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Arjun Shankar e53d85947f malloc: Simplify tst-free-errno munmap failure test 
The Linux specific test-case in tst-free-errno was backing up malloc
metadata for a large mmap'd block, overwriting the block with its own
mmap, then restoring malloc metadata and calling free to force an munmap
failure.  However, the backed up pages containing metadata can
occasionally be overlapped by the overwriting mmap, leading to a
metadata corruption.

This commit replaces this Linux specific test case with a simpler,
generic, three block allocation, expecting the kernel to coalesce the
VMAs, then cause a fragmentation to trigger the same failure.

Reviewed-by: Florian Weimer <fweimer@redhat.com>
 		2025-11-18 14:28:42 +01:00
..
Depend
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Makefile malloc: add tst-mxfast to hugetlb exclusion list 2025-08-29 13:22:19 -04:00
Versions
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alloc_buffer_alloc_array.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
alloc_buffer_allocate.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
alloc_buffer_copy_bytes.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
alloc_buffer_copy_string.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
alloc_buffer_create_failure.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
arena.c malloc: Do not call madvise if heap's oldsize >= THP size 2025-10-20 11:33:54 -03:00
dynarray-skeleton.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
dynarray.h Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
dynarray_at_failure.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
dynarray_emplace_enlarge.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
dynarray_finalize.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
dynarray_resize.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
dynarray_resize_clear.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
hooks.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
malloc-check.c Suppress -Wmaybe-uninitialized only for gcc 2025-10-21 09:24:05 -03:00
malloc-debug.c atomic: Remove atomic_forced_read 2025-10-08 12:59:30 +00:00
malloc-internal.h malloc: Improve malloc initialization 2025-05-12 16:10:28 +00:00
malloc.c malloc: Remove unused tcache_set_inactive 2025-10-29 12:53:53 -03:00
malloc.h Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
mallocbug.c
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mcheck-impl.c Cleanup some recently added whitespace. 2025-10-30 18:56:58 -07:00
mcheck-init.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
mcheck.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
mcheck.h Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
memusage.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
memusage.sh Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
memusagestat.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
morecore.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
mtrace-impl.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
mtrace.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
mtrace.pl Update copyright dates not handled by scripts/update-copyrights 2025-01-01 11:22:09 -08:00
obstack.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
obstack.h Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
reallocarray.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
scratch_buffer_grow.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
scratch_buffer_grow_preserve.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
scratch_buffer_set_array_size.c Update copyright dates with scripts/update-copyrights 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 Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
tst-aligned-alloc-random-thread-cross.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
tst-aligned-alloc-random-thread.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
tst-aligned-alloc-random.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
tst-aligned-alloc-static.c aligned_alloc: conform to C17 2023-05-08 16:40:10 -04:00
tst-aligned-alloc.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
tst-aligned_alloc-lib.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
tst-alloc_buffer.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
tst-calloc.c malloc: cleanup casts in tst-calloc 2025-01-25 05:34:05 +00:00
tst-compathooks-off.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
tst-compathooks-on.c
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tst-dynarray-at-fail.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
tst-dynarray-fail.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
tst-dynarray-shared.h Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
tst-dynarray.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
tst-free-errno.c malloc: Simplify tst-free-errno munmap failure test 2025-11-18 14:28:42 +01:00
tst-interpose-aux-nothread.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
tst-interpose-aux-thread.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
tst-interpose-aux.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
tst-interpose-aux.h Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
tst-interpose-nothread.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
tst-interpose-skeleton.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
tst-interpose-static-nothread.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
tst-interpose-static-thread.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
tst-interpose-thread.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
tst-mallinfo2.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
tst-malloc-alternate-path.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
tst-malloc-aux.h Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
tst-malloc-backtrace.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
tst-malloc-check.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
tst-malloc-fork-deadlock.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
tst-malloc-random.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
tst-malloc-stats-cancellation.c
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tst-malloc-tcache-leak.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
tst-malloc-thread-exit.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
tst-malloc-thread-fail.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
tst-malloc-too-large.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
tst-malloc-usable-tunables.c
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tst-malloc-usable.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
tst-malloc.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
tst-malloc_info.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
tst-mallocalign1.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
tst-mallocfork.c
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tst-mallocfork2.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
tst-mallocfork3.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
tst-mallocstate.c malloc: Remove dumped heap support 2025-09-19 13:11:56 +00:00
tst-mallopt.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
tst-memalign-2.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
tst-memalign-3.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
tst-memalign.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
tst-mtrace.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
tst-mtrace.sh Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
tst-mxfast.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
tst-obstack.c
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tst-posix_memalign.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
tst-pvalloc-fortify.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
tst-pvalloc.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
tst-realloc.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
tst-reallocarray.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
tst-safe-linking.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
tst-scratch_buffer.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
tst-tcfree1.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
tst-tcfree2.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
tst-tcfree3.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
tst-tcfree4.c malloc: Improved double free detection in the tcache 2025-05-12 11:58:30 +00:00
tst-trim1.c
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tst-valloc.c Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00