diff options
| author | pfg <pfg@FreeBSD.org> | 2016-06-03 21:37:24 +0000 |
|---|---|---|
| committer | pfg <pfg@FreeBSD.org> | 2016-06-03 21:37:24 +0000 |
| commit | 356a290b3ddb28e5a3a577d0bbc5307a6d39d3ef (patch) | |
| tree | e0fc9db09cbcd591373c5dc40d1527ad2cd2ebc8 /contrib/gcclibs/include/objalloc.h | |
| parent | 7e8741e191563206554511078725b2502d5aa3a9 (diff) | |
| download | FreeBSD-src-356a290b3ddb28e5a3a577d0bbc5307a6d39d3ef.zip FreeBSD-src-356a290b3ddb28e5a3a577d0bbc5307a6d39d3ef.tar.gz | |
libiberty: prevent integer overflow.
Take care of very old bug leading to heap-buffer overflow by
processing certain file headers via bfd binary.
PR: 200888
Obtained from: OpenBSD
MFC after: 2 weeks
Diffstat (limited to 'contrib/gcclibs/include/objalloc.h')
| -rw-r--r-- | contrib/gcclibs/include/objalloc.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/contrib/gcclibs/include/objalloc.h b/contrib/gcclibs/include/objalloc.h index 36772d1..e3cc7bb 100644 --- a/contrib/gcclibs/include/objalloc.h +++ b/contrib/gcclibs/include/objalloc.h @@ -1,5 +1,5 @@ /* objalloc.h -- routines to allocate memory for objects - Copyright 1997, 2001 Free Software Foundation, Inc. + Copyright 1997, 2001-2012 Free Software Foundation, Inc. Written by Ian Lance Taylor, Cygnus Solutions. This program is free software; you can redistribute it and/or modify it @@ -91,7 +91,7 @@ extern void *_objalloc_alloc (struct objalloc *, unsigned long); if (__len == 0) \ __len = 1; \ __len = (__len + OBJALLOC_ALIGN - 1) &~ (OBJALLOC_ALIGN - 1); \ - (__len <= __o->current_space \ + (__len != 0 && __len <= __o->current_space \ ? (__o->current_ptr += __len, \ __o->current_space -= __len, \ (void *) (__o->current_ptr - __len)) \ |
