{"id":"CVE-2026-90253","state":"PUBLISHED","title":"Bluetooth: MGMT: free the mesh send cancel command when it is cancelled","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: MGMT: free the mesh send cancel command when it is cancelled\n\nmesh_send_cancel() queues the pending command with a NULL destroy\ncallback, so it is only freed if send_cancel() runs. A cancelled entry is\nleaked, as _hci_cmd_sync_cancel_entry() does not release entry->data when\nthere is no destroy callback, and hci_cmd_sync_clear() cancels every\npending entry when the controller is unregistered. Nothing else reclaims\nit either: mgmt_pending_new() does not put the command on\nhdev->mgmt_pending.\n\nThe leak also pins the socket reference taken by mgmt_pending_new(), so\nthe mgmt socket is never released.\n\nFree the command from a destroy callback.","publishedAt":"2026-09-17T16:07:53.435Z","updatedAt":"2026-10-19T09:00:30.044Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"b338d91703fae6f6afd67f3f75caa3b8f36ddef3","status":"affected","lessThan":"b609341ee56967d9a45845ff26f79336d2114b55","versionType":"git"},{"version":"b338d91703fae6f6afd67f3f75caa3b8f36ddef3","status":"affected","lessThan":"416fabca9b7237b76aa9cafcf8c497b8ac00d88c","versionType":"git"},{"version":"b338d91703fae6f6afd67f3f75caa3b8f36ddef3","status":"affected","lessThan":"88e30d036d777b00aed42bd35000de23ff40910c","versionType":"git"},{"version":"b338d91703fae6f6afd67f3f75caa3b8f36ddef3","status":"affected","lessThan":"05438d338a875a9daa08ca3f6a35b4480cf13de4","versionType":"git"},{"version":"b338d91703fae6f6afd67f3f75caa3b8f36ddef3","status":"affected","lessThan":"fa46d428c014e7b72a18634679815670418e67dc","versionType":"git"},{"version":"b338d91703fae6f6afd67f3f75caa3b8f36ddef3","status":"affected","lessThan":"3c742feda8fcabf741a17bcf668b63c8f606f9c5","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/bluetooth/mgmt.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.1","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.1","versionType":"semver"},{"version":"6.1.188","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.157","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.110","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.52","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.6","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/bluetooth/mgmt.c"]}],"references":["https://git.kernel.org/stable/c/b609341ee56967d9a45845ff26f79336d2114b55","https://git.kernel.org/stable/c/416fabca9b7237b76aa9cafcf8c497b8ac00d88c","https://git.kernel.org/stable/c/88e30d036d777b00aed42bd35000de23ff40910c","https://git.kernel.org/stable/c/05438d338a875a9daa08ca3f6a35b4480cf13de4","https://git.kernel.org/stable/c/fa46d428c014e7b72a18634679815670418e67dc","https://git.kernel.org/stable/c/3c742feda8fcabf741a17bcf668b63c8f606f9c5"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:34.582Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/90xxx/CVE-2026-90253.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-90253","state":"PUBLISHED","datePublished":"2026-09-17T16:07:53.435Z","dateUpdated":"2026-10-19T09:00:30.044Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-11T19:38:34.796Z"},"containers":{"cna":{"title":"Bluetooth: MGMT: free the mesh send cancel command when it is cancelled","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: MGMT: free the mesh send cancel command when it is cancelled\n\nmesh_send_cancel() queues the pending command with a NULL destroy\ncallback, so it is only freed if send_cancel() runs. A cancelled entry is\nleaked, as _hci_cmd_sync_cancel_entry() does not release entry->data when\nthere is no destroy callback, and hci_cmd_sync_clear() cancels every\npending entry when the controller is unregistered. Nothing else reclaims\nit either: mgmt_pending_new() does not put the command on\nhdev->mgmt_pending.\n\nThe leak also pins the socket reference taken by mgmt_pending_new(), so\nthe mgmt socket is never released.\n\nFree the command from a destroy callback."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"b338d91703fae6f6afd67f3f75caa3b8f36ddef3","status":"affected","lessThan":"b609341ee56967d9a45845ff26f79336d2114b55","versionType":"git"},{"version":"b338d91703fae6f6afd67f3f75caa3b8f36ddef3","status":"affected","lessThan":"416fabca9b7237b76aa9cafcf8c497b8ac00d88c","versionType":"git"},{"version":"b338d91703fae6f6afd67f3f75caa3b8f36ddef3","status":"affected","lessThan":"88e30d036d777b00aed42bd35000de23ff40910c","versionType":"git"},{"version":"b338d91703fae6f6afd67f3f75caa3b8f36ddef3","status":"affected","lessThan":"05438d338a875a9daa08ca3f6a35b4480cf13de4","versionType":"git"},{"version":"b338d91703fae6f6afd67f3f75caa3b8f36ddef3","status":"affected","lessThan":"fa46d428c014e7b72a18634679815670418e67dc","versionType":"git"},{"version":"b338d91703fae6f6afd67f3f75caa3b8f36ddef3","status":"affected","lessThan":"3c742feda8fcabf741a17bcf668b63c8f606f9c5","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/bluetooth/mgmt.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.1","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.1","versionType":"semver"},{"version":"6.1.188","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.157","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.110","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.52","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.6","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/bluetooth/mgmt.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/b609341ee56967d9a45845ff26f79336d2114b55"},{"url":"https://git.kernel.org/stable/c/416fabca9b7237b76aa9cafcf8c497b8ac00d88c"},{"url":"https://git.kernel.org/stable/c/88e30d036d777b00aed42bd35000de23ff40910c"},{"url":"https://git.kernel.org/stable/c/05438d338a875a9daa08ca3f6a35b4480cf13de4"},{"url":"https://git.kernel.org/stable/c/fa46d428c014e7b72a18634679815670418e67dc"},{"url":"https://git.kernel.org/stable/c/3c742feda8fcabf741a17bcf668b63c8f606f9c5"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-19T09:00:30.044Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1","versionEndExcluding":"6.1.188"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1","versionEndExcluding":"6.6.157"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1","versionEndExcluding":"6.12.110"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1","versionEndExcluding":"6.18.52"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1","versionEndExcluding":"7.2.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}