strparser wants to check socket ownership without producing any warnings. As indicated by the comment in the code, it is permissible for owned_by_user to return true.
Fixes: 43a0c6751a322847 ("strparser: Stream parser for messages") Reported-by: syzbot <syzkal...@googlegroups.com> Signed-off-by: Tom Herbert <t...@quantonium.net> --- net/strparser/strparser.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/strparser/strparser.c b/net/strparser/strparser.c index c5fda15ba319..1fdab5c4eda8 100644 --- a/net/strparser/strparser.c +++ b/net/strparser/strparser.c @@ -401,7 +401,7 @@ void strp_data_ready(struct strparser *strp) * allows a thread in BH context to safely check if the process * lock is held. In this case, if the lock is held, queue work. */ - if (sock_owned_by_user(strp->sk)) { + if (sock_owned_by_user_nocheck(strp->sk)) { queue_work(strp_wq, &strp->work); return; } -- 2.11.0