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| author | Ulrich Drepper <drepper@redhat.com> | 2005-10-13 04:48:35 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2005-10-13 04:48:35 +0000 |
| commit | bf58906631af8fe0d57625988b1d003cc09ef01d (patch) | |
| tree | bece252e69676134a5c51316326d8d3821c12a47 /malloc | |
| parent | 04ec80e410b4efb0576a2ffd0d2f29ed1fdac451 (diff) | |
| download | glibc-bf58906631af8fe0d57625988b1d003cc09ef01d.tar glibc-bf58906631af8fe0d57625988b1d003cc09ef01d.tar.gz glibc-bf58906631af8fe0d57625988b1d003cc09ef01d.tar.bz2 glibc-bf58906631af8fe0d57625988b1d003cc09ef01d.zip | |
* malloc/malloc.c (_int_free): Fail if block size is obviously wrong.
Diffstat (limited to 'malloc')
| -rw-r--r-- | malloc/malloc.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/malloc/malloc.c b/malloc/malloc.c index a8bc76739f..4ea35254bb 100644 --- a/malloc/malloc.c +++ b/malloc/malloc.c @@ -4278,6 +4278,12 @@ _int_free(mstate av, Void_t* mem) malloc_printerr (check_action, errstr, mem); return; } + /* We know that each chunk is at least MINSIZE bytes in size. */ + if (__builtin_expect (size < MINSIZE, 0)) + { + errstr = "free(): invalid size"; + goto errout; + } check_inuse_chunk(av, p); |