CVE-2026-23395
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: Fix accepting multiple L2CAP_ECRED_CONN_REQ
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix accepting multiple L2CAP_ECRED_CONN_REQ Currently the code attempts to accept requests regardless of the command identifier which may cause multiple requests to be marked as pending (FLAG_DEFER_SETUP) which can cause more than L2CAP_ECRED_MAX_CID(5) to be allocated in l2cap_ecred_rsp_defer causing an overflow. The spec is quite clear that the same identifier shall not be used on subsequent requests: 'Within each signaling channel a different Identifier shall be used for each successive request or indication.' https://www.bluetooth.com/wp-content/uploads/Files/Specification/HTML/Core-62/out/en/host/logical-link-control-and-adaptation-protocol-specification.html#UUID-32a25a06-4aa4-c6c7-77c5-dcfe3682355d So this attempts to check if there are any channels pending with the same identifier and rejects if any are found.
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) |
|---|---|---|---|---|---|
| 15f02b91056253e8cdc592888f431da0731337b8 | affected | git | 10a7a702542240d5edb2b39450ac951c59ccd009 | Unavailable | None listed |
| 15f02b91056253e8cdc592888f431da0731337b8 | affected | git | 46e5b71666fb7652082e4e214a3365f4b14f1dc3 | Unavailable | None listed |
| 15f02b91056253e8cdc592888f431da0731337b8 | affected | git | fb4a3a26483f3ea2cd21c7a2f7c45d5670600465 | Unavailable | None listed |
| 15f02b91056253e8cdc592888f431da0731337b8 | affected | git | 2124d82fd25e1671bb3ceb37998af5aae5903e06 | Unavailable | None listed |
| 15f02b91056253e8cdc592888f431da0731337b8 | affected | git | 6b949a6b33cbdf621d9fc6f0c48ac00915dbf514 | Unavailable | None listed |
| 15f02b91056253e8cdc592888f431da0731337b8 | affected | git | 8d0d94f8ba5b3a0beec3b0da558b9bea48018117 | Unavailable | None listed |
| 15f02b91056253e8cdc592888f431da0731337b8 | affected | git | e72ee455297b794b852e5cea8d2d7bb17312172a | Unavailable | None listed |
| 15f02b91056253e8cdc592888f431da0731337b8 | affected | git | 5b3e2052334f2ff6d5200e952f4aa66994d09899 | 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) |
|---|---|---|---|---|---|
| 5.7 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.7 | Unavailable | None listed |
| 5.10.253 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.203 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.167 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.130 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.78 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.20 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 6.19.10 | unaffected | semver | Unavailable | 6.19.* | None listed |
| 7.0 | unaffected | original_commit_for_fix | Unavailable | * | None listed |