CVE-2025-68252

In the Linux kernel, the following vulnerability has been resolved:

misc: fastrpc: Fix dma_buf object leak in fastrpc_map_lookup

In fastrpc_map_lookup, dma_buf_get is called to obtain a reference to
the dma_buf for comparison purposes. However, this reference is never
released when the function returns, leading to a dma_buf memory leak.

Fix this by adding dma_buf_put before returning from the function,
ensuring that the temporarily acquired reference is properly released
regardless of whether a matching map is found.

Rule: add

More information : https://git.kernel.org/stable/c/214e81a63a9aa0be42382ef0365ba5ed32c513ab