CVE-2022-49531

MEDIUM

Linux Kernel < 5.18.3 - Use-After-Free in Loop Device

Title source: llm

Description

In the Linux kernel, the following vulnerability has been resolved: loop: implement ->free_disk Ensure that the lo_device which is stored in the gendisk private data is valid until the gendisk is freed. Currently the loop driver uses a lot of effort to make sure a device is not freed when it is still in use, but to to fix a potential deadlock this will be relaxed a bit soon.

References (2)

Core 2

Core References

Patch

https://git.kernel.org/stable/c/aadd1443aae7fe8956e3b11157827067f034406a

Patch

https://git.kernel.org/stable/c/d2c7f56f8b5256d57f9e3fc7794c31361d43bdd9

Scores

CVSS v3 5.5

EPSS 0.0016

EPSS Percentile 5.1%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-667

Status published

Products (8)

linux/Kernel 2.6.22 - 5.18.3linux

Linux/Linux < 2.6.22

Linux/Linux 2.6.22

Linux/Linux 5.18.3 - 5.18.*

Linux/Linux 5.19

Linux/Linux 73285082745045bcd64333c1fbaa88f8490f2626 - aadd1443aae7fe8956e3b11157827067f034406a

Linux/Linux 73285082745045bcd64333c1fbaa88f8490f2626 - d2c7f56f8b5256d57f9e3fc7794c31361d43bdd9

linux/linux_kernel < 5.18.3

Published Feb 26, 2025

Tracked Since Feb 18, 2026