PT-2024-3424 · Linux+10 · Linux Kernel+10
Guanghui Feng
·
Published
2024-01-04
·
Updated
2025-09-29
·
CVE-2023-52439
CVSS v3.1
7.8
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions:
Linux kernel (affected versions not specified)
Description:
The issue is related to a use-after-free vulnerability in the
uio open function of the Linux kernel. This vulnerability occurs due to a race condition between two cores, core-1 and core-2, where core-1 frees the idev memory after unregistering the device, but before core-2 can access it, resulting in a use-after-free condition. Additionally, when core-2 releases the device and puts it, the idev will be double-freed. The vulnerability can be addressed by getting the idev atomic and incrementing its reference with minor lock.Recommendations:
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Use After Free
Race Condition
Double Free
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Related Identifiers
Affected Products
Alt Linux
Almalinux
Astra Linux
Centos
Linuxmint
Linux Kernel
Red Hat
Red Os
Rocky Linux
Suse
Ubuntu