platform/x86/intel/pmt: fix a crashlog NULL pointer access
Summary
| CVE | CVE-2025-38559 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2025-08-19 17:15:32 UTC |
| Updated | 2026-11-05 22:17:18 UTC |
| 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. |
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
LocalAttack Complexity
LowPrivileges Required
LowUser Interaction
NoneScope
UnchangedConfidentiality
NoneIntegrity
NoneAvailability
HighCVSS: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)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Linux | Linux Kernel | All | All | All | All |
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected 045a513040cc0242d364c05c3791594e2294f32d 860d93bd6a21f08883711196344c353bc3936a2b git | Not specified |
| CNA | Linux | Linux | affected 045a513040cc0242d364c05c3791594e2294f32d 18d53b543b5447478e259c96ca4688393f327c98 git | Not specified |
| CNA | Linux | Linux | affected 045a513040cc0242d364c05c3791594e2294f32d 089d05266b2caf020ac2ae2cd2be78f580268f5d git | Not specified |
| CNA | Linux | Linux | affected 045a513040cc0242d364c05c3791594e2294f32d 54d5cd4719c5e87f33d271c9ac2e393147d934f8 git | Not specified |
| CNA | Linux | Linux | affected 6.12 | Not specified |
| CNA | Linux | Linux | unaffected 6.12 semver | Not specified |
| CNA | Linux | Linux | unaffected 6.12.42 6.12.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.15.10 6.15.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.16.1 6.16.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.17 * original_commit_for_fix | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| git.kernel.org/stable/c/860d93bd6a21f08883711196344c353bc3936a2b | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| git.kernel.org/stable/c/54d5cd4719c5e87f33d271c9ac2e393147d934f8 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| git.kernel.org/stable/c/18d53b543b5447478e259c96ca4688393f327c98 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| git.kernel.org/stable/c/089d05266b2caf020ac2ae2cd2be78f580268f5d | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.