CVE-2025-21817
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2025-21817
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-21817.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2025-21817
- Downstream
- Published
- 2025-02-27T20:04:15.988Z
- Modified
- 2025-11-16T13:45:37.673015Z
- Summary
- block: mark GFP_NOIO around sysfs ->store()
- Details
-
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(updatenrrequests, 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()
- References
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced8985da5481562e96b95e94ed8e5cc9b6565eb82bFixed2566ce907e5d5db8a039647208e029ce559baa31
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedc99f66e4084a62a2cc401c4704a84328aeddc9ecFixed7c0be4ead1f8f5f8be0803f347de0de81e3b8e1c