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rtnetlink: fix netns leak with rtnl_setlink()

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A call to rtnl_nets_destroy() is needed to release references taken on
netns put in rtnl_nets.

CC: stable@vger.kernel.org
Fixes: 636af13f21 ("rtnetlink: Register rtnl_dellink() and rtnl_setlink() with RTNL_FLAG_DOIT_PERNET_WIP.")
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://patch.msgid.link/20250205221037.2474426-1-nicolas.dichtel@6wind.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Nicolas Dichtel 2025-02-05 23:10:37 +01:00 • committed by Jakub Kicinski
parent bca0902e61
commit 1438f5d07b
1 changed files with 1 additions and 0 deletions
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net/core/rtnetlink.c
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@ -3432,6 +3432,7 @@ static int rtnl_setlink(struct sk_buff *skb, struct nlmsghdr *nlh,
err = -ENODEV;
rtnl_nets_unlock(&rtnl_nets);
rtnl_nets_destroy(&rtnl_nets);
errout:
return err;
}