netdev - [PATCH v3 net-next 0/2] fix possible deadlock during WED attach

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:   Wed,  7 Dec 2022 15:04:53 +0100
From:   Lorenzo Bianconi <lorenzo@...nel.org>
To:     netdev@...r.kernel.org
Cc:     nbd@....name, john@...ozen.org, sean.wang@...iatek.com,
        Mark-MC.Lee@...iatek.com, davem@...emloft.net, edumazet@...gle.com,
        kuba@...nel.org, pabeni@...hat.com, matthias.bgg@...il.com,
        linux-mediatek@...ts.infradead.org, lorenzo.bianconi@...hat.com,
        leon@...nel.org, sujuan.chen@...iatek.com
Subject: [PATCH v3 net-next 0/2] fix possible deadlock during WED attach

Fix a possible deadlock in mtk_wed_attach if mtk_wed_wo_init routine fails.
Check wo pointer is properly allocated before running mtk_wed_wo_reset() and
mtk_wed_wo_deinit().

Changes sice v2:
- add WARN_ON in mtk_wed_mcu_msg_update()
- split in two patches
Changes since v1:
- move wo pointer checks in __mtk_wed_detach()

Lorenzo Bianconi (2):
  net: ethernet: mtk_wed: fix some possible NULL pointer dereferences
  net: ethernet: mtk_wed: fix possible deadlock if mtk_wed_wo_init fails

 drivers/net/ethernet/mediatek/mtk_wed.c     | 30 ++++++++++++++-------
 drivers/net/ethernet/mediatek/mtk_wed_mcu.c |  3 +++
 2 files changed, 23 insertions(+), 10 deletions(-)

-- 
2.38.1