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CVE-2026-93082

firmware: arm_scmi: Unwind P2A receiver mailbox setup failure

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 6.12.110, 6.18.52, 7.2.6
None on Exploit-DB, Metasploit or GitHub

Summary

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.

Timeline

  1. CVE published
  2. Record last updated

Affected versions

  • Linux Linux

    From fa8b28ba22d95be4d2dd3c37fbdbdc066af82941 · fixed in 4c2a5d72357e5c6743c23b59615da287140d9d31; From fa8b28ba22d95be4d2dd3c37fbdbdc066af82941 · fixed in 3b0b02134ab90202af80b102fa37196b9689e86f; From fa8b28ba22d95be4d2dd3c37fbdbdc066af82941 · fixed in 3515aed7fe424b79c49ff9cd51f7802a64a4ab7b; From fa8b28ba22d95be4d2dd3c37fbdbdc066af82941 · fixed in f3e3773c4e5e96549d7540d8ddeb4fcd534f6f1d

  • Linux Linux

    6.11

  • KernelLinux

    From 6.11.0 · fixed in 6.12.110; From 6.13.0 · fixed in 6.18.52; From 6.19.0 · fixed in 7.2.6

References 4

git.kernel.org