diff options
| author | Michael Shalayeff <mickey@cvs.openbsd.org> | 2007-02-07 10:20:41 +0000 |
|---|---|---|
| committer | Michael Shalayeff <mickey@cvs.openbsd.org> | 2007-02-07 10:20:41 +0000 |
| commit | 78f7807e3b4248f4761ccb78b73fceebae689d3b (patch) | |
| tree | 6da4de942d4011d4f67c4648d58fadf0f9cf2b44 /usr.bin/nm/elf.c | |
| parent | 80cb4f03378b2fdb17df1c8a7a522aa397c2ee04 (diff) | |
check st_name validity also check for overflow and not only for zero; found by Charles Longeau <chl@tuxfamily.org>
Diffstat (limited to 'usr.bin/nm/elf.c')
| -rw-r--r-- | usr.bin/nm/elf.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/usr.bin/nm/elf.c b/usr.bin/nm/elf.c index cc75a17f410..888f2ffe111 100644 --- a/usr.bin/nm/elf.c +++ b/usr.bin/nm/elf.c @@ -1,4 +1,4 @@ -/* $OpenBSD: elf.c,v 1.14 2006/09/30 14:34:13 kettenis Exp $ */ +/* $OpenBSD: elf.c,v 1.15 2007/02/07 10:20:40 mickey Exp $ */ /* * Copyright (c) 2003 Michael Shalayeff @@ -27,7 +27,7 @@ */ #ifndef lint -static const char rcsid[] = "$OpenBSD: elf.c,v 1.14 2006/09/30 14:34:13 kettenis Exp $"; +static const char rcsid[] = "$OpenBSD: elf.c,v 1.15 2007/02/07 10:20:40 mickey Exp $"; #endif /* not lint */ #include <sys/param.h> @@ -503,7 +503,8 @@ elf_symloadx(const char *name, FILE *fp, off_t foff, Elf_Ehdr *eh, elf_fix_sym(eh, &sbuf); - if (!sbuf.st_name) + if (!sbuf.st_name || + sbuf.st_name > *pstabsize) continue; elf2nlist(&sbuf, eh, shdr, shstr, np); |