CVE-2024-40945

Aliases:UBUNTU-CVE-2024-40945DEBIAN-CVE-2024-40945
Advisory lineage Upstream: 0 Downstream: 32
Modified
Published: 12 Jul 2024, 12:25
Last modified:12 May 2026, 11:55

Vulnerability Summary

Overall Risk (default)
low
22/100
CVSS Score
5.5 MEDIUM
v3.1 (nvd)
EPSS Score
0.26% LOW
0% probability +0.24%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

12 Jul 2024, 12:25
Published
Vulnerability first disclosed
12 May 2026, 11:55
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Trends

Current EPSS score: 0.26%• Percentile: 18%

Techniques & Countermeasures

  • CWE-476•NULL Pointer Dereference

    The product dereferences a pointer that it expects to be valid but is NULL.

Affected Systems

  • debian•linux

    < 5.10.221-1 | < 6.1.129-1 | < 6.9.7-1 | < 6.9.7-1

  • debian•linux-6.1

    < 6.1.129-1~deb11u1

  • ubuntu•linux

    < 5.4.0-195.215 | < 5.15.0-121.131 | < 6.8.0-44.44

  • ubuntu•linux-allwinner-5.19

    all

  • ubuntu•linux-aws

    < 5.4.0-1132.142 | < 5.15.0-1069.75 | < 6.8.0-1015.16

  • ubuntu•linux-aws-5.0

    all

  • ubuntu•linux-aws-5.11

    all

  • ubuntu•linux-aws-5.13

    all

  • ubuntu•linux-aws-5.15

    < 5.15.0-1069.75~20.04.1

  • ubuntu•linux-aws-5.19

    all

  • ubuntu•linux-aws-5.3

    all

  • ubuntu•linux-aws-5.4

    < 5.4.0-1132.142~18.04.1

  • ubuntu•linux-aws-5.8

    all

  • ubuntu•linux-aws-6.2

    all

  • ubuntu•linux-aws-6.5

    all

  • ubuntu•linux-aws-6.8

    < 6.8.0-1015.16~22.04.1

  • ubuntu•linux-aws-fips

    < 5.4.0-1132.142+fips1 | all | < 5.15.0-1069.75+fips1

  • ubuntu•linux-azure

    all | < 5.4.0-1137.144 | < 5.15.0-1072.81 | < 6.8.0-1014.16

  • ubuntu•linux-azure-5.11

    all

  • ubuntu•linux-azure-5.13

    all

  • ubuntu•linux-azure-5.15

    < 5.15.0-1072.81~20.04.1

  • ubuntu•linux-azure-5.19

    all

  • ubuntu•linux-azure-5.3

    all

  • ubuntu•linux-azure-5.4

    < 5.4.0-1137.144~18.04.1

  • ubuntu•linux-azure-5.8

    all

  • ubuntu•linux-azure-6.2

    all

  • ubuntu•linux-azure-6.5

    all

  • ubuntu•linux-azure-6.8

    < 6.8.0-1014.16~22.04.1

  • ubuntu•linux-azure-edge

    all

  • ubuntu•linux-azure-fde

    all | < 5.15.0-1072.81.1

  • ubuntu•linux-azure-fde-5.19

    all

  • ubuntu•linux-azure-fde-6.2

    all

  • ubuntu•linux-azure-fips

    < 5.4.0-1137.144+fips1 | all | < 5.15.0-1072.81+fips1

  • ubuntu•linux-bluefield

    all | < 5.4.0-1092.99 | < 5.15.0-1052.54

  • ubuntu•linux-fips

    < 5.4.0-1106.116 | all | < 5.15.0-121.131+fips1 | < 6.8.0-78.78+fips1

  • ubuntu•linux-gcp

    all | < 5.4.0-1136.145 | < 5.15.0-1068.76 | < 6.8.0-1014.16

  • ubuntu•linux-gcp-5.11

    all

  • ubuntu•linux-gcp-5.13

    all

  • ubuntu•linux-gcp-5.15

    < 5.15.0-1068.76~20.04.1

  • ubuntu•linux-gcp-5.19

    all

  • ubuntu•linux-gcp-5.3

    all

  • ubuntu•linux-gcp-5.4

    < 5.4.0-1136.145~18.04.1

  • ubuntu•linux-gcp-5.8

    all

  • ubuntu•linux-gcp-6.2

    all

  • ubuntu•linux-gcp-6.5

    all

  • ubuntu•linux-gcp-6.8

    < 6.8.0-1014.16~22.04.1

  • ubuntu•linux-gcp-fips

    < 5.4.0-1136.145+fips1 | all | < 5.15.0-1068.76+fips1

  • ubuntu•linux-gke

    all | < 5.15.0-1066.72 | < 6.8.0-1010.13

  • ubuntu•linux-gke-4.15

    all

  • ubuntu•linux-gke-5.15

    all

Showing first 50 affected entries in server-rendered view.

References (34)