CVE-2026-80902 is a vulnerability in Linux Kernel
Published on September 4, 2026
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.
Products Associated with CVE-2026-80902
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Affected Versions
Linux:- Version 555859308723d8d5b828304f5eb9281143fd86b5 and below bb87440561eb72b47a2b848b5373b86433b247e6 is affected.
- Version 555859308723d8d5b828304f5eb9281143fd86b5 and below 004a7a02982bed0a727a4ac7be400f00f353e7a2 is affected.
- Version 555859308723d8d5b828304f5eb9281143fd86b5 and below b150f603083cc8b72b0cbf13ec3e91f85b4390a0 is affected.
- Version 555859308723d8d5b828304f5eb9281143fd86b5 and below 27806fe7b9701af0963dcd510e30e7d0cc314c43 is affected.
- Version 555859308723d8d5b828304f5eb9281143fd86b5 and below 1ccc5c059d067c5358682ad5352e7d7e9239ed9b is affected.
- Version 555859308723d8d5b828304f5eb9281143fd86b5 and below 9086b488f2737d5dcee86852b83f2059f1cdfabf is affected.
- Version 555859308723d8d5b828304f5eb9281143fd86b5 and below d4ba6aa65fcd797152d3aebd428a7b2da49cd5eb is affected.
- Version 555859308723d8d5b828304f5eb9281143fd86b5 and below ab1150115e68a46b687eb38c1ab92782018c9f2c is affected.
- Version 3.17 is affected.
- Before 3.17 is unaffected.
- Version 5.10.265, <= 5.10.* is unaffected.
- Version 5.15.216, <= 5.15.* is unaffected.
- Version 6.1.183, <= 6.1.* is unaffected.
- Version 6.6.151, <= 6.6.* is unaffected.
- Version 6.12.103, <= 6.12.* is unaffected.
- Version 6.18.44, <= 6.18.* is unaffected.
- Version 7.1.8, <= 7.1.* is unaffected.
- Version 7.2, <= * is unaffected.