PT-2026-34902 · Linux · Linux Kernel

Published 2026-04-24 · Updated 2026-04-29 · CVE-2026-31550

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description The bcm2835 asb control() function employs a tight polling loop to wait for the ASB bridge to acknowledge a request. Under intensive workloads, this handshake can intermittently fail for the V3D master ASB on BCM2711, causing errors during runtime PM suspend. This failure leaves V3D in a broken state, which may lead to bus faults or system hangs during subsequent accesses.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Related Identifiers

CVE-2026-31550

ECHO-B020-933F-2E25

Affected Products

Linux Kernel

References · 18

• https://git.kernel.org/stable/c/ea4fa54b83bb2e4a21e9026824bfe271b1a6ee1e · Patch
• https://cve.org/CVERecord?id=CVE-2026-31550 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2026-31550 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-31550 · Vendor Advisory
• https://git.kernel.org/stable/c/c5e734f6a0740dce92e7c919e632cb43fa5d4e53 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-31550 · Security Note
• https://git.kernel.org/stable/c/622ab02e955c35c125ff2b65d8327b2c52db8758 · Patch
• https://git.kernel.org/stable/c/b826d2c0b0ecb844c84431ba6b502e744f5d919a · Patch
• https://git.kernel.org/stable/c/18605b1b936b66b1f34dcf8e9ad4f1fbcf7a7c13 · Patch
• https://git.kernel.org/stable/c/0e84e74849d2d7e9b23a09c2d5e0d9357db1ca59 · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-31550 · Vendor Advisory
• https://git.kernel.org/stable/c/572f17180f26619809b8e0593d926762aa8660ff · Patch
• https://osv.dev/vulnerability/BELL-CVE-2026-31550 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-31550 · Vendor Advisory
• https://git.kernel.org/stable/c/9443202d91388026dbf7312972a74fbfd27ee82f · Patch