CVE-2026-93083
Description
AI Translation Available
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.
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