Medium 5.5Published Apr 24, 2026

CVE-2026-31550pmdomain: bcm: bcm2835-power: Increase ASB control timeout

Updated under an hour ago (Oct 27, 2026, 10:50 PM ET)

Does this affect you?

It affects Linux and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for Linux

Exploited in the last 30 days

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().

CVSS: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Analyzed
Record last updated: May 11, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	670c672608a1ffcbc7ac0f872734843593bb8b15 builds before 0e84e74849d2d7e9b23a09c2d5e0d9357db1ca59; from 670c672608a1ffcbc7ac0f872734843593bb8b15 before c5e734f6a0740dce92e7c919e632cb43fa5d4e53; 670c672608a1ffcbc7ac0f872734843593bb8b15 builds before 622ab02e955c35c125ff2b65d8327b2c52db8758; from 670c672608a1ffcbc7ac0f872734843593bb8b15 before 9443202d91388026dbf7312972a74fbfd27ee82f; from 670c672608a1ffcbc7ac0f872734843593bb8b15 before ea4fa54b83bb2e4a21e9026824bfe271b1a6ee1e; from 670c672608a1ffcbc7ac0f872734843593bb8b15 before 18605b1b936b66b1f34dcf8e9ad4f1fbcf7a7c13; 670c672608a1ffcbc7ac0f872734843593bb8b15 builds before 572f17180f26619809b8e0593d926762aa8660ff; from 670c672608a1ffcbc7ac0f872734843593bb8b15 before b826d2c0b0ecb844c84431ba6b502e744f5d919a	CNA record
linux linux_kernel linux:linux_kernel	from 5.1.1 before 5.10.253; from 5.11 before 5.15.203; from 5.16 before 6.1.167; from 6.2 before 6.6.130; from 6.7 before 6.12.78; from 6.13 before 6.18.20; from 6.19 before 6.19.10; 5.1; and 7 more ranges	NVD

References

References

https://git.kernel.org/stable/c/0e84e74849d2d7e9b23a09c2d5e0d9357db1ca59	patch
https://git.kernel.org/stable/c/c5e734f6a0740dce92e7c919e632cb43fa5d4e53	patch
https://git.kernel.org/stable/c/622ab02e955c35c125ff2b65d8327b2c52db8758	patch
https://git.kernel.org/stable/c/9443202d91388026dbf7312972a74fbfd27ee82f	patch
https://git.kernel.org/stable/c/ea4fa54b83bb2e4a21e9026824bfe271b1a6ee1e	patch
https://git.kernel.org/stable/c/18605b1b936b66b1f34dcf8e9ad4f1fbcf7a7c13	patch
https://git.kernel.org/stable/c/572f17180f26619809b8e0593d926762aa8660ff	patch
https://git.kernel.org/stable/c/b826d2c0b0ecb844c84431ba6b502e744f5d919a	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.