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CVE-2026-45922

RDMA/mlx5: Fix memory leak in GET_DATA_DIRECT_SYSFS_PATH handler PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected ec7ad6530909983c8736c80af46e3529ce7bab55 before ee998cdbff6680891b0efd9d6ce53a388e5342c3; affected ec7ad6530909983c8736c80af46e3529ce7bab55 before b2bc649c18fbe8a7fd38d17266da3dcbfbcc44d2; affected ec7ad6530909983c8736c80af46e3529ce7bab55 before b3a10eca24fcfe913c0875e620f19596001bd6dc; affected ec7ad6530909983c8736c80af46e3529ce7bab55 before 9b9d253908478f504297ac283c514e5953ddafa6
Linux / Linuxaffected 6.12; unaffected 0 before 6.12; unaffected 6.12.75 through 6.12.*; unaffected 6.18.14 through 6.18.*; unaffected 6.19.4 through 6.19.*; unaffected 7.0 through *

CWE

No CWE identifiers supplied.

References