CVE-2026-31775 (GCVE-0-2026-31775)
Vulnerability from cvelistv5
Published
2026-05-01 14:15
Modified
2026-10-26 15:12
Severity ?
VLAI Severity ?
EPSS score ?
Summary
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.
References
Impacted products
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"sound/pci/ctxfi/ctatc.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
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"version": "88cc09bb70651917ef8b7095a05a21a9ca014c94",
"versionType": "git"
},
{
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"version": "a2dbaeb5c61ef110ceefe0d48fe94d428d3bcf16",
"versionType": "git"
},
{
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"version": "a2dbaeb5c61ef110ceefe0d48fe94d428d3bcf16",
"versionType": "git"
},
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"status": "affected",
"version": "6.18.57",
"versionType": "semver"
}
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},
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"programFiles": [
"sound/pci/ctxfi/ctatc.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "6.19"
},
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"version": "0",
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{
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},
{
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"status": "unaffected",
"version": "6.19.12",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.0",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
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"vulnerable": true
}
],
"negate": false,
"operator": "OR"
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}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: ctxfi: Don\u0027t enumerate SPDIF1 at DAIO initialization\n\nThe recent refactoring of xfi driver changed the assignment of\natc-\u003edaios[] 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."
}
],
"providerMetadata": {
"dateUpdated": "2026-10-26T15:12:57.000Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/7fca3600e79e9f8bac1ebc10af9ff20a35d6cccb"
},
{
"url": "https://git.kernel.org/stable/c/a79c4c42057818bd9de45d2627464b4f0e02196a"
},
{
"url": "https://git.kernel.org/stable/c/75dc1980cf48826287e43dc7a49e310c6691f97e"
}
],
"title": "ALSA: ctxfi: Don\u0027t enumerate SPDIF1 at DAIO initialization",
"x_generator": {
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}
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"cveMetadata": {
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"assignerShortName": "Linux",
"cveId": "CVE-2026-31775",
"datePublished": "2026-05-01T14:15:03.664Z",
"dateReserved": "2026-03-09T15:48:24.140Z",
"dateUpdated": "2026-10-26T15:12:57.000Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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