SB20251226306 - Improper Initialization in Linux kernel s390 net driver
Published: December 26, 2025 Updated: December 31, 2025
Security Bulletin ID
SB20251226306
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) Improper Initialization (CVE-ID: CVE-2022-50728)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper initialization within the lcs_txbuffer_cb() and __lcs_start_xmit() functions in drivers/s390/net/lcs.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/20022d551f2064a194d8e0acb6cd7a85094a17b2
- https://git.kernel.org/stable/c/5ad774fb823c24bbeb21a15a67103ea7a6f5b928
- https://git.kernel.org/stable/c/69669820844f81a77b6db24b86581320ae4d17af
- https://git.kernel.org/stable/c/7b4da3fcd513b8e67823eb80da37aad99b3339c1
- https://git.kernel.org/stable/c/bb16db8393658e0978c3f0d30ae069e878264fa3
- https://git.kernel.org/stable/c/cda74cdc280ba35c8993e7517bac5c257ff36f18
- https://git.kernel.org/stable/c/d49cc2b705711fb8fb849e7c660929b2100360b7
- https://git.kernel.org/stable/c/e684215d8a903752e2b0cc946517fb61e57a880a
- https://git.kernel.org/stable/c/ebc3c77785dc8b5b626309c0032a38fbb139287a
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.163