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From: Oliver Hartkopp via B4 Relay <devnull+socketcan.hartkopp.net@kernel.org>
To: Marc Kleine-Budde <mkl@pengutronix.de>,
	 "David S. Miller" <davem@davemloft.net>,
	 Urs Thuermann <urs.thuermann@volkswagen.de>,
	 Vincent Mailhol <mailhol@kernel.org>
Cc: linux-can@vger.kernel.org, linux-kernel@vger.kernel.org,
	 Oliver Hartkopp <socketcan@hartkopp.net>,
	 syzbot+5b11eccc403dd1cea9f8@syzkaller.appspotmail.com,
	 syzbot+75e5e4ae00c3b4bb544e@syzkaller.appspotmail.com
Subject: [PATCH v3 0/3] can: bcm: add/fix locking for config updates at runtime
Date: Thu, 19 Feb 2026 17:51:16 +0100	[thread overview]
Message-ID: <20260219-bcm_spin_lock_init-v3-0-c61026740d7b@hartkopp.net> (raw)

Address three locking issues detected by KASAN and KCSAN.

The first patch fixes an unintialized spin_lock in the KASAN fix.
The second patch addresses the update of content in bcm_rx_setup().
The third patch adds a missing atomic conversion in can_rcv_filter().

Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
---
Changes in v3:
- Add a third patch that fixes a KCSAN issue that showed up while testing
  patch 2 8-)
- Link to v2: https://patch.msgid.link/20260219-bcm_spin_lock_init-v2-0-694352bfca62@hartkopp.net

Changes in v2:
- Add a second patch addressing the KCSAN report
- Link to v1: https://patch.msgid.link/20260218-bcm_spin_lock_init-v1-1-592634c8a5b5@hartkopp.net

---
Oliver Hartkopp (3):
      can: bcm: fix locking for bcm_op runtime updates
      can: bcm: add locking when updating filter and timer values
      can: statistics: add missing atomic access in hot path

 net/can/af_can.c |  4 ++--
 net/can/af_can.h |  2 +-
 net/can/bcm.c    | 40 +++++++++++++++++++++++++++++++++-------
 3 files changed, 36 insertions(+), 10 deletions(-)
---
base-commit: 2961f841b025fb234860bac26dfb7fa7cb0fb122
change-id: 20260218-bcm_spin_lock_init-2518eb8d4501

Best regards,
--  
Oliver Hartkopp <socketcan@hartkopp.net>



             reply	other threads:[~2026-02-19 16:51 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-02-19 16:51 Oliver Hartkopp via B4 Relay [this message]
2026-02-19 16:51 ` [PATCH v3 1/3] can: bcm: fix locking for bcm_op runtime updates Oliver Hartkopp via B4 Relay
2026-02-19 16:51 ` [PATCH v3 2/3] can: bcm: add locking when updating filter and timer values Oliver Hartkopp via B4 Relay
2026-03-02 10:21   ` Marc Kleine-Budde
2026-03-23  9:42     ` Marc Kleine-Budde
2026-03-23  9:46       ` Oliver Hartkopp
2026-02-19 16:51 ` [PATCH v3 3/3] can: statistics: add missing atomic access in hot path Oliver Hartkopp via B4 Relay
2026-03-02 10:22   ` Marc Kleine-Budde

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