CVE-2026-98092: ASoC: amd: yc: fix memory leak in acp6x_pdm_dma_close()
In the Linux kernel, the following vulnerability has been resolved:
ASoC: amd: yc: fix memory leak in acp6xpdmdmaclose()
acp6xpdmdmaclose() does not free the runtime->privatedata buffer allocated in acp6xpdmdmaopen(). Add the missing kfree.
Affected Software
Event History
Frequently Asked Questions
What systems are exposed to this issue?
Systems running the Linux kernel with the AMD ACP6x PDM audio driver are exposed when the affected open and close paths are exercised. The issue concerns memory allocated by acp6x_pdm_dma_open() that was not released by acp6x_pdm_dma_close().
What is the practical impact if the issue is triggered repeatedly?
Repeated use of the affected audio DMA open and close paths can leak runtime private-data memory. The provided information identifies this as a memory leak; it does not specify a privilege-escalation, code-execution, or remote exploitation impact.
How can I determine whether the fix is present?
Check whether your kernel includes the upstream stable commit 8069bc3798dd33e8e7e9ad21370ee32dcd69957c, ecd88ef5f1d208596592cfa6695ab9e240ac6a72, or ac961c34cf39f66296caf8294fa5baaee4124266. The fix adds the missing kfree for runtime->private_data in acp6x_pdm_dma_close().