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.
Affected products
linux: linux kernel; debian: debian linux
References10
- git.kernel.org/stable/c/0622846db728a5332b917c797c733e202c4620ae Patch
- git.kernel.org/stable/c/19f553a1ddf260da6570ed8f8d91a8c87f49b63a Patch
- git.kernel.org/stable/c/1f912f8484e9c4396378c39460bbea0af681f319 Patch
- git.kernel.org/stable/c/63567ecd99a24495208dc860d50fb17440043006 Patch
- git.kernel.org/stable/c/659701c0b954ccdb4a916a4ad59bbc16e726d42c Patch
- git.kernel.org/stable/c/6d7d458c41b98a5c1670cbd36f2923c37de51cf5 Patch
- git.kernel.org/stable/c/7c9db92d5f0eadca30884af75c53d601edc512ee Patch
- git.kernel.org/stable/c/dac5e6249159ac255dad9781793dbe5908ac9ddb Patch
- lists.debian.org/debian-lts-announce/2025/10/msg00007.html Third Party Advisory
- lists.debian.org/debian-lts-announce/2025/10/msg00008.html Third Party Advisory
Metrics
- CVSS 3.1
-
5.5
MEDIUM
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 0% percentile: 23 · as of 7 November 2026
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