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| author | Tom Herbert <tom@quantonium.net> | 2018-02-14 09:22:42 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-02-14 15:38:39 -0500 |
| commit | dff8baa261174de689a44572d0ea182d7aa70598 (patch) | |
| tree | 41bdf2216ed27acc86855b741ff8e08d1c822cc3 /net/kcm | |
| parent | 0e47079b6cd7d26e2dab95398927b1184a9a733c (diff) | |
| download | lwn-dff8baa261174de689a44572d0ea182d7aa70598.tar.gz lwn-dff8baa261174de689a44572d0ea182d7aa70598.zip | |
kcm: Call strp_stop before strp_done in kcm_attach
In kcm_attach strp_done is called when sk_user_data is already
set to fail the attach. strp_done needs the strp to be stopped and
warns if it isn't. Call strp_stop in this case to eliminate the
warning message.
Reported-by: syzbot+88dfb55e4c8b770d86e3@syzkaller.appspotmail.com
Fixes: e5571240236c5652f ("kcm: Check if sk_user_data already set in kcm_attach"
Signed-off-by: Tom Herbert <tom@quantonium.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/kcm')
| -rw-r--r-- | net/kcm/kcmsock.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/kcm/kcmsock.c b/net/kcm/kcmsock.c index f297d53a11aa..435594648dac 100644 --- a/net/kcm/kcmsock.c +++ b/net/kcm/kcmsock.c @@ -1417,6 +1417,7 @@ static int kcm_attach(struct socket *sock, struct socket *csock, */ if (csk->sk_user_data) { write_unlock_bh(&csk->sk_callback_lock); + strp_stop(&psock->strp); strp_done(&psock->strp); kmem_cache_free(kcm_psockp, psock); return -EALREADY; |