CVE-2024-41037

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

ASoC: SOF: Intel: hda: fix null deref on system suspend entry

When system enters suspend with an active stream, SOF core calls hwparamsupon_resume(). On Intel platforms with HDA DMA used to manage the link DMA, this leads to call chain of

hdadspsethwparamsuponresume() -> hdadspdaissuspend() -> hdadaisuspend() -> hdaipc4posttrigger()

A bug is hit in hdadaisuspend() as hdalinkdmacleanup() is run first, which clears hextstream->linksubstream, and then hdaipc4posttrigger() is called with a NULL sndpcmsubstream pointer.