6.5-stable review patch. If anyone has any objections, please let me know.
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From: Patrick Rohr prohr@google.com
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 --- net/ipv6/addrconf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -2734,7 +2734,7 @@ void addrconf_prefix_rcv(struct net_devi }
if (valid_lft != 0 && valid_lft < in6_dev->cnf.accept_ra_min_lft) - return; + goto put;
/* * Two things going on here: