linux-kernel - [PATCH 0/2] net: Fix/prevent napi_schedule() call from bare task context

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 for Android: free password hash cracker in your pocket

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

Message-ID: <20250212174329.53793-1-frederic@kernel.org>
Date: Wed, 12 Feb 2025 18:43:27 +0100
From: Frederic Weisbecker <frederic@...nel.org>
To: LKML <linux-kernel@...r.kernel.org>
Cc: Frederic Weisbecker <frederic@...nel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...hat.com>,
	Will Deacon <will@...nel.org>,
	Boqun Feng <boqun.feng@...il.com>,
	Waiman Long <longman@...hat.com>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Simon Horman <horms@...nel.org>,
	Hayes Wang <hayeswang@...ltek.com>,
	linux-usb@...r.kernel.org,
	netdev@...r.kernel.org
Subject: [PATCH 0/2] net: Fix/prevent napi_schedule() call from bare task context

Hi,

Here is a fix to a bad context calling napi_schedule() and a lockdep
assertion to prevent from that in the future. I've tried to produce
a relevant Fixes tag but I'm not confident enough with this codebase.
This call is there for many years and yet the issue got reported only
recently, so I may be missing something in the history of this driver
or in net/usb infrastructure...

Thanks.

Frederic Weisbecker (2):
  net: Assert proper context while calling napi_schedule()
  r8152: Call napi_schedule() from proper context

 drivers/net/usb/r8152.c |  5 ++++-
 include/linux/lockdep.h | 12 ++++++++++++
 net/core/dev.c          |  1 +
 3 files changed, 17 insertions(+), 1 deletion(-)

-- 
2.46.0