PT-2026-34898 · Linux · Linux Kernel

Published 2026-04-24 · Updated 2026-04-29 · CVE-2026-31546

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 A NULL pointer dereference exists in the bonding network subsystem. The function bond debug rlb hash show() accesses client info->slave without verifying if the value is NULL. This occurs because rlb clear slave() may leave RLB hash-table entries on the rx hashtbl used head list with the slave set to NULL when no replacement slave is available, potentially leading to a kernel crash.

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

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2026-31546

ECHO-0B28-A403-9102

Affected Products

Linux Kernel

References · 19

• https://nvd.nist.gov/vuln/detail/CVE-2026-31546 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-31546 · Vendor Advisory
• https://git.kernel.org/stable/c/ec9762f0df2f9fbe3f40a3bfa8aab8b2f721466c · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-31546 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-31546 · Security Note
• https://git.kernel.org/stable/c/6a3bb74e25d79cbb15f67ef80f71e2b2bfe27ff4 · Patch
• https://git.kernel.org/stable/c/0a3f8cd3f370247ded14d38d216b49dd30eade76 · Patch
• https://git.kernel.org/stable/c/19f0fd87df0e5746b24f5caa465a66a8c6e6e241 · Patch
• https://ubuntu.com/security/CVE-2026-31546 · Vendor Advisory
• https://git.kernel.org/stable/c/2ec2c777f357a83c3d503d8d9370c90b60f0ae63 · Patch
• https://git.kernel.org/stable/c/017d674cf6930e9586a29ee808c7ca09d1396d07 · Patch
• https://osv.dev/vulnerability/BELL-CVE-2026-31546 · Vendor Advisory
• https://git.kernel.org/stable/c/605b52497bf89b3b154674deb135da98f916e390 · Patch
• https://security-tracker.debian.org/tracker/CVE-2026-31546 · Vendor Advisory
• https://git.kernel.org/stable/c/edacf1613f7b26423ebfa8b2892e7453c4235354 · Patch