{"api_version":"1","generated_at":"2026-10-14T18:45:16+00:00","cve":"CVE-2026-98297","urls":{"html":"https://cve.report/CVE-2026-98297","api":"https://cve.report/api/cve/CVE-2026-98297.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-98297","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-98297"},"summary":{"title":"Bluetooth: hci_core: Fix queuing tx_work after workqueue is drained","description":"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.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-10-06 09:18:20","updated_at":"2026-10-06 09:18:20"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/ab0678a0701ac4de499428dc1b321659bb74d272","name":"https://git.kernel.org/stable/c/ab0678a0701ac4de499428dc1b321659bb74d272","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/cbb325bc150e8c0dbce004ac0e5516bcffc0de31","name":"https://git.kernel.org/stable/c/cbb325bc150e8c0dbce004ac0e5516bcffc0de31","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/e220c1242a643d97102a79f09b7ef3aa31276961","name":"https://git.kernel.org/stable/c/e220c1242a643d97102a79f09b7ef3aa31276961","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/6610c6fe4b8936c232048e6049bf77c70a6f759c","name":"https://git.kernel.org/stable/c/6610c6fe4b8936c232048e6049bf77c70a6f759c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-98297","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98297","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 9cebe4680bb9a72f80c6541eb24af06db7a1fbc9 ab0678a0701ac4de499428dc1b321659bb74d272 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 47330cc875b36a1cf7b3543cb2cf90a7c603ce0e e220c1242a643d97102a79f09b7ef3aa31276961 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 525daaea459fc215f432de1b8debbd9144bf97b0 cbb325bc150e8c0dbce004ac0e5516bcffc0de31 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 525daaea459fc215f432de1b8debbd9144bf97b0 6610c6fe4b8936c232048e6049bf77c70a6f759c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 60bceb9a4c693e68cc90ba4b2dfb9e000e8638ff git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.12.93 6.12.112 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.18.35 6.18.54 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 7.0.12 7.1 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 7.1","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.112 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.54 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.8 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3-rc4 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"98297","cve":"CVE-2026-98297","epss":"0.001750000","percentile":"0.063810000","score_date":"2026-10-06","updated_at":"2026-10-07 00:14:55"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"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":"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-rc4","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.112","versionStartIncluding":"6.12.93","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.54","versionStartIncluding":"6.18.35","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.8","versionStartIncluding":"7.1","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3-rc4","versionStartIncluding":"7.1","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"7.0.12","vulnerable":true}],"negate":false,"operator":"OR"}]}],"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."}],"providerMetadata":{"dateUpdated":"2026-10-06T08:45:55.723Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"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"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-98297","datePublished":"2026-10-06T08:45:55.723Z","dateReserved":"2026-09-25T10:25:14.337Z","dateUpdated":"2026-10-06T08:45:55.723Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-06 09:18:20","lastModifiedDate":"2026-10-06 09:18:20","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"98297","Ordinal":"1","Title":"Bluetooth: hci_core: Fix queuing tx_work after workqueue is drai","CVE":"CVE-2026-98297","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"98297","Ordinal":"1","NoteData":"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.","Type":"Description","Title":"Bluetooth: hci_core: Fix queuing tx_work after workqueue is drai"}]}}}