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Missing ENOMEM in realloc_check wrapper (bug 27870)

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When MALLOC_CHECK_ is non-zero, the realloc hook missed to set errno to
ENOMEM when called with too big size.  Run the test tst-malloc-too-large
also with MALLOC_CHECK_=3 to catch that.
This commit is contained in:
Andreas Schwab 2021-05-17 14:00:19 +02:00
parent f4605e611a
commit c6b6b4f2c7
2 changed files with 5 additions and 2 deletions
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2
malloc/Makefile
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@ -72,7 +72,7 @@ test-srcs = tst-mtrace
# with MALLOC_CHECK_=3 because they expect a specific failure.
tests-exclude-mcheck = tst-mcheck tst-malloc-usable \
tst-interpose-nothread tst-interpose-static-nothread \
tst-interpose-static-thread tst-malloc-too-large \
tst-interpose-static-thread \
tst-mxfast tst-safe-linking
# Run all tests with MALLOC_CHECK_=3

5
malloc/hooks.c
View File

@ -321,7 +321,10 @@ realloc_check (void *oldmem, size_t bytes, const void *caller)
const INTERNAL_SIZE_T oldsize = chunksize (oldp);
if (!checked_request2size (rb, &chnb))
goto invert;
{
__set_errno (ENOMEM);
goto invert;
}
__libc_lock_lock (main_arena.mutex);