SB20250619116 - Memory leak in Linux kernel sched
Published: June 19, 2025 Updated: June 21, 2025
Security Bulletin ID
SB20250619116
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Memory leak (CVE-ID: CVE-2022-49958)
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 website.
References
- 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