Description

In the Linux kernel, the following vulnerability has been resolved: misc: fastrpc: fix possible map leak in fastrpc_put_args copy_to_user() failure would cause an early return without cleaning up the fdlist, which has been updated by the DSP. This could lead to map leak. Fix this by redirecting to a cleanup path on failure, ensuring that all mapped buffers are properly released before returning.

References 5

• git.kernel.org https://git.kernel.org/stable/c/3ad42dc66445df6977cf4be0c06f1a655299ce6c
• git.kernel.org https://git.kernel.org/stable/c/78d33a041555db03903e8037fd053ed74fbd88cb
• git.kernel.org https://git.kernel.org/stable/c/a085658264d0c8d4f795d4631f77d7289a021de9
• git.kernel.org https://git.kernel.org/stable/c/c000f65f0ac93d9f9cc69a230d372f6ca93e4879
• git.kernel.org https://git.kernel.org/stable/c/da1ba64176e0138f2bfa96f9e43e8c3640d01e1e

Remediation