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syzbot found its way in 86_fsgsbase_read_task() and triggered this oops:
KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
CPU: 0 PID: 6866 Comm: syz-executor262 Not tainted 5.8.0-syzkaller #0
RIP: 0010:x86_fsgsbase_read_task+0x16d/0x310 arch/x86/kernel/process_64.c:393
Call Trace:
putreg32+0x3ab/0x530 arch/x86/kernel/ptrace.c:876
genregs32_set arch/x86/kernel/ptrace.c:1026 [inline]
genregs32_set+0xa4/0x100 arch/x86/kernel/ptrace.c:1006
copy_regset_from_user include/linux/regset.h:326 [inline]
ia32_arch_ptrace arch/x86/kernel/ptrace.c:1061 [inline]
compat_arch_ptrace+0x36c/0xd90 arch/x86/kernel/ptrace.c:1198
__do_compat_sys_ptrace kernel/ptrace.c:1420 [inline]
__se_compat_sys_ptrace kernel/ptrace.c:1389 [inline]
__ia32_compat_sys_ptrace+0x220/0x2f0 kernel/ptrace.c:1389
do_syscall_32_irqs_on arch/x86/entry/common.c:84 [inline]
__do_fast_syscall_32+0x57/0x80 arch/x86/entry/common.c:126
do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:149
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
This can happen if ptrace() or sigreturn() pokes an LDT selector into FS
or GS for a task with no LDT and something tries to read the base before
a return to usermode notices the bad selector and fixes it.
The fix is to make sure ldt pointer is not NULL.
Fixes: 07e1d88adaae ("x86/fsgsbase/64: Fix ptrace() to read the FS/GS base accurately")
Co-developed-by: Jann Horn <[email protected]>
Signed-off-by: Eric Dumazet <[email protected]>
Reported-by: syzbot <[email protected]>
Acked-by: Andy Lutomirski <[email protected]>
Cc: Chang S. Bae <[email protected]>
Cc: Andy Lutomirski <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Brian Gerst <[email protected]>
Cc: Dave Hansen <[email protected]>
Cc: Denys Vlasenko <[email protected]>
Cc: H. Peter Anvin <[email protected]>
Cc: Markus T Metzger <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Ravi Shankar <[email protected]>
Cc: Rik van Riel <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Ingo Molnar <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fix from Herbert Xu:
"This fixes a regression in af_alg"
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: algif_aead - fix uninitialized ctx->init
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git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux
Pull module updates from Jessica Yu:
"The most important change would be Christoph Hellwig's patch
implementing proprietary taint inheritance, in an effort to discourage
the creation of GPL "shim" modules that interface between GPL symbols
and proprietary symbols.
Summary:
- Have modules that use symbols from proprietary modules inherit the
TAINT_PROPRIETARY_MODULE taint, in an effort to prevent GPL shim
modules that are used to circumvent _GPL exports. These are modules
that claim to be GPL licensed while also using symbols from
proprietary modules. Such modules will be rejected while non-GPL
modules will inherit the proprietary taint.
- Module export space cleanup. Unexport symbols that are unused
outside of module.c or otherwise used in only built-in code"
* tag 'modules-for-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux:
modules: inherit TAINT_PROPRIETARY_MODULE
modules: return licensing information from find_symbol
modules: rename the licence field in struct symsearch to license
modules: unexport __module_address
modules: unexport __module_text_address
modules: mark each_symbol_section static
modules: mark find_symbol static
modules: mark ref_module static
modules: linux/moduleparam.h: drop duplicated word in a comment
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git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kconfig updates from Masahiro Yamada:
- remove '---help---' keyword support
- fix mouse events for 'menuconfig' symbols in search view of qconf
- code cleanups of qconf
* tag 'kconfig-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (24 commits)
kconfig: qconf: move setOptionMode() to ConfigList from ConfigView
kconfig: qconf: do not limit the pop-up menu to the first row
kconfig: qconf: refactor icon setups
kconfig: qconf: remove unused voidPix, menuInvPix
kconfig: qconf: remove ConfigItem::text/setText
kconfig: qconf: remove ConfigList::addColumn/removeColumn
kconfig: qconf: remove ConfigItem::pixmap/setPixmap
kconfig: qconf: drop more localization code
kconfig: qconf: remove 'parent' from ConfigList::updateMenuList()
kconfig: qconf: remove unused argument from ConfigView::updateList()
kconfig: qconf: remove unused argument from ConfigList::updateList()
kconfig: qconf: omit parent to QHBoxLayout()
kconfig: qconf: remove name from ConfigSearchWindow constructor
kconfig: qconf: remove unused ConfigList::listView()
kconfig: qconf: overload addToolBar() to create and insert toolbar
kconfig: qconf: remove toolBar from ConfigMainWindow members
kconfig: qconf: use 'menu' variable for (QMenu *)
kconfig: qconf: do not use 'menu' variable for (QMenuBar *)
kconfig: qconf: remove ->addSeparator() to menuBar
kconfig: add 'static' to some file-local data
...
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* pm-cpufreq:
cpufreq: intel_pstate: Implement passive mode with HWP enabled
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ConfigView::setOptionMode() only gets access to the 'list' member.
Move it to the more relevant ConfigList class.
Signed-off-by: Masahiro Yamada <[email protected]>
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If you right-click the first row in the option tree, the pop-up menu
shows up, but if you right-click the second row or below, the event
is ignored due to the following check:
if (e->y() <= header()->geometry().bottom()) {
Perhaps, the intention was to show the pop-menu only when the tree
header was right-clicked, but this handler is not called in that case.
Since the origin of e->y() starts from the bottom of the header,
this check is odd.
Going forward, you can right-click anywhere in the tree to get the
pop-up menu.
Signed-off-by: Masahiro Yamada <[email protected]>
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These icon data are used by ConfigItem, but stored in each instance
of ConfigView. There is no point to keep the same data in each of 3
instances, "menu", "config", and "search".
Move the icon data to the more relevant ConfigItem class, and make
them static members.
Signed-off-by: Masahiro Yamada <[email protected]>
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These are initialized, but not used by anyone.
Signed-off-by: Masahiro Yamada <[email protected]>
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Use QTreeWidgetItem::text/setText directly
Signed-off-by: Masahiro Yamada <[email protected]>
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Use QTreeView::showColumn/hideColumn directly.
Signed-off-by: Masahiro Yamada <[email protected]>
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Use QTreeWidgetItem::icon/setIcon directly.
Signed-off-by: Masahiro Yamada <[email protected]>
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This is a remnant of commit 694c49a7c01c ("kconfig: drop localization
support").
Get it back to the code prior to commit 3b9fa0931dd8 ("[PATCH] Kconfig
i18n support").
Signed-off-by: Masahiro Yamada <[email protected]>
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All the call-sites of this function pass 'this' to the first argument.
So, 'parent' is always the 'this' pointer.
Signed-off-by: Masahiro Yamada <[email protected]>
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Now that ConfigList::updateList() takes no argument, the 'item' argument
ConfigView::updateList() is no longer used.
Signed-off-by: Masahiro Yamada <[email protected]>
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This function allocates 'item' before using it, so the argument 'item'
is always shadowed.
Remove the meaningless argument.
Signed-off-by: Masahiro Yamada <[email protected]>
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Instead of passing 0 (i.e. nullptr), leave it empty.
Signed-off-by: Masahiro Yamada <[email protected]>
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This constructor is only called with "search" as the second argument.
Hard-code the name in the constructor, and drop it from the function
argument.
Signed-off-by: Masahiro Yamada <[email protected]>
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I do not know how this function can be useful. In fact, it is unsed.
Signed-off-by: Masahiro Yamada <[email protected]>
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Use the overloaded function, addToolBar(const QString &title)
to create a QToolBar object, setting its window title, and inserts
it into the toolbar area.
Signed-off-by: Masahiro Yamada <[email protected]>
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This pointer is only used in the ConfigMainWindow constructor.
Drop it from the private members.
Signed-off-by: Masahiro Yamada <[email protected]>
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The variable 'config' for the file menu is inconsistent.
You do not need to use different variables. Use 'menu' for every menu.
Signed-off-by: Masahiro Yamada <[email protected]>
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I think it is a bit confusing to use 'menu' to hold a QMenuBar pointer.
I want to use 'menu' for a QMenu pointer.
You do not need to use a local variable here. Use menuBar() directly.
Signed-off-by: Masahiro Yamada <[email protected]>
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I do not understand the purpose of this ->addSeparator().
It does not make any difference.
Signed-off-by: Masahiro Yamada <[email protected]>
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Fix some warnings from sparce like follows:
warning: symbol '...' was not declared. Should it be static?
Signed-off-by: Masahiro Yamada <[email protected]>
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On menu properties mouse events didn't do anything in search view
(listMode).
As there are no menus in listMode we can add an exception in tests to
always change the value on mouse events if we are in listMode.
Signed-off-by: Maxime Chretien <[email protected]>
Signed-off-by: Masahiro Yamada <[email protected]>
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Constify arrays as well as strings.
Signed-off-by: Masahiro Yamada <[email protected]>
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This reverts commit 84af7a6194e493fae312a2b7fa5a3b51f76d9282.
The conversion is done.
Cc: Ulf Magnusson <[email protected]>
Signed-off-by: Masahiro Yamada <[email protected]>
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The conversion is done. No more user of '---help---'.
Cc: Ulf Magnusson <[email protected]>
Signed-off-by: Masahiro Yamada <[email protected]>
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Pull networking fixes from David Miller:
"Some merge window fallout, some longer term fixes:
1) Handle headroom properly in lapbether and x25_asy drivers, from
Xie He.
2) Fetch MAC address from correct r8152 device node, from Thierry
Reding.
3) In the sw kTLS path we should allow MSG_CMSG_COMPAT in sendmsg,
from Rouven Czerwinski.
4) Correct fdputs in socket layer, from Miaohe Lin.
5) Revert troublesome sockptr_t optimization, from Christoph Hellwig.
6) Fix TCP TFO key reading on big endian, from Jason Baron.
7) Missing CAP_NET_RAW check in nfc, from Qingyu Li.
8) Fix inet fastreuse optimization with tproxy sockets, from Tim
Froidcoeur.
9) Fix 64-bit divide in new SFC driver, from Edward Cree.
10) Add a tracepoint for prandom_u32 so that we can more easily
perform usage analysis. From Eric Dumazet.
11) Fix rwlock imbalance in AF_PACKET, from John Ogness"
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (49 commits)
net: openvswitch: introduce common code for flushing flows
af_packet: TPACKET_V3: fix fill status rwlock imbalance
random32: add a tracepoint for prandom_u32()
Revert "ipv4: tunnel: fix compilation on ARCH=um"
net: accept an empty mask in /sys/class/net/*/queues/rx-*/rps_cpus
net: ethernet: stmmac: Disable hardware multicast filter
net: stmmac: dwmac1000: provide multicast filter fallback
ipv4: tunnel: fix compilation on ARCH=um
vsock: fix potential null pointer dereference in vsock_poll()
sfc: fix ef100 design-param checking
net: initialize fastreuse on inet_inherit_port
net: refactor bind_bucket fastreuse into helper
net: phy: marvell10g: fix null pointer dereference
net: Fix potential memory leak in proto_register()
net: qcom/emac: add missed clk_disable_unprepare in error path of emac_clks_phase1_init
ionic_lif: Use devm_kcalloc() in ionic_qcq_alloc()
net/nfc/rawsock.c: add CAP_NET_RAW check.
hinic: fix strncpy output truncated compile warnings
drivers/net/wan/x25_asy: Added needed_headroom and a skb->len check
net/tls: Fix kmap usage
...
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c updates from Wolfram Sang:
- bus recovery can now be given a pinctrl handle and the I2C core will
do all the steps to switch to/from GPIO which can save quite some
boilerplate code from drivers
- "fallthrough" conversion
- driver updates, mostly ID additions
* 'i2c/for-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (32 commits)
i2c: iproc: fix race between client unreg and isr
i2c: eg20t: use generic power management
i2c: eg20t: Drop PCI wakeup calls from .suspend/.resume
i2c: mediatek: Fix i2c_spec_values description
i2c: mediatek: Add i2c compatible for MediaTek MT8192
dt-bindings: i2c: update bindings for MT8192 SoC
i2c: mediatek: Add access to more than 8GB dram in i2c driver
i2c: mediatek: Add apdma sync in i2c driver
i2c: i801: Add support for Intel Tiger Lake PCH-H
i2c: i801: Add support for Intel Emmitsburg PCH
i2c: bcm2835: Replace HTTP links with HTTPS ones
Documentation: i2c: dev: 'block process call' is supported
i2c: at91: Move to generic GPIO bus recovery
i2c: core: treat EPROBE_DEFER when acquiring SCL/SDA GPIOs
i2c: core: add generic I2C GPIO recovery
dt-bindings: i2c: add generic properties for GPIO bus recovery
i2c: rcar: avoid race when unregistering slave
i2c: tegra: Avoid tegra_i2c_init_dma() for Tegra210 vi i2c
i2c: tegra: Fix runtime resume to re-init VI I2C
i2c: tegra: Fix the error path in tegra_i2c_runtime_resume
...
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To avoid some issues, for example RCU usage warning and double free,
we should flush the flows under ovs_lock. This patch refactors
table_instance_destroy and introduces table_instance_flow_flush
which can be invoked by __dp_destroy or ovs_flow_tbl_flush.
Fixes: 50b0e61b32ee ("net: openvswitch: fix possible memleak on destroy flow-table")
Reported-by: Johan Knöös <[email protected]>
Reported-at: https://mail.openvswitch.org/pipermail/ovs-discuss/2020-August/050489.html
Signed-off-by: Tonghao Zhang <[email protected]>
Reviewed-by: Cong Wang <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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After @blk_fill_in_prog_lock is acquired there is an early out vnet
situation that can occur. In that case, the rwlock needs to be
released.
Also, since @blk_fill_in_prog_lock is only acquired when @tp_version
is exactly TPACKET_V3, only release it on that exact condition as
well.
And finally, add sparse annotation so that it is clearer that
prb_fill_curr_block() and prb_clear_blk_fill_status() are acquiring
and releasing @blk_fill_in_prog_lock, respectively. sparse is still
unable to understand the balance, but the warnings are now on a
higher level that make more sense.
Fixes: 632ca50f2cbd ("af_packet: TPACKET_V3: replace busy-wait loop")
Signed-off-by: John Ogness <[email protected]>
Reported-by: kernel test robot <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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There has been some heat around prandom_u32() lately, and some people
were wondering if there was a simple way to determine how often
it was used, before considering making it maybe 10 times more expensive.
This tracepoint exports the generated pseudo random value.
Tested:
perf list | grep prandom_u32
random:prandom_u32 [Tracepoint event]
perf record -a [-g] [-C1] -e random:prandom_u32 sleep 1
[ perf record: Woken up 0 times to write data ]
[ perf record: Captured and wrote 259.748 MB perf.data (924087 samples) ]
perf report --nochildren
...
97.67% ksoftirqd/1 [kernel.vmlinux] [k] prandom_u32
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---prandom_u32
prandom_u32
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|--48.86%--tcp_v4_syn_recv_sock
| tcp_check_req
| tcp_v4_rcv
| ...
--48.81%--tcp_conn_request
tcp_v4_conn_request
tcp_rcv_state_process
...
perf script
Signed-off-by: Eric Dumazet <[email protected]>
Cc: Willy Tarreau <[email protected]>
Cc: Sedat Dilek <[email protected]>
Tested-by: Sedat Dilek <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Pull documentation fixes from Jonathan Corbet:
"A handful of obvious fixes that wandered in during the merge window"
* tag 'docs-5.9-2' of git://git.lwn.net/linux:
Documentation/locking/locktypes: fix the typo
doc/zh_CN: resolve undefined label warning in admin-guide index
doc/zh_CN: fix title heading markup in admin-guide cpu-load
docs: remove the 2.6 "Upgrading I2C Drivers" guide
docs: Correct the release date of 5.2 stable
mailmap: Update comments for with format and more detalis
docs: cdrom: Fix a typo and rst markup
Doc: admin-guide: use correct legends in kernel-parameters.txt
Documentation/features: refresh RISC-V arch support files
documentation: coccinelle: Improve command example for make C={1,2}
Core-api: Documentation: Replace deprecated :c:func: Usage
Dev-tools: Documentation: Replace deprecated :c:func: Usage
Filesystems: Documentation: Replace deprecated :c:func: Usage
docs: trace: fix a typo
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We have three categories locks, not two.
Signed-off-by: Huang Shijie <[email protected]>
Acked-by: Will Deacon <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jonathan Corbet <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull more s390 updates from Heiko Carstens:
- Allow s390 debug feature to handle finally more than 256 CPU numbers,
instead of truncating the most significant bits.
- Improve THP splitting required by qemu processes by making use of
walk_page_vma() instead of calling follow_page() for every single
page within each vma.
- Add missing ZCRYPT dependency to VFIO_AP to fix potential compile
problems.
- Remove not required select CLOCKSOURCE_VALIDATE_LAST_CYCLE again.
- Set node distance to LOCAL_DISTANCE instead of 0, since e.g. libnuma
translates a node distance of 0 to "no NUMA support available".
- Couple of other minor fixes and improvements.
* tag 's390-5.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/numa: move code to arch/s390/kernel
s390/time: remove select CLOCKSOURCE_VALIDATE_LAST_CYCLE again
s390/debug: debug feature version 3
s390/Kconfig: add missing ZCRYPT dependency to VFIO_AP
s390/numa: set node distance to LOCAL_DISTANCE
s390/pkey: remove redundant variable initialization
s390/test_unwind: fix possible memleak in test_unwind()
s390/gmap: improve THP splitting
s390/atomic: circumvent gcc 10 build regression
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git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull more btrfs updates from David Sterba:
"One minor update, the rest are fixes that have arrived a bit late for
the first batch. There are also some recent fixes for bugs that were
discovered during the merge window and pop up during testing.
User visible change:
- show correct subvolume path in /proc/mounts for bind mounts
Fixes:
- fix compression messages when remounting with different level or
compression algorithm
- tree-log: fix some memory leaks on error handling paths
- restore I_VERSION on remount
- fix return values and error code mixups
- fix umount crash with quotas enabled when removing sysfs files
- fix trim range on a shrunk device"
* tag 'for-5.9-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: trim: fix underflow in trim length to prevent access beyond device boundary
btrfs: fix return value mixup in btrfs_get_extent
btrfs: sysfs: fix NULL pointer dereference at btrfs_sysfs_del_qgroups()
btrfs: check correct variable after allocation in btrfs_backref_iter_alloc
btrfs: make sure SB_I_VERSION doesn't get unset by remount
btrfs: fix memory leaks after failure to lookup checksums during inode logging
btrfs: don't show full path of bind mounts in subvol=
btrfs: fix messages after changing compression level by remount
btrfs: only search for left_info if there is no right_info in try_merge_free_space
btrfs: inode: fix NULL pointer dereference if inode doesn't need compression
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Pull xfs fixes from Darrick Wong:
"Two small fixes that have come in during the past week:
- Fix duplicated words in comments
- Fix an ubsan complaint about null pointer arithmetic"
* tag 'xfs-5.9-merge-8' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: Fix UBSAN null-ptr-deref in xfs_sysfs_init
xfs: delete duplicated words + other fixes
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git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat
Pull exfat updates from Namjae Jeon:
- don't clear MediaFailure and VolumeDirty bit in volume flags if these
were already set before mounting
- write multiple dirty buffers at once in sync mode
- remove unneeded EXFAT_SB_DIRTY bit set
* tag 'exfat-for-5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat:
exfat: retain 'VolumeFlags' properly
exfat: optimize exfat_zeroed_cluster()
exfat: add error check when updating dir-entries
exfat: write multiple sectors at once
exfat: remove EXFAT_SB_DIRTY flag
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Commit 3e38e0aaca9e ("mm: memcg: charge memcg percpu memory to the
parent cgroup") adds memory tracking to the memcg kernel structures
themselves to make cgroups liable for the memory they are consuming
through the allocation of child groups (which can be significant).
This code is a bit awkward as it's spread out through several functions:
The outermost function does memalloc_use_memcg(parent) to set up
current->active_memcg, which designates which cgroup to charge, and the
inner functions pass GFP_ACCOUNT to request charging for specific
allocations. To make sure this dependency is satisfied at all times -
to make sure we don't randomly charge whoever is calling the functions -
the inner functions warn on !current->active_memcg.
However, this triggers a false warning when the root memcg itself is
allocated. No parent exists in this case, and so current->active_memcg
is rightfully NULL. It's a false positive, not indicative of a bug.
Delete the warnings for now, we can revisit this later.
Fixes: 3e38e0aaca9e ("mm: memcg: charge memcg percpu memory to the parent cgroup")
Signed-off-by: Johannes Weiner <[email protected]>
Reported-by: Stephen Rothwell <[email protected]>
Acked-by: Roman Gushchin <[email protected]>
Cc: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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While importing a dmabuf it is possible that the data of the buffer
is put with offset which is indicated by the SGT offset.
Respect the offset value and forward it to the backend.
Signed-off-by: Oleksandr Andrushchenko <[email protected]>
Acked-by: Noralf Trønnes <[email protected]>
Signed-off-by: Juergen Gross <[email protected]>
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This is the sync up with the canonical definition of the
display protocol in Xen.
1. Add protocol version as an integer
Version string, which is in fact an integer, is hard to handle in the
code that supports different protocol versions. To simplify that
also add the version as an integer.
2. Pass buffer offset with XENDISPL_OP_DBUF_CREATE
There are cases when display data buffer is created with non-zero
offset to the data start. Handle such cases and provide that offset
while creating a display buffer.
3. Add XENDISPL_OP_GET_EDID command
Add an optional request for reading Extended Display Identification
Data (EDID) structure which allows better configuration of the
display connectors over the configuration set in XenStore.
With this change connectors may have multiple resolutions defined
with respect to detailed timing definitions and additional properties
normally provided by displays.
If this request is not supported by the backend then visible area
is defined by the relevant XenStore's "resolution" property.
If backend provides extended display identification data (EDID) with
XENDISPL_OP_GET_EDID request then EDID values must take precedence
over the resolutions defined in XenStore.
4. Bump protocol version to 2.
Signed-off-by: Oleksandr Andrushchenko <[email protected]>
Reviewed-by: Juergen Gross <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Juergen Gross <[email protected]>
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Add YUYV to supported formats, so the frontend can work with the
formats used by cameras and other HW.
Signed-off-by: Oleksandr Andrushchenko <[email protected]>
Acked-by: Noralf Trønnes <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Juergen Gross <[email protected]>
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The patch c575b7eeb89f: "drm/xen-front: Add support for Xen PV
display frontend" from Apr 3, 2018, leads to the following static
checker warning:
drivers/gpu/drm/xen/xen_drm_front_gem.c:140 xen_drm_front_gem_create()
warn: passing zero to 'ERR_CAST'
drivers/gpu/drm/xen/xen_drm_front_gem.c
133 struct drm_gem_object *xen_drm_front_gem_create(struct drm_device *dev,
134 size_t size)
135 {
136 struct xen_gem_object *xen_obj;
137
138 xen_obj = gem_create(dev, size);
139 if (IS_ERR_OR_NULL(xen_obj))
140 return ERR_CAST(xen_obj);
Fix this and the rest of misused places with IS_ERR_OR_NULL in the
driver.
Fixes: c575b7eeb89f: "drm/xen-front: Add support for Xen PV display frontend"
Signed-off-by: Oleksandr Andrushchenko <[email protected]>
Reported-by: Dan Carpenter <[email protected]>
Reviewed-by: Dan Carpenter <[email protected]>
Cc: <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Juergen Gross <[email protected]>
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It is possible that the scatter-gather table during dmabuf import has
non-zero offset of the data, but user-space doesn't expect that.
Fix this by failing the import, so user-space doesn't access wrong data.
Fixes: bf8dc55b1358 ("xen/gntdev: Implement dma-buf import functionality")
Signed-off-by: Oleksandr Andrushchenko <[email protected]>
Acked-by: Juergen Gross <[email protected]>
Cc: <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Juergen Gross <[email protected]>
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Freeing chip on error may lead to an Oops at the next time
the system goes to resume. Fix this by removing all
snd_echo_free() calls on error.
Fixes: 47b5d028fdce8 ("ALSA: Echoaudio - Add suspend support #2")
Signed-off-by: Dinghao Liu <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Takashi Iwai <[email protected]>
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In irq_set_irqchip_state(), the irq descriptor is not unlocked after an
error is encountered. While that should never happen in practice, a buggy
driver may trigger it. This would result in a lockup, so fix it.
Fixes: 1d0326f352bb ("genirq: Check irq_data_get_irq_chip() return value before use")
Signed-off-by: Guenter Roeck <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
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In skcipher_accept_parent_nokey() the whole af_alg_ctx structure is
cleared by memset() after allocation, so add such memset() also to
aead_accept_parent_nokey() so that the new "init" field is also
initialized to zero. Without that the initial ctx->init checks might
randomly return true and cause errors.
While there, also remove the redundant zero assignments in both
functions.
Found via libkcapi testsuite.
Cc: Stephan Mueller <[email protected]>
Fixes: f3c802a1f300 ("crypto: algif_aead - Only wake up when ctx->more is zero")
Suggested-by: Herbert Xu <[email protected]>
Signed-off-by: Ondrej Mosnacek <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>
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The DT node full name is currently being used in regmap_config
which in turn is used to create the regmap debugfs directories.
This name however is not guaranteed to be unique and the regmap
debugfs registration can fail in the cases where the syscon nodes
have the same unit-address but are present in different DT node
hierarchies. Replace this logic using the syscon reg resource
address instead (inspired from logic used while creating platform
devices) to ensure a unique name is given for each syscon.
Signed-off-by: Suman Anna <[email protected]>
Reviewed-by: Arnd Bergmann <[email protected]>
Signed-off-by: Lee Jones <[email protected]>
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