CVE-2026-31775

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> ALSA: ctxfi: Don&amp;#39;t enumerate SPDIF1 at DAIO initialization<br /> <br /> The recent refactoring of xfi driver changed the assignment of<br /> atc-&gt;daios[] at atc_get_resources(); now it loops over all enum<br /> DAIOTYP entries while it looped formerly only a part of them.<br /> The problem is that the last entry, SPDIF1, is a special type that<br /> is used only for hw20k1 CTSB073X model (as a replacement of SPDIFIO),<br /> and there is no corresponding definition for hw20k2. Due to the lack<br /> of the info, it caused a kernel crash on hw20k2, which was already<br /> worked around by the commit b045ab3dff97 ("ALSA: ctxfi: Fix missing<br /> SPDIFI1 index handling").<br /> <br /> This patch addresses the root cause of the regression above properly,<br /> simply by skipping the incorrect SPDIF1 type in the parser loop.<br /> <br /> For making the change clearer, the code is slightly arranged, too.