#VU111660 Buffer overflow in Linux kernel - CVE-2022-50086
Published: June 20, 2025 / Updated: June 21, 2025
Vulnerability identifier: #VU111660
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2022-50086
CWE-ID: CWE-119
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory corruption within the wbt_init() function in block/blk-wbt.c, within the blk_iolatency_init() function in block/blk-iolatency.c, within the blk_iocost_init() function in block/blk-iocost.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's repository.
External links
- https://git.kernel.org/stable/c/08ef66e800a85afc6b54cb95841f6502627eee2e
- https://git.kernel.org/stable/c/0b7f5d7a4d2a72ad9de04ab8ccba2a31904aa638
- https://git.kernel.org/stable/c/0c9bb1acd1d103a3070b2126870eb52761d606ce
- https://git.kernel.org/stable/c/14a6e2eb7df5c7897c15b109cba29ab0c4a791b6
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.61
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.18
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.2
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0