SB20240621100 - NULL pointer dereference in Linux kernel usb dwc3 driver
Published: June 21, 2024 Updated: May 13, 2025
Security Bulletin ID
SB20240621100
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-2021-47272)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the dwc3_gadget_free_endpoints() and dwc3_gadget_exit() functions in drivers/usb/dwc3/gadget.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/851dee5a5da56564a70290713aee665403bb0b24
- https://git.kernel.org/stable/c/4aad390363d2b9b3e92428dd34d27bb7ea8f1ee8
- https://git.kernel.org/stable/c/03715ea2e3dbbc56947137ce3b4ac18a726b2f87
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.44
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.11
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13