SB2025071129 - NULL pointer dereference in Linux kernel serial jsm driver
Published: July 11, 2025
Security Bulletin ID
SB2025071129
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-2025-38265)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the jsm_uart_port_init() function in drivers/tty/serial/jsm/jsm_tty.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/3258d7ff8ebfa451426662b23e8f2b51b129afe1
- https://git.kernel.org/stable/c/985961dd2688a527a4847300d41beaad475ab7af
- https://git.kernel.org/stable/c/a14c0d2eb3f0b1836fdec22908b87ecffd2ac844
- https://git.kernel.org/stable/c/abaecb2a4ad021c2f2426e9b2a9c020aef57aca9
- https://git.kernel.org/stable/c/e3975aa899c0a3bbc10d035e699b142cd1373a71