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CVE-2026-80902

Unknown

Last modified

CVE-2026-80902 is a vulnerability of currently unknown severity. 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..

Description

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.

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 555859308723d8d5b828304f5eb9281143fd86b5, < bb87440561eb72b47a2b848b5373b86433b247e6; >= 555859308723d8d5b828304f5eb9281143fd86b5, < 004a7a02982bed0a727a4ac7be400f00f353e7a2; >= 555859308723d8d5b828304f5eb9281143fd86b5, < b150f603083cc8b72b0cbf13ec3e91f85b4390a0; >= 555859308723d8d5b828304f5eb9281143fd86b5, < 27806fe7b9701af0963dcd510e30e7d0cc314c43; >= 555859308723d8d5b828304f5eb9281143fd86b5, < 1ccc5c059d067c5358682ad5352e7d7e9239ed9b; >= 555859308723d8d5b828304f5eb9281143fd86b5, < 9086b488f2737d5dcee86852b83f2059f1cdfabf; >= 555859308723d8d5b828304f5eb9281143fd86b5, < d4ba6aa65fcd797152d3aebd428a7b2da49cd5eb; >= 555859308723d8d5b828304f5eb9281143fd86b5, < ab1150115e68a46b687eb38c1ab92782018c9f2c
LinuxLinux3.17

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is 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.
How severe is CVE-2026-80902?
Severity scoring for CVE-2026-80902 is pending analysis.
How do I fix CVE-2026-80902?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST