Marc reported that he was not getting the PHY library adjust_link()
callback function to run when calling phy_stop() + phy_disconnect()
which does not indeed happen because we set the state machine to
PHY_HALTED but we don't get to run it to process this state past that
point.
Fix this with a synchronous call to phy_state_machine() in order to have
the state machine actually act on PHY_HALTED, set the PHY device's link
down, turn the network device's carrier off and finally call the
adjust_link() function.
Reported-by: Marc Gonzalez <marc_gonzalez@sigmadesigns.com>
Fixes: a390d1f379 ("phylib: convert state_queue work to delayed_work")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Marc Gonzalez <marc_gonzalez@sigmadesigns.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Update the values to match those from the STP2002QFP documentation.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull cgroup fixes from Tejun Heo:
"Several cgroup bug fixes.
- cgroup core was calling a migration callback on empty migrations,
which could make cpuset crash.
- There was a very subtle bug where the controller interface files
aren't created directly when cgroup2 is mounted. Because later
operations create them, this bug didn't get noticed earlier.
- Failed writes to cgroup.subtree_control were incorrectly returning
zero"
* 'for-4.13-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cgroup: fix error return value from cgroup_subtree_control()
cgroup: create dfl_root files on subsys registration
cgroup: don't call migration methods if there are no tasks to migrate
Pull workqueue fixes from Tejun Heo:
"Two notable fixes.
- While adding NUMA affinity support to unbound workqueues, the
assumption that an unbound workqueue with max_active == 1 is
ordered was broken.
The plan was to use explicit alloc_ordered_workqueue() for those
cases. Unfortunately, I forgot to update the documentation properly
and we grew a handful of use cases which depend on that assumption.
While we want to convert them to alloc_ordered_workqueue(), we
don't really lose anything by enforcing ordered execution on
unbound max_active == 1 workqueues and it doesn't make sense to
risk subtle bugs. Restore the assumption.
- Workqueue assumes that CPU <-> NUMA node mapping remains static.
This is a general assumption - we don't have any synchronization
mechanism around CPU <-> node mapping. Unfortunately, powerpc may
change the mapping dynamically leading to crashes. Michael added a
workaround so that we at least don't crash while powerpc hotplug
code gets updated"
* 'for-4.13-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
workqueue: Work around edge cases for calc of pool's cpumask
workqueue: implicit ordered attribute should be overridable
workqueue: restore WQ_UNBOUND/max_active==1 to be ordered
Pull libata fixes from Tejun Heo:
"Dan found a really old bug where libata hotplug code wasn't sanitizing
index value from userland and may end up indexing with a negative
number. It is scary but fortunately can only be triggered by root.
Other than that, minor fixes"
* 'for-4.13-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
libata: fix a couple of doc build warnings
libata: array underflow in ata_find_dev()
ata: sata_rcar: add gen[23] fallback compatibility strings
libata: remove unused rc in ata_eh_handle_port_resume
libata: Cleanup ata_read_log_page()
ata: fix gemini Kconfig dependencies
This patch fixes values of the EPLL K coefficient and changes
the EPLL output frequency values to match exactly what is
possible to achieve with given M, P, S, K coefficients.
This allows to avoid rounding errors and unexpected frequency
being set with clk_set_rate(), due to recalc_rate returning
different values than the PLL rate specified in the
exynos5420_epll_24mhz_tbl table. E.g. this prevents a case
where two consecutive clk_set_rate() calls with same argument
result in different PLL output frequency.
The PLL output frequencies have been calculated with formula:
f = fxtal * (M * 2^16 + K) / (P * 2^S) / 2^16
where fxtal = 24000000.
Fixes: 9842452acd ("clk: samsung: exynos542x: Add EPLL rate table")
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
While working on enabling queued rwlock on SPARC, found this following
code in include/asm-generic/qrwlock.h which uses CONFIG_CPU_BIG_ENDIAN
to clear a byte.
static inline u8 *__qrwlock_write_byte(struct qrwlock *lock)
{
return (u8 *)lock + 3 * IS_BUILTIN(CONFIG_CPU_BIG_ENDIAN);
}
Problem is many of the fixed big endian architectures don't define
CPU_BIG_ENDIAN and clears the wrong byte.
Define CPU_BIG_ENDIAN for parisc architecture to fix it.
Signed-off-by: Babu Moger <babu.moger@oracle.com>
Signed-off-by: Helge Deller <deller@gmx.de>
The kerneldoc comments for a couple of functions in drivers/ata/libata-eh.c
had fallen behind the current implementation, resulting in these doc build
warnings:
./drivers/ata/libata-eh.c:1449: warning: No description found for parameter 'link'
./drivers/ata/libata-eh.c:1449: warning: Excess function parameter 'ap' description in 'ata_eh_done'
./drivers/ata/libata-eh.c:1590: warning: No description found for parameter 'qc'
./drivers/ata/libata-eh.c:1590: warning: Excess function parameter 'dev' description in 'ata_eh_request_sense'
Update the comments and make the warnings go away.
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Tejun Heo <tj@kernel.org>
The value argument of lp87565_gpio_direction_output() means output level
rather than gpio direction.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-by: Keerthy <j-keerthy@ti.com>
Tested-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
On one of my test machines nhi_mailbox_cmd() called from icm_suspend()
times out and returnes an error which then is propagated to the
caller and causes the entire system suspend to be aborted which isn't
very useful.
Instead of aborting system suspend, print the error into the log
and continue.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Michael Jamet <michael.jamet@intel.com>
The watchdog soft-NMI exception stack setup loads a stack pointer
twice, which is an obvious error. It ends up using the system reset
interrupt (true-NMI) stack, which is also a bug because the watchdog
could be preempted by a system reset interrupt that overwrites the
NMI stack.
Change the soft-NMI to use the "emergency stack". The current kernel
stack is not used, because of the longer-term goal to prevent
asynchronous stack access using soft-disable.
Fixes: 2104180a53 ("powerpc/64s: implement arch-specific hardlockup watchdog")
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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Merge tag 'v4.13-rc1' into fixes
The fixes branch is based off a random pre-rc1 commit, because we had
some fixes that needed to go in before rc1 was released.
However we now need to fix some code that went in after that point, but
before rc1, so merge rc1 to get that code into fixes so we can fix it!
Since kernel 4.11 the thread and irq stacks on parisc randomly overflow
the default size of 16k. The reason why stack usage suddenly grew is yet
unknown.
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org # 4.11+
Signed-off-by: Helge Deller <deller@gmx.de>
In testing James' patch to drivers/parisc/pdc_stable.c, I hit the BUG
statement in flush_cache_range() during a system shutdown:
kernel BUG at arch/parisc/kernel/cache.c:595!
CPU: 2 PID: 6532 Comm: kworker/2:0 Not tainted 4.13.0-rc2+ #1
Workqueue: events free_ioctx
IAOQ[0]: flush_cache_range+0x144/0x148
IAOQ[1]: flush_cache_page+0x0/0x1a8
RP(r2): flush_cache_range+0xec/0x148
Backtrace:
[<00000000402910ac>] unmap_page_range+0x84/0x880
[<00000000402918f4>] unmap_single_vma+0x4c/0x60
[<0000000040291a18>] zap_page_range_single+0x110/0x160
[<0000000040291c34>] unmap_mapping_range+0x174/0x1a8
[<000000004026ccd8>] truncate_pagecache+0x50/0xa8
[<000000004026cd84>] truncate_setsize+0x54/0x70
[<000000004033d534>] put_aio_ring_file+0x44/0xb0
[<000000004033d5d8>] aio_free_ring+0x38/0x140
[<000000004033d714>] free_ioctx+0x34/0xa8
[<00000000401b0028>] process_one_work+0x1b8/0x4d0
[<00000000401b04f4>] worker_thread+0x1b4/0x648
[<00000000401b9128>] kthread+0x1b0/0x208
[<0000000040150020>] end_fault_vector+0x20/0x28
[<0000000040639518>] nf_ip_reroute+0x50/0xa8
[<0000000040638ed0>] nf_ip_route+0x10/0x78
[<0000000040638c90>] xfrm4_mode_tunnel_input+0x180/0x1f8
CPU: 2 PID: 6532 Comm: kworker/2:0 Not tainted 4.13.0-rc2+ #1
Workqueue: events free_ioctx
Backtrace:
[<0000000040163bf0>] show_stack+0x20/0x38
[<0000000040688480>] dump_stack+0xa8/0x120
[<0000000040163dc4>] die_if_kernel+0x19c/0x2b0
[<0000000040164d0c>] handle_interruption+0xa24/0xa48
This patch modifies flush_cache_range() to handle non current contexts.
In as much as this occurs infrequently, the simplest approach is to
flush the entire cache when this happens.
Signed-off-by: John David Anglin <dave.anglin@bell.net>
Cc: stable@vger.kernel.org # 4.9+
Signed-off-by: Helge Deller <deller@gmx.de>
For some odd reason, it forces a byte-by-byte copy of each field. A
plain old swap() on most of these fields would be more efficient. We
do need to retain the memswap of i_data however as that field is an array.
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Reviewed-by: Jan Kara <jack@suse.cz>
For Lustre, if ea_inode fails in hash validation but passes parent
inode and generation checks, it won't be added to the cache as well
as the error "-EFSCORRUPTED" should be cleared, otherwise it will
cause "Structure needs cleaning" when running getfattr command.
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-9723
Cc: stable@vger.kernel.org
Fixes: dec214d00e
Signed-off-by: Emoly Liu <emoly.liu@intel.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Andreas Dilger <adilger@dilger.ca>
Reviewed-by: tahsin@google.com
When new directory 'DIR1' is created in a directory 'DIR0' with SGID bit
set, DIR1 is expected to have SGID bit set (and owning group equal to
the owning group of 'DIR0'). However when 'DIR0' also has some default
ACLs that 'DIR1' inherits, setting these ACLs will result in SGID bit on
'DIR1' to get cleared if user is not member of the owning group.
Fix the problem by moving posix_acl_update_mode() out of
__ext4_set_acl() into ext4_set_acl(). That way the function will not be
called when inheriting ACLs which is what we want as it prevents SGID
bit clearing and the mode has been properly set by posix_acl_create()
anyway.
Fixes: 073931017b
CC: stable@vger.kernel.org
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Jan Kara <jack@suse.cz>
Reviewed-by: Andreas Gruenbacher <agruenba@redhat.com>
When changing a file's acl mask, __ext4_set_acl() will first set the group
bits of i_mode to the value of the mask, and only then set the actual
extended attribute representing the new acl.
If the second part fails (due to lack of space, for example) and the file
had no acl attribute to begin with, the system will from now on assume
that the mask permission bits are actual group permission bits, potentially
granting access to the wrong users.
Prevent this by only changing the inode mode after the acl has been set.
Signed-off-by: Ernesto A. Fernández <ernesto.mnd.fernandez@gmail.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Jan Kara <jack@suse.cz>
Two variables in ext4_inode_info, i_reserved_meta_blocks and
i_allocated_meta_blocks, are unused. Removing them saves a little
memory per in-memory inode and cleans up clutter in several tracepoints.
Adjust tracepoint output from ext4_alloc_da_blocks() for consistency
and fix a typo and whitespace near these changes.
Signed-off-by: Eric Whitney <enwlinux@gmail.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Jan Kara <jack@suse.cz>
Commit 914f82a32d "ext4: refactor direct IO code" deleted
ext4_ext_direct_IO(), but references to that function remain in
comments. Update them to refer to ext4_direct_IO_write().
Signed-off-by: Eric Whitney <enwlinux@gmail.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Andreas Dilger <adilger@dilger.ca>
Reviewed-by: Jan Kara <jack@suse.cz>
Pull x86 fixes from Thomas Gleixner:
"A small set of x86 fixes:
- prevent the kernel from using the EFI reboot method when EFI is
disabled.
- two patches addressing clang issues"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/boot: Disable the address-of-packed-member compiler warning
x86/efi: Fix reboot_mode when EFI runtime services are disabled
x86/boot: #undef memcpy() et al in string.c
Pull scheduler fixes from Thomas Gleixner:
"Two patches addressing build warnings caused by inconsistent kernel
doc comments"
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/wait: Clean up some documentation warnings
sched/core: Fix some documentation build warnings
Pull perf fixes from Thomas Gleixner:
"A couple of fixes for performance counters and kprobes:
- a series of small patches which make the uncore performance
counters on Skylake server systems work correctly
- add a missing instruction slot release to the failure path of
kprobes"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
kprobes/x86: Release insn_slot in failure path
perf/x86/intel/uncore: Fix missing marker for skx_uncore_cha_extra_regs
perf/x86/intel/uncore: Fix SKX CHA event extra regs
perf/x86/intel/uncore: Remove invalid Skylake server CHA filter field
perf/x86/intel/uncore: Fix Skylake server CHA LLC_LOOKUP event umask
perf/x86/intel/uncore: Fix Skylake server PCU PMU event format
perf/x86/intel/uncore: Fix Skylake UPI PMU event masks
Pull irq fix from Thomas Gleixner:
"Fix for a regression caused by the conversion of x86 to the generic
hotplug code.
Instead of doing a plain single line revert, this adds a pile of
comments so the semantics of the force argument are clear"
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
genirq/cpuhotplug: Revert "Set force affinity flag on hotplug migration"
ACPI HID for Hisilicon Hip07/08 should be HISI02A1/2,
not HISI0A21/2, HISI02A1/2 was tested ok but was modified
by the stupid typo when upstream the patches (by me),
correct them to the right IDs (matching the IDs in
drivers/i2c/busses/i2c-designware-platdrv.c).
Fixes: 6e14cf361a (ACPI / APD: Add clock frequency for Hisilicon Hip07/08 I2C controller)
Reported-by: Tao Tian <tiantao6@huawei.com>
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
After commit f8475cef90 "x86: use common aperfmperf_khz_on_cpu() to
calculate KHz using APERF/MPERF" the scaling_cur_freq policy attribute
in sysfs only behaves as expected on x86 with APERF/MPERF registers
available when it is read from at least twice in a row. The value
returned by the first read may not be meaningful, because the
computations in there use cached values from the previous iteration
of aperfmperf_snapshot_khz() which may be stale.
To prevent that from happening, modify arch_freq_get_on_cpu() to
call aperfmperf_snapshot_khz() twice, with a short delay between
these calls, if the previous invocation of aperfmperf_snapshot_khz()
was too far back in the past (specifically, more that 1s ago).
Also, as pointed out by Doug Smythies, aperf_delta is limited now
and the multiplication of it by cpu_khz won't overflow, so simplify
the s->khz computations too.
Fixes: f8475cef90 "x86: use common aperfmperf_khz_on_cpu() to calculate KHz using APERF/MPERF"
Reported-by: Doug Smythies <dsmythies@telus.net>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
bpf_prog_size(prog->len) is not the correct length we want to dump
back to user space. The code in bpf_prog_get_info_by_fd() uses this
to copy prog->insnsi to user space, but bpf_prog_size(prog->len) also
includes the size of struct bpf_prog itself plus program instructions
and is usually used either in context of accounting or for bpf_prog_alloc()
et al, thus we copy out of bounds in bpf_prog_get_info_by_fd()
potentially. Use the correct bpf_prog_insn_size() instead.
Fixes: 1e27097690 ("bpf: Add BPF_OBJ_GET_INFO_BY_FD")
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When using CONFIG_UBSAN_SANITIZE_ALL, the TCP code produces a
false-positive warning:
net/ipv4/tcp_output.c: In function 'tcp_connect':
net/ipv4/tcp_output.c:2207:40: error: array subscript is below array bounds [-Werror=array-bounds]
tp->chrono_stat[tp->chrono_type - 1] += now - tp->chrono_start;
^~
net/ipv4/tcp_output.c:2207:40: error: array subscript is below array bounds [-Werror=array-bounds]
tp->chrono_stat[tp->chrono_type - 1] += now - tp->chrono_start;
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
I have opened a gcc bug for this, but distros have already shipped
compilers with this problem, and it's not clear yet whether there is
a way for gcc to avoid the warning. As the problem is related to the
bitfield access, this introduces a temporary variable to store the old
enum value.
I did not notice this warning earlier, since UBSAN is disabled when
building with COMPILE_TEST, and that was always turned on in both
allmodconfig and randconfig tests.
Link: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81601
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Two fixes for for brcmfmac, the crash was reported by two people
already so it's a high priority fix.
brcmfmac
* fix a crash in skb headroom handling in v4.13-rc1
* fix a memory leak due to a merge error in v4.6
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Merge tag 'wireless-drivers-for-davem-2017-07-28' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers
Kalle Valo says:
====================
wireless-drivers fixes for 4.13
Two fixes for for brcmfmac, the crash was reported by two people
already so it's a high priority fix.
brcmfmac
* fix a crash in skb headroom handling in v4.13-rc1
* fix a memory leak due to a merge error in v4.6
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Trivial fix to spelling mistake in printk message
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
err in bpf_prog_get_info_by_fd() still holds 0 at that time from prior
check_uarg_tail_zero() check. Explicitly return -EFAULT instead, so
user space can be notified of buggy behavior.
Fixes: 1e27097690 ("bpf: Add BPF_OBJ_GET_INFO_BY_FD")
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When an early demuxed packet reaches __udp6_lib_lookup_skb(), the
sk reference is retrieved and used, but the relevant reference
count is leaked and the socket destructor is never called.
Beyond leaking the sk memory, if there are pending UDP packets
in the receive queue, even the related accounted memory is leaked.
In the long run, this will cause persistent forward allocation errors
and no UDP skbs (both ipv4 and ipv6) will be able to reach the
user-space.
Fix this by explicitly accessing the early demux reference before
the lookup, and properly decreasing the socket reference count
after usage.
Also drop the skb_steal_sock() in __udp6_lib_lookup_skb(), and
the now obsoleted comment about "socket cache".
The newly added code is derived from the current ipv4 code for the
similar path.
v1 -> v2:
fixed the __udp6_lib_rcv() return code for resubmission,
as suggested by Eric
Reported-by: Sam Edwards <CFSworks@gmail.com>
Reported-by: Marc Haber <mh+netdev@zugschlus.de>
Fixes: 5425077d73 ("net: ipv6: Add early demux handler for UDP unicast")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
For SGMII/RGMII/QSGMII interfaces when physical link goes down
while traffic is high is resulting in underflow condition being set
on that specific BGX's LMAC. Which assets a backpresure and VNIC stops
transmitting packets.
This is due to BGX being disabled in link status change callback while
packet is in transit. This patch fixes this issue by not disabling BGX
but instead just disables packet Rx and Tx.
Signed-off-by: Sunil Goutham <sgoutham@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This reverts commit 809ecb9bca. Since it
was reported to break vhost_net. We want to cache used event and use
it to check for notification. The assumption was that guest won't move
the event idx back, but this could happen in fact when 16 bit index
wraps around after 64K entries.
Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Merge tag 'mlx5-fixes-2017-07-27-V2' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux
Saeed Mahameed says:
====================
Mellanox, mlx5 fixes 2017-07-27
This series contains some misc fixes to the mlx5 driver.
Please pull and let me know if there's any problem.
V1->V2:
- removed redundant braces
for -stable:
4.7
net/mlx5: Fix command bad flow on command entry allocation failure
4.9
net/mlx5: Consider tx_enabled in all modes on remap
net/mlx5e: Fix outer_header_zero() check size
4.10
net/mlx5: Fix mlx5_add_flow_rules call with correct num of dests
4.11
net/mlx5: Fix mlx5_ifc_mtpps_reg_bits structure size
net/mlx5e: Add field select to MTPPS register
net/mlx5e: Fix broken disable 1PPS flow
net/mlx5e: Change 1PPS out scheme
net/mlx5e: Add missing support for PTP_CLK_REQ_PPS request
net/mlx5e: Fix wrong delay calculation for overflow check scheduling
net/mlx5e: Schedule overflow check work to mlx5e workqueue
4.12
net/mlx5: Fix command completion after timeout access invalid structure
net/mlx5e: IPoIB, Modify add/remove underlay QPN flows
I hope this is not too much, but most of the patches do apply cleanly on -stable.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
IPv6 tunnels use sizeof(struct in6_addr) as dev->addr_len,
but in many places especially bonding, we use struct sockaddr
to copy and set mac addr, this could lead to stack out-of-bounds
access.
Fix it by using a larger address storage like bonding.
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Cc: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Historically, dev_ifsioc() uses struct sockaddr as mac
address definition, this is why dev_set_mac_address()
accepts a struct sockaddr pointer as input but now we
have various types of mac addresse whose lengths
are up to MAX_ADDR_LEN, longer than struct sockaddr,
and saved in dev->addr_len.
It is too late to fix dev_ifsioc() due to API
compatibility, so just reject those larger than
sizeof(struct sockaddr), otherwise we would read
and use some random bytes from kernel stack.
Fortunately, only a few IPv6 tunnel devices have addr_len
larger than sizeof(struct sockaddr) and they don't support
ndo_set_mac_addr(). But with team driver, in lb mode, they
can still be enslaved to a team master and make its mac addr
length as the same.
Cc: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Simon Horman reported that Koelsch and Lager hang during boot, and
bisected this to commit 1c3c5eab17 ("sched/core: Enable
might_sleep() and smp_processor_id() checks early").
The da9063/da9210 regulator quirk for R-Car Gen2 boards uses a bus
notifier, and unregisters the notifier when it is no longer needed.
However, a notifier must not be unregistered from within the call chain.
This bug went unnoticed, as blocking_notifier_chain_unregister() didn't
take the semaphore during early boot. The aforementioned commit changed
that behavior, leading to a deadlock.
Fix this by removing the call to bus_unregister_notifier(), and keeping
local completion state instead.
Reported-by: Simon Horman <horms+renesas@verge.net.au>
Fixes: 663fbb5215 ("ARM: shmobile: R-Car Gen2: Add da9063/da9210 regulator quirk")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
- Fix error handling in of_irq_to_resource_table() due to
of_irq_to_resource() error return changes.
- Fix dtx_diff script due to dts include path changes.
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Merge tag 'devicetree-fixes-for-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull DeviceTree fixes from Rob Herring:
"Two small DT fixes:
- Fix error handling in of_irq_to_resource_table() due to
of_irq_to_resource() error return changes.
- Fix dtx_diff script due to dts include path changes"
* tag 'devicetree-fixes-for-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
of: irq: fix of_irq_to_resource() error check
scripts/dtc: dtx_diff - update include dts paths to match build
Stable fixes:
- Fix a race where CB_NOTIFY_LOCK fails to wake a waiter
- Invalidate file size when taking a lock to prevent corruption
Other fixes:
- Don't excessively generate tiny writes with fallocate
- Use the raw NFS access mask in nfs4_opendata_access()
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Merge tag 'nfs-for-4.13-3' of git://git.linux-nfs.org/projects/anna/linux-nfs
Pull NFS client fixes from Anna Schumaker:
"More NFS client bugfixes for 4.13.
Most of these fix locking bugs that Ben and Neil noticed, but I also
have a patch to fix one more access bug that was reported after last
week.
Stable fixes:
- Fix a race where CB_NOTIFY_LOCK fails to wake a waiter
- Invalidate file size when taking a lock to prevent corruption
Other fixes:
- Don't excessively generate tiny writes with fallocate
- Use the raw NFS access mask in nfs4_opendata_access()"
* tag 'nfs-for-4.13-3' of git://git.linux-nfs.org/projects/anna/linux-nfs:
NFSv4.1: Fix a race where CB_NOTIFY_LOCK fails to wake a waiter
NFS: Optimize fallocate by refreshing mapping when needed.
NFS: invalidate file size when taking a lock.
NFS: Use raw NFS access mask in nfs4_opendata_access()
- Fix firstfsb variables that we left uninitialized, which could lead to
locking problems.
- Check for NULL metadata buffer pointers before using them.
- Don't allow btree cursor manipulation if the btree block is corrupt.
Better to just shut down.
- Fix infinite loop problems in quotacheck.
- Fix buffer overrun when validating directory blocks.
- Fix deadlock problem in bunmapi.
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Merge tag 'xfs-4.13-fixes-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs fixes from Darrick Wong:
- fix firstfsb variables that we left uninitialized, which could lead
to locking problems.
- check for NULL metadata buffer pointers before using them.
- don't allow btree cursor manipulation if the btree block is corrupt.
Better to just shut down.
- fix infinite loop problems in quotacheck.
- fix buffer overrun when validating directory blocks.
- fix deadlock problem in bunmapi.
* tag 'xfs-4.13-fixes-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: fix multi-AG deadlock in xfs_bunmapi
xfs: check that dir block entries don't off the end of the buffer
xfs: fix quotacheck dquot id overflow infinite loop
xfs: check _alloc_read_agf buffer pointer before using
xfs: set firstfsb to NULLFSBLOCK before feeding it to _bmapi_write
xfs: check _btree_check_block value
PPC: host crash fixes.
x86: bugfixes, including making nested posted interrupts really work.
Generic: tweaks to kvm_stat and to uevents
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM fixes from Paolo Bonzini:
"s390:
- SRCU fix
PPC:
- host crash fixes
x86:
- bugfixes, including making nested posted interrupts really work
Generic:
- tweaks to kvm_stat and to uevents"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: LAPIC: Fix reentrancy issues with preempt notifiers
tools/kvm_stat: add '-f help' to get the available event list
tools/kvm_stat: use variables instead of hard paths in help output
KVM: nVMX: Fix loss of L2's NMI blocking state
KVM: nVMX: Fix posted intr delivery when vcpu is in guest mode
x86: irq: Define a global vector for nested posted interrupts
KVM: x86: do mask out upper bits of PAE CR3
KVM: make pid available for uevents without debugfs
KVM: s390: take srcu lock when getting/setting storage keys
KVM: VMX: remove unused field
KVM: PPC: Book3S HV: Fix host crash on changing HPT size
KVM: PPC: Book3S HV: Enable TM before accessing TM registers
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Merge tag 'for-linus-4.13b-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen fixes from Juergen Gross:
"Three minor cleanups for xen related drivers"
* tag 'for-linus-4.13b-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen: dont fiddle with event channel masking in suspend/resume
xen: selfballoon: remove unnecessary static in frontswap_selfshrink()
xen: Drop un-informative message during boot
- Ensure we have a guard page after the kernel image in vmalloc
- Fix incorrect prefetch stride in copy_page
- Ensure irqs are disabled in die()
- Fix for event group validation in QCOM L2 PMU driver
- Fix requesting of PMU IRQs on AMD Seattle
- Minor cleanups and fixes
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
"I'd been collecting these whilst we debugged a CPU hotplug failure,
but we ended up diagnosing that one to tglx, who has taken a fix via
the -tip tree separately.
We're seeing some NFS issues that we haven't gotten to the bottom of
yet, and we've uncovered some issues with our backtracing too so there
might be another fixes pull before we're done.
Summary:
- Ensure we have a guard page after the kernel image in vmalloc
- Fix incorrect prefetch stride in copy_page
- Ensure irqs are disabled in die()
- Fix for event group validation in QCOM L2 PMU driver
- Fix requesting of PMU IRQs on AMD Seattle
- Minor cleanups and fixes"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: mmu: Place guard page after mapping of kernel image
drivers/perf: arm_pmu: Request PMU SPIs with IRQF_PER_CPU
arm64: sysreg: Fix unprotected macro argmuent in write_sysreg
perf: qcom_l2: fix column exclusion check
arm64/lib: copy_page: use consistent prefetch stride
arm64/numa: Drop duplicate message
perf: Convert to using %pOF instead of full_name
arm64: Convert to using %pOF instead of full_name
arm64: traps: disable irq in die()
arm64: atomics: Remove '&' from '+&' asm constraint in lse atomics
arm64: uaccess: Remove redundant __force from addr cast in __range_ok
The highlight is Ben's patch to work around a host killing bug when running KVM
guests with the Radix MMU on Power9. See the long change log of that commit for
more detail.
And then three fairly minor fixes:
- Fix of_node_put() underflow during reconfig remove, using old DLPAR tools.
- Fix recently introduced ld version check with 64-bit LE-only toolchain.
- Free the subpage_prot_table correctly, avoiding a memory leak.
Thanks to:
Aneesh Kumar K.V, Benjamin Herrenschmidt, Laurent Vivier.
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Merge tag 'powerpc-4.13-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"The highlight is Ben's patch to work around a host killing bug when
running KVM guests with the Radix MMU on Power9. See the long change
log of that commit for more detail.
And then three fairly minor fixes:
- fix of_node_put() underflow during reconfig remove, using old DLPAR
tools.
- fix recently introduced ld version check with 64-bit LE-only
toolchain.
- free the subpage_prot_table correctly, avoiding a memory leak.
Thanks to: Aneesh Kumar K.V, Benjamin Herrenschmidt, Laurent Vivier"
* tag 'powerpc-4.13-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/mm/hash: Free the subpage_prot_table correctly
powerpc/Makefile: Fix ld version check with 64-bit LE-only toolchain
powerpc/pseries: Fix of_node_put() underflow during reconfig remove
powerpc/mm/radix: Workaround prefetch issue with KVM
nfs4_retry_setlk() sets the task's state to TASK_INTERRUPTIBLE within the
same region protected by the wait_queue's lock after checking for a
notification from CB_NOTIFY_LOCK callback. However, after releasing that
lock, a wakeup for that task may race in before the call to
freezable_schedule_timeout_interruptible() and set TASK_WAKING, then
freezable_schedule_timeout_interruptible() will set the state back to
TASK_INTERRUPTIBLE before the task will sleep. The result is that the task
will sleep for the entire duration of the timeout.
Since we've already set TASK_INTERRUPTIBLE in the locked section, just use
freezable_schedule_timout() instead.
Fixes: a1d617d8f1 ("nfs: allow blocking locks to be awoken by lock callbacks")
Signed-off-by: Benjamin Coddington <bcodding@redhat.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Cc: stable@vger.kernel.org # v4.9+
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
