What’s Vulnerable › Vulnerabilities

CVE-2026-81006: ipmi: Remove all sysfs files on registration failure

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-11 · updated 2026-10-19

Description

In the Linux kernel, the following vulnerability has been resolved: ipmi: Remove all sysfs files on registration failure ipmi_add_smi() creates the nr_users and nr_msgs files before trying to create the maintenance_mode file. If that last creation fails, the error path removes only nr_users before dropping the final reference to the interface. Remove nr_msgs as well so no sysfs attribute embedded in the freed interface remains registered.

Affected products

• Linux kernel: 6.18 — fixed in 7.3

How to fix

Upgrade to a fixed version: Linux kernel 7.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/b115b7d06f26b3f000d2afda88acb54c7a7cb2c9
• https://git.kernel.org/stable/c/b6c46ab0bdee90c238e96ea4a74972118c97900d
• https://git.kernel.org/stable/c/d46c97eddcbc53ca885e8bb359930c58884616ff

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