CVE-2021-47655 Information

Description

In the Linux kernel the following vulnerability has been resolved:

media: venus: vdec: fixed possible memory leak issue

The venus_helper_alloc_dpb_bufs() implementation allows an early return on an error path when checking the id from ida_alloc_min() which would not release the earlier buffer allocation.

Move the direct kfree() from the error checking of dma_alloc_attrs() to the common fail path to ensure that allocations are released on all error paths in this function.

Addresses-Coverity: 1494120 (\Resource leak)

Reference

https://git.kernel.org/stable/c/55bccafc246b2e64763a155ec454470c07a54a6e https://git.kernel.org/stable/c/5cedfe8aaf1875a5305897107b7f298db4260019 https://git.kernel.org/stable/c/5f89d05ba93df9c2cdfe493843f93288e55e99eb https://git.kernel.org/stable/c/8403fdd775858a7bf04868d43daea0acbe49ddfc