diff options
| author | Eric Dumazet <edumazet@google.com> | 2026-05-19 19:32:48 +0000 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2026-05-20 19:00:36 -0700 |
| commit | e4bdef4d320b2fe73b8ebfc0cc0507fa9dc4a3b7 (patch) | |
| tree | fd8393dd46e81bd014cf7cb498695480397c77d7 /net/ipv4 | |
| parent | 7eb72c1e3984150c45f77aa4299f7c2598a68e9b (diff) | |
ipv4: use WARN_ON_ONCE() in ip_rt_bug()
It turns out ip_rt_bug() can be called more than expected.
syzbot will still panic (because of panic_on_warn=1), but non debug
kernels will no longer die while repeating stack traces on the console.
Fixes: c378a9c019cf ("ipv4: Give backtrace in ip_rt_bug().")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Reviewed-by: Jiayuan Chen <jiayuan.chen@linux.dev>
Link: https://patch.msgid.link/20260519193248.4018872-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/ipv4')
| -rw-r--r-- | net/ipv4/route.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv4/route.c b/net/ipv4/route.c index bc1296f0ea69..3d62d45d84bd 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -1272,7 +1272,7 @@ static int ip_rt_bug(struct net *net, struct sock *sk, struct sk_buff *skb) __func__, &ip_hdr(skb)->saddr, &ip_hdr(skb)->daddr, skb->dev ? skb->dev->name : "?"); kfree_skb(skb); - WARN_ON(1); + WARN_ON_ONCE(1); return 0; } |