CVE-2023-53353

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> accel/habanalabs: postpone mem_mgr IDR destruction to hpriv_release()<br /> <br /> The memory manager IDR is currently destroyed when user releases the<br /> file descriptor.<br /> However, at this point the user context might be still held, and memory<br /> buffers might be still in use.<br /> Later on, calls to release those buffers will fail due to not finding<br /> their handles in the IDR, leading to a memory leak.<br /> To avoid this leak, split the IDR destruction from the memory manager<br /> fini, and postpone it to hpriv_release() when there is no user context<br /> and no buffers are used.