CVE-2026-93082firmware: arm_scmi: Unwind P2A receiver mailbox setup failure
- —Not scoredno CVSS score yet
- 0.21%Exploitation in 30 daysEPSS · top 89% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By Linux
Published
- 32 days later
· 32 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- 0.21% · top 89% of all CVEs (14 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected fa8b28ba22d95be4d2dd3c37fbdbdc066af82941 – < 4c2a5d72357e5c6743c23b59615da287140d9d31
- affected fa8b28ba22d95be4d2dd3c37fbdbdc066af82941 – < 3b0b02134ab90202af80b102fa37196b9689e86f
- affected fa8b28ba22d95be4d2dd3c37fbdbdc066af82941 – < 3515aed7fe424b79c49ff9cd51f7802a64a4ab7b
- affected fa8b28ba22d95be4d2dd3c37fbdbdc066af82941 – < f3e3773c4e5e96549d7540d8ddeb4fcd534f6f1d
- affected 6.11
- unaffected < 6.11
- unaffected 6.12.110 – ≤ 6.12.*
- unaffected 6.18.52 – ≤ 6.18.*
- unaffected 7.2.6 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References4
- https://git.kernel.org/stable/c/4c2a5d72357e5c6743c23b59615da287140d9d31 (opens in a new tab)
- https://git.kernel.org/stable/c/3b0b02134ab90202af80b102fa37196b9689e86f (opens in a new tab)
- https://git.kernel.org/stable/c/3515aed7fe424b79c49ff9cd51f7802a64a4ab7b (opens in a new tab)
- https://git.kernel.org/stable/c/f3e3773c4e5e96549d7540d8ddeb4fcd534f6f1d (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-82192 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-93082)Record last updated .