PT-2024-8531 · Linux+4 · Linux Kernel+4
Zhihao Cheng
·
Published
2024-10-29
·
Updated
2026-05-26
·
CVE-2024-50217
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 btrfs file system. It can be triggered when mounting btrfs from two images with the same fsid and different dev uuids in a specific order. The vulnerability affects the
device->bdev file variable in the btrfs free extra devids() function. This can lead to unauthorized access and modification of sensitive information.The exploitation of this vulnerability may allow an attacker to impact the confidentiality, integrity, and availability of protected information.
Recommendations
To resolve the issue, set
device->bdev file as NULL after closing the btrfs device in the btrfs close one device() function.
At the moment, there is no information about a newer version that contains a fix for this vulnerability.Exploit
Use After Free
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Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Debian
Linuxmint
Linux Kernel
Ubuntu