From 6ac5943bdd5ac5bb8c22b99f5a1d5907ebbcae2b Mon Sep 17 00:00:00 2001 From: Phil Sutter Date: Thu, 17 Aug 2017 19:09:27 +0200 Subject: [PATCH] ipvrf: Fix error path of vrf_switch() Apart from trying to close(-1), this also leaked memory. Signed-off-by: Phil Sutter --- ip/ipvrf.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/ip/ipvrf.c b/ip/ipvrf.c index 0094cf85..e6fad32a 100644 --- a/ip/ipvrf.c +++ b/ip/ipvrf.c @@ -372,12 +372,12 @@ static int vrf_switch(const char *name) /* -1 on length to add '/' to the end */ if (ipvrf_get_netns(netns, sizeof(netns) - 1) < 0) - return -1; + goto out; if (vrf_path(vpath, sizeof(vpath)) < 0) { fprintf(stderr, "Failed to get base cgroup path: %s\n", strerror(errno)); - return -1; + goto out; } /* if path already ends in netns then don't add it again */ @@ -428,13 +428,14 @@ static int vrf_switch(const char *name) snprintf(pid, sizeof(pid), "%d", getpid()); if (write(fd, pid, strlen(pid)) < 0) { fprintf(stderr, "Failed to join cgroup\n"); - goto out; + goto out2; } rc = 0; +out2: + close(fd); out: free(mnt); - close(fd); return rc; }