PT-2026-2529 · Linux+2 · Linux Kernel+2
Published
2025-11-28
·
Updated
2026-05-11
·
CVE-2025-68797
CVSS v2.0
4.6
Medium
| Vector | AV:L/AC:L/Au:S/C:N/I:N/A:C |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
A flaw exists in the
ac ioctl function within the Linux kernel. Specifically, validation of the IndexCard and a check for a valid RamIO pointer are bypassed when the command (cmd) is 6. This can lead to a NULL pointer dereference when the function attempts to read from memory at apbs[IndexCard].RamIO + VERS if RamIO is NULL. The issue occurs because the read operation is unconditionally executed even when cmd is 6, which is a global information query and does not require a specific board context.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
NULL Pointer Dereference
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Weakness Enumeration
Related Identifiers
Affected Products
Linuxmint
Linux Kernel
Ubuntu