SB2024050836 - Memory leak in Linux kernel caif
Published: May 8, 2024 Updated: May 14, 2025
Security Bulletin ID
SB2024050836
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-2021-47122)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the caif_device_notify() function in net/caif/caif_dev.c. A local user can perform a denial of service attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/b042e2b2039565eb8f0eb51c14fbe1ef463c8cd8
- https://git.kernel.org/stable/c/9348c1f10932f13b299cbc8b1bd5f780751fae49
- https://git.kernel.org/stable/c/4bca2034b41c15b62d47a19158bb76235fd4455d
- https://git.kernel.org/stable/c/3be863c11cab725add9fef4237ed4e232c3fc3bb
- https://git.kernel.org/stable/c/f52f4fd67264c70cd0b4ba326962ebe12d9cba94
- https://git.kernel.org/stable/c/af2806345a37313f01b1c9f15e046745b8ee2daa
- https://git.kernel.org/stable/c/6a0e317f61094d377335547e015dd2ff12caf893
- https://git.kernel.org/stable/c/b53558a950a89824938e9811eddfc8efcd94e1bb
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.236
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.194
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.272
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.272
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.43
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.10
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.125