CVE-2026-43189 (GCVE-0-2026-43189)
Vulnerability from cvelistv5 – Published: 2026-05-06 11:27 – Updated: 2026-05-07 17:14
VLAI?
Title
media: v4l2-async: Fix error handling on steps after finding a match
Summary
In the Linux kernel, the following vulnerability has been resolved:
media: v4l2-async: Fix error handling on steps after finding a match
Once an async connection is found to be matching with an fwnode, a
sub-device may be registered (in case it wasn't already), its bound
operation is called, ancillary links are created, the async connection
is added to the sub-device's list of connections and removed from the
global waiting connection list. Further on, the sub-device's possible own
notifier is searched for possible additional matches.
Fix these specific issues:
- If v4l2_async_match_notify() failed before the sub-notifier handling,
the async connection was unbound and its entry removed from the
sub-device's async connection list. The latter part was also done in
v4l2_async_match_notify().
- The async connection's sd field was only set after creating ancillary
links in v4l2_async_match_notify(). It was however dereferenced in
v4l2_async_unbind_subdev_one(), which was called on error path of
v4l2_async_match_notify() failure.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Affected:
28a1295795d85a25f2e7dd391c43969e95fcb341 , < 30aaed311f973f13ba13a0cd2dc0202f595fff48
(git)
Affected: 28a1295795d85a25f2e7dd391c43969e95fcb341 , < 461733d83e67ba7e3a5b750c0d203f738e01244f (git) Affected: 28a1295795d85a25f2e7dd391c43969e95fcb341 , < b02bcb378efa8af07827f49b3afcc5e825318c55 (git) Affected: 28a1295795d85a25f2e7dd391c43969e95fcb341 , < 2de0a3c8148fc3dbea21981e6569f550b3626119 (git) Affected: 28a1295795d85a25f2e7dd391c43969e95fcb341 , < 7345d6d356336c448d6b9230ed8704f39679fd12 (git) |
||
{
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"programFiles": [
"drivers/media/v4l2-core/v4l2-async.c"
],
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"programFiles": [
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],
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"vendor": "Linux",
"versions": [
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"status": "affected",
"version": "6.6"
},
{
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"status": "unaffected",
"version": "0",
"versionType": "semver"
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{
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"status": "unaffected",
"version": "6.6.128",
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{
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"status": "unaffected",
"version": "6.12.75",
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{
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"version": "6.18.16",
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{
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"version": "6.19.6",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.0",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
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"cpeMatch": [
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"descriptions": [
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"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: v4l2-async: Fix error handling on steps after finding a match\n\nOnce an async connection is found to be matching with an fwnode, a\nsub-device may be registered (in case it wasn\u0027t already), its bound\noperation is called, ancillary links are created, the async connection\nis added to the sub-device\u0027s list of connections and removed from the\nglobal waiting connection list. Further on, the sub-device\u0027s possible own\nnotifier is searched for possible additional matches.\n\nFix these specific issues:\n\n- If v4l2_async_match_notify() failed before the sub-notifier handling,\n the async connection was unbound and its entry removed from the\n sub-device\u0027s async connection list. The latter part was also done in\n v4l2_async_match_notify().\n\n- The async connection\u0027s sd field was only set after creating ancillary\n links in v4l2_async_match_notify(). It was however dereferenced in\n v4l2_async_unbind_subdev_one(), which was called on error path of\n v4l2_async_match_notify() failure."
}
],
"providerMetadata": {
"dateUpdated": "2026-05-07T17:14:35.685Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/30aaed311f973f13ba13a0cd2dc0202f595fff48"
},
{
"url": "https://git.kernel.org/stable/c/461733d83e67ba7e3a5b750c0d203f738e01244f"
},
{
"url": "https://git.kernel.org/stable/c/b02bcb378efa8af07827f49b3afcc5e825318c55"
},
{
"url": "https://git.kernel.org/stable/c/2de0a3c8148fc3dbea21981e6569f550b3626119"
},
{
"url": "https://git.kernel.org/stable/c/7345d6d356336c448d6b9230ed8704f39679fd12"
}
],
"title": "media: v4l2-async: Fix error handling on steps after finding a match",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
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"assignerShortName": "Linux",
"cveId": "CVE-2026-43189",
"datePublished": "2026-05-06T11:27:59.108Z",
"dateReserved": "2026-05-01T14:12:55.992Z",
"dateUpdated": "2026-05-07T17:14:35.685Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-43189",
"date": "2026-05-10",
"epss": "0.00018",
"percentile": "0.04933"
},
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}
}
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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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