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| author | Willem de Bruijn <willemb@google.com> | 2020-11-26 10:12:20 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-12-08 10:42:00 +0100 |
| commit | 3f7cf0545e037e62ca5522005fc860bfe994b3f0 (patch) | |
| tree | d7dad8de89d5327cc0f4b4be770642bcef57d404 /net | |
| parent | d9aec3148d1e34135cc7920ad50e7dd93f07aef1 (diff) | |
| download | linux-stable-3f7cf0545e037e62ca5522005fc860bfe994b3f0.tar.gz linux-stable-3f7cf0545e037e62ca5522005fc860bfe994b3f0.tar.bz2 linux-stable-3f7cf0545e037e62ca5522005fc860bfe994b3f0.zip | |
sock: set sk_err to ee_errno on dequeue from errq
[ Upstream commit 985f7337421a811cb354ca93882f943c8335a6f5 ]
When setting sk_err, set it to ee_errno, not ee_origin.
Commit f5f99309fa74 ("sock: do not set sk_err in
sock_dequeue_err_skb") disabled updating sk_err on errq dequeue,
which is correct for most error types (origins):
- sk->sk_err = err;
Commit 38b257938ac6 ("sock: reset sk_err when the error queue is
empty") reenabled the behavior for IMCP origins, which do require it:
+ if (icmp_next)
+ sk->sk_err = SKB_EXT_ERR(skb_next)->ee.ee_origin;
But read from ee_errno.
Fixes: 38b257938ac6 ("sock: reset sk_err when the error queue is empty")
Reported-by: Ayush Ranjan <ayushranjan@google.com>
Signed-off-by: Willem de Bruijn <willemb@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Link: https://lore.kernel.org/r/20201126151220.2819322-1-willemdebruijn.kernel@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net')
| -rw-r--r-- | net/core/skbuff.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/core/skbuff.c b/net/core/skbuff.c index 2b48cb0cc684..b2159261676d 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -4555,7 +4555,7 @@ struct sk_buff *sock_dequeue_err_skb(struct sock *sk) if (skb && (skb_next = skb_peek(q))) { icmp_next = is_icmp_err_skb(skb_next); if (icmp_next) - sk->sk_err = SKB_EXT_ERR(skb_next)->ee.ee_origin; + sk->sk_err = SKB_EXT_ERR(skb_next)->ee.ee_errno; } spin_unlock_irqrestore(&q->lock, flags); |