CVE-2026-98295

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-98295", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.337Z", "datePublished": "2026-10-06T08:45:54.141Z", "dateUpdated": "2026-10-19T09:17:06.302Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T09:17:06.302Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: coredump: Quiesce dump work on unregister\n\nhci_devcd_handle_pkt_init() arms dump_timeout and coredump producers\nqueue dump_rx without holding an hdev reference. Unregister leaves both\nworks live, so disconnecting during an active dump lets them access hdev\nafter hci_release_dev() frees it.\n\nShut down coredump processing during unregister. Close the producer gate\nunder dump_q.lock before disabling both works, then free the active buffer\nand queued packets under hci_dev_lock. Serializing the gate with enqueue\nprevents controller-specific workers from adding packets after the final\npurge."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["include/net/bluetooth/coredump.h", "net/bluetooth/coredump.c", "net/bluetooth/hci_core.c"], "versions": [{"version": "9695ef876fd122cb7bbc04a4a93b8727d2e36bda", "lessThan": "24af375d7d8aa5f698e4dc41317102f44114351a", "status": "affected", "versionType": "git"}, {"version": "9695ef876fd122cb7bbc04a4a93b8727d2e36bda", "lessThan": "dcaf10ef27f928568c25de3e9fc242e538de5c67", "status": "affected", "versionType": "git"}, {"version": "9695ef876fd122cb7bbc04a4a93b8727d2e36bda", "lessThan": "82699d1b727ba5980b94f1eb8dc3d346f41b7c67", "status": "affected", "versionType": "git"}, {"version": "9695ef876fd122cb7bbc04a4a93b8727d2e36bda", "lessThan": "d236517c264e41dc09833c708ef23bccb7a91219", "status": "affected", "versionType": "git"}, {"version": "deb8156ebe5cb63a5988e7f86cc46aa062527c2b", "status": "affected", "versionType": "git"}, {"version": "6.1.188", "lessThan": "6.2", "status": "affected", "versionType": "semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["include/net/bluetooth/coredump.h", "net/bluetooth/coredump.c", "net/bluetooth/hci_core.c"], "versions": [{"version": "6.4", "status": "affected"}, {"version": "0", "lessThan": "6.4", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.112", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.54", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.8", "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": "6.4", "versionEndExcluding": "6.12.112"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.4", "versionEndExcluding": "6.18.54"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.4", "versionEndExcluding": "7.2.8"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.4", "versionEndExcluding": "7.3"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1.188"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/24af375d7d8aa5f698e4dc41317102f44114351a"}, {"url": "https://git.kernel.org/stable/c/dcaf10ef27f928568c25de3e9fc242e538de5c67"}, {"url": "https://git.kernel.org/stable/c/82699d1b727ba5980b94f1eb8dc3d346f41b7c67"}, {"url": "https://git.kernel.org/stable/c/d236517c264e41dc09833c708ef23bccb7a91219"}], "title": "Bluetooth: coredump: Quiesce dump work on unregister", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["include/net/bluetooth/coredump.h", "net/bluetooth/coredump.c", "net/bluetooth/hci_core.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "24af375d7d8aa5f698e4dc41317102f44114351a", "status": "affected", "version": "9695ef876fd122cb7bbc04a4a93b8727d2e36bda", "versionType": "git"}, {"lessThan": "dcaf10ef27f928568c25de3e9fc242e538de5c67", "status": "affected", "version": "9695ef876fd122cb7bbc04a4a93b8727d2e36bda", "versionType": "git"}, {"lessThan": "82699d1b727ba5980b94f1eb8dc3d346f41b7c67", "status": "affected", "version": "9695ef876fd122cb7bbc04a4a93b8727d2e36bda", "versionType": "git"}, {"lessThan": "d236517c264e41dc09833c708ef23bccb7a91219", "status": "affected", "version": "9695ef876fd122cb7bbc04a4a93b8727d2e36bda", "versionType": "git"}, {"status": "affected", "version": "deb8156ebe5cb63a5988e7f86cc46aa062527c2b", "versionType": "git"}, {"lessThan": "6.2", "status": "affected", "version": "6.1.188", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["include/net/bluetooth/coredump.h", "net/bluetooth/coredump.c", "net/bluetooth/hci_core.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.4"}, {"lessThan": "6.4", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.112", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.54", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.8", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: coredump: Quiesce dump work on unregister\n\nhci_devcd_handle_pkt_init() arms dump_timeout and coredump producers\nqueue dump_rx without holding an hdev reference. Unregister leaves both\nworks live, so disconnecting during an active dump lets them access hdev\nafter hci_release_dev() frees it.\n\nShut down coredump processing during unregister. Close the producer gate\nunder dump_q.lock before disabling both works, then free the active buffer\nand queued packets under hci_dev_lock. Serializing the gate with enqueue\nprevents controller-specific workers from adding packets after the final\npurge."}], "id": "CVE-2026-98295", "lastModified": "2026-10-19T10:18:31.283", "metrics": {}, "published": "2026-10-06T09:18:20.133", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/24af375d7d8aa5f698e4dc41317102f44114351a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/82699d1b727ba5980b94f1eb8dc3d346f41b7c67"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d236517c264e41dc09833c708ef23bccb7a91219"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/dcaf10ef27f928568c25de3e9fc242e538de5c67"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: Bluetooth: coredump: Quiesce dump work on unregister", "id": "2546505", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2546505"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-825", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nBluetooth: coredump: Quiesce dump work on unregister\nhci_devcd_handle_pkt_init() arms dump_timeout and coredump producers\nqueue dump_rx without holding an hdev reference. Unregister leaves both\nworks live, so disconnecting during an active dump lets them access hdev\nafter hci_release_dev() frees it.\nShut down coredump processing during unregister. Close the producer gate\nunder dump_q.lock before disabling both works, then free the active buffer\nand queued packets under hci_dev_lock. Serializing the gate with enqueue\nprevents controller-specific workers from adding packets after the final\npurge.", "A flaw was found in the Linux kernel's Bluetooth subsystem. A local user can cause a Denial of Service (DoS) or memory corruption by disconnecting a Bluetooth device during an active diagnostic crash dump. Because the system fails to cancel pending dump tasks upon device unregistration, background processes attempt to access the device data structure after it has been freed from memory, triggering a use-after-free condition."], "name": "CVE-2026-98295", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "package_name": "openshift/ose-rhel-coreos-8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "openshift/ose-rhel-coreos-9", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-10-06T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-98295\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-98295\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98295.mbox"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9695ef876fd122cb7bbc04a4a93b8727d2e36bda,24af375d7d8aa5f698e4dc41317102f44114351a)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9695ef876fd122cb7bbc04a4a93b8727d2e36bda,dcaf10ef27f928568c25de3e9fc242e538de5c67)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9695ef876fd122cb7bbc04a4a93b8727d2e36bda,82699d1b727ba5980b94f1eb8dc3d346f41b7c67)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9695ef876fd122cb7bbc04a4a93b8727d2e36bda,d236517c264e41dc09833c708ef23bccb7a91219)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "deb8156ebe5cb63a5988e7f86cc46aa062527c2b"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.1.188,6.2)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "6.4"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.4)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.112,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.54,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.8,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3-rc4,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-10-06T14:00:20.950633+00:00", "updated": "2026-10-11T18:45:19.289158+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}