CVE-2026-74272

CVE CVE-2026-74272EUVD EUVD-2026-59419Published 2026-08-15T05:57:45.000ZLast changed 2026-08-17T05:16:16.000Z

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: cxl/region: Resolve region deletion races Sungwoo noticed that the sysfs trigger to delete a region may try to delete a region multiple times. It also has no exclusion relative to the kernel releasing the region via CXL root device teardown. Instead of installing new cxl root devres actions per region, use the existing root decoder unregistration event to remove all remaining regions. An xarray of regions replaces a devres list of regions. This handles 3 separate issues with the old approach: 1/ sysfs users racing to delete the same region: no longer possible now that the regions_lock is held over the lookup and deletion. 2/ multiple actions triggering deletion of the same region: solved by erasing regions while holding @regions_lock, and only proceeding on successful erasure. 3/ userspace racing devres_release_all() to trigger the devres not found warning: solved by sysfs unregistration not requiring a release action

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

Linux — Linux patch: 7.1.5; patch: 0; 779dd20cfb56c510f89877cca45529fa9f8bc450 <4dd86ca99ffcc413cbf79063fd9956ef54e0ca91; 6.0; patch: 7.2; 779dd20cfb56c510f89877cca45529fa9f8bc450 <be44c1c04f85d7b7ac1c597a30b443bbd346acbd

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

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Linux — Linux

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