#VU89264 Improper Check for Unusual or Exceptional Conditions in Linux kernel - CVE-2021-46934
Published: May 8, 2024
Vulnerability identifier: #VU89264
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-46934
CWE-ID: CWE-754
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 produce warnings from the userspace.
The vulnerability exists due to improper error handling within the compat_i2cdev_ioctl() function in drivers/i2c/i2c-dev.c. A local user can pass specially crafted data to the driver and influence its behavior.
Remediation
Install updates from vendor's website.
External links
- https://git.kernel.org/stable/c/407c8708fb1bf2d4afc5337ef50635cf540c364b
- https://git.kernel.org/stable/c/9e4a3f47eff476097e0c7faac04d1831fc70237d
- https://git.kernel.org/stable/c/8d31cbab4c295d7010ebb729e9d02d0e9cece18f
- https://git.kernel.org/stable/c/f68599581067e8a5a8901ba9eb270b4519690e26
- https://git.kernel.org/stable/c/bb436283e25aaf1533ce061605d23a9564447bdf