack ip_set nfnetlink ebtable_broute bridge stp
llc ebtable_nat ip6table_security ip6table_raw ip6table_nat
nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle
iptable_security iptable_raw iptable_nat nf_conntrack_ipv4
nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle
ebtable_filter ebtables ip6table_filter ip6_tables vfat fat xgene_edac
xgene_enet edac_core i2c_xgene_slimpro i2c_core at803x realtek xgene_dma
mdio_xgene gpio_dwapb gpio_xgene_sb xgene_rng mailbox_xgene_slimpro nfsd
auth_rpcgss nfs_acl lockd grace sunrpc xfs libcrc32c sdhci_of_arasan
sdhci_pltfm sdhci mmc_core xhci_plat_hcd gpio_keys
CPU: 0 PID: 19744 Comm: updatedb Tainted: G W 4.8.0-rc3-threadinfo+ #1
Hardware name: AppliedMicro X-Gene Mustang Board/X-Gene Mustang Board, BIOS 3.06.12 Aug 12 2016
task: fffffe03df944c00 task.stack: fffffe00d128c000
PC is at __check_object_size+0x70/0x3f0
LR is at __check_object_size+0x70/0x3f0
...
[<fffffc00082b4280>] __check_object_size+0x70/0x3f0
[<fffffc00082cdc30>] filldir64+0x158/0x1a0
[<fffffc0000f327e8>] __fat_readdir+0x4a0/0x558 [fat]
[<fffffc0000f328d4>] fat_readdir+0x34/0x40 [fat]
[<fffffc00082cd8f8>] iterate_dir+0x190/0x1e0
[<fffffc00082cde58>] SyS_getdents64+0x88/0x120
[<fffffc0008082c70>] el0_svc_naked+0x24/0x28
fffffc0000f3b1a8 is a module address. Modules may have compiled in
strings which could get copied to userspace. In this instance, it
looks like "." which matches with a size of 1 byte. Extend the
is_vmalloc_addr check to be is_vmalloc_or_module_addr to cover
all possible cases.
Signed-off-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
We hit hardened usercopy feature check for kernel text access by reading
kcore file:
usercopy: kernel memory exposure attempt detected from ffffffff8179a01f (<kernel text>) (4065 bytes)
kernel BUG at mm/usercopy.c:75!
Bypassing this check for kcore by adding bounce buffer for ktext data.
Reported-by: Steve Best <sbest@redhat.com>
Fixes: f5509cc18d ("mm: Hardened usercopy")
Suggested-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Next patch adds bounce buffer for ktext area, so it's
convenient to have single bounce buffer for both
vmalloc/module and ktext cases.
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit fe56b9e6a8 ("qed: Add module with basic common support")
has introduced a stack corruption during probe, where filling a
local struct with data to be sent to management firmware is incorrectly
filled; The data is written outside of the struct and corrupts
the stack.
Changes from v1:
----------------
- Correct the value written [Caught by David Laight]
Fixes: fe56b9e6a8 ("qed: Add module with basic common support")
Signed-off-by: Yuval Mintz <Yuval.Mintz@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The core distributed switch architecture code currently does not have
a MAINTAINERS entry, which results in some contributions not landing
in the right peoples inbox.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit 8c14586fc3 ("net: ipv6: Use passed in table for nexthop
lookups") introduced a regression: insertion of an IPv6 route in a table
not containing the appropriate connected route for the gateway but which
contained a non-connected route (like a default gateway) fails while it
was previously working:
$ ip link add eth0 type dummy
$ ip link set up dev eth0
$ ip addr add 2001:db8::1/64 dev eth0
$ ip route add ::/0 via 2001:db8::5 dev eth0 table 20
$ ip route add 2001:db8:cafe::1/128 via 2001:db8::6 dev eth0 table 20
RTNETLINK answers: No route to host
$ ip -6 route show table 20
default via 2001:db8::5 dev eth0 metric 1024 pref medium
After this patch, we get:
$ ip route add 2001:db8:cafe::1/128 via 2001:db8::6 dev eth0 table 20
$ ip -6 route show table 20
2001:db8:cafe::1 via 2001:db8::6 dev eth0 metric 1024 pref medium
default via 2001:db8::5 dev eth0 metric 1024 pref medium
Fixes: 8c14586fc3 ("net: ipv6: Use passed in table for nexthop lookups")
Signed-off-by: Vincent Bernat <vincent@bernat.im>
Acked-by: David Ahern <dsa@cumulusnetworks.com>
Tested-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Or Gerlitz says:
====================
mlx5 fixes to 4.8-rc6
This series series has a fix from Roi to memory corruption bug in
the bulk flow counters code and two late and hopefully last fixes
from me to the new eswitch offloads code.
Series done over net commit 37dd348 "bna: fix crash in bnad_get_strings()"
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
E-switch mode changes involve creating HW tables, potentially allocating
netdevices, etc, and things can fail. Add an attempt to rollback to the
existing mode when changing to the new mode fails. Only if rollback fails,
getting proper SRIOV functionality requires module unload or sriov
disablement/enablement.
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When enablement of the SRIOV e-switch in certain mode (switchdev or legacy)
fails, we must set the mode to none. Otherwise, we'll run into double free
based crashes when further attempting to deal with the e-switch (such
as when disabling sriov or unloading the driver).
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The FW command output length should be only the length of struct
mlx5_cmd_fc_bulk out field. Failing to do so will cause the memcpy
call which is invoked later in the driver to write over wrong memory
address and corrupt kernel memory which results in random crashes.
This bug was found using the kernel address sanitizer (kasan).
Fixes: a351a1b03b ('net/mlx5: Introduce bulk reading of flow counters')
Signed-off-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Merge fixes from Andrew Morton:
"20 fixes"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
rapidio/rio_cm: avoid GFP_KERNEL in atomic context
Revert "ocfs2: bump up o2cb network protocol version"
ocfs2: fix start offset to ocfs2_zero_range_for_truncate()
cgroup: duplicate cgroup reference when cloning sockets
mm: memcontrol: make per-cpu charge cache IRQ-safe for socket accounting
ocfs2: fix double unlock in case retry after free truncate log
fanotify: fix list corruption in fanotify_get_response()
fsnotify: add a way to stop queueing events on group shutdown
ocfs2: fix trans extend while free cached blocks
ocfs2: fix trans extend while flush truncate log
ipc/shm: fix crash if CONFIG_SHMEM is not set
mm: fix the page_swap_info() BUG_ON check
autofs: use dentry flags to block walks during expire
MAINTAINERS: update email for VLYNQ bus entry
mm: avoid endless recursion in dump_page()
mm, thp: fix leaking mapped pte in __collapse_huge_page_swapin()
khugepaged: fix use-after-free in collapse_huge_page()
MAINTAINERS: Maik has moved
ocfs2/dlm: fix race between convert and migration
mem-hotplug: don't clear the only node in new_node_page()
As reported by Alexey Khoroshilov (https://lkml.org/lkml/2016/9/9/737):
riocm_send_close() is called from rio_cm_shutdown() under
spin_lock_bh(idr_lock), but riocm_send_close() uses a GFP_KERNEL
allocation.
Fix by taking riocm_send_close() outside of spinlock protected code.
[akpm@linux-foundation.org: remove unneeded `if (!list_empty())']
Link: http://lkml.kernel.org/r/20160915175402.10122-1-alexandre.bounine@idt.com
Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com>
Reported-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This reverts commit 38b52efd21 ("ocfs2: bump up o2cb network protocol
version").
This commit made rolling upgrade fail. When one node is upgraded to new
version with this commit, the remaining nodes will fail to establish
connections to it, then the application like VMs on the remaining nodes
can't be live migrated to the upgraded one. This will cause an outage.
Since negotiate hb timeout behavior didn't change without this commit,
so revert it.
Fixes: 38b52efd21 ("ocfs2: bump up o2cb network protocol version")
Link: http://lkml.kernel.org/r/1471396924-10375-1-git-send-email-junxiao.bi@oracle.com
Signed-off-by: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Mark Fasheh <mfasheh@suse.de>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Joseph Qi <joseph.qi@huawei.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
If we punch a hole on a reflink such that following conditions are met:
1. start offset is on a cluster boundary
2. end offset is not on a cluster boundary
3. (end offset is somewhere in another extent) or
(hole range > MAX_CONTIG_BYTES(1MB)),
we dont COW the first cluster starting at the start offset. But in this
case, we were wrongly passing this cluster to
ocfs2_zero_range_for_truncate() to zero out. This will modify the
cluster in place and zero it in the source too.
Fix this by skipping this cluster in such a scenario.
To reproduce:
1. Create a random file of say 10 MB
xfs_io -c 'pwrite -b 4k 0 10M' -f 10MBfile
2. Reflink it
reflink -f 10MBfile reflnktest
3. Punch a hole at starting at cluster boundary with range greater that
1MB. You can also use a range that will put the end offset in another
extent.
fallocate -p -o 0 -l 1048615 reflnktest
4. sync
5. Check the first cluster in the source file. (It will be zeroed out).
dd if=10MBfile iflag=direct bs=<cluster size> count=1 | hexdump -C
Link: http://lkml.kernel.org/r/1470957147-14185-1-git-send-email-ashish.samant@oracle.com
Signed-off-by: Ashish Samant <ashish.samant@oracle.com>
Reported-by: Saar Maoz <saar.maoz@oracle.com>
Reviewed-by: Srinivas Eeda <srinivas.eeda@oracle.com>
Cc: Mark Fasheh <mfasheh@suse.de>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Joseph Qi <joseph.qi@huawei.com>
Cc: Eric Ren <zren@suse.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
When a socket is cloned, the associated sock_cgroup_data is duplicated
but not its reference on the cgroup. As a result, the cgroup reference
count will underflow when both sockets are destroyed later on.
Fixes: bd1060a1d6 ("sock, cgroup: add sock->sk_cgroup")
Link: http://lkml.kernel.org/r/20160914194846.11153-2-hannes@cmpxchg.org
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Vladimir Davydov <vdavydov@virtuozzo.com>
Cc: <stable@vger.kernel.org> [4.5+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
