VULNERABILITY

Debian: CVE-2025-21817: linux -- security update

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Debian: CVE-2025-21817: linux -- security update

Severity
6
CVSS
(AV:L/AC:L/Au:S/C:C/I:N/A:C)
Published
02/27/2025
Created
05/16/2025
Added
05/15/2025
Modified
05/27/2025

Description

In the Linux kernel, the following vulnerability has been resolved: block: mark GFP_NOIO around sysfs ->store() sysfs ->store is called with queue freezed, meantime we have several ->store() callbacks(update_nr_requests, wbt, scheduler) to allocate memory with GFP_KERNEL which may run into direct reclaim code path, then potential deadlock can be caused. Fix the issue by marking NOIO around sysfs ->store()

Solution(s)

  • no-fix-debian-deb-package

References

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