KEYS: Fix key_reject_and_link() race with keyring restriction
CVE-2026-99245 is fixed in linux on 1 platform, first by DEBIAN-CVE-2026-99245, released November 3, 2026. It is not reported as exploited. Patch Radar priority: Routine.
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().
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| linux · Debian 13.5 (trixie) | 6.12.115-1 | DEBIAN-CVE-2026-99245 | Nov 3, 2026 |
| linux · Debian 14 | 7.2.14-1 | DEBIAN-CVE-2026-99245 | Nov 3, 2026 |
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