ip: Fix data-races around sysctl_ip_no_pmtu_disc.
authorKuniyuki Iwashima <kuniyu@amazon.com>
Wed, 13 Jul 2022 20:51:52 +0000 (13:51 -0700)
committerDavid S. Miller <davem@davemloft.net>
Fri, 15 Jul 2022 10:49:55 +0000 (11:49 +0100)
commit0968d2a441bf6afb551fd99e60fa65ed67068963
tree94b301f59fbd5390e80493ce1845272c0e644c0e
parent8281b7ec5c56b71cb2cc5a1728b41607be66959c
ip: Fix data-races around sysctl_ip_no_pmtu_disc.

While reading sysctl_ip_no_pmtu_disc, it can be changed concurrently.
Thus, we need to add READ_ONCE() to its readers.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/ipv4/af_inet.c
net/ipv4/icmp.c
net/ipv6/af_inet6.c
net/xfrm/xfrm_state.c