SB20250916170 - NULL pointer dereference in Linux kernel usb dvb-usb-v2 driver
Published: September 16, 2025 Updated: September 22, 2025
Security Bulletin ID
SB20250916170
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-2023-53220)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the az6007_i2c_xfer() function in drivers/media/usb/dvb-usb-v2/az6007.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/1047f9343011f2cedc73c64829686206a7e9fc3f
- https://git.kernel.org/stable/c/5b1ea100ad3695025969dc4693f307877fb688d6
- https://git.kernel.org/stable/c/6ab7ea4e17d6a605d05308adf8f3408924770cba
- https://git.kernel.org/stable/c/991c77fe18c6f374bbf83376f8c42550aa565662
- https://git.kernel.org/stable/c/a1110f19d4940e4185251d072cbb0ff51486a1e7
- https://git.kernel.org/stable/c/a9def3e9718a4dc756f48db147d42ec41a966240
- https://git.kernel.org/stable/c/adcb73f8ce9aec48b1f85223f401c1574015d8d2
- https://git.kernel.org/stable/c/c6763fefa267f6e62595a6ac1f57815d99fc90b7
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.326