diff options
| author |   tedu <tedu@openbsd.org> | 2015-12-10 18:06:06 +0000 |
|---|---|---|
| committer | tedu <tedu@openbsd.org> | 2015-12-10 18:06:06 +0000 |
| commit | febce5fc05165f40665c1c55353ecf49583bf253 (patch) | |
| tree | 517225d583e852afad5162be573ecc2361aa60e1 /lib/libc/stdlib/icdb.c | |
| parent | minor changes, mostly whitespace, from unbound 1.5.7 (diff) | |
| download | wireguard-openbsd-febce5fc05165f40665c1c55353ecf49583bf253.tar.xz wireguard-openbsd-febce5fc05165f40665c1c55353ecf49583bf253.zip | |
tiny sanity check on file size
Diffstat (limited to 'lib/libc/stdlib/icdb.c')
| -rw-r--r-- | lib/libc/stdlib/icdb.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/libc/stdlib/icdb.c b/lib/libc/stdlib/icdb.c index 16d5300ab3d..e33a043795f 100644 --- a/lib/libc/stdlib/icdb.c +++ b/lib/libc/stdlib/icdb.c @@ -1,4 +1,4 @@ -/* $OpenBSD: icdb.c,v 1.3 2015/11/25 15:49:50 guenther Exp $ */ +/* $OpenBSD: icdb.c,v 1.4 2015/12/10 18:06:06 tedu Exp $ */ /* * Copyright (c) 2015 Ted Unangst <tedu@openbsd.org> * @@ -162,6 +162,8 @@ icdb_open(const char *name, int flags, uint32_t version) return NULL; if (fstat(fd, &sb) != 0) goto fail; + if (sb.st_size < sizeof(struct icdbinfo)) + goto fail; ptr = mmap(NULL, sb.st_size, PROT_READ | ((flags & O_RDWR) ? PROT_WRITE : 0), MAP_SHARED, fd, 0); if (ptr == MAP_FAILED) |