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

CVE-2025-38559
MEDIUM 5.5

At a glance

Source
NVD
EPSS
EPSS 0.17 % · percentile 6 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Analyzed

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.

Weaknesses (CWE)

  • CWE-476 — NULL Pointer Dereference

References

Scores

VersionScoreVectorScored by
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected 045a513040cc0242d364c05c3791594e2294f32d < 860d93bd6a21f08883711196344c353bc3936a2b ; affected 045a513040cc0242d364c05c3791594e2294f32d < 18d53b543b5447478e259c96ca4688393f327c98 ; affected 045a513040cc0242d364c05c3791594e2294f32d < 089d05266b2caf020ac2ae2cd2be78f580268f5d ; affected 045a513040cc0242d364c05c3791594e2294f32d < 54d5cd4719c5e87f33d271c9ac2e393147d934f8
Linux · Linuxaffected 6.12 ; unaffected 0 < 6.12 ; unaffected 6.12.42 ≤ 6.12.* ; unaffected 6.15.10 ≤ 6.15.* ; unaffected 6.16.1 ≤ 6.16.* ; unaffected 6.17 ≤ *

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD