CVE-2026-99245 — Vulnerability intelligence
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Published:
- CVSS
- Not available
- CISA KEV
- Not listed; not proof of no exploitation
Original source text (not a translation)
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().