CVE-2026-93082firmware: arm_scmi: Unwind P2A receiver mailbox setup failure
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 19, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from fa8b28ba22d95be4d2dd3c37fbdbdc066af82941 before 4c2a5d72357e5c6743c23b59615da287140d9d31; from fa8b28ba22d95be4d2dd3c37fbdbdc066af82941 before 3b0b02134ab90202af80b102fa37196b9689e86f; from fa8b28ba22d95be4d2dd3c37fbdbdc066af82941 before 3515aed7fe424b79c49ff9cd51f7802a64a4ab7b; from fa8b28ba22d95be4d2dd3c37fbdbdc066af82941 before f3e3773c4e5e96549d7540d8ddeb4fcd534f6f1d | CNA record |
References
- https://git.kernel.org/stable/c/4c2a5d72357e5c6743c23b59615da287140d9d31
- https://git.kernel.org/stable/c/3b0b02134ab90202af80b102fa37196b9689e86f
- https://git.kernel.org/stable/c/3515aed7fe424b79c49ff9cd51f7802a64a4ab7b
- https://git.kernel.org/stable/c/f3e3773c4e5e96549d7540d8ddeb4fcd534f6f1d
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.