CVE-2025-21817
MEDIUM
MEDIUM
Priority: 0.01
BB Relevance:
36/100
Published: 2025-02-27
Modified: 2026-11-05
First seen: 2026-11-05
Status: active
Attack Surface
Low Complexity
No Interaction
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
Low
UI:
None
S:
Unchanged
C:
None
I:
None
A:
High
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()
Weakness Classification (1)
Affected Software (6)
| Vendor | Product | Version |
|---|---|---|
| Linux | Linux | 1645cd7fd42c236c952e9228badcac4fea1829ea < a09280c39ea54080daf19cfaf4a3121a8d17d5cd |
| Linux | Linux | 8985da5481562e96b95e94ed8e5cc9b6565eb82b < 2566ce907e5d5db8a039647208e029ce559baa31 |
| Linux | Linux | c99f66e4084a62a2cc401c4704a84328aeddc9ec < 7c0be4ead1f8f5f8be0803f347de0de81e3b8e1c |
| Linux | Linux | 6.12.96 < 6.12.109 |
| Linux | Linux | 6.13.2 < 6.13.3 |
| linux | linux_kernel | 6.13.2 |