CVE-2025-38265
5.5 · MEDIUMIn the Linux kernel, the following vulnerability has been resolved: serial: jsm: fix NPE during jsm_uart_port_init No device was set which caused serial_base_ctrl_add to crash.
Overview
CVE-2025-38265 is a medium-severity vulnerability. It was published on July 10, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
Technical description
In the Linux kernel, the following vulnerability has been resolved:
serial: jsm: fix NPE during jsm_uart_port_init
No device was set which caused serial_base_ctrl_add to crash.
BUG: kernel NULL pointer dereference, address: 0000000000000050
Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI
CPU: 16 UID: 0 PID: 368 Comm: (udev-worker) Not tainted 6.12.25-amd64 #1 Debian 6.12.25-1
RIP: 0010:serial_base_ctrl_add+0x96/0x120
Call Trace:
<TASK>
serial_core_register_port+0x1a0/0x580
? __setup_irq+0x39c/0x660
? __kmalloc_cache_noprof+0x111/0x310
jsm_uart_port_init+0xe8/0x180 [jsm]
jsm_probe_one+0x1f4/0x410 [jsm]
local_pci_probe+0x42/0x90
pci_device_probe+0x22f/0x270
really_probe+0xdb/0x340
? pm_runtime_barrier+0x54/0x90
? __pfx___driver_attach+0x10/0x10
__driver_probe_device+0x78/0x110
driver_probe_device+0x1f/0xa0
__driver_attach+0xba/0x1c0
bus_for_each_dev+0x8c/0xe0
bus_add_driver+0x112/0x1f0
driver_register+0x72/0xd0
jsm_init_module+0x36/0xff0 [jsm]
? __p
Remediation
Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
References
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Frequently asked questions
What is CVE-2025-38265?
CVE-2025-38265 is a medium-severity vulnerability. It was published on July 10, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).
How severe is CVE-2025-38265?
This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2025-38265?
Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2025-38265?
CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-38265 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.
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