SB2025091864 - NULL pointer dereference in Linux kernel gadget function driver
Published: September 18, 2025 Updated: September 22, 2025
Security Bulletin ID
SB2025091864
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-2023-53356)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the EXPORT_SYMBOL_GPL() 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/2788a3553f7497075653210b42e2aeb6ba95e28e
- https://git.kernel.org/stable/c/2f6ecb89fe8feb2b60a53325b0eeb9866d88909a
- https://git.kernel.org/stable/c/374447e3367767156405bedd230c5d391f4b7962
- https://git.kernel.org/stable/c/a8ea7ed644cbf6314b5b0136b5398754b549fb8f
- https://git.kernel.org/stable/c/e60a827ac074ce6bd58305fe5a86afab5fce6a04
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.39