CVE-2026-80902

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.

CVSS

No CVSS.

References

Link	Resource
https://git.kernel.org/stable/c/004a7a02982bed0a727a4ac7be400f00f353e7a2
https://git.kernel.org/stable/c/1ccc5c059d067c5358682ad5352e7d7e9239ed9b
https://git.kernel.org/stable/c/27806fe7b9701af0963dcd510e30e7d0cc314c43
https://git.kernel.org/stable/c/9086b488f2737d5dcee86852b83f2059f1cdfabf
https://git.kernel.org/stable/c/ab1150115e68a46b687eb38c1ab92782018c9f2c
https://git.kernel.org/stable/c/b150f603083cc8b72b0cbf13ec3e91f85b4390a0
https://git.kernel.org/stable/c/bb87440561eb72b47a2b848b5373b86433b247e6
https://git.kernel.org/stable/c/d4ba6aa65fcd797152d3aebd428a7b2da49cd5eb

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-04 18:17

Updated : 2026-09-04 18:17

NVD link : CVE-2026-80902

Mitre link : CVE-2026-80902

CVE.ORG link : CVE-2026-80902

JSON object : View

Products Affected

No product.

CWE

No CWE.

{"id": "CVE-2026-80902", "cveTags": [], "metrics": {}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "555859308723d8d5b828304f5eb9281143fd86b5", "lessThan": "bb87440561eb72b47a2b848b5373b86433b247e6", "versionType": "git"}, {"status": "affected", "version": "555859308723d8d5b828304f5eb9281143fd86b5", "lessThan": "004a7a02982bed0a727a4ac7be400f00f353e7a2", "versionType": "git"}, {"status": "affected", "version": "555859308723d8d5b828304f5eb9281143fd86b5", "lessThan": "b150f603083cc8b72b0cbf13ec3e91f85b4390a0", "versionType": "git"}, {"status": "affected", "version": "555859308723d8d5b828304f5eb9281143fd86b5", "lessThan": "27806fe7b9701af0963dcd510e30e7d0cc314c43", "versionType": "git"}, {"status": "affected", "version": "555859308723d8d5b828304f5eb9281143fd86b5", "lessThan": "1ccc5c059d067c5358682ad5352e7d7e9239ed9b", "versionType": "git"}, {"status": "affected", "version": "555859308723d8d5b828304f5eb9281143fd86b5", "lessThan": "9086b488f2737d5dcee86852b83f2059f1cdfabf", "versionType": "git"}, {"status": "affected", "version": "555859308723d8d5b828304f5eb9281143fd86b5", "lessThan": "d4ba6aa65fcd797152d3aebd428a7b2da49cd5eb", "versionType": "git"}, {"status": "affected", "version": "555859308723d8d5b828304f5eb9281143fd86b5", "lessThan": "ab1150115e68a46b687eb38c1ab92782018c9f2c", "versionType": "git"}], "programFiles": ["drivers/dma/sun6i-dma.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "3.17"}, {"status": "unaffected", "version": "0", "lessThan": "3.17", "versionType": "semver"}, {"status": "unaffected", "version": "5.10.265", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.216", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.183", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.151", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.103", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.44", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "7.1.8", "versionType": "semver", "lessThanOrEqual": "7.1.*"}, {"status": "unaffected", "version": "7.2", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/dma/sun6i-dma.c"], "defaultStatus": "affected"}]}], "published": "2026-09-04T18:17:59.260", "references": [{"url": "https://git.kernel.org/stable/c/004a7a02982bed0a727a4ac7be400f00f353e7a2", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/1ccc5c059d067c5358682ad5352e7d7e9239ed9b", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/27806fe7b9701af0963dcd510e30e7d0cc314c43", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/9086b488f2737d5dcee86852b83f2059f1cdfabf", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/ab1150115e68a46b687eb38c1ab92782018c9f2c", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/b150f603083cc8b72b0cbf13ec3e91f85b4390a0", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/bb87440561eb72b47a2b848b5373b86433b247e6", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/d4ba6aa65fcd797152d3aebd428a7b2da49cd5eb", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Received", "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->desc != pchan->done check to prevent double-adding completed\ndescriptors, which would corrupt the list."}], "lastModified": "2026-09-04T18:17:59.260", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}