CVE-2026-89897
Published: September 18, 2026Last modified: September 18, 2026
Description
In the Linux kernel, the following vulnerability has been resolved: media: cec: Serialize exclusive follower delivery cec_receive_notify() reads the exclusive follower pointer without the adapter lock. Serialize the no-follower check and message delivery against mode changes and release.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack Vector | ADJACENT_NETWORK |
| Attack complexity | HIGH |
| Privileges required | NONE |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity impact | HIGH |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Vulnerable (6.1.182-r0) |
| 25 LTS | linux-lts | Vulnerable (6.12.103-r0) | |
| Stream | linux-lts | Vulnerable (6.18.46-r0) |
References
- https://git.kernel.org/stable/c/1924d0788caa6c66fd320dd4704fae99487fd2c7
- https://git.kernel.org/stable/c/271e57a936dcdbaecb4b1bd005d9a285bbe60ab4
- https://git.kernel.org/stable/c/4b532b271c91790b7ab661cd488a7ad36f5c4f6b
- https://git.kernel.org/stable/c/5c62095acc2a952099688774513c4a637bcdb2b5
- https://git.kernel.org/stable/c/ae614f48712156fb0f55b207338d48d422c58bc0
- https://git.kernel.org/stable/c/cac577854826950dda4d53569728b1da6c1425d5
- https://git.kernel.org/stable/c/df941e6851da17fc53c7f6af2bdcc7383d17babc
- https://git.kernel.org/stable/c/efc829b4b937f98c4467bffe9243f756b7cfbf7f