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()

INFO

Published Date :

2025-02-27T20:04:15.988Z

Last Modified :

2025-06-19T12:56:45.920Z

Source :

Linux
AFFECTED PRODUCTS

The following products are affected by CVE-2025-21817 vulnerability.

Vendors Products
Linux
  • Linux Kernel
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-21817.

URL Resource
https://git.kernel.org/stable/c/2566ce907e5d5db8a039647208e029ce559baa31 cve-icon cve-icon
https://git.kernel.org/stable/c/7c0be4ead1f8f5f8be0803f347de0de81e3b8e1c cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025022710-CVE-2025-21817-2fc8@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-21817 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-21817 cve-icon
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