20 Jan, 2021
2 commits
-
Changes in 5.10.9
btrfs: reloc: fix wrong file extent type check to avoid false ENOENT
btrfs: prevent NULL pointer dereference in extent_io_tree_panic
ALSA: hda/realtek: fix right sounds and mute/micmute LEDs for HP machines
ALSA: doc: Fix reference to mixart.rst
ASoC: AMD Renoir - add DMI entry for Lenovo ThinkPad X395
ASoC: dapm: remove widget from dirty list on free
x86/hyperv: check cpu mask after interrupt has been disabled
drm/amdgpu: add green_sardine device id (v2)
drm/amdgpu: fix DRM_INFO flood if display core is not supported (bug 210921)
Revert "drm/amd/display: Fixed Intermittent blue screen on OLED panel"
drm/amdgpu: add new device id for Renior
drm/i915: Allow the sysadmin to override security mitigations
drm/i915/gt: Limit VFE threads based on GT
drm/i915/backlight: fix CPU mode backlight takeover on LPT
drm/bridge: sii902x: Refactor init code into separate function
dt-bindings: display: sii902x: Add supply bindings
drm/bridge: sii902x: Enable I/O and core VCC supplies if present
tracing/kprobes: Do the notrace functions check without kprobes on ftrace
tools/bootconfig: Add tracing_on support to helper scripts
ext4: use IS_ERR instead of IS_ERR_OR_NULL and set inode null when IS_ERR
ext4: fix wrong list_splice in ext4_fc_cleanup
ext4: fix bug for rename with RENAME_WHITEOUT
cifs: check pointer before freeing
cifs: fix interrupted close commands
riscv: Drop a duplicated PAGE_KERNEL_EXEC
riscv: return -ENOSYS for syscall -1
riscv: Fixup CONFIG_GENERIC_TIME_VSYSCALL
riscv: Fix KASAN memory mapping.
mips: fix Section mismatch in reference
mips: lib: uncached: fix non-standard usage of variable 'sp'
MIPS: boot: Fix unaligned access with CONFIG_MIPS_RAW_APPENDED_DTB
MIPS: Fix malformed NT_FILE and NT_SIGINFO in 32bit coredumps
MIPS: relocatable: fix possible boot hangup with KASLR enabled
RDMA/ocrdma: Fix use after free in ocrdma_dealloc_ucontext_pd()
ACPI: scan: Harden acpi_device_add() against device ID overflows
xen/privcmd: allow fetching resource sizes
compiler.h: Raise minimum version of GCC to 5.1 for arm64
mm/vmalloc.c: fix potential memory leak
mm/hugetlb: fix potential missing huge page size info
mm/process_vm_access.c: include compat.h
dm raid: fix discard limits for raid1
dm snapshot: flush merged data before committing metadata
dm integrity: fix flush with external metadata device
dm integrity: fix the maximum number of arguments
dm crypt: use GFP_ATOMIC when allocating crypto requests from softirq
dm crypt: do not wait for backlogged crypto request completion in softirq
dm crypt: do not call bio_endio() from the dm-crypt tasklet
dm crypt: defer decryption to a tasklet if interrupts disabled
stmmac: intel: change all EHL/TGL to auto detect phy addr
r8152: Add Lenovo Powered USB-C Travel Hub
btrfs: tree-checker: check if chunk item end overflows
ext4: don't leak old mountpoint samples
io_uring: don't take files/mm for a dead task
io_uring: drop mm and files after task_work_run
ARC: build: remove non-existing bootpImage from KBUILD_IMAGE
ARC: build: add uImage.lzma to the top-level target
ARC: build: add boot_targets to PHONY
ARC: build: move symlink creation to arch/arc/Makefile to avoid race
ARM: omap2: pmic-cpcap: fix maximum voltage to be consistent with defaults on xt875
ath11k: fix crash caused by NULL rx_channel
netfilter: ipset: fixes possible oops in mtype_resize
ath11k: qmi: try to allocate a big block of DMA memory first
btrfs: fix async discard stall
btrfs: merge critical sections of discard lock in workfn
btrfs: fix transaction leak and crash after RO remount caused by qgroup rescan
regulator: bd718x7: Add enable times
ethernet: ucc_geth: fix definition and size of ucc_geth_tx_global_pram
ARM: dts: ux500/golden: Set display max brightness
habanalabs: adjust pci controller init to new firmware
habanalabs/gaudi: retry loading TPC f/w on -EINTR
habanalabs: register to pci shutdown callback
staging: spmi: hisi-spmi-controller: Fix some error handling paths
spi: altera: fix return value for altera_spi_txrx()
habanalabs: Fix memleak in hl_device_reset
hwmon: (pwm-fan) Ensure that calculation doesn't discard big period values
lib/raid6: Let $(UNROLL) rules work with macOS userland
kconfig: remove 'kvmconfig' and 'xenconfig' shorthands
spi: fix the divide by 0 error when calculating xfer waiting time
io_uring: drop file refs after task cancel
bfq: Fix computation of shallow depth
arch/arc: add copy_user_page() to to fix build error on ARC
misdn: dsp: select CONFIG_BITREVERSE
net: ethernet: fs_enet: Add missing MODULE_LICENSE
selftests: fix the return value for UDP GRO test
nvme-pci: mark Samsung PM1725a as IGNORE_DEV_SUBNQN
nvme: avoid possible double fetch in handling CQE
nvmet-rdma: Fix list_del corruption on queue establishment failure
drm/amd/display: fix sysfs amdgpu_current_backlight_pwm NULL pointer issue
drm/amdgpu: fix a GPU hang issue when remove device
drm/amd/pm: fix the failure when change power profile for renoir
drm/amdgpu: fix potential memory leak during navi12 deinitialization
usb: typec: Fix copy paste error for NVIDIA alt-mode description
iommu/vt-d: Fix lockdep splat in sva bind()/unbind()
ACPI: scan: add stub acpi_create_platform_device() for !CONFIG_ACPI
drm/msm: Call msm_init_vram before binding the gpu
ARM: picoxcell: fix missing interrupt-parent properties
poll: fix performance regression due to out-of-line __put_user()
rcu-tasks: Move RCU-tasks initialization to before early_initcall()
bpf: Simplify task_file_seq_get_next()
bpf: Save correct stopping point in file seq iteration
x86/sev-es: Fix SEV-ES OUT/IN immediate opcode vc handling
cfg80211: select CONFIG_CRC32
nvme-fc: avoid calling _nvme_fc_abort_outstanding_ios from interrupt context
iommu/vt-d: Update domain geometry in iommu_ops.at(de)tach_dev
net/mlx5e: CT: Use per flow counter when CT flow accounting is enabled
net/mlx5: Fix passing zero to 'PTR_ERR'
net/mlx5: E-Switch, fix changing vf VLANID
blk-mq-debugfs: Add decode for BLK_MQ_F_TAG_HCTX_SHARED
mm: fix clear_refs_write locking
mm: don't play games with pinned pages in clear_page_refs
mm: don't put pinned pages into the swap cache
perf intel-pt: Fix 'CPU too large' error
dump_common_audit_data(): fix racy accesses to ->d_name
ASoC: meson: axg-tdm-interface: fix loopback
ASoC: meson: axg-tdmin: fix axg skew offset
ASoC: Intel: fix error code cnl_set_dsp_D0()
nvmet-rdma: Fix NULL deref when setting pi_enable and traddr INADDR_ANY
nvme: don't intialize hwmon for discovery controllers
nvme-tcp: fix possible data corruption with bio merges
nvme-tcp: Fix warning with CONFIG_DEBUG_PREEMPT
NFS4: Fix use-after-free in trace_event_raw_event_nfs4_set_lock
pNFS: We want return-on-close to complete when evicting the inode
pNFS: Mark layout for return if return-on-close was not sent
pNFS: Stricter ordering of layoutget and layoutreturn
NFS: Adjust fs_context error logging
NFS/pNFS: Don't call pnfs_free_bucket_lseg() before removing the request
NFS/pNFS: Don't leak DS commits in pnfs_generic_retry_commit()
NFS/pNFS: Fix a leak of the layout 'plh_outstanding' counter
NFS: nfs_delegation_find_inode_server must first reference the superblock
NFS: nfs_igrab_and_active must first reference the superblock
scsi: ufs: Fix possible power drain during system suspend
ext4: fix superblock checksum failure when setting password salt
RDMA/restrack: Don't treat as an error allocation ID wrapping
RDMA/usnic: Fix memleak in find_free_vf_and_create_qp_grp
bnxt_en: Improve stats context resource accounting with RDMA driver loaded.
RDMA/mlx5: Fix wrong free of blue flame register on error
IB/mlx5: Fix error unwinding when set_has_smi_cap fails
umount(2): move the flag validity checks first
dm zoned: select CONFIG_CRC32
drm/i915/dsi: Use unconditional msleep for the panel_on_delay when there is no reset-deassert MIPI-sequence
drm/i915/icl: Fix initing the DSI DSC power refcount during HW readout
drm/i915/gt: Restore clear-residual mitigations for Ivybridge, Baytrail
mm, slub: consider rest of partial list if acquire_slab() fails
riscv: Trace irq on only interrupt is enabled
iommu/vt-d: Fix unaligned addresses for intel_flush_svm_range_dev()
net: sunrpc: interpret the return value of kstrtou32 correctly
selftests: netfilter: Pass family parameter "-f" to conntrack tool
dm: eliminate potential source of excessive kernel log noise
ALSA: fireface: Fix integer overflow in transmit_midi_msg()
ALSA: firewire-tascam: Fix integer overflow in midi_port_work()
netfilter: conntrack: fix reading nf_conntrack_buckets
netfilter: nf_nat: Fix memleak in nf_nat_init
Linux 5.10.9Signed-off-by: Greg Kroah-Hartman
Change-Id: I609e501511889081e03d2d18ee7e1be95406f396 -
[ Upstream commit 0c36d88cff4d72149f94809303c5180b6f716d39 ]
Older versions of BSD awk are fussy about the order of '-v' and '-f'
flags, and require a space after the flag name. This causes build
failures on platforms with an old awk, such as macOS and NetBSD.Since GNU awk and modern versions of BSD awk (distributed with
FreeBSD/OpenBSD) are fine with either form, the definition of
'cmd_unroll' can be trivially tweaked to let the lib/raid6 Makefile
work with both old and new awk flag dialects.Signed-off-by: John Millikin
Signed-off-by: Masahiro Yamada
Signed-off-by: Sasha Levin
15 Jan, 2021
1 commit
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Casting the comparison function to a different type trips indirect call
Control-Flow Integrity (CFI) checking. Remove the additional consts from
cmp_func, and the now unneeded casts.Bug: 145210207
Change-Id: Iffe0eeec8e7f65a5937513a4bb87e5107faa004e
Link: https://lore.kernel.org/lkml/20200110225602.91663-1-samitolvanen@google.com/
Fixes: 043b3f7b6388 ("lib/list_sort: simplify and remove MAX_LIST_LENGTH_BITS")
Signed-off-by: Sami Tolvanen
13 Jan, 2021
1 commit
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[ Upstream commit 36845663843fc59c5d794e3dc0641472e3e572da ]
Some graphic card has very big memory on chip, such as 32G bytes.
In the following case, it will cause overflow:
pool = gen_pool_create(PAGE_SHIFT, NUMA_NO_NODE);
ret = gen_pool_add(pool, 0x1000000, SZ_32G, NUMA_NO_NODE);va = gen_pool_alloc(pool, SZ_4G);
The overflow occurs in gen_pool_alloc_algo_owner():
....
size = nbits << order;
....The @nbits is "int" type, so it will overflow.
Then the gen_pool_avail() will return the wrong value.This patch converts some "int" to "unsigned long", and
changes the compare code in while.Link: https://lkml.kernel.org/r/20201229060657.3389-1-sjhuang@iluvatar.ai
Signed-off-by: Huang Shijie
Reported-by: Shi Jiasheng
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
Signed-off-by: Sasha Levin
06 Jan, 2021
2 commits
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commit 605cc30dea249edf1b659e7d0146a2cf13cbbf71 upstream.
In commit 11fb479ff5d9 ("zlib: export S390 symbols for zlib modules"), I
added EXPORT_SYMBOL()s to dfltcc_inflate.c but then Mikhail said that
these should probably be in dfltcc_syms.c with the other
EXPORT_SYMBOL()s.However, that is contrary to the current kernel style, which places
EXPORT_SYMBOL() immediately after the function that it applies to, so
move all EXPORT_SYMBOL()s to their respective function locations and
drop the dfltcc_syms.c file. Also move MODULE_LICENSE() from the
deleted file to dfltcc.c.[rdunlap@infradead.org: remove dfltcc_syms.o from Makefile]
Link: https://lkml.kernel.org/r/20201227171837.15492-1-rdunlap@infradead.orgLink: https://lkml.kernel.org/r/20201219052530.28461-1-rdunlap@infradead.org
Fixes: 11fb479ff5d9 ("zlib: export S390 symbols for zlib modules")
Signed-off-by: Randy Dunlap
Cc: Acked-by: Ilya Leoshkevich
Acked-by: Christian Borntraeger
Cc: Zaslonko Mikhail
Cc: Heiko Carstens
Cc: Vasily Gorbik
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
Signed-off-by: Greg Kroah-Hartman -
commit f0bb29e8c4076444d32df00c8d32e169ceecf283 upstream.
Decompressing zlib streams on s390 fails with "incorrect data check"
error.Userspace zlib checks inflate_state.flags in order to byteswap checksums
only for zlib streams, and s390 hardware inflate code, which was ported
from there, tries to match this behavior. At the same time, kernel zlib
does not use inflate_state.flags, so it contains essentially random
values. For many use cases either zlib stream is zeroed out or checksum
is not used, so this problem is masked, but at least SquashFS is still
affected.Fix by always passing a checksum to and from the hardware as is, which
matches zlib_inflate()'s expectations.Link: https://lkml.kernel.org/r/20201215155551.894884-1-iii@linux.ibm.com
Fixes: 126196100063 ("lib/zlib: add s390 hardware support for kernel zlib_inflate")
Signed-off-by: Ilya Leoshkevich
Tested-by: Christian Borntraeger
Acked-by: Mikhail Zaslonko
Acked-by: Christian Borntraeger
Cc: Heiko Carstens
Cc: Vasily Gorbik
Cc: Mikhail Zaslonko
Cc: [5.6+]
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
Signed-off-by: Greg Kroah-Hartman
30 Dec, 2020
1 commit
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commit 3577afb0052fca65e67efdfc8e0859bb7bac87a6 upstream.
In commit a2d375eda771 ("dyndbg: refine export, rename to
dynamic_debug_exec_queries()"), a string is copied before checking it
isn't NULL. Fix this, report a usage/interface error, and return the
proper error code.Fixes: a2d375eda771 ("dyndbg: refine export, rename to dynamic_debug_exec_queries()")
Cc: stable@vger.kernel.org
Signed-off-by: Jim Cromie
Link: https://lore.kernel.org/r/20201209183625.2432329-1-jim.cromie@gmail.com
Signed-off-by: Greg Kroah-Hartman
12 Dec, 2020
1 commit
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With extra warnings enabled, clang complains about the redundant
-mhard-float argument:clang: error: argument unused during compilation: '-mhard-float' [-Werror,-Wunused-command-line-argument]
Move this into the gcc-only part of the Makefile.
Link: https://lkml.kernel.org/r/20201203223652.1320700-1-arnd@kernel.org
Fixes: 4185b3b92792 ("selftests/fpu: Add an FPU selftest")
Signed-off-by: Arnd Bergmann
Cc: Nathan Chancellor
Cc: Nick Desaulniers
Cc: Petteri Aimonen
Cc: Borislav Petkov
Cc: Arnd Bergmann
Cc: Andy Shevchenko
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
07 Dec, 2020
1 commit
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Fix build errors when ZLIB_INFLATE=m and ZLIB_DEFLATE=m and ZLIB_DFLTCC=y
by exporting the 2 needed symbols in dfltcc_inflate.c.Fixes these build errors:
ERROR: modpost: "dfltcc_inflate" [lib/zlib_inflate/zlib_inflate.ko] undefined!
ERROR: modpost: "dfltcc_can_inflate" [lib/zlib_inflate/zlib_inflate.ko] undefined!Fixes: 126196100063 ("lib/zlib: add s390 hardware support for kernel zlib_inflate")
Reported-by: kernel test robot
Signed-off-by: Randy Dunlap
Signed-off-by: Andrew Morton
Acked-by: Ilya Leoshkevich
Cc: Mikhail Zaslonko
Cc: Heiko Carstens
Cc: Vasily Gorbik
Cc: Christian Borntraeger
Link: https://lkml.kernel.org/r/20201123191712.4882-1-rdunlap@infradead.org
Signed-off-by: Linus Torvalds
04 Dec, 2020
1 commit
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Lilith >_> and Claudio Bozzato of Cisco Talos security team reported
that collect_syscall() improperly casts the syscall registers to 64-bit
values leaking the uninitialized last 24 bytes on 32-bit platforms, that
are visible in /proc/self/syscall.The cause is that info->data.args are u64 while syscall_get_arguments()
uses longs, as hinted by the bogus pointer cast in the function.Let's just proceed like the other call places, by retrieving the
registers into an array of longs before assigning them to the caller's
array. This was successfully tested on x86_64, i386 and ppc32.Reference: CVE-2020-28588, TALOS-2020-1211
Fixes: 631b7abacd02 ("ptrace: Remove maxargs from task_current_syscall()")
Cc: Greg KH
Reviewed-by: Kees Cook
Tested-by: Michael Ellerman (ppc32)
Signed-off-by: Willy Tarreau
Reviewed-by: Thomas Gleixner
Signed-off-by: Linus Torvalds
20 Nov, 2020
1 commit
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do_strncpy_from_user() may copy some extra bytes after the NUL
terminator into the destination buffer. This usually does not matter for
normal string operations. However, when BPF programs key BPF maps with
strings, this matters a lot.A BPF program may read strings from user memory by calling the
bpf_probe_read_user_str() helper which eventually calls
do_strncpy_from_user(). The program can then key a map with the
destination buffer. BPF map keys are fixed-width and string-agnostic,
meaning that map keys are treated as a set of bytes.The issue is when do_strncpy_from_user() overcopies bytes after the NUL
terminator, it can result in seemingly identical strings occupying
multiple slots in a BPF map. This behavior is subtle and totally
unexpected by the user.This commit masks out the bytes following the NUL while preserving
long-sized stride in the fast path.Fixes: 6ae08ae3dea2 ("bpf: Add probe_read_{user, kernel} and probe_read_{user, kernel}_str helpers")
Signed-off-by: Daniel Xu
Signed-off-by: Alexei Starovoitov
Link: https://lore.kernel.org/bpf/21efc982b3e9f2f7b0379eed642294caaa0c27a7.1605642949.git.dxu@dxuuu.xyz
07 Nov, 2020
1 commit
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Pull drm fixes from Dave Airlie:
"It's Friday here so that means another installment of drm fixes to
distract you from the counting process.Changes all over the place, the amdgpu changes contain support for a
new GPU that is close to current one already in the tree (Green
Sardine) so it shouldn't have much side effects.Otherwise imx has a few cleanup patches and fixes, amdgpu and i915
have around the usual smattering of fixes, fonts got constified, and
vc4/panfrost has some minor fixes. All in all a fairly regular rc3.We have an outstanding nouveau regression, but the author is looking
into the fix, so should be here next week.I now return you to counting.
fonts:
- constify font structures.MAINTAINERS:
- Fix path for amdgpu power managementamdgpu:
- Add support for more navi1x SKUs
- Fix for suspend on CI dGPUs
- VCN DPG fix for Picasso
- Sienna Cichlid fixes
- Polaris DPM fix
- Add support for Green Sardineamdkfd:
- Fix an allocation failure checki915:
- Fix set domain's cache coherency
- Fixes around breadcrumbs
- Fix encoder lookup during PSR atomic
- Hold onto an explicit ref to i915_vma_work.pinned
- gvt: HWSP reset handling fix
- gvt: flush workaround
- gvt: vGPU context pin/unpin
- gvt: mmio cmd access fix for bxt/aplimx:
- drop unused functions and callbacks
- reuse imx_drm_encoder_parse_of
- spinlock rework
- memory leak fix
- minor cleanupsvc4:
- resource cleanup fixpanfrost:
- madvise/shrinker fix"* tag 'drm-fixes-2020-11-06-1' of git://anongit.freedesktop.org/drm/drm: (55 commits)
drm/amdgpu/display: remove DRM_AMD_DC_GREEN_SARDINE
drm/amd/display: Add green_sardine support to DM
drm/amd/display: Add green_sardine support to DC
drm/amdgpu: enable vcn support for green_sardine (v2)
drm/amdgpu: enable green_sardine_asd.bin loading (v2)
drm/amdgpu/sdma: add sdma engine support for green_sardine (v2)
drm/amdgpu: add gfx support for green_sardine (v2)
drm/amdgpu: add soc15 common ip block support for green_sardine (v3)
drm/amdgpu: add green_sardine support for gpu_info and ip block setting (v2)
drm/amdgpu: add Green_Sardine APU flag
drm/amdgpu: resolved ASD loading issue on sienna
amdkfd: Check kvmalloc return before memcpy
drm/amdgpu: update golden setting for sienna_cichlid
amd/amdgpu: Disable VCN DPG mode for Picasso
drm/amdgpu/swsmu: remove duplicate call to smu_set_default_dpm_table
drm/i915: Hold onto an explicit ref to i915_vma_work.pinned
drm/i915/gt: Flush xcs before tgl breadcrumbs
drm/i915/gt: Expose more parameters for emitting writes into the ring
drm/i915: Fix encoder lookup during PSR atomic check
drm/i915/gt: Use the local HWSP offset during submission
...
03 Nov, 2020
3 commits
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Commit 6735b4632def ("Fonts: Support FONT_EXTRA_WORDS macros for built-in
fonts") introduced the following error when building rpc_defconfig (only
this build appears to be affected):`acorndata_8x8' referenced in section `.text' of arch/arm/boot/compressed/ll_char_wr.o:
defined in discarded section `.data' of arch/arm/boot/compressed/font.o
`acorndata_8x8' referenced in section `.data.rel.ro' of arch/arm/boot/compressed/font.o:
defined in discarded section `.data' of arch/arm/boot/compressed/font.o
make[3]: *** [/scratch/linux/arch/arm/boot/compressed/Makefile:191: arch/arm/boot/compressed/vmlinux] Error 1
make[2]: *** [/scratch/linux/arch/arm/boot/Makefile:61: arch/arm/boot/compressed/vmlinux] Error 2
make[1]: *** [/scratch/linux/arch/arm/Makefile:317: zImage] Error 2The .data section is discarded at link time. Reinstating acorndata_8x8 as
const ensures it is still available after linking. Do the same for the
other 12 built-in fonts as well, for consistency purposes.Cc:
Cc: Russell King
Reviewed-by: Greg Kroah-Hartman
Fixes: 6735b4632def ("Fonts: Support FONT_EXTRA_WORDS macros for built-in fonts")
Signed-off-by: Lee Jones
Co-developed-by: Peilin Ye
Signed-off-by: Peilin Ye
Signed-off-by: Daniel Vetter
Link: https://patchwork.freedesktop.org/patch/msgid/20201102183242.2031659-1-yepeilin.cs@gmail.com -
Commit 4d004099a668 ("lockdep: Fix lockdep recursion") uncovered the
following issue in lib/crc32test reported on s390:BUG: using __this_cpu_read() in preemptible [00000000] code: swapper/0/1
caller is lockdep_hardirqs_on_prepare+0x48/0x270
CPU: 6 PID: 1 Comm: swapper/0 Not tainted 5.9.0-next-20201015-15164-g03d992bd2de6 #19
Hardware name: IBM 3906 M04 704 (LPAR)
Call Trace:
lockdep_hardirqs_on_prepare+0x48/0x270
trace_hardirqs_on+0x9c/0x1b8
crc32_test.isra.0+0x170/0x1c0
crc32test_init+0x1c/0x40
do_one_initcall+0x40/0x130
do_initcalls+0x126/0x150
kernel_init_freeable+0x1f6/0x230
kernel_init+0x22/0x150
ret_from_fork+0x24/0x2c
no locks held by swapper/0/1.Remove extra local_irq_disable/local_irq_enable helpers calls.
Fixes: 5fb7f87408f1 ("lib: add module support to crc32 tests")
Signed-off-by: Vasily Gorbik
Signed-off-by: Andrew Morton
Cc: Peter Zijlstra
Cc: Ingo Molnar
Cc: Greg Kroah-Hartman
Link: https://lkml.kernel.org/r/patch.git-4369da00c06e.your-ad-here.call-01602859837-ext-1679@work.hours
Signed-off-by: Linus Torvalds -
Now that we have KASAN-KUNIT tests integration, it's easy to see that
some KASAN tests are not adopted to the SW_TAGS mode and are failing.Adjust the allocation size for kasan_memchr() and kasan_memcmp() by
roung it up to OOB_TAG_OFF so the bad access ends up in a separate
memory granule.Add a new kmalloc_uaf_16() tests that relies on UAF, and a new
kasan_bitops_tags() test that is tailored to tag-based mode, as it's
hard to adopt the existing kmalloc_oob_16() and kasan_bitops_generic()
(renamed from kasan_bitops()) without losing the precision.Add new kmalloc_uaf_16() and kasan_bitops_uaf() tests that rely on UAFs,
as it's hard to adopt the existing kmalloc_oob_16() and
kasan_bitops_oob() (rename from kasan_bitops()) without losing the
precision.Disable kasan_global_oob() and kasan_alloca_oob_left/right() as SW_TAGS
mode doesn't instrument globals nor dynamic allocas.Signed-off-by: Andrey Konovalov
Signed-off-by: Andrew Morton
Tested-by: David Gow
Link: https://lkml.kernel.org/r/76eee17b6531ca8b3ca92b240cb2fd23204aaff7.1603129942.git.andreyknvl@google.com
Signed-off-by: Linus Torvalds
02 Nov, 2020
1 commit
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Pull driver core and documentation fixes from Greg KH:
"Here is one tiny debugfs change to fix up an API where the last user
was successfully fixed up in 5.10-rc1 (so it couldn't be merged
earlier), and a much larger Documentation/ABI/ update to the files so
they can be automatically parsed by our tools.The Documentation/ABI/ updates are just formatting issues, small ones
to bring the files into parsable format, and have been acked by
numerous subsystem maintainers and the documentation maintainer. I
figured it was good to get this into 5.10-rc2 to help wih the merge
issues that would arise if these were to stick in linux-next until
5.11-rc1.The debugfs change has been in linux-next for a long time, and the
Documentation updates only for the last linux-next release"* tag 'driver-core-5.10-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (40 commits)
scripts: get_abi.pl: assume ReST format by default
docs: ABI: sysfs-class-led-trigger-pattern: remove hw_pattern duplication
docs: ABI: sysfs-class-backlight: unify ABI documentation
docs: ABI: sysfs-c2port: remove a duplicated entry
docs: ABI: sysfs-class-power: unify duplicated properties
docs: ABI: unify /sys/class/leds//brightness documentation
docs: ABI: stable: remove a duplicated documentation
docs: ABI: change read/write attributes
docs: ABI: cleanup several ABI documents
docs: ABI: sysfs-bus-nvdimm: use the right format for ABI
docs: ABI: vdso: use the right format for ABI
docs: ABI: fix syntax to be parsed using ReST notation
docs: ABI: convert testing/configfs-acpi to ReST
docs: Kconfig/Makefile: add a check for broken ABI files
docs: abi-testing.rst: enable --rst-sources when building docs
docs: ABI: don't escape ReST-incompatible chars from obsolete and removed
docs: ABI: create a 2-depth index for ABI
docs: ABI: make it parse ABI/stable as ReST-compatible files
docs: ABI: sysfs-uevent: make it compatible with ReST output
docs: ABI: testing: make the files compatible with ReST output
...
30 Oct, 2020
1 commit
-
The files under Documentation/ABI should follow the syntax
as defined at Documentation/ABI/README.Allow checking if they're following the syntax by running
the ABI parser script on COMPILE_TEST.With that, when there's a problem with a file under
Documentation/ABI, it would produce a warning like:Warning: file ./Documentation/ABI/testing/sysfs-bus-pci-devices-aer_stats#14:
What '/sys/bus/pci/devices//aer_stats/aer_rootport_total_err_cor' doesn't have a description
Warning: file ./Documentation/ABI/testing/sysfs-bus-pci-devices-aer_stats#21:
What '/sys/bus/pci/devices//aer_stats/aer_rootport_total_err_fatal' doesn't have a descriptionAcked-by: Jonathan Corbet
Signed-off-by: Mauro Carvalho Chehab
Link: https://lore.kernel.org/r/57a38de85cb4b548857207cf1fc1bf1ee08613c9.1604042072.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman
29 Oct, 2020
1 commit
-
sg_copy_buffer() returns a size_t with the number of bytes copied.
Return 0 instead of false if the copy is skipped.Signed-off-by: David Disseldorp
Reviewed-by: Douglas Gilbert
Reviewed-by: Johannes Thumshirn
Signed-off-by: Jens Axboe
26 Oct, 2020
1 commit
-
Pull random32 updates from Willy Tarreau:
"Make prandom_u32() less predictable.This is the cleanup of the latest series of prandom_u32
experimentations consisting in using SipHash instead of Tausworthe to
produce the randoms used by the network stack.The changes to the files were kept minimal, and the controversial
commit that used to take noise from the fast_pool (f227e3ec3b5c) was
reverted. Instead, a dedicated "net_rand_noise" per_cpu variable is
fed from various sources of activities (networking, scheduling) to
perturb the SipHash state using fast, non-trivially predictable data,
instead of keeping it fully deterministic. The goal is essentially to
make any occasional memory leakage or brute-force attempt useless.The resulting code was verified to be very slightly faster on x86_64
than what is was with the controversial commit above, though this
remains barely above measurement noise. It was also tested on i386 and
arm, and build- tested only on arm64"Link: https://lore.kernel.org/netdev/20200808152628.GA27941@SDF.ORG/
* tag '20201024-v4-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/wtarreau/prandom:
random32: add a selftest for the prandom32 code
random32: add noise from network and scheduling activity
random32: make prandom_u32() output unpredictable
25 Oct, 2020
4 commits
-
Pull block fixes from Jens Axboe:
- NVMe pull request from Christoph
- rdma error handling fixes (Chao Leng)
- fc error handling and reconnect fixes (James Smart)
- fix the qid displace when tracing ioctl command (Keith Busch)
- don't use BLK_MQ_REQ_NOWAIT for passthru (Chaitanya Kulkarni)
- fix MTDT for passthru (Logan Gunthorpe)
- blacklist Write Same on more devices (Kai-Heng Feng)
- fix an uninitialized work struct (zhenwei pi)"- lightnvm out-of-bounds fix (Colin)
- SG allocation leak fix (Doug)
- rnbd fixes (Gioh, Guoqing, Jack)
- zone error translation fixes (Keith)
- kerneldoc markup fix (Mauro)
- zram lockdep fix (Peter)
- Kill unused io_context members (Yufen)
- NUMA memory allocation cleanup (Xianting)
- NBD config wakeup fix (Xiubo)
* tag 'block-5.10-2020-10-24' of git://git.kernel.dk/linux-block: (27 commits)
block: blk-mq: fix a kernel-doc markup
nvme-fc: shorten reconnect delay if possible for FC
nvme-fc: wait for queues to freeze before calling update_hr_hw_queues
nvme-fc: fix error loop in create_hw_io_queues
nvme-fc: fix io timeout to abort I/O
null_blk: use zone status for max active/open
nvmet: don't use BLK_MQ_REQ_NOWAIT for passthru
nvmet: cleanup nvmet_passthru_map_sg()
nvmet: limit passthru MTDS by BIO_MAX_PAGES
nvmet: fix uninitialized work for zero kato
nvme-pci: disable Write Zeroes on Sandisk Skyhawk
nvme: use queuedata for nvme_req_qid
nvme-rdma: fix crash due to incorrect cqe
nvme-rdma: fix crash when connect rejected
block: remove unused members for io_context
blk-mq: remove the calling of local_memory_node()
zram: Fix __zram_bvec_{read,write}() locking order
skd_main: remove unused including
sgl_alloc_order: fix memory leak
lightnvm: fix out-of-bounds write to array devices->info[]
... -
Given that this code is new, let's add a selftest for it as well.
It doesn't rely on fixed sets, instead it picks 1024 numbers and
verifies that they're not more correlated than desired.Link: https://lore.kernel.org/netdev/20200808152628.GA27941@SDF.ORG/
Cc: George Spelvin
Cc: Amit Klein
Cc: Eric Dumazet
Cc: "Jason A. Donenfeld"
Cc: Andy Lutomirski
Cc: Kees Cook
Cc: Thomas Gleixner
Cc: Peter Zijlstra
Cc: Linus Torvalds
Cc: tytso@mit.edu
Cc: Florian Westphal
Cc: Marc Plumb
Signed-off-by: Willy Tarreau -
With the removal of the interrupt perturbations in previous random32
change (random32: make prandom_u32() output unpredictable), the PRNG
has become 100% deterministic again. While SipHash is expected to be
way more robust against brute force than the previous Tausworthe LFSR,
there's still the risk that whoever has even one temporary access to
the PRNG's internal state is able to predict all subsequent draws till
the next reseed (roughly every minute). This may happen through a side
channel attack or any data leak.This patch restores the spirit of commit f227e3ec3b5c ("random32: update
the net random state on interrupt and activity") in that it will perturb
the internal PRNG's statee using externally collected noise, except that
it will not pick that noise from the random pool's bits nor upon
interrupt, but will rather combine a few elements along the Tx path
that are collectively hard to predict, such as dev, skb and txq
pointers, packet length and jiffies values. These ones are combined
using a single round of SipHash into a single long variable that is
mixed with the net_rand_state upon each invocation.The operation was inlined because it produces very small and efficient
code, typically 3 xor, 2 add and 2 rol. The performance was measured
to be the same (even very slightly better) than before the switch to
SipHash; on a 6-core 12-thread Core i7-8700k equipped with a 40G NIC
(i40e), the connection rate dropped from 556k/s to 555k/s while the
SYN cookie rate grew from 5.38 Mpps to 5.45 Mpps.Link: https://lore.kernel.org/netdev/20200808152628.GA27941@SDF.ORG/
Cc: George Spelvin
Cc: Amit Klein
Cc: Eric Dumazet
Cc: "Jason A. Donenfeld"
Cc: Andy Lutomirski
Cc: Kees Cook
Cc: Thomas Gleixner
Cc: Peter Zijlstra
Cc: Linus Torvalds
Cc: tytso@mit.edu
Cc: Florian Westphal
Cc: Marc Plumb
Tested-by: Sedat Dilek
Signed-off-by: Willy Tarreau -
Non-cryptographic PRNGs may have great statistical properties, but
are usually trivially predictable to someone who knows the algorithm,
given a small sample of their output. An LFSR like prandom_u32() is
particularly simple, even if the sample is widely scattered bits.It turns out the network stack uses prandom_u32() for some things like
random port numbers which it would prefer are *not* trivially predictable.
Predictability led to a practical DNS spoofing attack. Oops.This patch replaces the LFSR with a homebrew cryptographic PRNG based
on the SipHash round function, which is in turn seeded with 128 bits
of strong random key. (The authors of SipHash have *not* been consulted
about this abuse of their algorithm.) Speed is prioritized over security;
attacks are rare, while performance is always wanted.Replacing all callers of prandom_u32() is the quick fix.
Whether to reinstate a weaker PRNG for uses which can tolerate it
is an open question.Commit f227e3ec3b5c ("random32: update the net random state on interrupt
and activity") was an earlier attempt at a solution. This patch replaces
it.Reported-by: Amit Klein
Cc: Willy Tarreau
Cc: Eric Dumazet
Cc: "Jason A. Donenfeld"
Cc: Andy Lutomirski
Cc: Kees Cook
Cc: Thomas Gleixner
Cc: Peter Zijlstra
Cc: Linus Torvalds
Cc: tytso@mit.edu
Cc: Florian Westphal
Cc: Marc Plumb
Fixes: f227e3ec3b5c ("random32: update the net random state on interrupt and activity")
Signed-off-by: George Spelvin
Link: https://lore.kernel.org/netdev/20200808152628.GA27941@SDF.ORG/
[ willy: partial reversal of f227e3ec3b5c; moved SIPROUND definitions
to prandom.h for later use; merged George's prandom_seed() proposal;
inlined siprand_u32(); replaced the net_rand_state[] array with 4
members to fix a build issue; cosmetic cleanups to make checkpatch
happy; fixed RANDOM32_SELFTEST build ]
Signed-off-by: Willy Tarreau
24 Oct, 2020
1 commit
-
Pull more drm fixes from Dave Airlie:
"This should be the last round of things for rc1, a bunch of i915
fixes, some amdgpu, more font OOB fixes and one ttm fix just found
reading code:fbcon/fonts:
- Two patches to prevent OOB accessttm:
- fix for evicition value range checkamdgpu:
- Sienna Cichlid fixes
- MST manager resource leak fix
- GPU reset fixamdkfd:
- Luxmark fix for Navi1xi915:
- Tweak initial DPCD backlight.enabled value (Sean)
- Initialize reserved MOCS indices (Ayaz)
- Mark initial fb obj as WT on eLLC machines to avoid rcu lockup (Ville)
- Support parsing of oversize batches (Chris)
- Delay execlists processing for TGL (Chris)
- Use the active reference on the vma during error capture (Chris)
- Widen CSB pointer (Chris)
- Wait for CSB entries on TGL (Chris)
- Fix unwind for scratch page allocation (Chris)
- Exclude low patches of stolen memory (Chris)
- Force VT'd workarounds when running as a guest OS (Chris)
- Drop runtime-pm assert from vpgu io accessors (Chris)"* tag 'drm-next-2020-10-23' of git://anongit.freedesktop.org/drm/drm: (31 commits)
drm/amdgpu: correct the cu and rb info for sienna cichlid
drm/amd/pm: remove the average clock value in sysfs
drm/amd/pm: fix pp_dpm_fclk
Revert drm/amdgpu: disable sienna chichlid UMC RAS
drm/amd/pm: fix pcie information for sienna cichlid
drm/amdkfd: Use same SQ prefetch setting as amdgpu
drm/amd/swsmu: correct wrong feature bit mapping
drm/amd/psp: Fix sysfs: cannot create duplicate filename
drm/amd/display: Avoid MST manager resource leak.
drm/amd/display: Revert "drm/amd/display: Fix a list corruption"
drm/amdgpu: update golden setting for sienna_cichlid
drm/amd/swsmu: add missing feature map for sienna_cichlid
drm/amdgpu: correct the gpu reset handling for job != NULL case
drm/amdgpu: add rlc iram and dram firmware support
drm/amdgpu: add function to program pbb mode for sienna cichlid
drm/i915: Drop runtime-pm assert from vgpu io accessors
drm/i915: Force VT'd workarounds when running as a guest OS
drm/i915: Exclude low pages (128KiB) of stolen from use
drm/i915/gt: Onion unwind for scratch page allocation failure
drm/ttm: fix eviction valuable range check.
...
23 Oct, 2020
2 commits
-
Pull Kbuild updates from Masahiro Yamada:
- Support 'make compile_commands.json' to generate the compilation
database more easily, avoiding stale entries- Support 'make clang-analyzer' and 'make clang-tidy' for static checks
using clang-tidy- Preprocess scripts/modules.lds.S to allow CONFIG options in the
module linker script- Drop cc-option tests from compiler flags supported by our minimal
GCC/Clang versions- Use always 12-digits commit hash for CONFIG_LOCALVERSION_AUTO=y
- Use sha1 build id for both BFD linker and LLD
- Improve deb-pkg for reproducible builds and rootless builds
- Remove stale, useless scripts/namespace.pl
- Turn -Wreturn-type warning into error
- Fix build error of deb-pkg when CONFIG_MODULES=n
- Replace 'hostname' command with more portable 'uname -n'
- Various Makefile cleanups
* tag 'kbuild-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (34 commits)
kbuild: Use uname for LINUX_COMPILE_HOST detection
kbuild: Only add -fno-var-tracking-assignments for old GCC versions
kbuild: remove leftover comment for filechk utility
treewide: remove DISABLE_LTO
kbuild: deb-pkg: clean up package name variables
kbuild: deb-pkg: do not build linux-headers package if CONFIG_MODULES=n
kbuild: enforce -Werror=return-type
scripts: remove namespace.pl
builddeb: Add support for all required debian/rules targets
builddeb: Enable rootless builds
builddeb: Pass -n to gzip for reproducible packages
kbuild: split the build log of kallsyms
kbuild: explicitly specify the build id style
scripts/setlocalversion: make git describe output more reliable
kbuild: remove cc-option test of -Werror=date-time
kbuild: remove cc-option test of -fno-stack-check
kbuild: remove cc-option test of -fno-strict-overflow
kbuild: move CFLAGS_{KASAN,UBSAN,KCSAN} exports to relevant Makefiles
kbuild: remove redundant CONFIG_KASAN check from scripts/Makefile.kasan
kbuild: do not create built-in objects for external module builds
... -
Pull initial set_fs() removal from Al Viro:
"Christoph's set_fs base series + fixups"* 'work.set_fs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
fs: Allow a NULL pos pointer to __kernel_read
fs: Allow a NULL pos pointer to __kernel_write
powerpc: remove address space overrides using set_fs()
powerpc: use non-set_fs based maccess routines
x86: remove address space overrides using set_fs()
x86: make TASK_SIZE_MAX usable from assembly code
x86: move PAGE_OFFSET, TASK_SIZE & friends to page_{32,64}_types.h
lkdtm: remove set_fs-based tests
test_bitmap: remove user bitmap tests
uaccess: add infrastructure for kernel builds with set_fs()
fs: don't allow splice read/write without explicit ops
fs: don't allow kernel reads and writes without iter ops
sysctl: Convert to iter interfaces
proc: add a read_iter method to proc proc_ops
proc: cleanup the compat vs no compat file ops
proc: remove a level of indentation in proc_get_inode
21 Oct, 2020
1 commit
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Pull XArray updates from Matthew Wilcox:
- Fix the test suite after introduction of the local_lock
- Fix a bug in the IDA spotted by Coverity
- Change the API that allows the workingset code to delete a node
- Fix xas_reload() when dealing with entries that occupy multiple
indices- Add a few more tests to the test suite
- Fix an unsigned int being shifted into an unsigned long
* tag 'xarray-5.9' of git://git.infradead.org/users/willy/xarray:
XArray: Fix xas_create_range for ranges above 4 billion
radix-tree: fix the comment of radix_tree_next_slot()
XArray: Fix xas_reload for multi-index entries
XArray: Add private interface for workingset node deletion
XArray: Fix xas_for_each_conflict documentation
XArray: Test marked multiorder iterations
XArray: Test two more things about xa_cmpxchg
ida: Free allocated bitmap in error path
radix tree test suite: Fix compilation
19 Oct, 2020
3 commits
-
Recently, in commit 6735b4632def ("Fonts: Support FONT_EXTRA_WORDS macros
for built-in fonts"), we wrapped each of our built-in data buffers in a
`font_data` structure, in order to use the following macros on them, see
include/linux/font.h:#define REFCOUNT(fd) (((int *)(fd))[-1])
#define FNTSIZE(fd) (((int *)(fd))[-2])
#define FNTCHARCNT(fd) (((int *)(fd))[-3])
#define FNTSUM(fd) (((int *)(fd))[-4])#define FONT_EXTRA_WORDS 4
Do the same thing to our new 6x8 font. For built-in fonts, currently we
only use FNTSIZE(). Since this is only a temporary solution for an
out-of-bounds issue in the framebuffer layer (see commit 5af08640795b
("fbcon: Fix global-out-of-bounds read in fbcon_get_font()")), all the
three other fields are intentionally set to zero in order to discourage
using these negative-indexing macros.Signed-off-by: Peilin Ye
Signed-off-by: Daniel Vetter
Link: https://patchwork.freedesktop.org/patch/msgid/926453876c92caac34cba8545716a491754d04d5.1603037079.git.yepeilin.cs@gmail.com -
…/kernel/git/shuah/linux-kselftest
Pull more Kunit updates from Shuah Khan:
- add Kunit to kernel_init() and remove KUnit from init calls entirely.
This addresses the concern that Kunit would not work correctly during
late init phase.- add a linker section where KUnit can put references to its test
suites.This is the first step in transitioning to dispatching all KUnit
tests from a centralized executor rather than having each as its own
separate late_initcall.- add a centralized executor to dispatch tests rather than relying on
late_initcall to schedule each test suite separately. Centralized
execution is for built-in tests only; modules will execute tests when
loaded.- convert bitfield test to use KUnit framework
- Documentation updates for naming guidelines and how
kunit_test_suite() works.- add test plan to KUnit TAP format
* tag 'linux-kselftest-kunit-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
lib: kunit: Fix compilation test when using TEST_BIT_FIELD_COMPILE
lib: kunit: add bitfield test conversion to KUnit
Documentation: kunit: add a brief blurb about kunit_test_suite
kunit: test: add test plan to KUnit TAP format
init: main: add KUnit to kernel init
kunit: test: create a single centralized executor for all tests
vmlinux.lds.h: add linker section for KUnit test suites
Documentation: kunit: Add naming guidelines -
Pull RCU changes from Ingo Molnar:
- Debugging for smp_call_function()
- RT raw/non-raw lock ordering fixes
- Strict grace periods for KASAN
- New smp_call_function() torture test
- Torture-test updates
- Documentation updates
- Miscellaneous fixes
[ This doesn't actually pull the tag - I've dropped the last merge from
the RCU branch due to questions about the series. - Linus ]* tag 'core-rcu-2020-10-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (77 commits)
smp: Make symbol 'csd_bug_count' static
kernel/smp: Provide CSD lock timeout diagnostics
smp: Add source and destination CPUs to __call_single_data
rcu: Shrink each possible cpu krcp
rcu/segcblist: Prevent useless GP start if no CBs to accelerate
torture: Add gdb support
rcutorture: Allow pointer leaks to test diagnostic code
rcutorture: Hoist OOM registry up one level
refperf: Avoid null pointer dereference when buf fails to allocate
rcutorture: Properly synchronize with OOM notifier
rcutorture: Properly set rcu_fwds for OOM handling
torture: Add kvm.sh --help and update help message
rcutorture: Add CONFIG_PROVE_RCU_LIST to TREE05
torture: Update initrd documentation
rcutorture: Replace HTTP links with HTTPS ones
locktorture: Make function torture_percpu_rwsem_init() static
torture: document --allcpus argument added to the kvm.sh script
rcutorture: Output number of elapsed grace periods
rcutorture: Remove KCSAN stubs
rcu: Remove unused "cpu" parameter from rcu_report_qs_rdp()
...
18 Oct, 2020
1 commit
-
Pull rdma updates from Jason Gunthorpe:
"A usual cycle for RDMA with a typical mix of driver and core subsystem
updates:- Driver minor changes and bug fixes for mlx5, efa, rxe, vmw_pvrdma,
hns, usnic, qib, qedr, cxgb4, hns, bnxt_re- Various rtrs fixes and updates
- Bug fix for mlx4 CM emulation for virtualization scenarios where
MRA wasn't working right- Use tracepoints instead of pr_debug in the CM code
- Scrub the locking in ucma and cma to close more syzkaller bugs
- Use tasklet_setup in the subsystem
- Revert the idea that 'destroy' operations are not allowed to fail
at the driver level. This proved unworkable from a HW perspective.- Revise how the umem API works so drivers make fewer mistakes using
it- XRC support for qedr
- Convert uverbs objects RWQ and MW to new the allocation scheme
- Large queue entry sizes for hns
- Use hmm_range_fault() for mlx5 On Demand Paging
- uverbs APIs to inspect the GID table instead of sysfs
- Move some of the RDMA code for building large page SGLs into
lib/scatterlist"* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (191 commits)
RDMA/ucma: Fix use after free in destroy id flow
RDMA/rxe: Handle skb_clone() failure in rxe_recv.c
RDMA/rxe: Move the definitions for rxe_av.network_type to uAPI
RDMA: Explicitly pass in the dma_device to ib_register_device
lib/scatterlist: Do not limit max_segment to PAGE_ALIGNED values
IB/mlx4: Convert rej_tmout radix-tree to XArray
RDMA/rxe: Fix bug rejecting all multicast packets
RDMA/rxe: Fix skb lifetime in rxe_rcv_mcast_pkt()
RDMA/rxe: Remove duplicate entries in struct rxe_mr
IB/hfi,rdmavt,qib,opa_vnic: Update MAINTAINERS
IB/rdmavt: Fix sizeof mismatch
MAINTAINERS: CISCO VIC LOW LATENCY NIC DRIVER
RDMA/bnxt_re: Fix sizeof mismatch for allocation of pbl_tbl.
RDMA/bnxt_re: Use rdma_umem_for_each_dma_block()
RDMA/umem: Move to allocate SG table from pages
lib/scatterlist: Add support in dynamic allocation of SG table from pages
tools/testing/scatterlist: Show errors in human readable form
tools/testing/scatterlist: Rejuvenate bit-rotten test
RDMA/ipoib: Set rtnl_link_ops for ipoib interfaces
RDMA/uverbs: Expose the new GID query API to user space
...
17 Oct, 2020
9 commits
-
Pull kgdb updates from Daniel Thompson:
"A fairly modest set of changes for this cycle.Of particular note are an earlycon fix from Doug Anderson and my own
changes to get kgdb/kdb to honour the kprobe blocklist. The later
creates a safety rail that strongly encourages developers not to place
breakpoints in, for example, arch specific trap handling code.Also included are a couple of small fixes and tweaks: an API update,
eliminate a coverity dead code warning, improved handling of search
during multi-line printk and a couple of typo corrections"* tag 'kgdb-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux:
kdb: Fix pager search for multi-line strings
kernel: debug: Centralize dbg_[de]activate_sw_breakpoints
kgdb: Add NOKPROBE labels on the trap handler functions
kgdb: Honour the kprobe blocklist when setting breakpoints
kernel/debug: Fix spelling mistake in debug_core.c
kdb: Use newer api for tasklist scanning
kgdb: Make "kgdbcon" work properly with "kgdb_earlycon"
kdb: remove unnecessary null check of dbg_io_ops -
Pull MIPS updates from Thomas Bogendoerfer:
- removed support for PNX833x alias NXT_STB22x
- included Ingenic SoC support into generic MIPS kernels
- added support for new Ingenic SoCs
- converted workaround selection to use Kconfig
- replaced old boot mem functions by memblock_*
- enabled COP2 usage in kernel for Loongson64 to make use
of 16byte load/stores possible- cleanups and fixes
* tag 'mips_5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (92 commits)
MIPS: DEC: Restore bootmem reservation for firmware working memory area
MIPS: dec: fix section mismatch
bcm963xx_tag.h: fix duplicated word
mips: ralink: enable zboot support
MIPS: ingenic: Remove CPU_SUPPORTS_HUGEPAGES
MIPS: cpu-probe: remove MIPS_CPU_BP_GHIST option bit
MIPS: cpu-probe: introduce exclusive R3k CPU probe
MIPS: cpu-probe: move fpu probing/handling into its own file
MIPS: replace add_memory_region with memblock
MIPS: Loongson64: Clean up numa.c
MIPS: Loongson64: Select SMP in Kconfig to avoid build error
mips: octeon: Add Ubiquiti E200 and E220 boards
MIPS: SGI-IP28: disable use of ll/sc in kernel
MIPS: tx49xx: move tx4939_add_memory_regions into only user
MIPS: pgtable: Remove used PAGE_USERIO define
MIPS: alchemy: Share prom_init implementation
MIPS: alchemy: Fix build breakage, if TOUCHSCREEN_WM97XX is disabled
MIPS: process: include exec.h header in process.c
MIPS: process: Add prototype for function arch_dup_task_struct
MIPS: idle: Add prototype for function check_wait
... -
A build condition was missing around a compilation test, this compilation
test comes from the original test_bitfield code.And removed unnecessary code for this test.
Fixes: d2585f5164c2 ("lib: kunit: add bitfield test conversion to KUnit")
Reported-by: Stephen Rothwell
Signed-off-by: Vitor Massaru Iha
Link: https://lore.kernel.org/linux-next/20201015163056.56fcc835@canb.auug.org.au/
Reviewed-by: Brendan Higgins
Signed-off-by: Shuah Khan -
Merge more updates from Andrew Morton:
"155 patches.Subsystems affected by this patch series: mm (dax, debug, thp,
readahead, page-poison, util, memory-hotplug, zram, cleanups), misc,
core-kernel, get_maintainer, MAINTAINERS, lib, bitops, checkpatch,
binfmt, ramfs, autofs, nilfs, rapidio, panic, relay, kgdb, ubsan,
romfs, and fault-injection"* emailed patches from Andrew Morton : (155 commits)
lib, uaccess: add failure injection to usercopy functions
lib, include/linux: add usercopy failure capability
ROMFS: support inode blocks calculation
ubsan: introduce CONFIG_UBSAN_LOCAL_BOUNDS for Clang
sched.h: drop in_ubsan field when UBSAN is in trap mode
scripts/gdb/tasks: add headers and improve spacing format
scripts/gdb/proc: add struct mount & struct super_block addr in lx-mounts command
kernel/relay.c: drop unneeded initialization
panic: dump registers on panic_on_warn
rapidio: fix the missed put_device() for rio_mport_add_riodev
rapidio: fix error handling path
nilfs2: fix some kernel-doc warnings for nilfs2
autofs: harden ioctl table
ramfs: fix nommu mmap with gaps in the page cache
mm: remove the now-unnecessary mmget_still_valid() hack
mm/gup: take mmap_lock in get_dump_page()
binfmt_elf, binfmt_elf_fdpic: use a VMA list snapshot
coredump: rework elf/elf_fdpic vma_dump_size() into common helper
coredump: refactor page range dumping into common helper
coredump: let dump_emit() bail out on short writes
... -
To test fault-tolerance of user memory access functions, introduce fault
injection to usercopy functions.If a failure is expected return either -EFAULT or the total amount of
bytes that were not copied.Signed-off-by: Albert van der Linde
Signed-off-by: Andrew Morton
Reviewed-by: Akinobu Mita
Reviewed-by: Alexander Potapenko
Cc: Al Viro
Cc: Andrey Konovalov
Cc: Arnd Bergmann
Cc: Borislav Petkov
Cc: Dmitry Vyukov
Cc: "H. Peter Anvin"
Cc: Ingo Molnar
Cc: Jonathan Corbet
Cc: Marco Elver
Cc: Peter Zijlstra (Intel)
Cc: Thomas Gleixner
Cc: Christoph Hellwig
Link: http://lkml.kernel.org/r/20200831171733.955393-3-alinde@google.com
Signed-off-by: Linus Torvalds -
Patch series "add fault injection to user memory access", v3.
The goal of this series is to improve testing of fault-tolerance in usages
of user memory access functions, by adding support for fault injection.syzkaller/syzbot are using the existing fault injection modes and will use
this particular feature also.The first patch adds failure injection capability for usercopy functions.
The second changes usercopy functions to use this new failure capability
(copy_from_user, ...). The third patch adds get/put/clear_user failures
to x86.This patch (of 3):
Add a failure injection capability to improve testing of fault-tolerance
in usages of user memory access functions.Add CONFIG_FAULT_INJECTION_USERCOPY to enable faults in usercopy
functions. The should_fail_usercopy function is to be called by these
functions (copy_from_user, get_user, ...) in order to fail or not.Signed-off-by: Albert van der Linde
Signed-off-by: Andrew Morton
Reviewed-by: Akinobu Mita
Reviewed-by: Alexander Potapenko
Cc: Borislav Petkov
Cc: Ingo Molnar
Cc: Jonathan Corbet
Cc: Thomas Gleixner
Cc: Arnd Bergmann
Cc: Peter Zijlstra (Intel)
Cc: "H. Peter Anvin"
Cc: Al Viro
Cc: Andrey Konovalov
Cc: Dmitry Vyukov
Cc: Marco Elver
Cc: Christoph Hellwig
Link: http://lkml.kernel.org/r/20200831171733.955393-1-alinde@google.com
Link: http://lkml.kernel.org/r/20200831171733.955393-2-alinde@google.com
Signed-off-by: Linus Torvalds -
When the kernel is compiled with Clang, -fsanitize=bounds expands to
-fsanitize=array-bounds and -fsanitize=local-bounds.Enabling -fsanitize=local-bounds with Clang has the unfortunate
side-effect of inserting traps; this goes back to its original intent,
which was as a hardening and not a debugging feature [1]. The same
feature made its way into -fsanitize=bounds, but the traps remained. For
that reason, -fsanitize=bounds was split into 'array-bounds' and
'local-bounds' [2].Since 'local-bounds' doesn't behave like a normal sanitizer, enable it
with Clang only if trapping behaviour was requested by
CONFIG_UBSAN_TRAP=y.Add the UBSAN_BOUNDS_LOCAL config to Kconfig.ubsan to enable the
'local-bounds' option by default when UBSAN_TRAP is enabled.[1] http://lists.llvm.org/pipermail/llvm-dev/2012-May/049972.html
[2] http://lists.llvm.org/pipermail/cfe-commits/Week-of-Mon-20131021/091536.htmlSuggested-by: Marco Elver
Signed-off-by: George Popescu
Signed-off-by: Andrew Morton
Reviewed-by: David Brazdil
Reviewed-by: Marco Elver
Cc: Masahiro Yamada
Cc: Michal Marek
Cc: Nathan Chancellor
Cc: Nick Desaulniers
Cc: Kees Cook
Cc: Dmitry Vyukov
Cc: Arnd Bergmann
Cc: Peter Zijlstra
Link: https://lkml.kernel.org/r/20200922074330.2549523-1-georgepope@google.com
Signed-off-by: Linus Torvalds -
Whether crc32_be needs a lookup table is chosen based on CRC_LE_BITS.
Obviously, the _be function should be governed by the _BE_ define.This probably never pops up as it's hard to come up with a configuration
where CRC_BE_BITS isn't the same as CRC_LE_BITS and as nobody is using
bitwise CRC anyway.Fixes: 46c5801eaf86 ("crc32: bolt on crc32c")
Signed-off-by: Tobias Jordan
Signed-off-by: Andrew Morton
Cc: Krzysztof Kozlowski
Cc: Jonathan Corbet
Cc: Mauro Carvalho Chehab
Link: https://lkml.kernel.org/r/20200923182122.GA3338@agrajag.zerfleddert.de
Signed-off-by: Linus Torvalds -
This is supposed to return false on failure, not a negative error code.
Fixes: 170e38548b81 ("mm/hmm/test: use after free in dmirror_allocate_chunk()")
Signed-off-by: Dan Carpenter
Signed-off-by: Andrew Morton
Reviewed-by: Ralph Campbell
Cc: Jerome Glisse
Cc: Stephen Rothwell
Cc: Jason Gunthorpe
Cc: Dan Williams
Link: https://lkml.kernel.org/r/20201010200812.GA1886610@mwanda
Signed-off-by: Linus Torvalds
