CVE-2025-71182
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2025
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
can: j1939: make j1939_session_activate() fail if device is no longer registered
In the Linux kernel, the following vulnerability has been resolved: can: j1939: make j1939_session_activate() fail if device is no longer registered syzbot is still reporting unregister_netdevice: waiting for vcan0 to become free. Usage count = 2 even after commit 93a27b5891b8 ("can: j1939: add missing calls in NETDEV_UNREGISTER notification handler") was added. A debug printk() patch found that j1939_session_activate() can succeed even after j1939_cancel_active_session() from j1939_netdev_notify(NETDEV_UNREGISTER) has completed. Since j1939_cancel_active_session() is processed with the session list lock held, checking ndev->reg_state in j1939_session_activate() with the session list lock held can reliably close the race window.
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) |
|---|---|---|---|---|---|
| 9d71dd0c70099914fcd063135da3c580865e924c | affected | git | ebb0dfd718dd31c8d3600612ca4b7207ec3d923a | Unavailable | None listed |
| 9d71dd0c70099914fcd063135da3c580865e924c | affected | git | c3a4316e3c746af415c0fd6c6d489ad13f53714d | Unavailable | None listed |
| 9d71dd0c70099914fcd063135da3c580865e924c | affected | git | 46ca9dc978923c5e1247a9e9519240ba7ace413c | Unavailable | None listed |
| 9d71dd0c70099914fcd063135da3c580865e924c | affected | git | 78d87b72cebe2a993fd5b017e9f14fb6278f2eae | Unavailable | None listed |
| 9d71dd0c70099914fcd063135da3c580865e924c | affected | git | ba6f0d1832eeb5eb3a6dc5cb30e0f720b3cb3536 | Unavailable | None listed |
| 9d71dd0c70099914fcd063135da3c580865e924c | affected | git | 79dd3f1d9dd310c2af89b09c71f34d93973b200f | Unavailable | None listed |
| 9d71dd0c70099914fcd063135da3c580865e924c | affected | git | 5d5602236f5db19e8b337a2cd87a90ace5ea776d | 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) |
|---|---|---|---|---|---|
| 5.4 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.4 | Unavailable | None listed |
| 5.10.248 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.198 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.161 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.121 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.66 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.6 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 6.19 | unaffected | original_commit_for_fix | Unavailable | * | None listed |