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| author | Ulrich Drepper <drepper@redhat.com> | 2004-09-10 19:56:41 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2004-09-10 19:56:41 +0000 |
| commit | 3e00177e5a53c83916f8e0edc6d77d8c2a7fdbfb (patch) | |
| tree | bbb50c2d43dcd9bd30ca863155de31bf3c807f02 /malloc/malloc.c | |
| parent | 181742f8041aef5adc85da67d96681a32ef9eb00 (diff) | |
| download | glibc-3e00177e5a53c83916f8e0edc6d77d8c2a7fdbfb.tar.gz glibc-3e00177e5a53c83916f8e0edc6d77d8c2a7fdbfb.tar.xz glibc-3e00177e5a53c83916f8e0edc6d77d8c2a7fdbfb.zip | |
nt_free): Only do arena boundary check for contiguous arenas.
Diffstat (limited to 'malloc/malloc.c')
| -rw-r--r-- | malloc/malloc.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/malloc/malloc.c b/malloc/malloc.c index 0d0990cc35..665d7a4b3e 100644 --- a/malloc/malloc.c +++ b/malloc/malloc.c @@ -4229,8 +4229,9 @@ _int_free(mstate av, Void_t* mem) if (__builtin_expect (p == av->top, 0)) goto double_free; /* Or whether the next chunk is beyond the boundaries of the arena. */ - if (__builtin_expect ((char *) nextchunk >= ((char *) av->top - + chunksize(av->top)), 0)) + if (__builtin_expect (contiguous (av) + && (char *) nextchunk + >= ((char *) av->top + chunksize(av->top)), 0)) goto double_free; /* Or whether the block is actually not marked used. */ if (__builtin_expect (!prev_inuse(nextchunk), 0)) |