Riskcovery

CVE-2026-93083

firmware: arm_scmi: Unwind TX receiver mailbox setup failure

State
Published
Severity
Not scored
Published
Sep 17, 2026
Updated
Oct 21, 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 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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 9f68ff79ec2cb303f360a35eef5dd8f1f0f817e1 to before d4cf99c7ea95accde58df34bc8636bbebb3066c2Affected
  • 9f68ff79ec2cb303f360a35eef5dd8f1f0f817e1 to before babb017cf5e4600c94c23ea87175a0380235a3eeAffected
  • 9f68ff79ec2cb303f360a35eef5dd8f1f0f817e1 to before 717b8e972a667fc1bebe63cbcf0d58e692cbb491Affected
  • 9f68ff79ec2cb303f360a35eef5dd8f1f0f817e1 to before 9958f55eace8b43713c9fc54dcf90e7cdefee413Affected
  • 9f68ff79ec2cb303f360a35eef5dd8f1f0f817e1 to before 6f7c06744d53dc8e047725d411d7f915d9ec35aeAffected
LinuxLinux
  • 6.4Affected
  • before 6.4Not affected
  • 6.6.160 through 6.6.*Not 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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