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Back to active CVEs
Unknown severity · Source severity not reportedCVE-2024-40945

iommu: Return right value in iommu_sva_bind_device()CVE-2024-40945

Answer in brief

CVE-2024-40945 records a Unknown severity vulnerability in iommu: Return right value in iommu_sva_bind_device(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/RUGGEDCOM RST2428P (generic), Siemens/SCALANCE XCM-/XRM-/XCH-/XRH-300 family (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.

Analysis pending evidence review

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

Published Jul 12, 2024Updated 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
5 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/RUGGEDCOM RST2428P (generic), Siemens/SCALANCE XCM-/XRM-/XCH-/XRH-300 family (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Linux/Linuxgeneric>=26b25a2b98e45aeb40eedcedc586ad5034cbd984 <700f564758882db7c039dfba9443fe762561a3f8 || >=26b25a2b98e45aeb40eedcedc586ad5034cbd984 <cf34f8f66982a36e5cba0d05781b21ec9606b91e || >=26b25a2b98e45aeb40eedcedc586ad5034cbd984 <2973b8e7d127754de9013177c41c0b5547406998 || >=26b25a2b98e45aeb40eedcedc586ad5034cbd984 <6325eab6c108fed27f60ff51852e3eac0ba23f3f || >=26b25a2b98e45aeb40eedcedc586ad5034cbd984 <7388ae6f26c0ba95f70cc96bf9c5d5cb06c908b6 || >=26b25a2b98e45aeb40eedcedc586ad5034cbd984 <61a96da9649a6b6a1a5d5bde9374b045fdb5c12e || >=26b25a2b98e45aeb40eedcedc586ad5034cbd984 <89e8a2366e3bce584b6c01549d5019c5cda1205e700f564758882db7c039dfba9443fe762561a3f8, cf34f8f66982a36e5cba0d05781b21ec9606b91e, 2973b8e7d127754de9013177c41c0b5547406998, 6325eab6c108fed27f60ff51852e3eac0ba23f3f, 7388ae6f26c0ba95f70cc96bf9c5d5cb06c908b6, 61a96da9649a6b6a1a5d5bde9374b045fdb5c12e, 89e8a2366e3bce584b6c01549d5019c5cda1205e
Linux/Linuxgeneric5.2Not reported
Siemens/RUGGEDCOM RST2428Pgeneric>=0 <V3.1V3.1
Siemens/SCALANCE XCM-/XRM-/XCH-/XRH-300 familygeneric>=0 <V3.1V3.1
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/RUGGEDCOM RST2428P.
  2. 2Review the reported fix. Update Linux/Linux to 700f564758882db7c039dfba9443fe762561a3f8; Siemens/RUGGEDCOM RST2428P to V3.1; Siemens/SCALANCE XCM-/XRM-/XCH-/XRH-300 family to V3.1; 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

    Jul 12, 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 referencecert-portal.siemens.com
  • Source referencecert-portal.siemens.com
  • 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 referencelists.debian.org
Upstream source description

In the Linux kernel, the following vulnerability has been resolved: iommu: Return right value in iommu_sva_bind_device() iommu_sva_bind_device() should return either a sva bond handle or an ERR_PTR value in error cases. Existing drivers (idxd and uacce) only check the return value with IS_ERR(). This could potentially lead to a kernel NULL pointer dereference issue if the function returns NULL instead of an error pointer. In reality, this doesn't cause any problems because iommu_sva_bind_device() only returns NULL when the kernel is not configured with CONFIG_IOMMU_SVA. In this case, iommu_dev_enable_feature(dev, IOMMU_DEV_FEAT_SVA) will return an error, and the device drivers won't call iommu_sva_bind_device() at all.

Quoted source text, attributed separately from HOL analysis.

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Record context

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