diff options
| author | Jakub Kicinski <kuba@kernel.org> | 2022-12-08 16:07:53 -0800 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2022-12-08 18:19:59 -0800 |
| commit | 837e8ac871499d337212e2161c046f5adf1bad33 (patch) | |
| tree | 2d7bb495b5ce2bce04bf18afd6a57116391efabc /net/ipv6 | |
| parent | ff36c447e2330625066d193a25a8f94c1408d9d9 (diff) | |
| parent | 010b6761a9fc5006267d99abb6f9f196bf5d3d13 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
No conflicts.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/ipv6')
| -rw-r--r-- | net/ipv6/ip6_output.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c index e19507614f64..60fd91bb5171 100644 --- a/net/ipv6/ip6_output.c +++ b/net/ipv6/ip6_output.c @@ -920,6 +920,9 @@ int ip6_fragment(struct net *net, struct sock *sk, struct sk_buff *skb, if (err < 0) goto fail; + /* We prevent @rt from being freed. */ + rcu_read_lock(); + for (;;) { /* Prepare header of the next frame, * before previous one went down. */ @@ -943,6 +946,7 @@ int ip6_fragment(struct net *net, struct sock *sk, struct sk_buff *skb, if (err == 0) { IP6_INC_STATS(net, ip6_dst_idev(&rt->dst), IPSTATS_MIB_FRAGOKS); + rcu_read_unlock(); return 0; } @@ -950,6 +954,7 @@ int ip6_fragment(struct net *net, struct sock *sk, struct sk_buff *skb, IP6_INC_STATS(net, ip6_dst_idev(&rt->dst), IPSTATS_MIB_FRAGFAILS); + rcu_read_unlock(); return err; slow_path_clean: |