CVE-2024-57946

MEDIUM EPSS 5.8%
Published Jan 21, 20251y ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Jan 21, 2025 1y ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: virtio-blk: don't keep queue frozen during system suspend Commit 4ce6e2db00de ("virtio-blk: Ensure no requests in virtqueues before deleting vqs.") replaces queue quiesce with queue freeze in virtio-blk's PM callbacks. And the motivation is to drain inflight IOs before suspending. block layer's queue freeze looks very handy, but it is also easy to cause deadlock, such as, any attempt to call into bio_queue_enter() may run into deadlock if the queue is frozen in current context. There are all kinds of ->suspend() called in suspend context, so keeping queue frozen in the whole suspend context isn't one good idea. And Marek reported lockdep warning[1] caused by virtio-blk's freeze queue in virtblk_freeze(). [1] https://lore.kernel.org/linux-block/ca16370e-d646-4eee-b9cc-87277c89c43c@samsung.com/ Given the motivation is to drain in-flight IOs, it can be done by calling freeze & unfreeze, meantime restore to previous behavior by keeping queue quiesced during suspend.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
5.8% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-667

Affected Products 12

VendorProductVersionRange
linuxlinux_kernel* <5.4.289
linuxlinux_kernel*≥5.5  –  <5.10.233
linuxlinux_kernel*≥5.11  –  <5.15.176
linuxlinux_kernel*≥5.16  –  <6.1.123
linuxlinux_kernel*≥6.2  –  <6.6.69
linuxlinux_kernel*≥6.7  –  <6.12.8
linuxlinux_kernel6.13any
linuxlinux_kernel6.13any
linuxlinux_kernel6.13any
linuxlinux_kernel6.13any
linuxlinux_kernel6.13any
linuxlinux_kernel6.13any

References 9

  • git.kernel.org https://git.kernel.org/stable/c/12c0ddd6c551c1e438b087f874b4f1223a75f7ea
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6dea8e3de59928974bf157dd0499d3958d744ae4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7678abee0867e6b7fb89aa40f6e9f575f755fb37
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/92d5139b91147ab372a17daf5dc27a5b9278e516
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9ca428c6397abaa8c38f5c69133a2299e1efbbf2
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9e323f856cf4963120e0e3892a84ef8bd764a0e4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d738f3215bb4f88911ff4579780a44960c8e0ca5
    Patch
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/12c0ddd6c551c1e438b087f874b4f1223a75f7ea
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6dea8e3de59928974bf157dd0499d3958d744ae4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7678abee0867e6b7fb89aa40f6e9f575f755fb37
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/92d5139b91147ab372a17daf5dc27a5b9278e516
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9ca428c6397abaa8c38f5c69133a2299e1efbbf2
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9e323f856cf4963120e0e3892a84ef8bd764a0e4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d738f3215bb4f88911ff4579780a44960c8e0ca5
    Patch