{"api_version":"1","generated_at":"2026-08-28T14:43:07+00:00","cve":"CVE-2026-80657","urls":{"html":"https://cve.report/CVE-2026-80657","api":"https://cve.report/api/cve/CVE-2026-80657.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-80657","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-80657"},"summary":{"title":"accel/amdxdna: Guard management mailbox channel cleanup against NULL pointer","description":"In the Linux kernel, the following vulnerability has been resolved:\n\naccel/amdxdna: Guard management mailbox channel cleanup against NULL pointer\n\nThe management mailbox channel cleanup helpers can be called from\nerror handling paths when mgmt_chann has already been destroyed.\n\nAdd NULL checks to xdna_mailbox_free_channel() and\nxdna_mailbox_stop_channel() so the cleanup path safely returns instead\nof dereferencing a NULL mailbox channel pointer.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-28 08:16:50","updated_at":"2026-08-28 08:16:50"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/506255d46bdb93a281cf39e72abbca124f5c7a1b","name":"https://git.kernel.org/stable/c/506255d46bdb93a281cf39e72abbca124f5c7a1b","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/83d6d375f357ed2702b28d739511aad56d485de7","name":"https://git.kernel.org/stable/c/83d6d375f357ed2702b28d739511aad56d485de7","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-80657","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80657","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b87f920b934426a24d54613f12ed67c03ae05024 83d6d375f357ed2702b28d739511aad56d485de7 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b87f920b934426a24d54613f12ed67c03ae05024 506255d46bdb93a281cf39e72abbca124f5c7a1b git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.14","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.14 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.5 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/accel/amdxdna/amdxdna_mailbox.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"83d6d375f357ed2702b28d739511aad56d485de7","status":"affected","version":"b87f920b934426a24d54613f12ed67c03ae05024","versionType":"git"},{"lessThan":"506255d46bdb93a281cf39e72abbca124f5c7a1b","status":"affected","version":"b87f920b934426a24d54613f12ed67c03ae05024","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/accel/amdxdna/amdxdna_mailbox.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.14"},{"lessThan":"6.14","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.5","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.5","versionStartIncluding":"6.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2","versionStartIncluding":"6.14","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\naccel/amdxdna: Guard management mailbox channel cleanup against NULL pointer\n\nThe management mailbox channel cleanup helpers can be called from\nerror handling paths when mgmt_chann has already been destroyed.\n\nAdd NULL checks to xdna_mailbox_free_channel() and\nxdna_mailbox_stop_channel() so the cleanup path safely returns instead\nof dereferencing a NULL mailbox channel pointer."}],"providerMetadata":{"dateUpdated":"2026-08-28T06:49:03.200Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/83d6d375f357ed2702b28d739511aad56d485de7"},{"url":"https://git.kernel.org/stable/c/506255d46bdb93a281cf39e72abbca124f5c7a1b"}],"title":"accel/amdxdna: Guard management mailbox channel cleanup against NULL pointer","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-80657","datePublished":"2026-08-28T06:49:03.200Z","dateReserved":"2026-08-26T14:34:25.780Z","dateUpdated":"2026-08-28T06:49:03.200Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-28 08:16:50","lastModifiedDate":"2026-08-28 08:16:50","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"80657","Ordinal":"1","Title":"accel/amdxdna: Guard management mailbox channel cleanup against ","CVE":"CVE-2026-80657","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"80657","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\naccel/amdxdna: Guard management mailbox channel cleanup against NULL pointer\n\nThe management mailbox channel cleanup helpers can be called from\nerror handling paths when mgmt_chann has already been destroyed.\n\nAdd NULL checks to xdna_mailbox_free_channel() and\nxdna_mailbox_stop_channel() so the cleanup path safely returns instead\nof dereferencing a NULL mailbox channel pointer.","Type":"Description","Title":"accel/amdxdna: Guard management mailbox channel cleanup against "}]}}}