PT-2025-23152 · Linux+4 · Linux Kernel+4
Published
2025-05-06
·
Updated
2026-02-03
·
CVE-2025-37993
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions prior to 6.15.0-rc3
Description
A vulnerability in the Linux kernel has been resolved, related to the initialization of a spin lock in the
m can classdev struct. The issue occurs when trying to send CAN frames, resulting in a "spinlock bad magic" complaint from the kernel. This problem is solved by initializing the spin lock in m can class allocate dev.Recommendations
For Linux kernel versions prior to 6.15.0-rc3, initialize the spin lock
tx handling spinlock in m can class allocate dev to resolve the issue. As a temporary workaround, consider disabling the m can start xmit function until a patch is available. Restrict access to the m can classdev struct to minimize the risk of exploitation. Avoid using the cansend utility from can-utils until the issue is resolved.Exploit
Fix
Improper Initialization
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Weakness Enumeration
Related Identifiers
Affected Products
Astra Linux
Linuxmint
Linux Kernel
Red Os
Ubuntu