NULL pointer dereference in Linux kernel - CVE-2022-48922
Published: August 22, 2024 / Updated: May 12, 2025
Vulnerability identifier: #VU96425
CSH Severity: Low
CVSS v4: 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]
CVE-ID: CVE-2022-48922
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the PT_STATUS() function in arch/riscv/kernel/entry.S, within the obj-$() function in arch/riscv/kernel/Makefile. A local user can perform a denial of service (DoS) attack.
Affected software
Linux kernel
How to mitigate CVE-2022-48922
Install update from vendor's website.
Linux kernel - addressed in versions 5.10.103, 5.15.26, 5.16.12, 5.17
External References
- https://git.kernel.org/stable/c/9e2dbc31e367d08ee299a0d8aeb498cb2e12a1c3
- https://git.kernel.org/stable/c/1851b9a467065b18ec2cba156eea345206df1c8f
- https://git.kernel.org/stable/c/b5e180490db4af8c0f80c4b65ee482d333d0e8ee
- https://git.kernel.org/stable/c/22e2100b1b07d6f5acc71cc1acb53f680c677d77
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.103
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.26
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.12
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17