Riskcovery

CVE-2026-45922

RDMA/mlx5: Fix memory leak in GET_DATA_DIRECT_SYSFS_PATH handler

State
Published
Severity
Not scored
Published
May 27, 2026
Updated
May 27, 2026
Reserved
May 13, 2026

Read the record on cve.org

Description

In 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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • ec7ad6530909983c8736c80af46e3529ce7bab55 to before ee998cdbff6680891b0efd9d6ce53a388e5342c3Affected
  • ec7ad6530909983c8736c80af46e3529ce7bab55 to before b2bc649c18fbe8a7fd38d17266da3dcbfbcc44d2Affected
  • ec7ad6530909983c8736c80af46e3529ce7bab55 to before b3a10eca24fcfe913c0875e620f19596001bd6dcAffected
  • ec7ad6530909983c8736c80af46e3529ce7bab55 to before 9b9d253908478f504297ac283c514e5953ddafa6Affected
LinuxLinux
  • 6.12Affected
  • before 6.12Not affected
  • 6.12.75 through 6.12.*Not affected
  • 6.18.14 through 6.18.*Not affected
  • 6.19.4 through 6.19.*Not affected
  • 7.0 and laterNot affected

References

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