CVE-2026-74535
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: ISO: avoid deadlocks in iso_sock_timeout
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: avoid deadlocks in iso_sock_timeout iso_sock_timeout() takes lock_sock, so sync disabling the timer while holding that lock may deadlock. iso_sock_timeout() may also run concurrently with iso_conn_del(), which leads to UAF [Task 1] [Task hdev->workqueue] iso_sock_timeout iso_conn_del iso_conn_hold_unless_zero iso_chan_del `------------> iso_conn_put caller frees hcon iso_conn_put iso_conn_free conn->hcon->iso_data = NULL; /* UAF */ Fix the deadlock by removing the disable from the lock_sock sections. Move the timer from iso_conn to iso_pinfo to decouple it from iso_conn which may need to be freed in lock_sock section. Convert some of the clear_timer to disable_timer.
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) |
|---|---|---|---|---|---|
| a58d0f5dac322e16cc75334d000666512341bde5 | affected | git | 16d89a63e08280abeef7218970a3bbd7ca62b021 | Unavailable | None listed |
| dc26097bdb864a0d5955b9a25e43376ffc1af99b | affected | git | 82e982f54f962f72646868ddbb2c3bd9ea178568 | Unavailable | None listed |
| dc26097bdb864a0d5955b9a25e43376ffc1af99b | affected | git | 3c3d5f85db80145636bb991a6005e2760012b985 | Unavailable | None listed |
| dc26097bdb864a0d5955b9a25e43376ffc1af99b | affected | git | 200fa1629c57a3ca2b03d3ca63fd3a9bfd910c43 | Unavailable | None listed |
| f53e7489273dc2bb307bf50f319b3762d45534f0 | affected | git | Unavailable | Unavailable | None listed |
| 6.12.2 | affected | semver | 6.12.103 | Unavailable | None listed |
| 6.11.11 | affected | semver | 6.12 | 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) |
|---|---|---|---|---|---|
| 6.13 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 6.13 | Unavailable | None listed |
| 6.12.103 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.44 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.1.8 | unaffected | semver | Unavailable | 7.1.* | None listed |
| 7.2 | unaffected | original_commit_for_fix | Unavailable | * | None listed |