CVE-2025-40192: Revert "ipmi: fix msg stack when IPMI is disconnected"

Severity: unknown
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-11-12 · updated 2026-10-19

Description

In the Linux kernel, the following vulnerability has been resolved: Revert "ipmi: fix msg stack when IPMI is disconnected" This reverts commit c608966f3f9c2dca596967501d00753282b395fc. This patch has a subtle bug that can cause the IPMI driver to go into an infinite loop if the BMC misbehaves in a certain way. Apparently certain BMCs do misbehave this way because several reports have come in recently about this.

Affected products

Linux kernel: 6.2 — fixed in 6.18

How to fix

Upgrade to a fixed version: Linux kernel 6.18. Check the vendor advisory for mitigations.

References

https://git.kernel.org/stable/c/5d09ee1bec870263f4ace439402ea840503b503b
https://git.kernel.org/stable/c/8cf5c24533b8058910fcb83a25a9cf0306383780
https://git.kernel.org/stable/c/b9cc7155e65f6feca51bfedd543b9bd300e2be2b
https://git.kernel.org/stable/c/f4aab940ae9eb3ba32e5332b35703673f00d7f37

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