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Back to active CVEs
Unknown severity · Source severity not reportedCVE-2024-35988

riscv: Fix TASK_SIZE on 64-bit NOMMUCVE-2024-35988

Answer in brief

CVE-2024-35988 records a Unknown severity vulnerability in riscv: Fix TASK_SIZE on 64-bit NOMMU. 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 May 20, 2024Updated Oct 15, 2026Source checked Oct 15, 2026First seen by HOL Oct 15, 2026Material review Oct 15, 2026
Upstream Advisory

Record context

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

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>=6bd33e1ece528f67646db33bf97406b747dafda0 <04bf2e5f95c1a52e28a7567a507f926efe31c3b6 || >=6bd33e1ece528f67646db33bf97406b747dafda0 <52e8a42b11078d2aad4b9ba96503d77c7299168b || >=6bd33e1ece528f67646db33bf97406b747dafda0 <4201b8c8f2c32af321fb50867e68ac6c1cbed4be || >=6bd33e1ece528f67646db33bf97406b747dafda0 <a0f0dbbb1bc49fa0de18e92c36492ff6d804cdaa || >=6bd33e1ece528f67646db33bf97406b747dafda0 <efdcfa554b6eb228943ef1dd4d023c606be647d2 || >=6bd33e1ece528f67646db33bf97406b747dafda0 <6065e736f82c817c9a597a31ee67f0ce4628e94804bf2e5f95c1a52e28a7567a507f926efe31c3b6, 52e8a42b11078d2aad4b9ba96503d77c7299168b, 4201b8c8f2c32af321fb50867e68ac6c1cbed4be, a0f0dbbb1bc49fa0de18e92c36492ff6d804cdaa, efdcfa554b6eb228943ef1dd4d023c606be647d2, 6065e736f82c817c9a597a31ee67f0ce4628e948
Linux/Linuxgeneric5.5Not reported
Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystemgeneric>=0 <V1.1.1V1.1.1

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 04bf2e5f95c1a52e28a7567a507f926efe31c3b6; Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem to V1.1.1 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    May 20, 2024

    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 referencelists.debian.org
Upstream source description

In the Linux kernel, the following vulnerability has been resolved: riscv: Fix TASK_SIZE on 64-bit NOMMU On NOMMU, userspace memory can come from anywhere in physical RAM. The current definition of TASK_SIZE is wrong if any RAM exists above 4G, causing spurious failures in the userspace access routines.

Quoted source text, attributed separately from HOL analysis.

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