Answer in brief
CVE-2026-93170 records a High severity (CVSS 7.8) vulnerability in dmaengine: xilinx_dma: Fix channel idle state management in AXIDMA and MCDMA interrupt handlers. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=c0bba3a99f0709c24c2c7ada7cb098966b1d791f <7f4b989d7d87381927b98d64492f8dcf979f57ab || >=c0bba3a99f0709c24c2c7ada7cb098966b1d791f <5459e02707b27a964ae72e028d3ff72a3b687c4a || >=c0bba3a99f0709c24c2c7ada7cb098966b1d791f <425630e9eea1f9f8912b8c6abf01e0dab1e27917 || >=c0bba3a99f0709c24c2c7ada7cb098966b1d791f <fdaf297ab275c6efecac5e87669c31bc89b74297 || >=c0bba3a99f0709c24c2c7ada7cb098966b1d791f <c27d16fd2358b2fc3e1ffaca03afd11dc28630ea || >=c0bba3a99f0709c24c2c7ada7cb098966b1d791f <ec927657524be4438447944a58173c7baf7f2384 || >=c0bba3a99f0709c24c2c7ada7cb098966b1d791f <c3e943490ced0b9ad475844eda7661f6a9bcfb4a || >=c0bba3a99f0709c24c2c7ada7cb098966b1d791f <0b6d055edb55ecadadf54e930c2b4fab76fa9a5a | 7f4b989d7d87381927b98d64492f8dcf979f57ab, 5459e02707b27a964ae72e028d3ff72a3b687c4a, 425630e9eea1f9f8912b8c6abf01e0dab1e27917, fdaf297ab275c6efecac5e87669c31bc89b74297, c27d16fd2358b2fc3e1ffaca03afd11dc28630ea, ec927657524be4438447944a58173c7baf7f2384, c3e943490ced0b9ad475844eda7661f6a9bcfb4a, 0b6d055edb55ecadadf54e930c2b4fab76fa9a5a |
| Linux/Linuxgeneric | 4.7 | Not reported |
Published upstream
Sep 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 17, 2026
In the Linux kernel, the following vulnerability has been resolved: dmaengine: xilinx_dma: Fix channel idle state management in AXIDMA and MCDMA interrupt handlers Fix a race condition in AXIDMA and MCDMA irq handlers where the channel could be incorrectly marked as idle and attempt spurious transfers when descriptors are still being processed. The issue occurs when: 1. Multiple descriptors are queued and active. 2. An interrupt fires after completing some descriptors. 3. xilinx_dma_complete_descriptor() moves completed descriptors to done_list. 4. Channel is marked idle and start_transfer() is called even though active_list still contains unprocessed descriptors. 5. This leads to premature transfer attempts and potential descriptor corruption or missed completions. Only mark the channel as idle and start new transfers when the active list is actually empty, ensuring proper channel state management and avoiding spurious transfer attempts.
Quoted source text, attributed separately from HOL analysis.