{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-80657","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-08-26T14:34:25.780Z","datePublished":"2026-08-28T06:49:03.200Z","dateUpdated":"2026-08-28T06:49:03.200Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-08-28T06:49:03.200Z"},"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."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/accel/amdxdna/amdxdna_mailbox.c"],"versions":[{"version":"b87f920b934426a24d54613f12ed67c03ae05024","lessThan":"83d6d375f357ed2702b28d739511aad56d485de7","status":"affected","versionType":"git"},{"version":"b87f920b934426a24d54613f12ed67c03ae05024","lessThan":"506255d46bdb93a281cf39e72abbca124f5c7a1b","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/accel/amdxdna/amdxdna_mailbox.c"],"versions":[{"version":"6.14","status":"affected"},{"version":"0","lessThan":"6.14","status":"unaffected","versionType":"semver"},{"version":"7.1.5","lessThanOrEqual":"7.1.*","status":"unaffected","versionType":"semver"},{"version":"7.2","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.14","versionEndExcluding":"7.1.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.14","versionEndExcluding":"7.2"}]}]}],"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"}}}}