serial: jsm: fix NPE during jsm_uart_port_init

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2025-38265
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-07-10 08:15:24 UTC
Updated2026-11-05 21:18:23 UTC
DescriptionIn 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.

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Problem Types: CWE-476

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 84a9582fd203063cd4d301204971ff2cd8327f1a 3258d7ff8ebfa451426662b23e8f2b51b129afe1 git Not specified
CNA Linux Linux affected 84a9582fd203063cd4d301204971ff2cd8327f1a 985961dd2688a527a4847300d41beaad475ab7af git Not specified
CNA Linux Linux affected 84a9582fd203063cd4d301204971ff2cd8327f1a a14c0d2eb3f0b1836fdec22908b87ecffd2ac844 git Not specified
CNA Linux Linux affected 84a9582fd203063cd4d301204971ff2cd8327f1a abaecb2a4ad021c2f2426e9b2a9c020aef57aca9 git Not specified
CNA Linux Linux affected 84a9582fd203063cd4d301204971ff2cd8327f1a e3975aa899c0a3bbc10d035e699b142cd1373a71 git Not specified
CNA Linux Linux affected 6.5 Not specified
CNA Linux Linux unaffected 6.5 semver Not specified
CNA Linux Linux unaffected 6.6.94 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.33 6.12.* semver Not specified
CNA Linux Linux unaffected 6.14.11 6.14.* semver Not specified
CNA Linux Linux unaffected 6.15.2 6.15.* semver Not specified
CNA Linux Linux unaffected 6.16 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/a14c0d2eb3f0b1836fdec22908b87ecffd2ac844 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/abaecb2a4ad021c2f2426e9b2a9c020aef57aca9 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/3258d7ff8ebfa451426662b23e8f2b51b129afe1 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/e3975aa899c0a3bbc10d035e699b142cd1373a71 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/985961dd2688a527a4847300d41beaad475ab7af 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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