diff options
| -rw-r--r-- | src/basic/socket-util.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/basic/socket-util.c b/src/basic/socket-util.c index 8267988ad9..06387bdfd6 100644 --- a/src/basic/socket-util.c +++ b/src/basic/socket-util.c @@ -736,6 +736,11 @@ bool ifname_valid_full(const char *p, IfnameValidFlags flags) { if (dot_or_dot_dot(p)) return false; + /* Let's refuse "all" and "default" as interface name, to avoid collisions with the special sysctl + * directories /proc/sys/net/{ipv4,ipv6}/conf/{all,default} */ + if (STR_IN_SET(p, "all", "default")) + return false; + for (const char *t = p; *t; t++) { if ((unsigned char) *t >= 127U) return false; |