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glibc/malloc
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Ben Kallus 4cf2d86936 malloc: Add integrity check to largebin nextsizes 
If attacker overwrites the bk_nextsize link in the first chunk of a
largebin that later has a smaller chunk inserted into it, malloc will
write a heap pointer into an attacker-controlled address [0].

This patch adds an integrity check to mitigate this attack.

[0]: https://github.com/shellphish/how2heap/blob/master/glibc_2.39/large_bin_attack.c

Signed-off-by: Ben Kallus <benjamin.p.kallus.gr@dartmouth.edu>
Reviewed-by: DJ Delorie <dj@redhat.com>
2025-03-03 18:31:27 -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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2025-01-01 11:22:09 -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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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
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malloc-check.c
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malloc-debug.c
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malloc-internal.h
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malloc.c
malloc: Add integrity check to largebin nextsizes
2025-03-03 18:31:27 -05:00
malloc.h
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mallocbug.c
Reformat malloc to gnu style.
2014-01-02 09:40:10 +01:00
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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2025-01-01 11:22:09 -08:00
set-freeres.c
elf: Merge __dl_libc_freemem into __rtld_libc_freeres
2025-02-02 20:10:09 +01:00
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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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
malloc: cleanup casts in tst-calloc
2025-01-25 05:34:05 +00:00
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-errno.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
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tst-malloc-usable-tunables.c
Initialize tunable list with the GLIBC_TUNABLES environment variable
2016-12-31 23:49:24 +05:30
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
Fix malloc tests build with GCC 10.
2019-06-10 22:12:08 +00:00
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-mxfast.c
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tst-obstack.c
Avoid -Wuse-after-free in tests [BZ #26779].
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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-trim1.c
* malloc/tst-trim1.c: New file.
2007-12-16 22:57:57 +00:00
tst-valloc.c
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Versions
Remove unused scratch_buffer_dupfree
2022-10-28 18:43:58 +01:00