diff options
Diffstat (limited to 'net/ipv6/ipv6_sockglue.c')
| -rw-r--r-- | net/ipv6/ipv6_sockglue.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c index e4bdb09c5586..9c3d28764b5c 100644 --- a/net/ipv6/ipv6_sockglue.c +++ b/net/ipv6/ipv6_sockglue.c @@ -950,7 +950,10 @@ done: goto e_inval; if (val < 0 || val > 255) goto e_inval; - np->min_hopcount = val; + /* tcp_v6_err() and tcp_v6_rcv() might read min_hopcount + * while we are changing it. + */ + WRITE_ONCE(np->min_hopcount, val); retv = 0; break; case IPV6_DONTFRAG: |