CVE-2023-52660: Vulnerability in linux-libc-dev - Fix IRQ handling due to shared interrupts
Summary
CVE-2023-52660: In the Linux kernel, the following vulnerability has been resolved: media: rkisp1: Fix IRQ handling due to shared interrupts The driver requests the interrupts as IRQF_SHARED, so the interrupt handlers can be called at a... Affects linux versions 5.10.103-1 – 6.9.9-1. No fix is published. How to fix ↓
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Background
The linux-libc-dev package is a development package that provides the necessary C library headers for compiling programs that use the Linux kernel interfaces. It is an essential component for building and running applications on Linux systems. This package is vulnerable to a specific issue related to IRQ handling in the media subsystem of the Linux kernel.
Vulnerability Detail
The vulnerability in linux-libc-dev (CVE-2023-52660) is related to the media subsystem's IRQ handling. The driver requests interrupts as IRQF_SHARED, which allows interrupt handlers to be called at any time. However, if such a call occurs while the Image Signal Processor (ISP) is powered down, the system can hang as the driver tries to access ISP registers. This issue can even be reproduced without any platform sharing the IRQ line. To address this vulnerability, a new field called 'irqs_enabled' has been added to the driver to prevent the interrupt handler from executing when the ISP is not operational.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no specific workaround mentioned for this vulnerability. Users are advised to update the linux-libc-dev package to the latest version as soon as possible.
Conclusion
The vulnerability in linux-libc-dev (CVE-2023-52660) has been addressed in version 6.1.90-1. Users are advised to update their linux-libc-dev package to the latest version to mitigate the risk of system hangs caused by incorrect IRQ handling. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
linux-libc-dev is a development package that provides C library headers for compiling programs using Linux kernel interfaces.
The vulnerability can lead to system hangs if interrupt handlers are called while the ISP is powered down.
No, this vulnerability requires local access to the system.
There is no known exploit for this vulnerability at the moment.
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