linux-kernel - Re: [PATCH v4 5/6] iio: accel: Prevent NULL pointer dereference in interrupt setup

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

Message-ID: <d3318386-2646-4f1c-ab4b-6ae3bc71e9bb@oss.qualcomm.com>
Date: Tue, 25 Nov 2025 11:45:22 +0100
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: guptarud@...il.com, Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley
 <conor+dt@...nel.org>,
        Jonathan Cameron <jic23@...nel.org>,
        David Lechner <dlechner@...libre.com>,
        Nuno Sá
 <nuno.sa@...log.com>,
        Andy Shevchenko <andy@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-iio@...r.kernel.org
Subject: Re: [PATCH v4 5/6] iio: accel: Prevent NULL pointer dereference in
 interrupt setup

On 11/25/25 12:35 AM, Rudraksha Gupta via B4 Relay wrote:
> From: Rudraksha Gupta <guptarud@...il.com>
> 
> The bmc150_accel_set_interrupt() function assumes that the interrupt
> info is provided. However, when no IRQ is provided, the info pointer
> remains NULL, leading to a kernel oops:

Hm, are you sure your device really doesn't have a pin connected to
the IC's interrupt line?

Konrad