CVE-2023-52589: media: rkisp1: Fix IRQ disable race issue

Severity: medium (CVSS 4.7 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-03-06 · updated 2026-06-17
Weakness: CWE-362

Description

In the Linux kernel, the following vulnerability has been resolved: media: rkisp1: Fix IRQ disable race issue In rkisp1_isp_stop() and rkisp1_csi_disable() the driver masks the interrupts and then apparently assumes that the interrupt handler won't be running, and proceeds in the stop procedure. This is not the case, as the interrupt handler can already be running, which would lead to the ISP being disabled while the interrupt handler handling a captured frame. This brings up two issues: 1) the ISP could be powered off while the interrupt handler is still running and accessing registers, leading to board lockup, and 2) the interrupt handler code and the code that disables the streaming might do things that conflict. It is not clear to me if 2) causes a real issue, but 1) can be seen with a suitable delay (or printk in my case) in the interrupt handler, leading to board lockup.

Affected products

Linux kernel: before 6.1.77; from 6.2 before 6.6.16; from 6.7 before 6.7.4 — fixed in 6.1.77, 6.6.16, 6.7.4

How to fix

Upgrade to a fixed version: Linux kernel 6.1.77, 6.6.16, 6.7.4. Check the vendor advisory for mitigations.

References

Get alerted when CVE-2023-52589 or the next vulnerability affects your stack