NULL Pointer Dereference Affecting kernel-kvmsmall package, versions <6.12.0-160000.37.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.16% (6th percentile)

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  • Snyk IDSNYK-SLES1600-KERNELKVMSMALL-19323454
  • published27 Aug 2026
  • disclosed11 Aug 2026

Introduced: 11 Aug 2026

NewCVE-2026-53152  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade SLES:16.0.0 kernel-kvmsmall to version 6.12.0-160000.37.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-kvmsmall package and not the kernel-kvmsmall 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:

mmc: dw_mmc-rockchip: Add missing private data for very old controllers

The really old controllers (rk2928, rk3066, rk3188) do not support UHS speeds at all, and thus never handled phase data.

For that reason it never had a parse_dt callback and no driver private data at all.

Commit ff6f0286c896 ("mmc: dw_mmc-rockchip: Add memory clock auto-gating support") makes the private data sort of mandatory, because the init function checks whether phases are configured internally or through the clock controller.

This results in the old SoCs then experiencing NULL-pointer dereferences when they try to access that private-data struct.

While we could have if (priv) conditionals in all places, it's way less cluttery to just give the old types their private-data struct.

CVSS Base Scores

version 3.1