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| author | Florian Weimer <fweimer@redhat.com> | 2015-12-29 20:32:35 +0100 |
|---|---|---|
| committer | Florian Weimer <fweimer@redhat.com> | 2015-12-29 20:32:35 +0100 |
| commit | 1bd5483e104c8bde6e61dc5e3f8a848bc861872d (patch) | |
| tree | 471878accbca82e41d5fc9d1ecafb2b28fc2b8cc /malloc/tst-realloc.c | |
| parent | b69b5b3e3e5a5cd9e693db1dc8c94e621561aa95 (diff) | |
| download | glibc-1bd5483e104c8bde6e61dc5e3f8a848bc861872d.tar.gz glibc-1bd5483e104c8bde6e61dc5e3f8a848bc861872d.tar.xz glibc-1bd5483e104c8bde6e61dc5e3f8a848bc861872d.zip | |
malloc: Test various special cases related to allocation failures
This test case exercises unusual code paths in allocation functions,
related to allocation failures. Specifically, the test can reveal
the following bugs:
(a) calloc returns non-zero memory on fallback to sysmalloc.
(b) calloc can self-deadlock because it fails to release
the arena lock on certain allocation failures.
(c) pvalloc can dereference a NULL arena pointer.
(a) and (b) appear specific to a faulty downstream backport.
(c) was fixed as part of commit 10ad46bc6526edc5c7afcc57112da96917ff3629.
The test for (a) was inspired by a reproducer supplied by Jeff Layton.
Diffstat (limited to 'malloc/tst-realloc.c')
0 files changed, 0 insertions, 0 deletions