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VulnerabilityPublished Updated

CVE-2024-57946: Linux kernel · virtio-blk: don't keep queue frozen during system suspend

Source GCVE Database

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Not known to be exploited · CVSS 5.5 Medium.

Data as of 30 Oct 2026, 01:01 UTC

CVSS 3.1 base score
5.5Medium
How severe the flaw is on the 0–10 CVSS scale.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 21 Jan 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

What to do

AI-suggested

A fix has been implemented in the Linux kernel that changes the suspend behavior to freeze and unfreeze the queue to drain in-flight IOs instead of keeping the queue frozen throughout suspend. Users should update to the fixed kernel version once available. No other mitigation or workaround is indicated.

Description

CVE-2024-57946 is a vulnerability in the Linux kernel's virtio-blk driver related to power management during system suspend. The issue involves the driver keeping the block queue frozen throughout the suspend process, which can cause deadlocks due to interactions with the block layer's queue freeze mechanism. The fix changes the behavior to drain in-flight IOs by freezing and unfreezing the queue rather than keeping it frozen for the entire suspend duration.

References

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