Merge "igmp: Add ip_mc_list lock in ip_check_mc_rcu" (17ee78dd) · Commits · e / devices / android_kernel_oneplus_sm7250

net/ipv4/igmp.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -2735,6 +2735,7 @@ 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;
		@@ -2745,6 +2746,7 @@ 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 */
		}