CVE-2025-21817 | BDVDB-2026-268554 Detail

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()

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History#

1. Version 12025-02-27Record published in the CVE List.
2. Version 22026-11-05Most recent update recorded in the CVE List.