RDMA/mlx5: Fix memory leak in GET_DATA_DIRECT_SYSFS_PATH handler

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-45922
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-27 14:17:07 UTC
Updated2026-06-24 17:21:55 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: RDMA/mlx5: Fix memory leak in GET_DATA_DIRECT_SYSFS_PATH handler The UVERBS_HANDLER(MLX5_IB_METHOD_GET_DATA_DIRECT_SYSFS_PATH) function allocates memory for the device path using kobject_get_path(). If the length of the device path exceeds the output buffer length, the function returns -ENOSPC but does not free the allocated memory, resulting in a memory leak. Add a kfree() call to the error path to ensure the allocated memory is properly freed. Compile tested only. Issue found using a prototype static analysis tool and code review.

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.000180000 probability, percentile 0.048460000 (date 2026-06-01)

Problem Types: CWE-401

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected ec7ad6530909983c8736c80af46e3529ce7bab55 ee998cdbff6680891b0efd9d6ce53a388e5342c3 git Not specified
CNA Linux Linux affected ec7ad6530909983c8736c80af46e3529ce7bab55 b2bc649c18fbe8a7fd38d17266da3dcbfbcc44d2 git Not specified
CNA Linux Linux affected ec7ad6530909983c8736c80af46e3529ce7bab55 b3a10eca24fcfe913c0875e620f19596001bd6dc git Not specified
CNA Linux Linux affected ec7ad6530909983c8736c80af46e3529ce7bab55 9b9d253908478f504297ac283c514e5953ddafa6 git Not specified
CNA Linux Linux affected 6.12 Not specified
CNA Linux Linux unaffected 6.12 semver Not specified
CNA Linux Linux unaffected 6.12.75 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.14 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19.4 6.19.* semver Not specified
CNA Linux Linux unaffected 7.0 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/b2bc649c18fbe8a7fd38d17266da3dcbfbcc44d2 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/9b9d253908478f504297ac283c514e5953ddafa6 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/ee998cdbff6680891b0efd9d6ce53a388e5342c3 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/b3a10eca24fcfe913c0875e620f19596001bd6dc 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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