CVE-2026-98297
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
Bluetooth: hci_core: Fix queuing tx_work after workqueue is drained
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_core: Fix queuing tx_work after workqueue is drained hci_send_acl(), hci_send_sco() and hci_send_iso() queue hdev->tx_work unconditionally. They can run from the L2CAP/SCO/ISO socket send path while hci_dev_close_sync() is draining hdev->workqueue (HCIDEVDOWN racing with a socket write). Since that queue_work() is not chained work from the tx_work worker itself, __queue_work() sees the queue marked __WQ_DRAINING, warns "cannot queue %ps on wq %s", and drops the work: WARNING: CPU: 1 PID: 5985 at kernel/workqueue.c:2352 __queue_work Call Trace: queue_work_on l2cap_chan_send l2cap_sock_sendmsg ... hci_dev_close_sync() already sets HCI_CMD_DRAIN_WORKQUEUE before draining, but only hci_cmd_work() and handle_cmd_cnt_and_timer() check it before queuing. Route the tx_work producers through the same guard via a shared hci_sched_tx() helper.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 7b81c1378b79c3143ca3fdb3d18ac0f01cbabb21 | affected | git | 8010212197d4a3ee714f78ed77048d0b712ff925 | Unavailable | None listed |
| 9cebe4680bb9a72f80c6541eb24af06db7a1fbc9 | affected | git | ab0678a0701ac4de499428dc1b321659bb74d272 | Unavailable | None listed |
| 47330cc875b36a1cf7b3543cb2cf90a7c603ce0e | affected | git | e220c1242a643d97102a79f09b7ef3aa31276961 | Unavailable | None listed |
| 525daaea459fc215f432de1b8debbd9144bf97b0 | affected | git | cbb325bc150e8c0dbce004ac0e5516bcffc0de31 | Unavailable | None listed |
| 525daaea459fc215f432de1b8debbd9144bf97b0 | affected | git | 6610c6fe4b8936c232048e6049bf77c70a6f759c | Unavailable | None listed |
| 60bceb9a4c693e68cc90ba4b2dfb9e000e8638ff | affected | git | Unavailable | Unavailable | None listed |
| 6.12.93 | affected | semver | 6.12.112 | Unavailable | None listed |
| 6.18.35 | affected | semver | 6.18.54 | Unavailable | None listed |
| 7.0.12 | affected | semver | 7.1 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 7.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 7.1 | Unavailable | None listed |
| 6.12.112 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.54 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.2.8 | unaffected | semver | Unavailable | 7.2.* | None listed |
| 7.3 | unaffected | original_commit_for_fix | Unavailable | * | None listed |