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CVE-2026-80902· NVD / CVE Program· CNA Linux

dmaengine: sun6i-dma: Fix reclaim descriptors while terminating DMA

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.

—No exploit Fix available
Published
Sep 4, 2026
Updated
Sep 4, 2026
EPSS
0.2% · 11th percentile
CWE
—
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Action score

0

Monitor

Low priority for now.

CVSS
0 / 40 · —
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

Noroxi analysis

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Affected systems

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Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 3.17affected
    • 555859308723d8d5b828304f5eb9281143fd86b5 and later · before bb87440561eb72b47a2b848b5373b86433b247e6affected · git
    • 555859308723d8d5b828304f5eb9281143fd86b5 and later · before 004a7a02982bed0a727a4ac7be400f00f353e7a2affected · git
    • 555859308723d8d5b828304f5eb9281143fd86b5 and later · before b150f603083cc8b72b0cbf13ec3e91f85b4390a0affected · git
    • 555859308723d8d5b828304f5eb9281143fd86b5 and later · before 27806fe7b9701af0963dcd510e30e7d0cc314c43affected · git
    • 555859308723d8d5b828304f5eb9281143fd86b5 and later · before 1ccc5c059d067c5358682ad5352e7d7e9239ed9baffected · git
    • 555859308723d8d5b828304f5eb9281143fd86b5 and later · before 9086b488f2737d5dcee86852b83f2059f1cdfabfaffected · git
    • 555859308723d8d5b828304f5eb9281143fd86b5 and later · before d4ba6aa65fcd797152d3aebd428a7b2da49cd5ebaffected · git
    • 555859308723d8d5b828304f5eb9281143fd86b5 and later · before ab1150115e68a46b687eb38c1ab92782018c9f2caffected · git
    • before 3.17not affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.187-16.1.187-1
Debian:12linux-6.12before 6.12.107-1~deb12u16.12.107-1~deb12u1
Debian:13linuxbefore 6.12.105-16.12.105-1
Debian:14linuxbefore 7.1.8-17.1.8-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-74705udp: fix potential use-after-free in tunnel segmentation
    40Plan
  • CVE-2026-74612veth: fix skb length accounting after XDP frag adjustment
    40Plan
  • CVE-2026-74475vxlan: use neigh_ha_snapshot() in route_shortcircuit()
    40Plan
  • CVE-2026-74309vdpa/octeon_ep: fix IRQ-to-ring mapping in interrupt handler
    40Plan
  • CVE-2026-74280crypto: marvell/octeontx - fix DMA cleanup using wrong loop index
    40Plan
  • CVE-2026-74279crypto: cavium/cpt - fix DMA cleanup using wrong loop index
    40Plan

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux004a7a02982bed0a727a4ac7be400f00f353e7a2Vendor (CNA)
Linux Linux1ccc5c059d067c5358682ad5352e7d7e9239ed9bVendor (CNA)
Linux Linux27806fe7b9701af0963dcd510e30e7d0cc314c43Vendor (CNA)
Linux Linux9086b488f2737d5dcee86852b83f2059f1cdfabfVendor (CNA)
Linux Linuxab1150115e68a46b687eb38c1ab92782018c9f2cVendor (CNA)
Linux Linuxb150f603083cc8b72b0cbf13ec3e91f85b4390a0Vendor (CNA)
Linux Linuxbb87440561eb72b47a2b848b5373b86433b247e6Vendor (CNA)
Linux Linuxd4ba6aa65fcd797152d3aebd428a7b2da49cd5ebVendor (CNA)
azl3 kernel 6.6.150.1-1 on Azure Linux 3.06.6.152.1-1 · Release NotesMicrosoft (MSRC)
debian:linux6.1.187-1 · Debian:12Package registry (OSV)
debian:linux-6.126.12.107-1~deb12u1 · Debian:12Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

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Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

No CVSS vector for this record, so attack conditions can't be derived.

Weakness class (CWE)

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Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records