Re: [PATCH v2] can: fix skb reference counting in j1939_session_new()

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To: Oleksij Rempel <o.rempel@xxxxxxxxxxxxxx>, Jiri Pirko <jiri@xxxxxxxxxxx>
Subject: Re: [PATCH v2] can: fix skb reference counting in j1939_session_new()
From: Dmitry Antipov <dmantipov@xxxxxxxxx>
Date: Wed, 6 Nov 2024 14:05:23 +0300
Cc: Robin van der Gracht <robin@xxxxxxxxxxx>, Oliver Hartkopp <socketcan@xxxxxxxxxxxx>, Marc Kleine-Budde <mkl@xxxxxxxxxxxxxx>, linux-can@xxxxxxxxxxxxxxx, netdev@xxxxxxxxxxxxxxx, lvc-project@xxxxxxxxxxxxxxxx, syzbot+d4e8dc385d9258220c31@xxxxxxxxxxxxxxxxxxxxxxxxx
In-reply-to: <Zys6KGmEWVnwidLb@pengutronix.de>
References: <20241105094823.2403806-1-dmantipov@yandex.ru> <ZypJ4ZnR0JkPedNz@nanopsycho.orion> <Zys6KGmEWVnwidLb@pengutronix.de>
User-agent: Mozilla Thunderbird

On 11/6/24 12:43 PM, Oleksij Rempel wrote:

Hm... looks the there is more then one refcounting problem at this
point. skb_queue is set from 3 different paths, with resulting 3 different
refcount states:


I'll take a look; anyway I would prefer "one patch per one problem" approach.

Dmitry

References:
- [PATCH v2] can: fix skb reference counting in j1939_session_new()
  - From: Dmitry Antipov
- Re: [PATCH v2] can: fix skb reference counting in j1939_session_new()
  - From: Jiri Pirko
- Re: [PATCH v2] can: fix skb reference counting in j1939_session_new()
  - From: Oleksij Rempel

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