SB20241022162 - Double free in Linux kernel s390 net driver
Published: October 22, 2024 Updated: May 12, 2025
Security Bulletin ID
SB20241022162
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) Double free (CVE-ID: CVE-2022-48954)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a double free error within the qeth_l2_br2dev_worker() and dev_put() functions in drivers/s390/net/qeth_l2_main.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/db6343a5b0d9661f2dd76f653c6d274d38234d2b
- https://git.kernel.org/stable/c/bde0dfc7c4569406a6ddeec363d04a1df7b3073f
- https://git.kernel.org/stable/c/ebaaadc332cd21e9df4dcf9ce12552d9354bbbe4
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.83
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1