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-rw-r--r--src/update_walk.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/src/update_walk.c b/src/update_walk.c
index 615bf41a8..8554e8f3c 100644
--- a/src/update_walk.c
+++ b/src/update_walk.c
@@ -283,12 +283,20 @@ skip_symlink(const struct directory *directory, const char *utf8_name)
return true;
char buffer[MPD_PATH_MAX];
- ssize_t ret = readlink(path_fs, buffer, sizeof(buffer));
+ ssize_t length = readlink(path_fs, buffer, sizeof(buffer));
g_free(path_fs);
- if (ret < 0)
+ if (length < 0)
/* don't skip if this is not a symlink */
return errno != EINVAL;
+ if ((size_t)length >= sizeof(buffer))
+ /* skip symlinks when the buffer is too small for the
+ link target */
+ return true;
+
+ /* null-terminate the buffer, because readlink() will not */
+ buffer[length] = 0;
+
if (!follow_inside_symlinks && !follow_outside_symlinks) {
/* ignore all symlinks */
return true;