CVE-2026-90256
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: L2CAP: use proto_lock for l2cap_data to fix l2cap_disconn_ind
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: use proto_lock for l2cap_data to fix l2cap_disconn_ind hci_conn::l2cap_data is accessed without locks in l2cap_disconn_ind via hci_conn_timeout (disc_work) -> hci_proto_disconn_ind -> l2cap_disconn_ind. This is UAF if the l2cap_conn is deleted concurrently. disc_work is disabled sync in hci_conn_del(), so we cannot take hci_dev_lock in disc_work. Fix by using proto_lock to guard l2cap_data, in addition to hdev->lock which is held in other access paths.
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) |
|---|---|---|---|---|---|
| efc30877bd4bc85fefe98d80af60fafc86e5775e | affected | git | 0fa448369c87e20b2aeaeaca0187d698dd61f791 | Unavailable | None listed |
| f87271d21dd4ee83857ca11b94e7b4952749bbae | affected | git | 7c032b6d48a46634cbd58aaebad2638c00ad3b51 | Unavailable | None listed |
| ab4eedb790cae44313759b50fe47da285e2519d5 | affected | git | b495a3a9b33bc4e4613e685bf5c96c136caa22d8 | Unavailable | None listed |
| ab4eedb790cae44313759b50fe47da285e2519d5 | affected | git | 2b66c83ff1751d6bd3201b3017206262ab46dc05 | Unavailable | None listed |
| 18ab6b6078fa8191ca30a3065d57bf35d5635761 | affected | git | Unavailable | Unavailable | None listed |
| 6.6.84 | affected | semver | 6.6.160 | Unavailable | None listed |
| 6.12.20 | affected | semver | 6.12.114 | Unavailable | None listed |
| 6.13.8 | affected | semver | 6.14 | 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) |
|---|---|---|---|---|---|
| 6.14 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 6.14 | Unavailable | None listed |
| 6.6.160 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.114 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 7.2.6 | unaffected | semver | Unavailable | 7.2.* | None listed |
| 7.3 | unaffected | original_commit_for_fix | Unavailable | * | None listed |