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THREAT OPS › Threat News › [NVD] CVE-2025-21817 (MEDIUM 5.5) — 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

[NVD] CVE-2025-21817 (MEDIUM 5.5) — 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

lownvdPublished 2025-02-27

CVE-2025-21817 CVSS: 5.5 MEDIUM Published: 2025-02-27T20:16:04.243

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 potentia

Indicators of compromise

CVE-2025-21817cve

Original source: https://nvd.nist.gov/vuln/detail/CVE-2025-21817