PT-2025-24354 · Linux+6 · Linux Kernel+6
Published
2025-05-19
·
Updated
2026-04-20
·
CVE-2025-38004
CVSS v3.1
7.1
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
A vulnerability in the Linux kernel has been resolved, related to the CAN broadcast manager (CAN BCM). The CAN BCM can send a sequence of CAN frames via hrtimer, and the content and length of the sequence can be changed at runtime. However, updates to the 'currframe' counter can be triggered from user space and hrtimer context, potentially leading to a slab-out-of-bounds read access. A proof of concept was created, demonstrating the vulnerability, which can be prevented with a spin lock bh. The 'count' variable has been moved into a protected section to prevent modification from both contexts.
Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Out of bounds Read
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Weakness Enumeration
Related Identifiers
Affected Products
Astra Linux
Debian
Linuxmint
Linux Kernel
Red Os
Suse
Ubuntu