| From bippy-5f407fcff5a0 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org> |
| Subject: CVE-2025-21690: scsi: storvsc: Ratelimit warning logs to prevent VM denial of service |
| |
| Description |
| =========== |
| |
| 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. |
| |
| The Linux kernel CVE team has assigned CVE-2025-21690 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Fixed in 5.15.178 with commit 81d4dd05c412ba04f9f6b85b718e6da833be290c |
| Fixed in 6.1.128 with commit 182a4b7c731e95c08cb47f14b87a272b6ab2b2da |
| Fixed in 6.6.75 with commit 088bde862f8d3d0fc52e40e66a0484a246837087 |
| Fixed in 6.12.12 with commit 01d1ebdab9ccb73c952e1666a8a80abd194dbc55 |
| Fixed in 6.13.1 with commit d0f0af1bafef33b3e2aa8c3a4ef44db48df9b0ea |
| Fixed in 6.14 with commit d2138eab8cde61e0e6f62d0713e45202e8457d6d |
| |
| Please see https://www.kernel.org for a full list of currently supported |
| kernel versions by the kernel community. |
| |
| Unaffected versions might change over time as fixes are backported to |
| older supported kernel versions. The official CVE entry at |
| https://cve.org/CVERecord/?id=CVE-2025-21690 |
| will be updated if fixes are backported, please check that for the most |
| up to date information about this issue. |
| |
| |
| Affected files |
| ============== |
| |
| The file(s) affected by this issue are: |
| drivers/scsi/storvsc_drv.c |
| |
| |
| Mitigation |
| ========== |
| |
| The Linux kernel CVE team recommends that you update to the latest |
| stable kernel version for this, and many other bugfixes. Individual |
| changes are never tested alone, but rather are part of a larger kernel |
| release. Cherry-picking individual commits is not recommended or |
| supported by the Linux kernel community at all. If however, updating to |
| the latest release is impossible, the individual changes to resolve this |
| issue can be found at these commits: |
| 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 |
