{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-98632", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.361Z", "datePublished": "2026-10-18T15:19:56.287Z", "dateUpdated": "2026-10-19T09:23:00.460Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T09:23:00.460Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: mgmt: Dequeue pending mesh_send_sync entries on cancel\n\nIn send_cancel(), pending mesh_tx objects are removed from the\nhdev->mesh_pending list and freed via mesh_send_complete(). However, if\na mesh transmission was already queued onto hdev->cmd_sync_work_list via\nmesh_next(), the queued entry retains a raw pointer to mesh_tx.\n\nWhen hci_cmd_sync_work later processes the entry, it attempts to execute\nmesh_send_sync and its destroy callback mesh_send_start_complete using\nthe already freed mesh_tx pointer, leading to a use-after-free.\n\nFix this by invoking hci_cmd_sync_dequeue() for mesh_send_sync on the\ntarget mesh_tx before completing it. If the entry is found and dequeued,\nits destroy callback will complete and free the object; otherwise,\nmesh_send_complete() is called directly.\n\nAdditionally, ensure the transmission queue advances after cancellation\nor errors. In mesh_send_start_complete(), call mesh_next() on error\nunless err is -ECANCELED, because hci_cmd_sync_dequeue() holds\nhdev->cmd_sync_work_lock and calling mesh_next() synchronously would\ndeadlock. Instead, advance the queue in send_cancel() once the lock is\nreleased and if no transmission is in progress." } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "net/bluetooth/mgmt.c" ], "versions": [ { "version": "b338d91703fae6f6afd67f3f75caa3b8f36ddef3", "lessThan": "f84e52829021d00bca8e067302f597c71af1f71a", "status": "affected", "versionType": "git" }, { "version": "b338d91703fae6f6afd67f3f75caa3b8f36ddef3", "lessThan": "718a8ffa180d469f99ad4f746f00cafd39456415", "status": "affected", "versionType": "git" }, { "version": "b338d91703fae6f6afd67f3f75caa3b8f36ddef3", "lessThan": "084be90948632a5a358821e687b11a14445aae76", "status": "affected", "versionType": "git" }, { "version": "b338d91703fae6f6afd67f3f75caa3b8f36ddef3", "lessThan": "2189a219397d8e73808a67c4aade837b635705da", "status": "affected", "versionType": "git" }, { "version": "b338d91703fae6f6afd67f3f75caa3b8f36ddef3", "lessThan": "03ced4687fb79286be7fdee0fc58d2c74de3e7bb", "status": "affected", "versionType": "git" }, { "version": "b338d91703fae6f6afd67f3f75caa3b8f36ddef3", "lessThan": "71af682ba4692c2ed9ace4c3d4ca462ae368c029", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "net/bluetooth/mgmt.c" ], "versions": [ { "version": "6.1", "status": "affected" }, { "version": "0", "lessThan": "6.1", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.189", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.158", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.112", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.18.55", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.2.9", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.3", "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": "6.1", "versionEndExcluding": "6.1.189" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1", "versionEndExcluding": "6.6.158" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1", "versionEndExcluding": "6.12.112" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1", "versionEndExcluding": "6.18.55" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1", "versionEndExcluding": "7.2.9" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1", "versionEndExcluding": "7.3" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/f84e52829021d00bca8e067302f597c71af1f71a" }, { "url": "https://git.kernel.org/stable/c/718a8ffa180d469f99ad4f746f00cafd39456415" }, { "url": "https://git.kernel.org/stable/c/084be90948632a5a358821e687b11a14445aae76" }, { "url": "https://git.kernel.org/stable/c/2189a219397d8e73808a67c4aade837b635705da" }, { "url": "https://git.kernel.org/stable/c/03ced4687fb79286be7fdee0fc58d2c74de3e7bb" }, { "url": "https://git.kernel.org/stable/c/71af682ba4692c2ed9ace4c3d4ca462ae368c029" } ], "title": "Bluetooth: mgmt: Dequeue pending mesh_send_sync entries on cancel", "x_generator": { "engine": "bippy-1.2.0" } } } }