CVE-2025-21690

MEDIUM5.5

scsi: storvsc: Ratelimit warning logs to prevent VM denial of service

Published Feb 10, 2025

Modified 1 weeks ago

No fix available

Details

In the Linux kernel, the following vulnerability has been resolved:

scsi: storvsc: Ratelimit warning logs to prevent VM denial of service

If there's a persistent error in the hypervisor, the SCSI warning for failed I/O can flood the kernel log and max out CPU utilization, preventing troubleshooting from the VM side. Ratelimit the warning so it doesn't DoS the VM.

References

WEBhttps://git.kernel.org/stable/c/01d1ebdab9ccb73c952e1666a8a80abd194dbc55 WEBhttps://git.kernel.org/stable/c/088bde862f8d3d0fc52e40e66a0484a246837087 WEBhttps://git.kernel.org/stable/c/182a4b7c731e95c08cb47f14b87a272b6ab2b2da WEBhttps://git.kernel.org/stable/c/81d4dd05c412ba04f9f6b85b718e6da833be290c WEBhttps://git.kernel.org/stable/c/d0f0af1bafef33b3e2aa8c3a4ef44db48df9b0ea WEBhttps://git.kernel.org/stable/c/d2138eab8cde61e0e6f62d0713e45202e8457d6d WEBhttps://lists.debian.org/debian-lts-announce/2025/03/msg00001.html ADVISORYhttps://www.cve.org/CVERecord?id=CVE-2025-21690

CVSS Analysis

CVSS v3.1

5.5

Exploitability

Attack Vector

LocalAV:L

Attack Complexity

LowAC:L

Privileges Required

LowPR:L

User Interaction

NoneUI:N

Scope

UnchangedS:U

Impact

Confidentiality

NoneC:N

Integrity

NoneI:N

Availability

HighA:H

5.5/CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Ecosystems

Timeline

PublishedFeb 10, 2025

ModifiedJan 2, 2026