PT-2025-8107 · Linux+4 · Linux Kernel+4
Yu Kuai
·
Published
2022-02-18
·
Updated
2025-11-18
·
CVE-2022-49179
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 versions prior to 4.19.90-yk #5
Description
A use-after-free issue has been identified in the Linux kernel, specifically in the block, bfq module. The issue arises from the
bfq put async bfqq function, which can lead to a write of size 8 at an address that has already been freed. This can cause a system crash or potentially allow an attacker to execute arbitrary code. The vulnerability is related to the bfq put async queues and bfq pd offline functions.Recommendations
For Linux kernel version 4.19.90-yk #5 and earlier, update to a newer version that contains a fix for this issue.
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
Astra Linux
Linux Kernel
Red Hat
Suse
Ubuntu