SB20251226195 - NULL pointer dereference in Linux kernel usb dvb-usb-v2 driver
Published: December 26, 2025 Updated: December 31, 2025
Security Bulletin ID
SB20251226195
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) NULL pointer dereference (CVE-ID: CVE-2023-54066)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the gl861_i2c_master_xfer() function in drivers/media/usb/dvb-usb-v2/gl861.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/2a33fc57133d6f39d62285df6706aeb1714967f1
- https://git.kernel.org/stable/c/578b67614ae0e4fba3945b66a4c8f9ae77115bcb
- https://git.kernel.org/stable/c/72af676551efe820e309a6c7681c2c4372f37376
- https://git.kernel.org/stable/c/b97719a66970601cd3151a3e2020f4454a1c4ff6
- https://git.kernel.org/stable/c/dfcd3c010209927b9f45b860f046635dc32e32e1
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.55