PT-2025-36279 · Linux+5 · Linux Kernel+5
Syzbot
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Published
2025-01-01
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Updated
2026-04-20
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CVE-2025-39684
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 (affected versions not specified)
Description
The Linux kernel contains a kernel-infoleak issue in the
do insn ioctl() and do insnlist ioctl() functions. A kernel buffer allocated to hold insn->n samples may not be fully initialized before data is copied to user space, leading to an information leak. This occurs when instruction handlers do not fill the entire insn->n samples, leaving uninitialized kernel data to be read by user space. Specific culprits include insn rw emulate bits() and vm80xx ai insn read().Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Use of Uninitialized Resource
Improper Initialization
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Related Identifiers
Affected Products
Debian
Linuxmint
Linux Kernel
Red Os
Suse
Ubuntu