CVE-2026-45922
published 2026-05-27CVE-2026-45922: In the Linux kernel, the following vulnerability has been resolved: RDMA/mlx5: Fix memory leak in GET_DATA_DIRECT_SYSFS_PATH handler The…
medium5.5
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
6 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| linux | linux | — | — |
| linux | linux | >= ec7ad6530909983c8736c80af46e3529ce7bab55 < ee998cdbff6680891b0efd9d6ce53a388e5342c3 | ee998cdbff6680891b0efd9d6ce53a388e5342c3 |
| linux | linux | >= ec7ad6530909983c8736c80af46e3529ce7bab55 < b2bc649c18fbe8a7fd38d17266da3dcbfbcc44d2 | b2bc649c18fbe8a7fd38d17266da3dcbfbcc44d2 |
| linux | linux | >= ec7ad6530909983c8736c80af46e3529ce7bab55 < b3a10eca24fcfe913c0875e620f19596001bd6dc | b3a10eca24fcfe913c0875e620f19596001bd6dc |
| linux | linux | >= ec7ad6530909983c8736c80af46e3529ce7bab55 < 9b9d253908478f504297ac283c514e5953ddafa6 | 9b9d253908478f504297ac283c514e5953ddafa6 |
| linux | linux_kernel | — | — |