Overview
About vulnerability
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. A flaw was found in the Linux kernel, specifically within the RDMA/mlx5 component. When the GET_DATA_DIRECT_SYSFS_PATH handler processes a device path, it allocates memory. If the device path’s length exceeds the designated output buffer, the allocated memory is not properly released. This oversight results in a memory leak, which can lead to resource exhaustion and potentially impact system stability.Details
KernelCare state
Live-patch status from KernelCare for each operating system.
| Operating system | Status | Covered kernels |
|---|---|---|
| Debian 13 | Planned | — |