CVE-2026-72178

Technical Description

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

mm/damon/core: always put unsuccessfully committed target pids

damon_commit_target() puts and gets the destination and the source target

pids. It puts the destination target pid because it will be overwritten

by the source target pid. It gets the source pid because the caller is

supposed to eventually put the pids. In more detail, the caller will call

damon_destroy_ctx() after damon_commit_ctx() to destroy the entire source

context. And in this case, [f]vaddr operation set's cleanup_target()

callback will put the pids.

The commit operation is made at the context level. The operation can fail

in multiple places including in the middle and after the targets commit

operations. For any such failures, immediately the error is returned to

the damon_commit_ctx() caller. If some or all of the source target pids

were committed to the destination during the unsuccessful context commit

attempt, those pids should be put

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References