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glibc/malloc
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Siddhesh Poyarekar c9188d3337 memalign: reinstate alignment overflow check (CVE-2026-0861) 
The change to cap valid sizes to PTRDIFF_MAX inadvertently dropped the
overflow check for alignment in memalign functions, _mid_memalign and
_int_memalign.  Reinstate the overflow check in _int_memalign, aligned
with the PTRDIFF_MAX change since that is directly responsible for the
CVE.  The missing _mid_memalign check is not relevant (and does not have
a security impact) and may need a different approach to fully resolve,
so it has been omitted.

CVE-Id: CVE-2026-0861
Vulnerable-Commit: 9bf8e29ca1
Reported-by: Igor Morgenstern, Aisle Research
Fixes: BZ #33796
Reviewed-by: Wilco Dijkstra <Wilco.Dijkstra@arm.com>
Signed-off-by: Siddhesh Poyarekar <siddhesh@gotplt.org>
2026-01-15 16:19:50 -05:00
..
alloc_buffer_alloc_array.c
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alloc_buffer_allocate.c
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alloc_buffer_copy_bytes.c
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alloc_buffer_copy_string.c
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alloc_buffer_create_failure.c
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arena.c
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2026-01-01 13:42:29 -08:00
Depend
added rt to malloc/Depend [BZ #27132]
2021-02-23 10:04:45 +01:00
dynarray_at_failure.c
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2026-01-01 13:42:29 -08:00
dynarray_emplace_enlarge.c
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dynarray_finalize.c
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dynarray_resize_clear.c
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dynarray_resize.c
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dynarray-skeleton.c
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dynarray.h
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hooks.c
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Makefile
malloc: Add tst-mallocfork to tests-exclude-threaded exception list
2026-01-15 17:00:08 +01:00
malloc-check.c
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malloc-debug.c
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malloc-internal.h
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2026-01-01 13:42:29 -08:00
malloc.c
memalign: reinstate alignment overflow check (CVE-2026-0861)
2026-01-15 16:19:50 -05:00
malloc.h
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2026-01-01 13:42:29 -08:00
mallocbug.c
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mcheck-impl.c
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mcheck-init.c
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mcheck.c
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mcheck.h
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memusage.c
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memusage.sh
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memusagestat.c
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morecore.c
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mtrace-impl.c
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mtrace.c
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mtrace.pl
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obstack.c
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obstack.h
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reallocarray.c
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scratch_buffer_grow_preserve.c
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scratch_buffer_grow.c
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scratch_buffer_set_array_size.c
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set-freeres.c
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thread-freeres.c
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tst-aligned_alloc-lib.c
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tst-aligned-alloc-random-thread-cross.c
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tst-aligned-alloc-random-thread.c
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tst-aligned-alloc-random.c
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2026-01-01 13:42:29 -08:00
tst-aligned-alloc-static.c
aligned_alloc: conform to C17
2023-05-08 16:40:10 -04:00
tst-aligned-alloc.c
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tst-alloc_buffer.c
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tst-calloc.c
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tst-compathooks-off.c
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tst-compathooks-on.c
Move malloc hooks into a compat DSO
2021-07-22 18:37:59 +05:30
tst-dynarray-at-fail.c
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tst-dynarray-fail.c
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tst-dynarray-shared.h
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tst-dynarray.c
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tst-free-aligned-sized-trace.c
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tst-free-aligned-sized.c
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tst-free-errno.c
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tst-free-sized-trace.c
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tst-free-sized.c
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tst-interpose-aux-nothread.c
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tst-interpose-aux-thread.c
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tst-interpose-aux.c
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tst-interpose-aux.h
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tst-interpose-nothread.c
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tst-interpose-skeleton.c
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tst-interpose-static-nothread.c
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tst-interpose-static-thread.c
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tst-interpose-thread.c
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tst-mallinfo2.c
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tst-malloc_info.c
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tst-malloc-alternate-path.c
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tst-malloc-aux.h
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tst-malloc-backtrace.c
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tst-malloc-check.c
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tst-malloc-fork-deadlock.c
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tst-malloc-random.c
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tst-malloc-stats-cancellation.c
malloc: Run tst-malloc-stats-cancellation via test-driver.c
2021-04-07 02:35:50 +02:00
tst-malloc-tcache-leak.c
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tst-malloc-thread-exit.c
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tst-malloc-thread-fail.c
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tst-malloc-too-large.c
memalign: reinstate alignment overflow check (CVE-2026-0861)
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tst-malloc-usable-tunables.c
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tst-malloc-usable.c
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tst-malloc.c
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tst-mallocalign1.c
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tst-mallocfork2.c
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tst-mallocfork3.c
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tst-mallocfork.c
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tst-mallocstate.c
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tst-mallopt.c
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tst-memalign-2.c
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tst-memalign-3.c
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tst-memalign.c
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tst-mtrace.c
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tst-mtrace.sh
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tst-obstack.c
Avoid -Wuse-after-free in tests [BZ #26779].
2022-01-26 10:38:23 -07:00
tst-posix_memalign.c
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tst-pvalloc-fortify.c
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tst-pvalloc.c
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tst-realloc.c
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tst-reallocarray.c
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tst-safe-linking.c
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tst-scratch_buffer.c
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tst-tcfree1.c
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tst-tcfree2.c
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tst-tcfree3.c
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tst-tcfree4.c
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tst-trim1.c
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tst-valloc.c
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Versions
malloc: add free_sized and free_aligned_sized from C23
2025-11-19 13:47:53 -03:00