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-rw-r--r--udev/udev-node.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/udev/udev-node.c b/udev/udev-node.c
index ceb1d52ea7..5c1b04b86c 100644
--- a/udev/udev-node.c
+++ b/udev/udev-node.c
@@ -163,8 +163,8 @@ static int node_symlink(struct udev *udev, const char *node, const char *slink)
int len;
dbg(udev, "found existing symlink '%s'\n", slink);
- len = readlink(slink, buf, sizeof(buf) - 1);
- if (len > 0) {
+ len = readlink(slink, buf, sizeof(buf));
+ if (len > 0 && len < (int)sizeof(buf)) {
buf[len] = '\0';
if (strcmp(target, buf) == 0) {
info(udev, "preserve already existing symlink '%s' to '%s'\n",