#VU111401 Memory leak in Linux kernel - CVE-2022-49958
Published: June 19, 2025 / Updated: June 21, 2025
Vulnerability identifier: #VU111401
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-2022-49958
CWE-ID: CWE-401
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 leak within the dev_graft_qdisc(), attach_default_qdiscs() and dev_init_scheduler() functions in net/sched/sch_generic.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/0c6c522857151ac00150fd01baeebf231fb7d142
- https://git.kernel.org/stable/c/44dfa645895a56f65461249deb5b81cd16560e2a
- https://git.kernel.org/stable/c/a420d587260185407eda9c5766cfa9bdd5c39a56
- https://git.kernel.org/stable/c/f612466ebecb12a00d9152344ddda6f6345f04dc
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.142
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.66
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.8
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0