SB2025120889 - NULL pointer dereference in Linux kernel gadget function driver
Published: December 8, 2025
Security Bulletin ID
SB2025120889
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-2025-40315)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the ffs_func_eps_enable() function in drivers/usb/gadget/function/f_fs.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/1c0dbd240be3f87cac321b14e17979b7e9cb6a8f
- https://git.kernel.org/stable/c/30880e9df27332403dd638a82c27921134b3630b
- https://git.kernel.org/stable/c/9ec40fba7357df2d36f4c2e2f3b9b1a4fba0a272
- https://git.kernel.org/stable/c/b00d2572c16e8e59e979960d3383c2ae9cebd195
- https://git.kernel.org/stable/c/c53e90563bc148e4e0ad09fe130ba2246d426ea6
- https://git.kernel.org/stable/c/cfd6f1a7b42f62523c96d9703ef32b0dbc495ba4
- https://git.kernel.org/stable/c/d62b808d5c68a931ad0849a00a5e3be3dd7e0019
- https://git.kernel.org/stable/c/fc1141a530dfc91f0ee19b7f422a2d24829584bc