CVE-2026-93082
Unknown
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.
SeverityUnknown
CVSS—
Exploit probability—
Product
Linux
PublishedSep 17, 2026
First seenSep 17, 2026
How to fix
Update
- Linux Linux4c2a5d72357e5c6743c23b59615da287140d9d31, 3b0b02134ab90202af80b102fa37196b9689e86f, 3515aed7fe424b79c49ff9cd51f7802a64a4ab7b, f3e3773c4e5e96549d7540d8ddeb4fcd534f6f1d or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | fa8b28ba22d95be4d2dd3c37fbdbdc066af82941 ≤ v < 4c2a5d72357e5c6743c23b59615da287140d9d31, fa8b28ba22d95be4d2dd3c37fbdbdc066af82941 ≤ v < 3b0b02134ab90202af80b102fa37196b9689e86f, fa8b28ba22d95be4d2dd3c37fbdbdc066af82941 ≤ v < 3515aed7fe424b79c49ff9cd51f7802a64a4ab7b, fa8b28ba22d95be4d2dd3c37fbdbdc066af82941 ≤ v < f3e3773c4e5e96549d7540d8ddeb4fcd534f6f1d, 6.11 | 4c2a5d72357e5c6743c23b59615da287140d9d31, 3b0b02134ab90202af80b102fa37196b9689e86f, 3515aed7fe424b79c49ff9cd51f7802a64a4ab7b, f3e3773c4e5e96549d7540d8ddeb4fcd534f6f1d |
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