SB2025021276 - Input validation error in Linux kernel gadget function driver
Published: February 12, 2025 Updated: May 11, 2025
Security Bulletin ID
SB2025021276
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) Input validation error (CVE-ID: CVE-2025-21698)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the gserial_disconnect() function in drivers/usb/gadget/function/u_serial.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/086fd062bc3883ae1ce4166cff5355db315ad879
- https://git.kernel.org/stable/c/20ce02f2f73af331dec76d3b8b78b18f4699db05
- https://git.kernel.org/stable/c/33233b06ad15730d0463e8f152db2eca15c7f498
- https://git.kernel.org/stable/c/3d8f4dc8c78ffd77a4106614977c1e51531690f7
- https://git.kernel.org/stable/c/76e7577bb89b327abdf72d4c0d486074a17f712a
- https://git.kernel.org/stable/c/99c866bea85efdebfb6953a8a305f21ef5ca4991
- https://git.kernel.org/stable/c/bb50dc2aa49dcb5cc81205d814c08337b5da28ac
- https://git.kernel.org/stable/c/f8b8883ad76d36ee890b18311096af7af7d7a921
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.13.1