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Diffstat (limited to '')
| -rw-r--r-- | src/ipc-linux.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/ipc-linux.h b/src/ipc-linux.h index 5883ffe..d29c0c5 100644 --- a/src/ipc-linux.h +++ b/src/ipc-linux.h @@ -479,6 +479,12 @@ static int kernel_get_device(struct wgdevice **device, const char *iface) struct nlmsghdr *nlh; struct mnlg_socket *nlg; + /* libmnl doesn't check the buffer size, so enforce that before using. */ + if (strlen(iface) >= IFNAMSIZ) { + errno = ENAMETOOLONG; + return -ENAMETOOLONG; + } + try_again: ret = 0; *device = calloc(1, sizeof(**device)); |