SB2025022792 - NULL pointer dereference in Linux kernel usb core driver
Published: February 27, 2025 Updated: May 11, 2025
Security Bulletin ID
SB2025022792
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-2025-21776)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the hub_probe() function in drivers/usb/core/hub.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/2240fed37afbcdb5e8b627bc7ad986891100e05d
- https://git.kernel.org/stable/c/5b9778e1fe715700993ce436c152dc3b7df0b490
- https://git.kernel.org/stable/c/62d8f4c5454dd39aded4f343720d1c5a1803cfef
- https://git.kernel.org/stable/c/c3720b04df84b5459050ae4e03ec7d545652f897
- https://git.kernel.org/stable/c/e905a0fca7bff0855d312c16f71e60e1773b393e
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.79