CVE-2025-38265

serial: jsm: fix NPE during jsm_uart_port_init

State: Published
Severity: Not scored
Published: Jul 10, 2025
Updated: May 11, 2026
Reserved: Apr 16, 2025

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] ? __pfx_jsm_init_module+0x10/0x10 [jsm] do_one_initcall+0x58/0x310 do_init_module+0x60/0x230

Tested with Digi Neo PCIe 8 port card.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	84a9582fd203063cd4d301204971ff2cd8327f1a to before 3258d7ff8ebfa451426662b23e8f2b51b129afe1Affected 84a9582fd203063cd4d301204971ff2cd8327f1a to before 985961dd2688a527a4847300d41beaad475ab7afAffected 84a9582fd203063cd4d301204971ff2cd8327f1a to before a14c0d2eb3f0b1836fdec22908b87ecffd2ac844Affected 84a9582fd203063cd4d301204971ff2cd8327f1a to before abaecb2a4ad021c2f2426e9b2a9c020aef57aca9Affected 84a9582fd203063cd4d301204971ff2cd8327f1a to before e3975aa899c0a3bbc10d035e699b142cd1373a71Affected
LinuxLinux	6.5Affected before 6.5Not affected 6.6.94 through 6.6.Not affected 6.12.33 through 6.12.Not affected 6.14.11 through 6.14.Not affected 6.15.2 through 6.15.Not affected 6.16 and laterNot affected

Product

Versions

LinuxLinux

84a9582fd203063cd4d301204971ff2cd8327f1a to before 3258d7ff8ebfa451426662b23e8f2b51b129afe1Affected
84a9582fd203063cd4d301204971ff2cd8327f1a to before 985961dd2688a527a4847300d41beaad475ab7afAffected
84a9582fd203063cd4d301204971ff2cd8327f1a to before a14c0d2eb3f0b1836fdec22908b87ecffd2ac844Affected
84a9582fd203063cd4d301204971ff2cd8327f1a to before abaecb2a4ad021c2f2426e9b2a9c020aef57aca9Affected
84a9582fd203063cd4d301204971ff2cd8327f1a to before e3975aa899c0a3bbc10d035e699b142cd1373a71Affected

LinuxLinux

6.5Affected
before 6.5Not affected
6.6.94 through 6.6.*Not affected
6.12.33 through 6.12.*Not affected
6.14.11 through 6.14.*Not affected
6.15.2 through 6.15.*Not affected
6.16 and laterNot affected

References

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