What happened
Local privilege escalation in Linux kernel rtmutex remove_waiter via use-after-free.
Affected versions
Linux: 8161239a8bcce9ad6b537c04a1fa3b5c68bae693 through before f3fa3424bceb128d2be4b3745506b22844b87db7 (git); 8161239a8bcce9ad6b537c04a1fa3b5c68bae693 through before 838ce5cb5d93c3ab8b27e75bc6ad905a94b752fd (git); 8161239a8bcce9ad6b537c04a1fa3b5c68bae693 through before d8cce4773c2b23d819baf5abedc62f7b430e8745 (git); 8161239a8bcce9ad6b537c04a1fa3b5c68bae693 through before 8a1fc8d698ac5e5916e3082a0f74450d71f9611f (git); 8161239a8bcce9ad6b537c04a1fa3b5c68bae693 through before 6d52dfcb2a5db86e346cf51f8fcf2071b8085166 (git); 8161239a8bcce9ad6b537c04a1fa3b5c68bae693 through before 3fb7394a837740770f0d6b4b30567e60786a63f2 (git); 8161239a8bcce9ad6b537c04a1fa3b5c68bae693 through before 88614876370aac8ad1050ad785a4c095ba17ac11 (git); 8161239a8bcce9ad6b537c04a1fa3b5c68bae693 through before 3bfdc63936dd4773109b7b8c280c0f3b5ae7d349 (git); 2.6.39; V3.1.6 through before * (custom); V3.1.7 through before * (custom); before * (custom) Fixed: See vendor advisory.
Why it matters
This source correlation may provide earlier visibility while structured CVE metadata is still being updated.
Detection & mitigation
- Review the original advisory and validate affected versions.
- Apply vendor-provided updates or mitigations when available.