SB20250226484 - Improper locking in Linux kernel watchdog driver
Published: February 26, 2025 Updated: May 11, 2025
Security Bulletin ID
SB20250226484
CSH 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 vulnerability.
1) Improper locking (CVE-ID: CVE-2022-49383)
CWE-ID: CWE-667 - Improper Locking
CVSSv4: 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
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the rzg2l_wdt_wait_delay(), rzg2l_wdt_restart() and rzg2l_wdt_probe() functions in drivers/watchdog/rzg2l_wdt.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/0a635239cd5484d8f2e702713ccc49ec82aa7594
- https://git.kernel.org/stable/c/6505541e5298cea2b79da68ee626f583f8e18784
- https://git.kernel.org/stable/c/e4cf89596c1f1e33309556699f910ced4abbaf44
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.15
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.4
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19