CVE-2026-43058 (GCVE-0-2026-43058)
Vulnerability from cvelistv5 – Published: 2026-05-02 06:11 – Updated: 2026-05-02 06:11
VLAI?
Title
media: vidtv: fix pass-by-value structs causing MSAN warnings
Summary
In the Linux kernel, the following vulnerability has been resolved:
media: vidtv: fix pass-by-value structs causing MSAN warnings
vidtv_ts_null_write_into() and vidtv_ts_pcr_write_into() take their
argument structs by value, causing MSAN to report uninit-value warnings.
While only vidtv_ts_null_write_into() has triggered a report so far,
both functions share the same issue.
Fix by passing both structs by const pointer instead, avoiding the
stack copy of the struct along with its MSAN shadow and origin metadata.
The functions do not modify the structs, which is enforced by the const
qualifier.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Linux | Linux |
Affected:
f90cf6079bf67988f8b1ad1ade70fc89d0080905 , < e3957eb26a3d570aefc6bb184fa8b8a1e9a4e508
(git)
Affected: f90cf6079bf67988f8b1ad1ade70fc89d0080905 , < be57e52e27c7cbfb400a8f255e475cbcff242baa (git) Affected: f90cf6079bf67988f8b1ad1ade70fc89d0080905 , < 6d75a9ec5bdb8cf8382eaf8f8fe831ba7d58a9d4 (git) Affected: f90cf6079bf67988f8b1ad1ade70fc89d0080905 , < 57b01d945ed68cebe486d495dadc4901a96d3aaa (git) Affected: f90cf6079bf67988f8b1ad1ade70fc89d0080905 , < 1b2820c8a9887981634020db19f1a2425558b88e (git) Affected: f90cf6079bf67988f8b1ad1ade70fc89d0080905 , < 5f8e73bde67e931468bc2a1860d78d72f0c6ba41 (git) |
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{
"containers": {
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"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/media/test-drivers/vidtv/vidtv_mux.c",
"drivers/media/test-drivers/vidtv/vidtv_ts.c",
"drivers/media/test-drivers/vidtv/vidtv_ts.h"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
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"status": "affected",
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"versionType": "git"
}
]
},
{
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"product": "Linux",
"programFiles": [
"drivers/media/test-drivers/vidtv/vidtv_mux.c",
"drivers/media/test-drivers/vidtv/vidtv_ts.c",
"drivers/media/test-drivers/vidtv/vidtv_ts.h"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
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"version": "5.10"
},
{
"lessThan": "5.10",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.136",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.83",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.24",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.19.*",
"status": "unaffected",
"version": "6.19.14",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.0.*",
"status": "unaffected",
"version": "7.0.1",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.1-rc1",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
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"vulnerable": true
},
{
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},
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},
{
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{
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{
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"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: vidtv: fix pass-by-value structs causing MSAN warnings\n\nvidtv_ts_null_write_into() and vidtv_ts_pcr_write_into() take their\nargument structs by value, causing MSAN to report uninit-value warnings.\nWhile only vidtv_ts_null_write_into() has triggered a report so far,\nboth functions share the same issue.\n\nFix by passing both structs by const pointer instead, avoiding the\nstack copy of the struct along with its MSAN shadow and origin metadata.\nThe functions do not modify the structs, which is enforced by the const\nqualifier."
}
],
"providerMetadata": {
"dateUpdated": "2026-05-02T06:11:50.870Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/e3957eb26a3d570aefc6bb184fa8b8a1e9a4e508"
},
{
"url": "https://git.kernel.org/stable/c/be57e52e27c7cbfb400a8f255e475cbcff242baa"
},
{
"url": "https://git.kernel.org/stable/c/6d75a9ec5bdb8cf8382eaf8f8fe831ba7d58a9d4"
},
{
"url": "https://git.kernel.org/stable/c/57b01d945ed68cebe486d495dadc4901a96d3aaa"
},
{
"url": "https://git.kernel.org/stable/c/1b2820c8a9887981634020db19f1a2425558b88e"
},
{
"url": "https://git.kernel.org/stable/c/5f8e73bde67e931468bc2a1860d78d72f0c6ba41"
}
],
"title": "media: vidtv: fix pass-by-value structs causing MSAN warnings",
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"cveMetadata": {
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"assignerShortName": "Linux",
"cveId": "CVE-2026-43058",
"datePublished": "2026-05-02T06:11:50.870Z",
"dateReserved": "2026-05-01T14:12:55.981Z",
"dateUpdated": "2026-05-02T06:11:50.870Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
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"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-43058",
"date": "2026-05-04",
"epss": "0.00024",
"percentile": "0.06795"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2026-43058\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-05-02T07:16:20.830\",\"lastModified\":\"2026-05-02T07:16:20.830\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nmedia: vidtv: fix pass-by-value structs causing MSAN warnings\\n\\nvidtv_ts_null_write_into() and vidtv_ts_pcr_write_into() take their\\nargument structs by value, causing MSAN to report uninit-value warnings.\\nWhile only vidtv_ts_null_write_into() has triggered a report so far,\\nboth functions share the same issue.\\n\\nFix by passing both structs by const pointer instead, avoiding the\\nstack copy of the struct along with its MSAN shadow and origin metadata.\\nThe functions do not modify the structs, which is enforced by the const\\nqualifier.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/1b2820c8a9887981634020db19f1a2425558b88e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/57b01d945ed68cebe486d495dadc4901a96d3aaa\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/5f8e73bde67e931468bc2a1860d78d72f0c6ba41\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/6d75a9ec5bdb8cf8382eaf8f8fe831ba7d58a9d4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/be57e52e27c7cbfb400a8f255e475cbcff242baa\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/e3957eb26a3d570aefc6bb184fa8b8a1e9a4e508\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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