NULL Pointer Dereference Affecting kernel-source package, versions <6.12.0-160000.34.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.12% (3rd percentile)

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  • Snyk IDSNYK-SLES1600-KERNELSOURCE-17343326
  • published16 Jun 2026
  • disclosed5 Jun 2026

Introduced: 5 Jun 2026

NewCVE-2026-31736  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade SLES:16.0.0 kernel-source to version 6.12.0-160000.34.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-source package and not the kernel-source package as distributed by SLES. See How to fix? for SLES:16.0.0 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

net: ethernet: mtk_ppe: avoid NULL deref when gmac0 is disabled

If the gmac0 is disabled, the precheck for a valid ingress device will cause a NULL pointer deref and crash the system. This happens because eth->netdev[0] will be NULL but the code will directly try to access netdev_ops.

Instead of just checking for the first net_device, it must be checked if any of the mtk_eth net_devices is matching the netdev_ops of the ingress device.

CVSS Base Scores

version 3.1