Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: firmware: arm_scmi: Unwind TX receiver mailbox setup failure mailbox_chan_setup() can request an additional unidirectional TX receiver channel after successfully acquiring the primary channel. If that second 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/6f7c06744d53dc8e047725d411d7f915d9ec35ae
- https://git.kernel.org/stable/c/717b8e972a667fc1bebe63cbcf0d58e692cbb491
- https://git.kernel.org/stable/c/9958f55eace8b43713c9fc54dcf90e7cdefee413
- https://git.kernel.org/stable/c/babb017cf5e4600c94c23ea87175a0380235a3ee
FAQ
What is CVE-2026-93083?
CVE-2026-93083 is a documented vulnerability. In the Linux kernel, the following vulnerability has been resolved: firmware: arm_scmi: Unwind TX receiver mailbox setup failure mailbox_chan_setup() can request an additional unidirectional TX rece...
How severe is CVE-2026-93083?
CVSS scoring is not yet available for CVE-2026-93083. Check NVD for updates.
Is there a patch for CVE-2026-93083?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.