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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-08 03:43:31 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-08 03:43:31 +0000 |
| commit | 1327913aeadf5737e7ebf158f93632d6df2eba1d (patch) | |
| tree | 2ca5c2a3aa381788eca2580f72a2d5c60934b28a /net/ipv6/ipv6_sockglue.c | |
| parent | Adding upstream version 4.19.260. (diff) | |
| download | linux-1327913aeadf5737e7ebf158f93632d6df2eba1d.tar.xz linux-1327913aeadf5737e7ebf158f93632d6df2eba1d.zip | |
Adding upstream version 4.19.269.upstream/4.19.269
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'net/ipv6/ipv6_sockglue.c')
| -rw-r--r-- | net/ipv6/ipv6_sockglue.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c index 4e1da6cb9..4f958d24f 100644 --- a/net/ipv6/ipv6_sockglue.c +++ b/net/ipv6/ipv6_sockglue.c @@ -166,6 +166,12 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname, rtnl_lock(); lock_sock(sk); + /* Another thread has converted the socket into IPv4 with + * IPV6_ADDRFORM concurrently. + */ + if (unlikely(sk->sk_family != AF_INET6)) + goto unlock; + switch (optname) { case IPV6_ADDRFORM: @@ -913,6 +919,7 @@ pref_skip_coa: break; } +unlock: release_sock(sk); if (needs_rtnl) rtnl_unlock(); |