CVE-2025-38665
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: netlink: can_changelink(): fix NULL pointer deref of struct can_priv::do_set_mode
In the Linux kernel, the following vulnerability has been resolved: can: netlink: can_changelink(): fix NULL pointer deref of struct can_priv::do_set_mode Andrei Lalaev reported a NULL pointer deref when a CAN device is restarted from Bus Off and the driver does not implement the struct can_priv::do_set_mode callback. There are 2 code path that call struct can_priv::do_set_mode: - directly by a manual restart from the user space, via can_changelink() - delayed automatic restart after bus off (deactivated by default) To prevent the NULL pointer deference, refuse a manual restart or configure the automatic restart delay in can_changelink() and report the error via extack to user space. As an additional safety measure let can_restart() return an error if can_priv::do_set_mode is not set instead of dereferencing it unchecked.
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) |
|---|---|---|---|---|---|
| 39549eef3587f1c1e8c65c88a2400d10fd30ea17 | affected | git | 6bbcf37c5114926c99a1d1e6993a5b35689d2599 | Unavailable | None listed |
| 39549eef3587f1c1e8c65c88a2400d10fd30ea17 | affected | git | cf81a60a973358dea163f6b14062f17831ceb894 | Unavailable | None listed |
| 39549eef3587f1c1e8c65c88a2400d10fd30ea17 | affected | git | 0ca816a96fdcf32644c80cbe7a82c7b6ce6ddda5 | Unavailable | None listed |
| 39549eef3587f1c1e8c65c88a2400d10fd30ea17 | affected | git | 6acceb46180f9e160d4f0c56fcaf39ba562822ae | Unavailable | None listed |
| 39549eef3587f1c1e8c65c88a2400d10fd30ea17 | affected | git | c1f3f9797c1f44a762e6f5f72520b2e520537b52 | 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) |
|---|---|---|---|---|---|
| 2.6.31 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 2.6.31 | Unavailable | None listed |
| 6.1.148 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.101 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.41 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.15.9 | unaffected | semver | Unavailable | 6.15.* | None listed |
| 6.16 | unaffected | original_commit_for_fix | Unavailable | * | None listed |