Description

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 any time. If such a call happens while the ISP
is powered down, the SoC will hang as the driver tries to access the
ISP registers.

This can be reproduced even without the platform sharing the IRQ line:
Enable CONFIG_DEBUG_SHIRQ and unload the driver, and the board will
hang.

Fix this by adding a new field, 'irqs_enabled', which is used to bail
out from the interrupt handler when the ISP is not operational.

Classification

CVE ID: CVE-2023-52660

Affected Products

Vendor: Linux

Product: Linux

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.05% (probability of being exploited)

EPSS Percentile: 17.81% (scored less or equal to compared to others)

EPSS Date: 2025-02-03 (when was this score calculated)

References

https://git.kernel.org/stable/c/abd34206f396d3ae50cddbd5aa840b8cd7f68c63
https://git.kernel.org/stable/c/b39b4d207d4f236a74e20d291f6356f2231fd9ee
https://git.kernel.org/stable/c/edcf92bc66d8361c51dff953a55210e5cfd95587
https://git.kernel.org/stable/c/ffb635bb398fc07cb38f8a7b4a82cbe5f412f08e

Timeline