CVE-2026-31775

Full vulnerability record from the local CVENow database.

Description

In the Linux kernel, the following vulnerability has been resolved: ALSA: ctxfi: Don't enumerate SPDIF1 at DAIO initialization The recent refactoring of xfi driver changed the assignment of atc->daios[] at atc_get_resources(); now it loops over all enum DAIOTYP entries while it looped formerly only a part of them. The problem is that the last entry, SPDIF1, is a special type that is used only for hw20k1 CTSB073X model (as a replacement of SPDIFIO), and there is no corresponding definition for hw20k2. Due to the lack of the info, it caused a kernel crash on hw20k2, which was already worked around by the commit b045ab3dff97 ("ALSA: ctxfi: Fix missing SPDIFI1 index handling"). This patch addresses the root cause of the regression above properly, simply by skipping the incorrect SPDIF1 type in the parser loop. For making the change clearer, the code is slightly arranged, too.

Severity

MEDIUM

CVSS score

5.5 (v3.1)

Vulnerability status

Modified

Source identifier

416baaa9-dc9f-4396-8d5f-8c081fb06d67

Published

2026-05-01 15:16:40.863000

Last modified

2026-10-26 16:17:20.720000

View original CVE JSON

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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2026-05-01T15:16:40.863",
  "lastModified": "2026-10-26T16:17:20.720",
  "vulnStatus": "Modified",
  "cveTags": [],
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      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: ctxfi: Don't enumerate SPDIF1 at DAIO initialization\n\nThe recent refactoring of xfi driver changed the assignment of\natc->daios[] at atc_get_resources(); now it loops over all enum\nDAIOTYP entries while it looped formerly only a part of them.\nThe problem is that the last entry, SPDIF1, is a special type that\nis used only for hw20k1 CTSB073X model (as a replacement of SPDIFIO),\nand there is no corresponding definition for hw20k2.  Due to the lack\nof the info, it caused a kernel crash on hw20k2, which was already\nworked around by the commit b045ab3dff97 (\"ALSA: ctxfi: Fix missing\nSPDIFI1 index handling\").\n\nThis patch addresses the root cause of the regression above properly,\nsimply by skipping the incorrect SPDIF1 type in the parser loop.\n\nFor making the change clearer, the code is slightly arranged, too."
    }
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          "scope": "UNCHANGED",
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