diff options
| author | Florian Zumbiehl <florz@florz.de> | 2009-09-01 12:38:16 +0200 |
|---|---|---|
| committer | Kay Sievers <kay.sievers@vrfy.org> | 2009-09-01 12:38:16 +0200 |
| commit | 32ecabb15d76bd9db8f7d15dcd39807383a93934 (patch) | |
| tree | feeafc722a31102dda7aed9b64bf088097090164 /libudev/libudev-util.c | |
| parent | 9257ecfc191ede0029e3486fd50c85b080927d0b (diff) | |
util_resolve_sys_link(): fix possible buffer overflow
Diffstat (limited to 'libudev/libudev-util.c')
| -rw-r--r-- | libudev/libudev-util.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/libudev/libudev-util.c b/libudev/libudev-util.c index dcc4a0fd16..61cd963421 100644 --- a/libudev/libudev-util.c +++ b/libudev/libudev-util.c @@ -56,13 +56,13 @@ int util_resolve_sys_link(struct udev *udev, char *syspath, size_t size) { char link_target[UTIL_PATH_SIZE]; - int len; + ssize_t len; int i; int back; char *base; len = readlink(syspath, link_target, sizeof(link_target)); - if (len <= 0) + if (len <= 0 || len == (ssize_t)sizeof(link_target)) return -1; link_target[len] = '\0'; dbg(udev, "path link '%s' points to '%s'\n", syspath, link_target); |