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CVE-2025-21817

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CVE-2025-21817

Published: Feb 27, 2025

Modified: May 11, 2026

PUBLISHED

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()

VendorProductVersions

Linux

Linux

affected
8985da5481562e96b95e94ed8e5cc9b6565eb82b - < 2566ce907e5d5db8a039647208e029ce559baa31
affected
c99f66e4084a62a2cc401c4704a84328aeddc9ec - < 7c0be4ead1f8f5f8be0803f347de0de81e3b8e1c

Linux

Linux

affected
6.13.2 - < 6.13.3

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