Riskcovery

CVE-2026-93082

firmware: arm_scmi: Unwind P2A receiver mailbox setup failure

State
Published
Severity
Not scored
Published
Sep 17, 2026
Updated
Oct 19, 2026
Reserved
Sep 17, 2026

Read the record on cve.org

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • fa8b28ba22d95be4d2dd3c37fbdbdc066af82941 to before 4c2a5d72357e5c6743c23b59615da287140d9d31Affected
  • fa8b28ba22d95be4d2dd3c37fbdbdc066af82941 to before 3b0b02134ab90202af80b102fa37196b9689e86fAffected
  • fa8b28ba22d95be4d2dd3c37fbdbdc066af82941 to before 3515aed7fe424b79c49ff9cd51f7802a64a4ab7bAffected
  • fa8b28ba22d95be4d2dd3c37fbdbdc066af82941 to before f3e3773c4e5e96549d7540d8ddeb4fcd534f6f1dAffected
LinuxLinux
  • 6.11Affected
  • before 6.11Not affected
  • 6.12.110 through 6.12.*Not affected
  • 6.18.52 through 6.18.*Not affected
  • 7.2.6 through 7.2.*Not affected
  • 7.3 and laterNot affected

References

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