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| author | Cyril Hrubis <chrubis@suse.cz> | 2015-05-20 13:50:00 +0200 |
|---|---|---|
| committer | Andreas Schwab <schwab@suse.de> | 2015-07-07 12:13:50 +0200 |
| commit | c13e07830800dd95ca7684b3c473394c77059c97 (patch) | |
| tree | 6688377b329a6dc6167995e7ecf3b7202499f29a /misc | |
| parent | 6471190491435c6ee819232f3eb71ad9638563cc (diff) | |
| download | glibc-c13e07830800dd95ca7684b3c473394c77059c97.zip glibc-c13e07830800dd95ca7684b3c473394c77059c97.tar.gz glibc-c13e07830800dd95ca7684b3c473394c77059c97.tar.bz2 | |
Set errno to ENOMEM on overflow in sbrk (bug 18592)
Diffstat (limited to 'misc')
| -rw-r--r-- | misc/sbrk.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/misc/sbrk.c b/misc/sbrk.c index 87b5472..89ab9c4 100644 --- a/misc/sbrk.c +++ b/misc/sbrk.c @@ -47,10 +47,15 @@ __sbrk (intptr_t increment) return __curbrk; oldbrk = __curbrk; - if ((increment > 0 - ? ((uintptr_t) oldbrk + (uintptr_t) increment < (uintptr_t) oldbrk) - : ((uintptr_t) oldbrk < (uintptr_t) -increment)) - || __brk (oldbrk + increment) < 0) + if (increment > 0 + ? ((uintptr_t) oldbrk + (uintptr_t) increment < (uintptr_t) oldbrk) + : ((uintptr_t) oldbrk < (uintptr_t) -increment)) + { + __set_errno (ENOMEM); + return (void *) -1; + } + + if (__brk (oldbrk + increment) < 0) return (void *) -1; return oldbrk; |