Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: firmware: arm_scmi: Unwind P2A receiver mailbox setup failure mailbox_chan_setup() can request an additional P2A receiver channel after successfully acquiring the primary P2A channel. If that later request fails, the function returns immediately and leaves the primary channel allocated. Unwind the primary mailbox channel before returning the error so probe deferral or other setup failures do not leave the channel busy for later probe attempts.
References
- https://git.kernel.org/stable/c/3515aed7fe424b79c49ff9cd51f7802a64a4ab7b
- https://git.kernel.org/stable/c/3b0b02134ab90202af80b102fa37196b9689e86f
- https://git.kernel.org/stable/c/4c2a5d72357e5c6743c23b59615da287140d9d31
- https://git.kernel.org/stable/c/f3e3773c4e5e96549d7540d8ddeb4fcd534f6f1d
FAQ
What is CVE-2026-93082?
CVE-2026-93082 is a documented vulnerability. In the Linux kernel, the following vulnerability has been resolved: firmware: arm_scmi: Unwind P2A receiver mailbox setup failure mailbox_chan_setup() can request an additional P2A receiver channel ...
How severe is CVE-2026-93082?
CVSS scoring is not yet available for CVE-2026-93082. Check NVD for updates.
Is there a patch for CVE-2026-93082?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.