SB2025050275 - Memory leak in Linux kernel isdn mISDN driver
Published: May 2, 2025 Updated: May 10, 2025
Security Bulletin ID
SB2025050275
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-2022-49821)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the mISDN_dsp_element_register() and device_unregister() functions in drivers/isdn/mISDN/dsp_pipeline.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/083a2c9ef82e184bdf0b9f9a1e5fc38d32afbb47
- https://git.kernel.org/stable/c/0f2c681900a01e3f23789bca26d88268c3d5b51d
- https://git.kernel.org/stable/c/727ed7d28348c026c7ef4d852f3d0e5054d376e8
- https://git.kernel.org/stable/c/7a05e3929668c8cfef495c69752a9e91fac4878f
- https://git.kernel.org/stable/c/98a2ac1ca8fd6eca6867726fe238d06e75eb1acd
- https://git.kernel.org/stable/c/b119bedbefb7dd9ed8bf8cb9f1056504250d610e
- https://git.kernel.org/stable/c/bbd53d05c4c892080ef3b617eff4f57903acecb9
- https://git.kernel.org/stable/c/d4b8394725079670be309f9a35ad88a8cbbaaefd
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.10