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authorMax Krummenacher <max.krummenacher@toradex.com>2021-10-16 13:04:24 +0200
committerMax Krummenacher <max.krummenacher@toradex.com>2021-10-16 13:04:24 +0200
commitf8e718054f4421d11638e370b933ccc6c77466ed (patch)
tree973ff8cb8aed7d8e4da6a194456ddc01c206b7de /net/ipv4/igmp.c
parentd900385139e5aa8d584dee92c87bb85d0226253e (diff)
parent1392fe82d7fba00ba4a8e01968935f2b2085d5a4 (diff)
Merge tag 'v4.4.288' into toradex_vf_4.4
This is the 4.4.288 stable release Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>
Diffstat (limited to 'net/ipv4/igmp.c')
-rw-r--r--net/ipv4/igmp.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
index c67efa3e79dd..7b0bbda676b3 100644
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -2631,6 +2631,7 @@ int ip_check_mc_rcu(struct in_device *in_dev, __be32 mc_addr, __be32 src_addr, u
rv = 1;
} else if (im) {
if (src_addr) {
+ spin_lock_bh(&im->lock);
for (psf = im->sources; psf; psf = psf->sf_next) {
if (psf->sf_inaddr == src_addr)
break;
@@ -2641,6 +2642,7 @@ int ip_check_mc_rcu(struct in_device *in_dev, __be32 mc_addr, __be32 src_addr, u
im->sfcount[MCAST_EXCLUDE];
else
rv = im->sfcount[MCAST_EXCLUDE] != 0;
+ spin_unlock_bh(&im->lock);
} else
rv = 1; /* unspecified source; tentatively allow */
}