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[PATCH 4.4-cip 5/5] mm/page_poisoning.c: allow for zero poisoning
From: Laura Abbott <labbott@...>
commit 1414c7f4f7d72d138fff35f00151d15749b5beda upstream.
By default, page poisoning uses a poison value (0xaa) on free. If this
is changed to 0, the
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From: Laura Abbott <labbott@...>
commit 1414c7f4f7d72d138fff35f00151d15749b5beda upstream.
By default, page poisoning uses a poison value (0xaa) on free. If this
is changed to 0, the
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By
Ben Hutchings <ben.hutchings@...>
·
#100
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[PATCH 4.4-cip 00/23] Undefined Behaviour Sanititizer support
This is a backport of changes in 4.5 to add support for GCC's Undefined
Behaviour Sanitizer (UBSAN), and fixes for undefined behaviour that it
has found (that are not already in 4.4.30).
UBSAN
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This is a backport of changes in 4.5 to add support for GCC's Undefined
Behaviour Sanitizer (UBSAN), and fixes for undefined behaviour that it
has found (that are not already in 4.4.30).
UBSAN
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By
Ben Hutchings <ben.hutchings@...>
·
#101
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[PATCH 4.4-cip 01/23] UBSAN: run-time undefined behavior sanity checker
From: Andrey Ryabinin <aryabinin@...>
commit c6d308534aef6c99904bf5862066360ae067abc4 upstream.
UBSAN uses compile-time instrumentation to catch undefined behavior
(UB). Compiler inserts
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From: Andrey Ryabinin <aryabinin@...>
commit c6d308534aef6c99904bf5862066360ae067abc4 upstream.
UBSAN uses compile-time instrumentation to catch undefined behavior
(UB). Compiler inserts
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By
Ben Hutchings <ben.hutchings@...>
·
#102
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[PATCH 4.4-cip 02/23] ubsan: cosmetic fix to Kconfig text
From: Yang Shi <yang.shi@...>
commit 7707535ab95e2231b6d7f2bfb4f27558e83c4dc2 upstream.
When enabling UBSAN_SANITIZE_ALL, the kernel image size gets increased
significantly (~3x). So, it
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From: Yang Shi <yang.shi@...>
commit 7707535ab95e2231b6d7f2bfb4f27558e83c4dc2 upstream.
When enabling UBSAN_SANITIZE_ALL, the kernel image size gets increased
significantly (~3x). So, it
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By
Ben Hutchings <ben.hutchings@...>
·
#103
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[PATCH 4.4-cip 03/23] PM / sleep: declare __tracedata symbols as char[] rather than char
From: Eric Biggers <ebiggers3@...>
commit f97238373b8662a6d580e204df2e7bcbfa43e27a upstream.
Accessing more than one byte from a symbol declared simply 'char' is undefined
behavior, as
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From: Eric Biggers <ebiggers3@...>
commit f97238373b8662a6d580e204df2e7bcbfa43e27a upstream.
Accessing more than one byte from a symbol declared simply 'char' is undefined
behavior, as
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By
Ben Hutchings <ben.hutchings@...>
·
#104
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[PATCH 4.4-cip 04/23] x86/microcode/intel: Change checksum variables to u32
From: Chris Bainbridge <chris.bainbridge@...>
commit bc864af13f34d19c911f5691d87bdacc9ce109f5 upstream.
Microcode checksum verification should be done using unsigned 32-bit
values otherwise
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From: Chris Bainbridge <chris.bainbridge@...>
commit bc864af13f34d19c911f5691d87bdacc9ce109f5 upstream.
Microcode checksum verification should be done using unsigned 32-bit
values otherwise
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By
Ben Hutchings <ben.hutchings@...>
·
#105
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[PATCH 4.4-cip 05/23] mm/page-writeback: fix dirty_ratelimit calculation
From: Andrey Ryabinin <aryabinin@...>
commit d59b1087a98e402ed9a7cc577f4da435f9a555f5 upstream.
Calculation of dirty_ratelimit sometimes is not correct. E.g. initial
values of
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From: Andrey Ryabinin <aryabinin@...>
commit d59b1087a98e402ed9a7cc577f4da435f9a555f5 upstream.
Calculation of dirty_ratelimit sometimes is not correct. E.g. initial
values of
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By
Ben Hutchings <ben.hutchings@...>
·
#106
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[PATCH 4.4-cip 06/23] perf/core: Fix Undefined behaviour in rb_alloc()
From: Peter Zijlstra <peterz@...>
commit 8184059e93c200757f5c0805dae0f14e880eab5d upstream.
Sasha reported:
[ 3494.030114] UBSAN: Undefined behaviour in
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From: Peter Zijlstra <peterz@...>
commit 8184059e93c200757f5c0805dae0f14e880eab5d upstream.
Sasha reported:
[ 3494.030114] UBSAN: Undefined behaviour in
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By
Ben Hutchings <ben.hutchings@...>
·
#107
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[PATCH 4.4-cip 07/23] ubsan: fix tree-wide -Wmaybe-uninitialized false positives
From: Andrey Ryabinin <aryabinin@...>
commit dde5cf39d4d2cce71f2997c37210dd624d0e4bf6 upstream.
-fsanitize=* options makes GCC less smart than usual and increase number
of
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From: Andrey Ryabinin <aryabinin@...>
commit dde5cf39d4d2cce71f2997c37210dd624d0e4bf6 upstream.
-fsanitize=* options makes GCC less smart than usual and increase number
of
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By
Ben Hutchings <ben.hutchings@...>
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#108
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[PATCH 4.4-cip 08/23] mm/filemap: generic_file_read_iter(): check for zero reads unconditionally
From: Nicolai Stange <nicstange@...>
commit e7080a439a6f507abbc860847c33efc39b5c1c6d upstream.
If
- generic_file_read_iter() gets called with a zero read length,
- the read offset is at a
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From: Nicolai Stange <nicstange@...>
commit e7080a439a6f507abbc860847c33efc39b5c1c6d upstream.
If
- generic_file_read_iter() gets called with a zero read length,
- the read offset is at a
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By
Ben Hutchings <ben.hutchings@...>
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#109
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[PATCH 4.4-cip 09/23] perf/x86/amd: Set the size of event map array to PERF_COUNT_HW_MAX
From: Adam Borowski <kilobyte@...>
commit 0a25556f84d5f79e68e9502bb1f32a43377ab2bf upstream.
The entry for PERF_COUNT_HW_REF_CPU_CYCLES is not used on AMD, but is
referenced by
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From: Adam Borowski <kilobyte@...>
commit 0a25556f84d5f79e68e9502bb1f32a43377ab2bf upstream.
The entry for PERF_COUNT_HW_REF_CPU_CYCLES is not used on AMD, but is
referenced by
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By
Ben Hutchings <ben.hutchings@...>
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#110
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[PATCH 4.4-cip 10/23] drm/radeon: don't include RADEON_HPD_NONE in HPD IRQ enable bitsets
From: Nicolai Stange <nicstange@...>
commit b2c0cbd657173f024138d6421774007690ceeffd upstream.
The values of all but the RADEON_HPD_NONE members of the radeon_hpd_id
enum transform 1:1 into
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From: Nicolai Stange <nicstange@...>
commit b2c0cbd657173f024138d6421774007690ceeffd upstream.
The values of all but the RADEON_HPD_NONE members of the radeon_hpd_id
enum transform 1:1 into
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By
Ben Hutchings <ben.hutchings@...>
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#111
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[PATCH 4.4-cip 11/23] btrfs: fix int32 overflow in shrink_delalloc().
From: Adam Borowski <kilobyte@...>
commit 8eb0dfdbda3f56bf7d248ed87fcc383df114ecbb upstream.
UBSAN: Undefined behaviour in fs/btrfs/extent-tree.c:4623:21
signed integer overflow:
10808 *
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From: Adam Borowski <kilobyte@...>
commit 8eb0dfdbda3f56bf7d248ed87fcc383df114ecbb upstream.
UBSAN: Undefined behaviour in fs/btrfs/extent-tree.c:4623:21
signed integer overflow:
10808 *
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By
Ben Hutchings <ben.hutchings@...>
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#112
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[PATCH 4.4-cip 12/23] blk-mq: fix undefined behaviour in order_to_size()
From: Bartlomiej Zolnierkiewicz <b.zolnierkie@...>
commit b3a834b1596ac668df206aa2bb1f191c31f5f5e4 upstream.
When this_order variable in blk_mq_init_rq_map() becomes zero
the code
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From: Bartlomiej Zolnierkiewicz <b.zolnierkie@...>
commit b3a834b1596ac668df206aa2bb1f191c31f5f5e4 upstream.
When this_order variable in blk_mq_init_rq_map() becomes zero
the code
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By
Ben Hutchings <ben.hutchings@...>
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#113
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[PATCH 4.4-cip 13/23] batman-adv: Fix integer overflow in batadv_iv_ogm_calc_tq
From: Sven Eckelmann <sven.eckelmann@...>
commit d285f52cc0f23564fd61976d43fd5b991b4828f6 upstream.
The undefined behavior sanatizer detected an signed integer overflow in a
setup with
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From: Sven Eckelmann <sven.eckelmann@...>
commit d285f52cc0f23564fd61976d43fd5b991b4828f6 upstream.
The undefined behavior sanatizer detected an signed integer overflow in a
setup with
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By
Ben Hutchings <ben.hutchings@...>
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#114
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[PATCH 4.4-cip 14/23] signal: move the "sig < SIGRTMIN" check into siginmask(sig)
From: Oleg Nesterov <oleg@...>
commit 5c8ccefdf46c5f87d87b694c7fbc04941c2c99a5 upstream.
All the users of siginmask() must ensure that sig < SIGRTMIN. sig_fatal()
doesn't and this is
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From: Oleg Nesterov <oleg@...>
commit 5c8ccefdf46c5f87d87b694c7fbc04941c2c99a5 upstream.
All the users of siginmask() must ensure that sig < SIGRTMIN. sig_fatal()
doesn't and this is
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By
Ben Hutchings <ben.hutchings@...>
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#115
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[PATCH 4.4-cip 15/23] mmc: dw_mmc: remove UBSAN warning in dw_mci_setup_bus()
From: Seung-Woo Kim <sw0312.kim@...>
commit 65257a0deed5aee66b4e3708944f0be62a64cabc upstream.
This patch removes following UBSAN warnings in dw_mci_setup_bus().
UBSAN: Undefined
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From: Seung-Woo Kim <sw0312.kim@...>
commit 65257a0deed5aee66b4e3708944f0be62a64cabc upstream.
This patch removes following UBSAN warnings in dw_mci_setup_bus().
UBSAN: Undefined
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By
Ben Hutchings <ben.hutchings@...>
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#116
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[PATCH 4.4-cip 16/23] UBSAN: fix typo in format string
From: Nicolas Iooss <nicolas.iooss_linux@...>
commit 901d805c33fc4c029fc6b2d94ee5fb7d30278045 upstream.
handle_object_size_mismatch() used %pk to format a kernel pointer with
pr_err(). This
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From: Nicolas Iooss <nicolas.iooss_linux@...>
commit 901d805c33fc4c029fc6b2d94ee5fb7d30278045 upstream.
handle_object_size_mismatch() used %pk to format a kernel pointer with
pr_err(). This
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By
Ben Hutchings <ben.hutchings@...>
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#117
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[PATCH 4.4-cip 17/23] rhashtable: fix shift by 64 when shrinking
From: Vegard Nossum <vegard.nossum@...>
commit 12311959ecf8a3a64676c01b62ce67a0c5f0fd49 upstream.
I got this:
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From: Vegard Nossum <vegard.nossum@...>
commit 12311959ecf8a3a64676c01b62ce67a0c5f0fd49 upstream.
I got this:
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By
Ben Hutchings <ben.hutchings@...>
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#118
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[PATCH 4.4-cip 18/23] time: Avoid undefined behaviour in ktime_add_safe()
From: Vegard Nossum <vegard.nossum@...>
commit 979515c5645830465739254abc1b1648ada41518 upstream.
I ran into this:
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From: Vegard Nossum <vegard.nossum@...>
commit 979515c5645830465739254abc1b1648ada41518 upstream.
I ran into this:
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By
Ben Hutchings <ben.hutchings@...>
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#119
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