{"id":"CVE-2026-80902","state":"PUBLISHED","title":"dmaengine: sun6i-dma: Fix reclaim descriptors while terminating DMA","description":"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.","publishedAt":"2026-09-04T17:11:17.510Z","updatedAt":"2026-09-04T17:11:17.510Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"555859308723d8d5b828304f5eb9281143fd86b5","status":"affected","lessThan":"bb87440561eb72b47a2b848b5373b86433b247e6","versionType":"git"},{"version":"555859308723d8d5b828304f5eb9281143fd86b5","status":"affected","lessThan":"004a7a02982bed0a727a4ac7be400f00f353e7a2","versionType":"git"},{"version":"555859308723d8d5b828304f5eb9281143fd86b5","status":"affected","lessThan":"b150f603083cc8b72b0cbf13ec3e91f85b4390a0","versionType":"git"},{"version":"555859308723d8d5b828304f5eb9281143fd86b5","status":"affected","lessThan":"27806fe7b9701af0963dcd510e30e7d0cc314c43","versionType":"git"},{"version":"555859308723d8d5b828304f5eb9281143fd86b5","status":"affected","lessThan":"1ccc5c059d067c5358682ad5352e7d7e9239ed9b","versionType":"git"},{"version":"555859308723d8d5b828304f5eb9281143fd86b5","status":"affected","lessThan":"9086b488f2737d5dcee86852b83f2059f1cdfabf","versionType":"git"},{"version":"555859308723d8d5b828304f5eb9281143fd86b5","status":"affected","lessThan":"d4ba6aa65fcd797152d3aebd428a7b2da49cd5eb","versionType":"git"},{"version":"555859308723d8d5b828304f5eb9281143fd86b5","status":"affected","lessThan":"ab1150115e68a46b687eb38c1ab92782018c9f2c","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/dma/sun6i-dma.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.17","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.17","versionType":"semver"},{"version":"5.10.265","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.216","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.183","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.151","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.103","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.44","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.8","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/dma/sun6i-dma.c"]}],"references":["https://git.kernel.org/stable/c/bb87440561eb72b47a2b848b5373b86433b247e6","https://git.kernel.org/stable/c/004a7a02982bed0a727a4ac7be400f00f353e7a2","https://git.kernel.org/stable/c/b150f603083cc8b72b0cbf13ec3e91f85b4390a0","https://git.kernel.org/stable/c/27806fe7b9701af0963dcd510e30e7d0cc314c43","https://git.kernel.org/stable/c/1ccc5c059d067c5358682ad5352e7d7e9239ed9b","https://git.kernel.org/stable/c/9086b488f2737d5dcee86852b83f2059f1cdfabf","https://git.kernel.org/stable/c/d4ba6aa65fcd797152d3aebd428a7b2da49cd5eb","https://git.kernel.org/stable/c/ab1150115e68a46b687eb38c1ab92782018c9f2c"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:07.220Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/80xxx/CVE-2026-80902.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-80902","state":"PUBLISHED","datePublished":"2026-09-04T17:11:17.510Z","dateUpdated":"2026-09-04T17:11:17.510Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-08-26T14:34:25.800Z"},"containers":{"cna":{"title":"dmaengine: sun6i-dma: Fix reclaim descriptors while terminating DMA","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."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"555859308723d8d5b828304f5eb9281143fd86b5","status":"affected","lessThan":"bb87440561eb72b47a2b848b5373b86433b247e6","versionType":"git"},{"version":"555859308723d8d5b828304f5eb9281143fd86b5","status":"affected","lessThan":"004a7a02982bed0a727a4ac7be400f00f353e7a2","versionType":"git"},{"version":"555859308723d8d5b828304f5eb9281143fd86b5","status":"affected","lessThan":"b150f603083cc8b72b0cbf13ec3e91f85b4390a0","versionType":"git"},{"version":"555859308723d8d5b828304f5eb9281143fd86b5","status":"affected","lessThan":"27806fe7b9701af0963dcd510e30e7d0cc314c43","versionType":"git"},{"version":"555859308723d8d5b828304f5eb9281143fd86b5","status":"affected","lessThan":"1ccc5c059d067c5358682ad5352e7d7e9239ed9b","versionType":"git"},{"version":"555859308723d8d5b828304f5eb9281143fd86b5","status":"affected","lessThan":"9086b488f2737d5dcee86852b83f2059f1cdfabf","versionType":"git"},{"version":"555859308723d8d5b828304f5eb9281143fd86b5","status":"affected","lessThan":"d4ba6aa65fcd797152d3aebd428a7b2da49cd5eb","versionType":"git"},{"version":"555859308723d8d5b828304f5eb9281143fd86b5","status":"affected","lessThan":"ab1150115e68a46b687eb38c1ab92782018c9f2c","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/dma/sun6i-dma.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.17","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.17","versionType":"semver"},{"version":"5.10.265","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.216","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.183","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.151","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.103","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.44","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.8","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/dma/sun6i-dma.c"]}],"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"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-09-04T17:11:17.510Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.17","versionEndExcluding":"5.10.265"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.17","versionEndExcluding":"5.15.216"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.17","versionEndExcluding":"6.1.183"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.17","versionEndExcluding":"6.6.151"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.17","versionEndExcluding":"6.12.103"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.17","versionEndExcluding":"6.18.44"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.17","versionEndExcluding":"7.1.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.17","versionEndExcluding":"7.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}