IT

Tracker / CVE-2026-31550

CVE-2026-31550

Medium 5.5

In the Linux kernel, the following vulnerability has been resolved: pmdomain: bcm: bcm2835-power: Increase ASB control timeout The bcm2835_asb_control() function uses a tight polling loop to wait for the ASB bridge to acknowledge a request. During intensive workloads, this handshake intermittently fails for V3D's master ASB on BCM2711, resulting in "Failed to disable ASB master for v3d" errors during runtime PM suspend. As a consequence, the failed power-off leaves V3D in a broken state, leading to bus faults or system hangs on later accesses. As the timeout is insufficient in some scenarios, increase the polling timeout from 1us to 5us, which is still negligible in the context of a power domain transition. Also, replace the open-coded ktime_get_ns()/ cpu_relax() polling loop with readl_poll_timeout_atomic().

Affected products and versions

linux linux_kernel
linux linux_kernel · 5.1.1 → 5.10.253
linux linux_kernel · 5.11 → 5.15.203
linux linux_kernel · 5.16 → 6.1.167
linux linux_kernel · 6.13 → 6.18.20
linux linux_kernel · 6.19 → 6.19.10
linux linux_kernel · 6.2 → 6.6.130
linux linux_kernel · 6.7 → 6.12.78

Analysis

This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.

References