CVE-2025-21690: scsi: storvsc: Ratelimit warning logs to prevent VM denial of service
First published: Mon Feb 10 2025(Updated: )
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.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | ||
| Linux Kernel | <5.15.178 | |
| Linux Kernel | >=5.16<6.1.128 | |
| Linux Kernel | >=6.2<6.6.75 | |
| Linux Kernel | >=6.7<6.12.12 | |
| Linux Kernel | =6.13 | |
| Linux Kernel | =6.13-rc1 | |
| Linux Kernel | =6.13-rc2 | |
| Linux Kernel | =6.13-rc3 | |
| Linux Kernel | =6.13-rc4 | |
| Linux Kernel | =6.13-rc5 | |
| Linux Kernel | =6.13-rc6 | |
| Linux Kernel | =6.13-rc7 |
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Reference Links
- https://git.kernel.org/stable/c/81d4dd05c412ba04f9f6b85b718e6da833be290c
- https://git.kernel.org/stable/c/182a4b7c731e95c08cb47f14b87a272b6ab2b2da
- https://git.kernel.org/stable/c/088bde862f8d3d0fc52e40e66a0484a246837087
- https://git.kernel.org/stable/c/01d1ebdab9ccb73c952e1666a8a80abd194dbc55
- https://git.kernel.org/stable/c/d0f0af1bafef33b3e2aa8c3a4ef44db48df9b0ea
- https://git.kernel.org/stable/c/d2138eab8cde61e0e6f62d0713e45202e8457d6d
Frequently Asked Questions
What is the severity of CVE-2025-21690?
CVE-2025-21690 is labeled with a severity rating that highlights its potential impact on system performance due to excessive CPU utilization.
How do I fix CVE-2025-21690?
Fixing CVE-2025-21690 involves updating to the latest version of the Linux kernel that includes the patches for this vulnerability.
What systems are affected by CVE-2025-21690?
CVE-2025-21690 affects systems running the Linux Kernel, particularly those utilizing SCSI storage drivers.
What are the consequences of CVE-2025-21690 exploitation?
Exploitation of CVE-2025-21690 can lead to a denial of service by flooding kernel logs and exhausting CPU resources.
When was CVE-2025-21690 discovered?
CVE-2025-21690 was identified in the context of various Linux kernel releases and has been addressed in subsequent updates.
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