CVE-2025-38003
Published: June 10, 2025Last modified: June 10, 2025
Description
In the Linux kernel, the following vulnerability has been resolved: can: bcm: add missing rcu read protection for procfs content When the procfs content is generated for a bcm_op which is in the process to be removed the procfs output might show unreliable data (UAF). As the removal of bcm_op's is already implemented with rcu handling this patch adds the missing rcu_read_lock() and makes sure the list entries are properly removed under rcu protection.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.5 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Fixed (6.1.141-r0) |
| 25 LTS | linux-lts | Fixed (6.12.41-r0) | |
| Stream | linux-lts | Fixed (6.12.41-r0) |
References
- https://git.kernel.org/stable/c/0622846db728a5332b917c797c733e202c4620ae
- https://git.kernel.org/stable/c/19f553a1ddf260da6570ed8f8d91a8c87f49b63a
- https://git.kernel.org/stable/c/1f912f8484e9c4396378c39460bbea0af681f319
- https://git.kernel.org/stable/c/63567ecd99a24495208dc860d50fb17440043006
- https://git.kernel.org/stable/c/659701c0b954ccdb4a916a4ad59bbc16e726d42c
- https://git.kernel.org/stable/c/6d7d458c41b98a5c1670cbd36f2923c37de51cf5
- https://git.kernel.org/stable/c/7c9db92d5f0eadca30884af75c53d601edc512ee
- https://git.kernel.org/stable/c/dac5e6249159ac255dad9781793dbe5908ac9ddb
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html