6.6-stable review patch. If anyone has any objections, please let me know.
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From: Yue Haibing yuehaibing@huawei.com
[ Upstream commit ae3264a25a4635531264728859dbe9c659fad554 ]
pmc->idev is still used in ip6_mc_clear_src(), so as mld_clear_delrec() does, the reference should be put after ip6_mc_clear_src() return.
Fixes: 63ed8de4be81 ("mld: add mc_lock for protecting per-interface mld data") Signed-off-by: Yue Haibing yuehaibing@huawei.com Link: https://patch.msgid.link/20250714141957.3301871-1-yuehaibing@huawei.com Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- net/ipv6/mcast.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c index 9bb246c09fcee..e153dac47a530 100644 --- a/net/ipv6/mcast.c +++ b/net/ipv6/mcast.c @@ -803,8 +803,8 @@ static void mld_del_delrec(struct inet6_dev *idev, struct ifmcaddr6 *im) } else { im->mca_crcount = idev->mc_qrv; } - in6_dev_put(pmc->idev); ip6_mc_clear_src(pmc); + in6_dev_put(pmc->idev); kfree_rcu(pmc, rcu); } }