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Back to active CVEs
Unknown severity · Source severity not reportedCVE-2026-89989

ima: Check for ERR_PTR from dentry_path() in validate_hash_algo()CVE-2026-89989

Answer in brief

CVE-2026-89989 records a Unknown severity vulnerability in ima: Check for ERR_PTR from dentry_path() in validate_hash_algo(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 16, 2026Updated Oct 19, 2026Source checked Oct 31, 2026First seen by HOL Sep 16, 2026Material review Oct 19, 2026
Upstream Advisory

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
Not reported
Source
CVE List V5
Source checked
Oct 31, 2026
References
7 linked sources
Open source record

Key facts

Risk
Unknown severitySource severity not reported
Exploitation
Not marked as known exploited
Affected software
2 mapped packages or products
Fix availability
Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Linux/Linuxgeneric>=4f2946aa0c45c78b4f4ef101bab9694e38c68db0 <d6fade89903c8fd0af6c956242aec8b927040e02 || >=4f2946aa0c45c78b4f4ef101bab9694e38c68db0 <0de5b525c0cd7d202848b8adfde3c01c287fb1a6 || >=4f2946aa0c45c78b4f4ef101bab9694e38c68db0 <30b5c0e17dcad72b6b2f987319aa645570e6376d || >=4f2946aa0c45c78b4f4ef101bab9694e38c68db0 <9e69d683ebd7def04557fe758ff123105d7d9840 || >=4f2946aa0c45c78b4f4ef101bab9694e38c68db0 <f8a2f2a4602318eb93d49d27fd0d0fdaab17edde || >=4f2946aa0c45c78b4f4ef101bab9694e38c68db0 <d62a84a78de5f29c642fa3bd4eee072ba7289cb4 || >=4f2946aa0c45c78b4f4ef101bab9694e38c68db0 <8861f6d5c0678a7c5089c7b272509fc5931b8437d6fade89903c8fd0af6c956242aec8b927040e02, 0de5b525c0cd7d202848b8adfde3c01c287fb1a6, 30b5c0e17dcad72b6b2f987319aa645570e6376d, 9e69d683ebd7def04557fe758ff123105d7d9840, f8a2f2a4602318eb93d49d27fd0d0fdaab17edde, d62a84a78de5f29c642fa3bd4eee072ba7289cb4, 8861f6d5c0678a7c5089c7b272509fc5931b8437
Linux/Linuxgeneric5.15Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
  2. 2Review the reported fix. Update Linux/Linux to d6fade89903c8fd0af6c956242aec8b927040e02 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Sep 16, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 19, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Sep 16, 2026

Sources and claim methodology

  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
Upstream source description

In the Linux kernel, the following vulnerability has been resolved: ima: Check for ERR_PTR from dentry_path() in validate_hash_algo() dentry_path() returns ERR_PTR(-ENAMETOOLONG) when the path exceeds the buffer. validate_hash_algo() passes the result straight to integrity_audit_msg() without checking. ERR_PTR is not NULL, so integrity_audit_message() sees a valid pointer and calls strlen() on it, which faults: BUG: unable to handle page fault for address: ffffffffffffffdc RIP: 0010:strlen+0x30/0xa0 Call Trace: audit_log_untrustedstring+0x19/0x30 integrity_audit_message+0x366/0x4f0 ima_inode_setxattr+0x512/0x5f0 Check for IS_ERR() and use NULL instead, which makes the audit message skip the name= field instead of crashing.

Quoted source text, attributed separately from HOL analysis.