From: Patrick Rohr <prohr@google.com> stable inclusion from stable-v5.10.199 commit 014cab5329d18524749dacc25923938aab14ff57 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I9K8D1 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=... -------------------------------- commit 5cb249686e67dbef3ffe53887fa725eefc5a7144 upstream. addrconf_prefix_rcv returned early without releasing the inet6_dev pointer when the PIO lifetime is less than accept_ra_min_lft. Fixes: 5027d54a9c30 ("net: change accept_ra_min_rtr_lft to affect all RA lifetimes") Cc: Maciej Żenczykowski <maze@google.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: David Ahern <dsahern@kernel.org> Cc: Simon Horman <horms@kernel.org> Reviewed-by: Simon Horman <horms@kernel.org> Reviewed-by: Maciej Żenczykowski <maze@google.com> Signed-off-by: Patrick Rohr <prohr@google.com> Reviewed-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com> --- net/ipv6/addrconf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index 143fa448c304..5e42149b954f 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -2748,7 +2748,7 @@ void addrconf_prefix_rcv(struct net_device *dev, u8 *opt, int len, bool sllao) } if (valid_lft != 0 && valid_lft < in6_dev->cnf.accept_ra_min_lft) - return; + goto put; /* * Two things going on here: -- 2.34.1