Description

In the Linux kernel, the following vulnerability has been resolved: hung_task: fix warnings caused by unaligned lock pointers The blocker tracking mechanism assumes that lock pointers are at least 4-byte aligned to use their lower bits for type encoding. However, as reported by Eero Tamminen, some architectures like m68k only guarantee 2-byte alignment of 32-bit values. This breaks the assumption and causes two related WARN_ON_ONCE checks to trigger. To fix this, the runtime checks are adjusted to silently ignore any lock that is not 4-byte aligned, effectively disabling the feature in such cases and avoiding the related warnings. Thanks to Geert Uytterhoeven for bisecting!

INFO

Published Date :

2025-12-16T14:32:17.173Z

Last Modified :

2025-12-16T14:32:17.173Z

Source :

Linux
AFFECTED PRODUCTS

The following products are affected by CVE-2025-68250 vulnerability.

Vendors Products
Linux
  • Linux Kernel

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