CVE-2026-99245

What it is

In the Linux kernel, the following vulnerability has been resolved: KEYS: Fix key_reject_and_link() race with keyring restriction The restrict_link check in key_reject_and_link() is done before taking the keyring semaphore, racing with a concurrent keyring_restrict() that installs the restriction while holding the semaphore in write mode. Move the check to after __key_link_lock(), so it is done under the semaphore, matching the pattern used in __key_create_or_update().

At a glance

Exploit odds

0.2% chance of exploitation in the next 30 days (EPSS).

Fix

No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

1. 2026-11-03 12:17 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-11-03 20:18 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 0.2% in the next 30 days (EPSS).
• Severity: not scored yet.
• Fix: none linked yet, which raises it.

Details

Published

2026-11-03 12:17 UTC

Last modified

2026-11-03 20:18 UTC

Exploit probability

0.2% · EPSS, next 30 days

Record status

Received

Is it in your code?

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Read https://cve-list.com/agent/cve/CVE-2026-99245.md and follow it. Check whether this project is affected by CVE-2026-99245. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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