CVE-2026-97977
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: btusb: Fix UAF of btusb_data by rx_work
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btusb: Fix UAF of btusb_data by rx_work btusb_close() and btusb_flush() cancel data->rx_work with the asynchronous cancel_delayed_work(), so if btusb_rx_work() is already running on another CPU it keeps running after the cancel returns. btusb_disconnect() calls hci_unregister_dev(), which invokes btusb_close(), and then frees the btusb_data. A still running btusb_rx_work() then dereferences the freed data: while ((skb = skb_dequeue(&data->acl_q))) data->recv_acl(data->hdev, skb); Use cancel_delayed_work_sync() instead. In btusb_close() the cancel also has to happen after btusb_stop_traffic(), otherwise an URB completion racing with the cancel can requeue the work right after it has been waited for.
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) |
|---|---|---|---|---|---|
| 800fe5ec302e1ebbf5e3f891f886deecd49c7132 | affected | git | fc654a72a8d979db15e2773a481e931abaf5a9e8 | Unavailable | None listed |
| 800fe5ec302e1ebbf5e3f891f886deecd49c7132 | affected | git | 5242050195a711e9cd6a9935f689ab6656b94a91 | Unavailable | None listed |
| 800fe5ec302e1ebbf5e3f891f886deecd49c7132 | affected | git | 472d005622525b7be155cac99dde2252b0163bd1 | Unavailable | None listed |
| 800fe5ec302e1ebbf5e3f891f886deecd49c7132 | affected | git | 93b59937bda3fffc6386c79f5544a39bc680c8e8 | Unavailable | None listed |
| 800fe5ec302e1ebbf5e3f891f886deecd49c7132 | affected | git | fa391adb9c755515a89993634745e9079e5ef37c | Unavailable | None listed |
| 800fe5ec302e1ebbf5e3f891f886deecd49c7132 | affected | git | 1c12c3117639e78940959d956519c758c57d0849 | 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) |
|---|---|---|---|---|---|
| 5.17 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.17 | Unavailable | None listed |
| 6.1.189 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.158 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.111 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.53 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.2.7 | unaffected | semver | Unavailable | 7.2.* | None listed |
| 7.3 | unaffected | original_commit_for_fix | Unavailable | * | None listed |