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CVE-2026-93082

Unknown

Last modified

CVE-2026-93082 is a vulnerability of currently unknown severity. 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..

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.

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= fa8b28ba22d95be4d2dd3c37fbdbdc066af82941, < 4c2a5d72357e5c6743c23b59615da287140d9d31; >= fa8b28ba22d95be4d2dd3c37fbdbdc066af82941, < 3b0b02134ab90202af80b102fa37196b9689e86f; >= fa8b28ba22d95be4d2dd3c37fbdbdc066af82941, < 3515aed7fe424b79c49ff9cd51f7802a64a4ab7b; >= fa8b28ba22d95be4d2dd3c37fbdbdc066af82941, < f3e3773c4e5e96549d7540d8ddeb4fcd534f6f1d
LinuxLinux6.11

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-93082?
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.
How severe is CVE-2026-93082?
Severity scoring for CVE-2026-93082 is pending analysis.
How do I fix CVE-2026-93082?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST