SB20260816518 - Improper Initialization in Linux kernel ralink rt2x00 driver
Published: August 16, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper Initialization (CVE-ID: CVE-2026-72005)
CWE-ID: CWE-665 - Improper Initialization
CVSSv4: 6.8 [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]
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to improper initialization in rt2x00lib_probe_dev() and rt2x00lib_remove_dev() when handling probe failures before work items are initialized. A local user can trigger an early probe failure to cause a denial of service.
The issue occurs when drv_data or workqueue allocation fails before intf_work, autowakeup_work, and sleep_work have been set up.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/3c0427d719bddb33caf18ff4ffb77cb47de7eb00
- https://git.kernel.org/stable/c/536fb3d739d75a03cb318c0c6fe799425cfea501
- https://git.kernel.org/stable/c/56994852d704535ea354a4627ca667b1b4fa0deb
- https://git.kernel.org/stable/c/59afe6148927395cf86f9429900e029a48b1d42b
- https://git.kernel.org/stable/c/66bd9b1a72de7c2f5141b02d796048aafaed8a49
- https://git.kernel.org/stable/c/816559409e340acaa5c9d868291dab30d8c80263
- https://git.kernel.org/stable/c/8b58d1f1356df6a7d2de3f55bb665b18b04ffda0
- https://git.kernel.org/stable/c/eb7474d0253bb2de4793e1d3ce833e8564bbe732