CVE-2026-89774
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: SCO: hold sk properly in sco_conn_ready
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: SCO: hold sk properly in sco_conn_ready sk deref in sco_conn_ready must be done either under conn->lock, or holding a refcount, to avoid concurrent close. conn->sk and parent sk is currently accessed without either, and without checking parent->sk_state: [Task 1] [Task 2] sco_sock_release sco_conn_ready sk = conn->sk lock_sock(sk) conn->sk = NULL lock_sock(sk) release_sock(sk) sco_sock_kill(sk) UAF on sk deref and similarly for access to sco_get_sock_listen() return value. Fix possible UAF by holding sk refcount in sco_conn_ready() and making sco_get_sock_listen() increase refcount. Also recheck after lock_sock that the socket is still valid. Adjust conn->sk locking so it's protected also by lock_sock() of the associated socket if any.
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) |
|---|---|---|---|---|---|
| 27c24fda62b601d6f9ca5e992502578c4310876f | affected | git | 50aae396dc30377bec8e3b181b8346f8fd38f7d8 | Unavailable | None listed |
| 27c24fda62b601d6f9ca5e992502578c4310876f | affected | git | 6e3840578aaad1a296aab1eaaa89ea3b7d5cbae1 | Unavailable | None listed |
| 27c24fda62b601d6f9ca5e992502578c4310876f | affected | git | d141d9b769bcd1b747898528c5023270cda040f2 | Unavailable | None listed |
| 27c24fda62b601d6f9ca5e992502578c4310876f | affected | git | 73cb063f5ec6ca51eb1e246c6d332563002ac277 | Unavailable | None listed |
| 27c24fda62b601d6f9ca5e992502578c4310876f | affected | git | 7199c78c3a3e399a4dc439d845826793880ccedc | Unavailable | None listed |
| 27c24fda62b601d6f9ca5e992502578c4310876f | affected | git | 4e37f6452d586b95c346a9abdd2fb80b67794f39 | 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) |
|---|---|---|---|---|---|
| 5.15 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.15 | Unavailable | None listed |
| 5.15.212 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.178 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.145 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.97 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.40 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.1 | unaffected | original_commit_for_fix | Unavailable | * | None listed |