CVE-2026-80902 (GCVE-0-2026-80902)
Vulnerability from cvelistv5
Published
2026-09-04 17:11
Modified
2026-09-04 17:11
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
dmaengine: sun6i-dma: Fix reclaim descriptors while terminating DMA
When terminating DMA transfers, active descriptors are not properly
reclaimed. Only cyclic descriptors were handled, leaving non-cyclic
descriptors and their LLI chains to be permanently leaked.
Fix by using vchan_terminate_vdesc() which handles both cyclic and
non-cyclic descriptors by adding them to desc_terminated queue for
proper cleanup.
Add pchan->desc != pchan->done check to prevent double-adding completed
descriptors, which would corrupt the list.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 555859308723d8d5b828304f5eb9281143fd86b5 Version: 555859308723d8d5b828304f5eb9281143fd86b5 Version: 555859308723d8d5b828304f5eb9281143fd86b5 Version: 555859308723d8d5b828304f5eb9281143fd86b5 Version: 555859308723d8d5b828304f5eb9281143fd86b5 Version: 555859308723d8d5b828304f5eb9281143fd86b5 Version: 555859308723d8d5b828304f5eb9281143fd86b5 Version: 555859308723d8d5b828304f5eb9281143fd86b5 |
||
{
"containers": {
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"vendor": "Linux",
"versions": [
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"version": "3.17"
},
{
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"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.265",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.216",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.183",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.151",
"versionType": "semver"
},
{
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"status": "unaffected",
"version": "6.12.103",
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},
{
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"version": "6.18.44",
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},
{
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},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
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],
"negate": false,
"operator": "OR"
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]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndmaengine: sun6i-dma: Fix reclaim descriptors while terminating DMA\n\nWhen terminating DMA transfers, active descriptors are not properly\nreclaimed. Only cyclic descriptors were handled, leaving non-cyclic\ndescriptors and their LLI chains to be permanently leaked.\n\nFix by using vchan_terminate_vdesc() which handles both cyclic and\nnon-cyclic descriptors by adding them to desc_terminated queue for\nproper cleanup.\n\nAdd pchan-\u003edesc != pchan-\u003edone check to prevent double-adding completed\ndescriptors, which would corrupt the list."
}
],
"providerMetadata": {
"dateUpdated": "2026-09-04T17:11:17.510Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/bb87440561eb72b47a2b848b5373b86433b247e6"
},
{
"url": "https://git.kernel.org/stable/c/004a7a02982bed0a727a4ac7be400f00f353e7a2"
},
{
"url": "https://git.kernel.org/stable/c/b150f603083cc8b72b0cbf13ec3e91f85b4390a0"
},
{
"url": "https://git.kernel.org/stable/c/27806fe7b9701af0963dcd510e30e7d0cc314c43"
},
{
"url": "https://git.kernel.org/stable/c/1ccc5c059d067c5358682ad5352e7d7e9239ed9b"
},
{
"url": "https://git.kernel.org/stable/c/9086b488f2737d5dcee86852b83f2059f1cdfabf"
},
{
"url": "https://git.kernel.org/stable/c/d4ba6aa65fcd797152d3aebd428a7b2da49cd5eb"
},
{
"url": "https://git.kernel.org/stable/c/ab1150115e68a46b687eb38c1ab92782018c9f2c"
}
],
"title": "dmaengine: sun6i-dma: Fix reclaim descriptors while terminating DMA",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2026-80902",
"datePublished": "2026-09-04T17:11:17.510Z",
"dateReserved": "2026-08-26T14:34:25.800Z",
"dateUpdated": "2026-09-04T17:11:17.510Z",
"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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