{"id":"CVE-2026-93082","revision":"32ea8faa7fab4afdb0943cde9e46c5ac","records":[{"revision":"32ea8faa7fab4afdb0943cde9e46c5ac","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-93082","aliases":[],"title":"firmware: arm_scmi: Unwind P2A receiver mailbox setup failure","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: arm_scmi: Unwind P2A receiver mailbox setup failure\n\nmailbox_chan_setup() can request an additional P2A receiver channel after\nsuccessfully acquiring the primary P2A channel. If that later request\nfails, the function returns immediately and leaves the primary channel\nallocated.\n\nUnwind the primary mailbox channel before returning the error so probe\ndeferral or other setup failures do not leave the channel busy for later\nprobe attempts.","state":0,"publishedAt":"2026-09-17T16:11:02.339+00:00","modifiedAt":"2026-10-19T09:05:17.992+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/firmware/arm_scmi/transports/mailbox.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"fa8b28ba22d95be4d2dd3c37fbdbdc066af82941\",\n                            \"lessThan\": \"4c2a5d72357e5c6743c23b59615da287140d9d31\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"fa8b28ba22d95be4d2dd3c37fbdbdc066af82941\",\n                            \"lessThan\": \"3b0b02134ab90202af80b102fa37196b9689e86f\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"fa8b28ba22d95be4d2dd3c37fbdbdc066af82941\",\n                            \"lessThan\": \"3515aed7fe424b79c49ff9cd51f7802a64a4ab7b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"fa8b28ba22d95be4d2dd3c37fbdbdc066af82941\",\n                            \"lessThan\": \"f3e3773c4e5e96549d7540d8ddeb4fcd534f6f1d\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/firmware/arm_scmi/transports/mailbox.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.11\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.11\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.110\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.52\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.6\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"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"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-93082","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-93082","identifiers":["CVE-2026-93082"]},"retained":false,"historicalAffected":[]}],"coverage":[]}