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Back to active CVEs
Unknown severity · Source severity not reportedCVE-2026-31451

ext4: replace BUG_ON with proper error handling in ext4_read_inline_folioCVE-2026-31451

Answer in brief

CVE-2026-31451 records a Unknown severity vulnerability in ext4: replace BUG_ON with proper error handling in ext4_read_inline_folio. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem (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 Apr 22, 2026Updated Oct 15, 2026Source checked Oct 15, 2026First seen by HOL Oct 15, 2026Material review Oct 15, 2026
Upstream Advisory

Key facts

Risk
Unknown severitySource severity not reported
Exploitation
Not marked as known exploited
Affected software
3 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), Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Linux/Linuxgeneric>=46c7f254543dedcf134ad05091ed2b935a9a597d <3462a3f0716d27af51896dc8688bcf0628fb17ee || >=46c7f254543dedcf134ad05091ed2b935a9a597d <636e8d85a36ab6c31aafd04ee66a69b18eebee7b || >=46c7f254543dedcf134ad05091ed2b935a9a597d <af25a6affeac4919e8d8c5cccc01a9d53478447e || >=46c7f254543dedcf134ad05091ed2b935a9a597d <65c6c30ce6362c1c684568744ea510c921a756cd || >=46c7f254543dedcf134ad05091ed2b935a9a597d <d4b3f370c3d8f7ce565d4a718572c9f7c12f77ed || >=46c7f254543dedcf134ad05091ed2b935a9a597d <823849a26af089ffc5dfdd2ae4b9d446b46a0cda || >=46c7f254543dedcf134ad05091ed2b935a9a597d <a7d600e04732a7d29b107c91fe3aec64cf6ce7f2 || >=46c7f254543dedcf134ad05091ed2b935a9a597d <356227096eb66e41b23caf7045e6304877322edf3462a3f0716d27af51896dc8688bcf0628fb17ee, 636e8d85a36ab6c31aafd04ee66a69b18eebee7b, af25a6affeac4919e8d8c5cccc01a9d53478447e, 65c6c30ce6362c1c684568744ea510c921a756cd, d4b3f370c3d8f7ce565d4a718572c9f7c12f77ed, 823849a26af089ffc5dfdd2ae4b9d446b46a0cda, a7d600e04732a7d29b107c91fe3aec64cf6ce7f2, 356227096eb66e41b23caf7045e6304877322edf
Linux/Linuxgeneric3.8Not reported
Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystemgeneric>=0 <**

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux, Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem.
  2. 2Review the reported fix. Update Linux/Linux to 3462a3f0716d27af51896dc8688bcf0628fb17ee; Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem to * if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Apr 22, 2026

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

  2. Source modified

    Oct 15, 2026

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

  3. First seen by HOL

    Oct 15, 2026

Sources and claim methodology

  • Source referencecert-portal.siemens.com
  • 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
  • Source referencegit.kernel.org
Upstream source description

In the Linux kernel, the following vulnerability has been resolved: ext4: replace BUG_ON with proper error handling in ext4_read_inline_folio Replace BUG_ON() with proper error handling when inline data size exceeds PAGE_SIZE. This prevents kernel panic and allows the system to continue running while properly reporting the filesystem corruption. The error is logged via ext4_error_inode(), the buffer head is released to prevent memory leak, and -EFSCORRUPTED is returned to indicate filesystem corruption.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • SODOLA SL902-SWTGW124AS Buffer Overflow DoS via Multipart Boundary ParserSame generic ecosystem
  • Ellucian WebAdvisor 3.2 Unauthenticated XXE InjectionSame generic ecosystem
  • sgl-project SGLang generate Endpoint io_struct.py denial of serviceSame generic ecosystem
  • sgl-project SGLang Session Cleanup session_controller.py Session.create_req denial of serviceSame generic ecosystem
  • ggml-org whisper.cpp Model Loader whisper_model_load out-of-boundsSame generic ecosystem
  • FreeRDP shadow before 3.32.0 Pre-Authentication Input Injection via Confirm Active bypassSame generic ecosystem

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
Not reported
Source
CVE List V5
Source checked
Oct 15, 2026
References
9 linked sources
Open source record