From: Hillf Danton <hdanton@sina.com>
To: syzbot <syzbot+d4e8dc385d9258220c31@syzkaller.appspotmail.com>
Cc: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com
Subject: Re: [syzbot] [can?] WARNING: refcount bug in sk_skb_reason_drop
Date: Fri, 4 Oct 2024 07:34:52 +0800 [thread overview]
Message-ID: <20241003233452.2044-1-hdanton@sina.com> (raw)
In-Reply-To: <66fec2e2.050a0220.9ec68.0046.GAE@google.com>
On Thu, 03 Oct 2024 09:14:26 -0700
> syzbot found the following issue on:
>
> HEAD commit: a430d95c5efa Merge tag 'lsm-pr-20240911' of git://git.kern..
> git tree: upstream
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=15b9a607980000
#syz test
--- x/net/can/j1939/transport.c
+++ y/net/can/j1939/transport.c
@@ -1506,6 +1506,7 @@ static struct j1939_session *j1939_sessi
skb_queue_head_init(&session->skb_queue);
skb_queue_tail(&session->skb_queue, skb);
+ skb_get(skb);
skcb = j1939_skb_to_cb(skb);
memcpy(&session->skcb, skcb, sizeof(session->skcb));
--
next prev parent reply other threads:[~2024-10-03 23:35 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-03 16:14 syzbot
2024-10-03 17:39 ` [syzbot] " syzbot
2024-10-03 23:34 ` Hillf Danton [this message]
2024-10-04 0:41 ` syzbot
[not found] <20241003173925.127880-1-dmantipov@yandex.ru>
2024-10-03 18:09 ` syzbot
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