CVE-2025-38559

MediumCVSS 5.5/10Last modified Nov 5, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

platform/x86/intel/pmt: fix a crashlog NULL pointer access

Usage of the intel_pmt_read() for binary sysfs, requires a pcidev. The current use of the endpoint value is only valid for telemetry endpoint usage.

Without the ep, the crashlog usage causes the following NULL pointer exception:

BUG: kernel NULL pointer dereference, address: 0000000000000000 Oops: Oops: 0000 [#1] SMP NOPTI RIP: 0010:intel_pmt_read+0x3b/0x70 [pmt_class] Code: Call Trace: <TASK> ? sysfs_kf_bin_read+0xc0/0xe0 kernfs_fop_read_iter+0xac/0x1a0 vfs_read+0x26d/0x350 ksys_read+0x6b/0xe0 __x64_sys_read+0x1d/0x30 x64_sys_call+0x1bc8/0x1d70 do_syscall_64+0x6d/0x110

Augment struct intel_pmt_entry with a pointer to the pcidev to avoid the NULL pointer exception.

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-476

Affected software

VendorProductVersions
LinuxLinux>= 045a513040cc0242d364c05c3791594e2294f32d, < 860d93bd6a21f08883711196344c353bc3936a2b; >= 045a513040cc0242d364c05c3791594e2294f32d, < 18d53b543b5447478e259c96ca4688393f327c98; >= 045a513040cc0242d364c05c3791594e2294f32d, < 089d05266b2caf020ac2ae2cd2be78f580268f5d; >= 045a513040cc0242d364c05c3791594e2294f32d, < 54d5cd4719c5e87f33d271c9ac2e393147d934f8
LinuxLinux6.12

References

Timeline

Published
Aug 19, 2025
Last modified
Nov 5, 2026
NVD status
Analyzed

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CVE-2025-38559: Medium severity, CVSS 5.5 | Vulnix