CVE-2026-98297

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-98297", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.337Z", "datePublished": "2026-10-06T08:45:55.723Z", "dateUpdated": "2026-10-30T12:38:01.528Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-30T12:38:01.528Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_core: Fix queuing tx_work after workqueue is drained\n\nhci_send_acl(), hci_send_sco() and hci_send_iso() queue hdev->tx_work\nunconditionally. They can run from the L2CAP/SCO/ISO socket send path\nwhile hci_dev_close_sync() is draining hdev->workqueue (HCIDEVDOWN\nracing with a socket write). Since that queue_work() is not chained\nwork from the tx_work worker itself, __queue_work() sees the queue\nmarked __WQ_DRAINING, warns \"cannot queue %ps on wq %s\", and drops\nthe work:\n\n WARNING: CPU: 1 PID: 5985 at kernel/workqueue.c:2352 __queue_work\n Call Trace:\n queue_work_on\n l2cap_chan_send\n l2cap_sock_sendmsg\n ...\n\nhci_dev_close_sync() already sets HCI_CMD_DRAIN_WORKQUEUE before\ndraining, but only hci_cmd_work() and handle_cmd_cnt_and_timer()\ncheck it before queuing. Route the tx_work producers through the\nsame guard via a shared hci_sched_tx() helper."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/bluetooth/hci_core.c"], "versions": [{"version": "ccf07dfb9d7d1e2c7a1eeb782f90d9b614ebba9c", "lessThan": "9943b4c70ad972f368705da8605054f865b08dad", "status": "affected", "versionType": "git"}, {"version": "7b81c1378b79c3143ca3fdb3d18ac0f01cbabb21", "lessThan": "8010212197d4a3ee714f78ed77048d0b712ff925", "status": "affected", "versionType": "git"}, {"version": "9cebe4680bb9a72f80c6541eb24af06db7a1fbc9", "lessThan": "ab0678a0701ac4de499428dc1b321659bb74d272", "status": "affected", "versionType": "git"}, {"version": "47330cc875b36a1cf7b3543cb2cf90a7c603ce0e", "lessThan": "e220c1242a643d97102a79f09b7ef3aa31276961", "status": "affected", "versionType": "git"}, {"version": "525daaea459fc215f432de1b8debbd9144bf97b0", "lessThan": "cbb325bc150e8c0dbce004ac0e5516bcffc0de31", "status": "affected", "versionType": "git"}, {"version": "525daaea459fc215f432de1b8debbd9144bf97b0", "lessThan": "6610c6fe4b8936c232048e6049bf77c70a6f759c", "status": "affected", "versionType": "git"}, {"version": "60bceb9a4c693e68cc90ba4b2dfb9e000e8638ff", "status": "affected", "versionType": "git"}, {"version": "6.12.93", "lessThan": "6.12.112", "status": "affected", "versionType": "semver"}, {"version": "6.18.35", "lessThan": "6.18.54", "status": "affected", "versionType": "semver"}, {"version": "7.0.12", "lessThan": "7.1", "status": "affected", "versionType": "semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/bluetooth/hci_core.c"], "versions": [{"version": "7.1", "status": "affected"}, {"version": "0", "lessThan": "7.1", "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": "6.12.93", "versionEndExcluding": "6.12.112"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.18.35", "versionEndExcluding": "6.18.54"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "7.1", "versionEndExcluding": "7.2.8"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "7.1", "versionEndExcluding": "7.3"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "7.0.12"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/9943b4c70ad972f368705da8605054f865b08dad"}, {"url": "https://git.kernel.org/stable/c/8010212197d4a3ee714f78ed77048d0b712ff925"}, {"url": "https://git.kernel.org/stable/c/ab0678a0701ac4de499428dc1b321659bb74d272"}, {"url": "https://git.kernel.org/stable/c/e220c1242a643d97102a79f09b7ef3aa31276961"}, {"url": "https://git.kernel.org/stable/c/cbb325bc150e8c0dbce004ac0e5516bcffc0de31"}, {"url": "https://git.kernel.org/stable/c/6610c6fe4b8936c232048e6049bf77c70a6f759c"}], "title": "Bluetooth: hci_core: Fix queuing tx_work after workqueue is drained", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["net/bluetooth/hci_core.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "9943b4c70ad972f368705da8605054f865b08dad", "status": "affected", "version": "ccf07dfb9d7d1e2c7a1eeb782f90d9b614ebba9c", "versionType": "git"}, {"lessThan": "8010212197d4a3ee714f78ed77048d0b712ff925", "status": "affected", "version": "7b81c1378b79c3143ca3fdb3d18ac0f01cbabb21", "versionType": "git"}, {"lessThan": "ab0678a0701ac4de499428dc1b321659bb74d272", "status": "affected", "version": "9cebe4680bb9a72f80c6541eb24af06db7a1fbc9", "versionType": "git"}, {"lessThan": "e220c1242a643d97102a79f09b7ef3aa31276961", "status": "affected", "version": "47330cc875b36a1cf7b3543cb2cf90a7c603ce0e", "versionType": "git"}, {"lessThan": "cbb325bc150e8c0dbce004ac0e5516bcffc0de31", "status": "affected", "version": "525daaea459fc215f432de1b8debbd9144bf97b0", "versionType": "git"}, {"lessThan": "6610c6fe4b8936c232048e6049bf77c70a6f759c", "status": "affected", "version": "525daaea459fc215f432de1b8debbd9144bf97b0", "versionType": "git"}, {"status": "affected", "version": "60bceb9a4c693e68cc90ba4b2dfb9e000e8638ff", "versionType": "git"}, {"lessThan": "6.12.112", "status": "affected", "version": "6.12.93", "versionType": "semver"}, {"lessThan": "6.18.54", "status": "affected", "version": "6.18.35", "versionType": "semver"}, {"lessThan": "7.1", "status": "affected", "version": "7.0.12", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["net/bluetooth/hci_core.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "7.1"}, {"lessThan": "7.1", "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: hci_core: Fix queuing tx_work after workqueue is drained\n\nhci_send_acl(), hci_send_sco() and hci_send_iso() queue hdev->tx_work\nunconditionally. They can run from the L2CAP/SCO/ISO socket send path\nwhile hci_dev_close_sync() is draining hdev->workqueue (HCIDEVDOWN\nracing with a socket write). Since that queue_work() is not chained\nwork from the tx_work worker itself, __queue_work() sees the queue\nmarked __WQ_DRAINING, warns \"cannot queue %ps on wq %s\", and drops\nthe work:\n\n WARNING: CPU: 1 PID: 5985 at kernel/workqueue.c:2352 __queue_work\n Call Trace:\n queue_work_on\n l2cap_chan_send\n l2cap_sock_sendmsg\n ...\n\nhci_dev_close_sync() already sets HCI_CMD_DRAIN_WORKQUEUE before\ndraining, but only hci_cmd_work() and handle_cmd_cnt_and_timer()\ncheck it before queuing. Route the tx_work producers through the\nsame guard via a shared hci_sched_tx() helper."}], "id": "CVE-2026-98297", "lastModified": "2026-10-30T13:21:12.877", "metrics": {}, "published": "2026-10-06T09:18:20.400", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6610c6fe4b8936c232048e6049bf77c70a6f759c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8010212197d4a3ee714f78ed77048d0b712ff925"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9943b4c70ad972f368705da8605054f865b08dad"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ab0678a0701ac4de499428dc1b321659bb74d272"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/cbb325bc150e8c0dbce004ac0e5516bcffc0de31"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e220c1242a643d97102a79f09b7ef3aa31276961"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: Bluetooth: hci_core: Fix queuing tx_work after workqueue is drained", "id": "2546449", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2546449"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-366", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nBluetooth: hci_core: Fix queuing tx_work after workqueue is drained\nhci_send_acl(), hci_send_sco() and hci_send_iso() queue hdev->tx_work\nunconditionally. They can run from the L2CAP/SCO/ISO socket send path\nwhile hci_dev_close_sync() is draining hdev->workqueue (HCIDEVDOWN\nracing with a socket write). Since that queue_work() is not chained\nwork from the tx_work worker itself, __queue_work() sees the queue\nmarked __WQ_DRAINING, warns \"cannot queue %ps on wq %s\", and drops\nthe work:\nWARNING: CPU: 1 PID: 5985 at kernel/workqueue.c:2352 __queue_work\nCall Trace:\nqueue_work_on\nl2cap_chan_send\nl2cap_sock_sendmsg\n...\nhci_dev_close_sync() already sets HCI_CMD_DRAIN_WORKQUEUE before\ndraining, but only hci_cmd_work() and handle_cmd_cnt_and_timer()\ncheck it before queuing. Route the tx_work producers through the\nsame guard via a shared hci_sched_tx() helper.", "A flaw was found in the Linux kernel's Bluetooth subsystem. A race condition occurs when network transmission requests are queued while the Bluetooth device is being shut down and its background workqueue is draining. A local attacker could exploit this vulnerability by sending data through Bluetooth sockets during device closure, leading to kernel warnings, dropped operations, and a potential Denial of Service (DoS)."], "name": "CVE-2026-98297", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "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": "Fix deferred", "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": "Not 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-2026-98297\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-98297\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98297.mbox"], "threat_severity": "Low"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9cebe4680bb9a72f80c6541eb24af06db7a1fbc9,ab0678a0701ac4de499428dc1b321659bb74d272)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[47330cc875b36a1cf7b3543cb2cf90a7c603ce0e,e220c1242a643d97102a79f09b7ef3aa31276961)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[525daaea459fc215f432de1b8debbd9144bf97b0,cbb325bc150e8c0dbce004ac0e5516bcffc0de31)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[525daaea459fc215f432de1b8debbd9144bf97b0,6610c6fe4b8936c232048e6049bf77c70a6f759c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "60bceb9a4c693e68cc90ba4b2dfb9e000e8638ff"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.12.93,6.12.112)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.18.35,6.18.54)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[7.0.12,7.1)"}}], "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": "generic", "value": "7.1"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,7.1)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.12.112,6.12.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.18.54,6.18.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2.8,7.2.*]"}}, {"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": "2026-10-06T13:15:16.591372+00:00", "updated": "2026-10-11T16:15:17.292603+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-362", "CWE-366"]}