CVE-2026-72432: Linux kernel · tpm_crb: Check ACPI_COMPANION() against NULL during probe
Source GCVE Database
Not known to be exploited.
Data as of 26 Oct 2026, 17:16 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 9% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Exploitation evidence
Disclosed: evidence found.
CVE published 15 Aug 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: 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 26 Oct 2026.
What to do
AI-suggested
A fix has been implemented in the Linux kernel by adding a NULL check for ACPI_COMPANION() in the tpm_crb driver during probe. Users should update to the fixed kernel version once available. Patch status is not explicitly confirmed in the provided data; check the vendor advisory or Linux kernel mailing lists for the exact fixed versions and update instructions.
Description
A vulnerability in the Linux kernel's tpm_crb driver was resolved by adding a check for the presence of the ACPI companion object during device probing. Without this check, platform drivers relying on the ACPI companion could be forced to match devices incorrectly due to device_match_driver_override(), potentially leading to improper device handling.