Re: Re: [syzbot] KASAN: use-after-free Write in j1939_sock_pending_del

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To: syzbot+07bb74aeafc88ba7d5b4@xxxxxxxxxxxxxxxxxxxxxxxxx
Subject: Re: Re: [syzbot] KASAN: use-after-free Write in j1939_sock_pending_del
From: Aleksandr Nogikh <nogikh@xxxxxxxxxx>
Date: Mon, 17 Jul 2023 14:32:15 +0200
Cc: bst@xxxxxxxxxxxxxx, dania@xxxxxxxxxxxxxxxxx, davem@xxxxxxxxxxxxx, dev.kurt@xxxxxxxxxxxxxxxxxxxxxx, ecathinds@xxxxxxxxx, kernel@xxxxxxxxxxxxxx, linux-can@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, linux@xxxxxxxxxxxxxxxx, lkp@xxxxxxxxx, maxime.jayat@xxxxxxxxxxxxxxxxx, mkl@xxxxxxxxxxxxxx, netdev@xxxxxxxxxxxxxxx, nogikh@xxxxxxxxxx, o.rempel@xxxxxxxxxxxxxx, robin@xxxxxxxxxxx, socketcan@xxxxxxxxxxxx, syzkaller-bugs@xxxxxxxxxxxxxxxx
In-reply-to: <000000000000dd5c040600366c6f@google.com>
References: <000000000000dd5c040600366c6f@google.com>

> This bug is marked as fixed by commit:
> can: j1939: socket: rework socket locking for

> But I can't find it in the tested trees[1] for more than 90 days.

#syz fix: can: j1939: socket: rework socket locking for j1939_sk_release() and j1939_sk_sendmsg()

References:
- Re: [syzbot] KASAN: use-after-free Write in j1939_sock_pending_del
  - From: syzbot

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