CVE-2026-90405 (GCVE-0-2026-90405)
Vulnerability from cvelistv5
Published
2026-09-17 16:09
Modified
2026-10-19 09:03
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
media: stm32: dcmi: fix some error handling bugs in probe()
There are a few issues here:
1) After we assign:
chan = dma_request_chan(&pdev->dev, "tx");
Then the error paths need to clean up before returning. The first
error path does a direct return.
2) The error paths check "dcmi->mdma_chan" but that is not assigned
until later so it results in memory leaks. Test "mdma_chan"
instead.
3) The error handling calls dma_release_channel(dcmi->dma_chan) before
"dcmi->dma_chan" has been assigned which leads to a NULL pointer
dereference. Use the "chan" variable instead.
I also moved the call to dma_release_channel() after the call to
dma_release_channel() so it mirrors the allocation code better.
References
Impacted products
{
"containers": {
"cna": {
"affected": [
{
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"product": "Linux",
"programFiles": [
"drivers/media/platform/st/stm32/stm32-dcmi.c"
],
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"vendor": "Linux",
"versions": [
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"versionType": "git"
},
{
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"versionType": "git"
}
]
},
{
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],
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"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "7.1"
},
{
"lessThan": "7.1",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.2.*",
"status": "unaffected",
"version": "7.2.6",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
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"nodes": [
{
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "7.2.6",
"versionStartIncluding": "7.1",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "7.3",
"versionStartIncluding": "7.1",
"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\nmedia: stm32: dcmi: fix some error handling bugs in probe()\n\nThere are a few issues here:\n\n1) After we assign:\n chan = dma_request_chan(\u0026pdev-\u003edev, \"tx\");\n Then the error paths need to clean up before returning. The first\n error path does a direct return.\n2) The error paths check \"dcmi-\u003emdma_chan\" but that is not assigned\n until later so it results in memory leaks. Test \"mdma_chan\"\n instead.\n3) The error handling calls dma_release_channel(dcmi-\u003edma_chan) before\n \"dcmi-\u003edma_chan\" has been assigned which leads to a NULL pointer\n dereference. Use the \"chan\" variable instead.\n\nI also moved the call to dma_release_channel() after the call to\ndma_release_channel() so it mirrors the allocation code better."
}
],
"providerMetadata": {
"dateUpdated": "2026-10-19T09:03:09.783Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/4d030d7d1af95d24d3eb6e536a4f09b7bf9a8659"
},
{
"url": "https://git.kernel.org/stable/c/f1d1ed39ced825615aeac61f0b6a322178756632"
}
],
"title": "media: stm32: dcmi: fix some error handling bugs in probe()",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2026-90405",
"datePublished": "2026-09-17T16:09:34.122Z",
"dateReserved": "2026-09-11T19:38:34.812Z",
"dateUpdated": "2026-10-19T09:03:09.783Z",
"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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