diff options
author | Kuniyuki Iwashima <kuniyu@amazon.com> | 2022-07-12 03:15:29 +0300 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-07-21 22:20:10 +0300 |
commit | 038a87b3e460d2ee579c8b1bd3890d816d6687b1 (patch) | |
tree | 48ebdd7d0bebebd975f6140f6814e4c64227734a /include | |
parent | 38d78c7b4be7759555d45181213a7845aad279e2 (diff) | |
download | linux-038a87b3e460d2ee579c8b1bd3890d816d6687b1.tar.xz |
raw: Fix a data-race around sysctl_raw_l3mdev_accept.
[ Upstream commit 1dace014928e6e385363032d359a04dee9158af0 ]
While reading sysctl_raw_l3mdev_accept, it can be changed concurrently.
Thus, we need to add READ_ONCE() to its reader.
Fixes: 6897445fb194 ("net: provide a sysctl raw_l3mdev_accept for raw socket lookup with VRFs")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include')
-rw-r--r-- | include/net/raw.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/net/raw.h b/include/net/raw.h index 8ad8df594853..c51a635671a7 100644 --- a/include/net/raw.h +++ b/include/net/raw.h @@ -75,7 +75,7 @@ static inline bool raw_sk_bound_dev_eq(struct net *net, int bound_dev_if, int dif, int sdif) { #if IS_ENABLED(CONFIG_NET_L3_MASTER_DEV) - return inet_bound_dev_eq(!!net->ipv4.sysctl_raw_l3mdev_accept, + return inet_bound_dev_eq(READ_ONCE(net->ipv4.sysctl_raw_l3mdev_accept), bound_dev_if, dif, sdif); #else return inet_bound_dev_eq(true, bound_dev_if, dif, sdif); |