CVE-2024-26917: scsi: Revert "scsi: fcoe: Fix potential deadlock on &fip->ctlr_lock"

Severity: medium (CVSS 5.5 v3.1)
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: 2024-04-17 · updated 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: scsi: Revert "scsi: fcoe: Fix potential deadlock on &fip->ctlr_lock" This reverts commit 1a1975551943f681772720f639ff42fbaa746212. This commit causes interrupts to be lost for FCoE devices, since it changed sping locks from "bh" to "irqsave". Instead, a work queue should be used, and will be addressed in a separate commit.

Affected products

Debian Linux: 10.0
Linux kernel: from 4.14.326 before 4.15; from 4.19.295 before 4.19.307; from 5.4.257 before 5.4.269; from 5.10.195 before 5.10.210; from 5.15.132 before 5.15.149; from 6.1.53 before 6.1.79 — fixed in 4.15, 4.19.307, 5.10.210, 5.15.149, 5.4.269, 6.1.79

How to fix

Upgrade to a fixed version: Linux kernel 4.15, 4.19.307, 5.10.210, 5.15.149. Check the vendor advisory for mitigations.

References

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