#VU115458 NULL pointer dereference in Linux kernel - CVE-2022-50244
Published: September 16, 2025 / Updated: September 22, 2025
Vulnerability identifier: #VU115458
Vulnerability risk: Low
CVSSv4.0: 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
CVE-ID: CVE-2022-50244
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the pci_init_afu() and cxl_pci_init_adapter() functions in drivers/misc/cxl/pci.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's repository.
External links
- https://git.kernel.org/stable/c/02cd3032b154fa02fdf90e7467abaeed889330b2
- https://git.kernel.org/stable/c/0f63c0ddc2ea20d783d29243f4dbe0f9e95dfdec
- https://git.kernel.org/stable/c/139abd4c626a6f7ce02789ed5f73aa2256e0542b
- https://git.kernel.org/stable/c/22511eefa61db26e12c97dd7ada3071dbdfcb004
- https://git.kernel.org/stable/c/2f5fd31b2f24b9b8a80ab566fd8c4e1e94cb4339
- https://git.kernel.org/stable/c/361412dae1690d4b5df6f92fc943cdc773c95cbc
- https://git.kernel.org/stable/c/82e5481428faf11c79b9c094dd24a1849bbf64ac
- https://git.kernel.org/stable/c/82e68432668ae75b4c814d160f6987ecb0681273
- https://git.kernel.org/stable/c/c4b2e35df919d99bbbed033c2fa0b607f9f463b5
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.270