#VU90388 NULL pointer dereference in Linux kernel - CVE-2021-47503
Published: May 31, 2024 / Updated: May 14, 2025
Vulnerability identifier: #VU90388
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-2021-47503
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 pm8001_alloc() function in drivers/scsi/pm8001/pm8001_init.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/1e434d2687e8bc0b3cdc9dd093c0e9047c0b4add
- https://git.kernel.org/stable/c/f8dccc1bdea7e21b5ec06c957aef8831c772661c
- https://git.kernel.org/stable/c/653926205741add87a6cf452e21950eebc6ac10b
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.85
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.8
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16