CVE-2026-89883
Published: September 18, 2026Last modified: September 18, 2026
Description
In the Linux kernel, the following vulnerability has been resolved: media: rc: sunxi-cir: Unregister rc device on probe failure After rc_register_device() succeeds, later probe failures must undo the registration with rc_unregister_device(). The current error path jumps to the allocation cleanup label and only calls rc_free_device(), leaving the rc device registration and resources created by rc_register_device() behind. Add a registered-device unwind label for the IRQ lookup, IRQ request, and hardware initialization failure paths. Keep rc_free_device() for failures before rc_register_device() succeeds.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.8 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity impact | HIGH |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/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/4655a591478e4b31a3396695a2457daad9d4c899
- https://git.kernel.org/stable/c/479aa6fa8c50f1052f1451326ef7d4d586d340c3
- https://git.kernel.org/stable/c/4efd7146dcf959afe64e9c51531cd8f82e60eab6
- https://git.kernel.org/stable/c/59951b8a87ef4fb4b5b9409f70ba07663681a040
- https://git.kernel.org/stable/c/5b58d8c206f37525c8217171e1f3e91dd2fa55e5
- https://git.kernel.org/stable/c/5e6f5bffaa80fc8ecce348ec0e34fed9d843e47e
- https://git.kernel.org/stable/c/826763adbd8bd3137c5b3756650da473dc6216d5