CVE-2025-21817
N/A
N/A
Summary
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()
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 8985da5481562e96b95e94ed8e5cc9b6565eb82b < 2566ce907e5d5db8a039647208e029ce559baa31 | affected |
| Linux | Linux | c99f66e4084a62a2cc401c4704a84328aeddc9ec < 7c0be4ead1f8f5f8be0803f347de0de81e3b8e1c | affected |
| Linux | Linux | 6.13.2 < 6.13.3 | affected |
Weaknesses
References
- https://git.kernel.org/stable/c/2566ce907e5d5db8a039647208e029ce559baa31
- https://git.kernel.org/stable/c/7c0be4ead1f8f5f8be0803f347de0de81e3b8e1c
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