#VU90504 NULL pointer dereference in Linux kernel - CVE-2021-47413
Published: May 31, 2024 / Updated: May 14, 2025
Vulnerability identifier: #VU90504
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-2021-47413
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 ci_hdrc_imx_probe() function in drivers/usb/chipidea/ci_hdrc_imx.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/b3265b88e83b16c7be762fa5fb7e0632bce0002c
- https://git.kernel.org/stable/c/66dd03b10e1c0b2fae006c6e34c18ea8ee033e7b
- https://git.kernel.org/stable/c/8253a34bfae3278baca52fc1209b7c29270486ca
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.73
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.12
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15