{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-80525","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-08-26T14:34:25.764Z","datePublished":"2026-08-26T14:37:04.973Z","dateUpdated":"2026-08-26T14:37:04.973Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-08-26T14:37:04.973Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: SOF: ipc4-topology: Refresh copier IPC payload before widget setup\n\nThe ipc_config_data buffer for copier widgets is built once during\nipc_prepare (called from sof_pcm_setup_connected_widgets) and cached\nfor reuse. For host copiers this buffer contains the copier_data with\ngtw_cfg.node_id (host DMA ID). For DAI copiers it additionally includes\na dma_config_tlv trailer with stream_id and dma_channel_id for HDA link\nDMA.\n\nOn suspend/resume, both host and link DMA streams are released and\nre-allocated with potentially different stream tags. The underlying\ncopier_data and dma_config_tlv structures are correctly updated by\nhost_config and sdw_hda_dai_hw_params respectively. However, since the\nwidget list (spcm->stream[].list) persists across suspend,\nsof_pcm_hw_params skips sof_pcm_setup_connected_widgets and ipc_prepare\nnever runs again to rebuild ipc_config_data. The stale cached payload\nis then sent to firmware with boot-time DMA channel assignments, causing\nDMA channel conflicts that lead to firmware errors and crashes.\n\nFix this by refreshing copier_data and dma_config_tlv portions of\nipc_config_data in sof_ipc4_widget_setup right before the IPC message\nis sent. This ensures the payload always reflects the current DMA state\nregardless of whether ipc_prepare ran.\n\nFor DAI copiers, the gtw_cfg.config_length in copier_data is temporarily\ninflated to include the TLV size (matching the ipc_config_data layout)\nbefore copying, then restored, mirroring what\nsof_ipc4_prepare_copier_module does when first building the buffer."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["sound/soc/sof/ipc4-topology.c"],"versions":[{"version":"e9c6b118de1afc1d32a4eb3bc9f3d114d4fe0f1a","lessThan":"decb87e76716d11d846c9c055e309c8ff90d7656","status":"affected","versionType":"git"},{"version":"e9c6b118de1afc1d32a4eb3bc9f3d114d4fe0f1a","lessThan":"2a7d8fc0fd50e7a2020989d9840cabb74c0282e3","status":"affected","versionType":"git"},{"version":"e9c6b118de1afc1d32a4eb3bc9f3d114d4fe0f1a","lessThan":"574498e56024082a0da68474ad4526d250732411","status":"affected","versionType":"git"},{"version":"e9c6b118de1afc1d32a4eb3bc9f3d114d4fe0f1a","lessThan":"0c0e418dbcf0582bf80d8dbfd9b306607c065992","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["sound/soc/sof/ipc4-topology.c"],"versions":[{"version":"6.10","status":"affected"},{"version":"0","lessThan":"6.10","status":"unaffected","versionType":"semver"},{"version":"6.12.105","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.46","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.1.10","lessThanOrEqual":"7.1.*","status":"unaffected","versionType":"semver"},{"version":"7.2","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.10","versionEndExcluding":"6.12.105"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.10","versionEndExcluding":"6.18.46"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.10","versionEndExcluding":"7.1.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.10","versionEndExcluding":"7.2"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/decb87e76716d11d846c9c055e309c8ff90d7656"},{"url":"https://git.kernel.org/stable/c/2a7d8fc0fd50e7a2020989d9840cabb74c0282e3"},{"url":"https://git.kernel.org/stable/c/574498e56024082a0da68474ad4526d250732411"},{"url":"https://git.kernel.org/stable/c/0c0e418dbcf0582bf80d8dbfd9b306607c065992"}],"title":"ASoC: SOF: ipc4-topology: Refresh copier IPC payload before widget setup","x_generator":{"engine":"bippy-1.2.0"}}}}