VulnerabilityPublished 19 Aug 2025Updated 5 Nov 2026

CVE-2025-38559: Linux kernel · platform/x86/intel/pmt: fix a crashlog NULL pointer access

Affects Linux kernelSource CVE Database V5

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Not known to be exploited · fixed in 860d93bd6a21f08883711196344c353bc3936a2b : update Linux kernel when convenient.

Data as of 5 Nov 2026, 21:34 UTC

Severity

Unrated

Rated by Threat Radar · No CVSS score from NVD or the CNA

Thin evidence

One scorer or none

Exploitation: No evidence of active exploitation and no public proof of concept
Automatable: Attackers cannot reliably automate steps 1–4 of the kill chain
Technical impact: Limited control over the software or limited information exposure

CISA SSVC assessment, 2026-11-05.

Patch

Available – fixed in 860d93bd6a21f08883711196344c353bc3936a2b, 089d05266b2caf020ac2ae2cd2be78f580268f5d, 54d5cd4719c5e87f33d271c9ac2e393147d934f8 +1

Exploitation evidence

Disclosed: evidence found.
CVE published 19 Aug 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade Linux kernel to 860d93bd6a21f08883711196344c353bc3936a2b, 089d05266b2caf020ac2ae2cd2be78f580268f5d, 54d5cd4719c5e87f33d271c9ac2e393147d934f8 or 18d53b543b5447478e259c96ca4688393f327c98.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 045a513040cc0242d364c05c3791594e2294f32d, < 860d93bd6a21f08883711196344c353bc3936a2b	Fixed in 860d93bd6a21f08883711196344c353bc3936a2b
LinuxLinux	Affected ≥ 045a513040cc0242d364c05c3791594e2294f32d, < 089d05266b2caf020ac2ae2cd2be78f580268f5d	Fixed in 089d05266b2caf020ac2ae2cd2be78f580268f5d
LinuxLinux	Affected ≥ 045a513040cc0242d364c05c3791594e2294f32d, < 54d5cd4719c5e87f33d271c9ac2e393147d934f8	Fixed in 54d5cd4719c5e87f33d271c9ac2e393147d934f8
LinuxLinux	Affected ≥ 045a513040cc0242d364c05c3791594e2294f32d, < 18d53b543b5447478e259c96ca4688393f327c98	Fixed in 18d53b543b5447478e259c96ca4688393f327c98
LinuxLinux	Affected =6.12	Fixed in–

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.

References

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