# CVE-2026-72306: vduse: Fix race in vduse\_dev\_msg\_sync and vduse\_dev\_read\_iter

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2026-08-15 · Updated: 2026-08-17

## Affected

- Linux: version range not reported
- Linux: 5.15

## Description

In the Linux kernel, the following vulnerability has been resolved: vduse: Fix race in vduse_dev_msg_sync and vduse_dev_read_iter There is one race case in vduse_dev_msg_sync and vduse_dev_read_iter: vduse_dev_read_iter(): lock(msg_lock); dequeue_msg(send_list); unlock(msg_lock); vduse_dev_msg_sync(): wait_timeout() finish lock(msg_lock); check msg->complete is false list_del(msg); <- double list_del() crash! To fix this case, we shall ensure vduse_msg is on send_list or recv_list outside the msg_lock critical section.

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory per the references below.
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## 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/c83ad3dfa6d9953d5ce6839416bf5a1bfc50285a
- https://git.kernel.org/stable/c/09723f26ed801c083e914cec4cc0e1af4b933dc7
- https://git.kernel.org/stable/c/d7e7c813834c6c05c26033456ab7169e2f9c99eb
- https://git.kernel.org/stable/c/3755965adbb617f4283ac6ccd351ed0676843cba
- https://git.kernel.org/stable/c/d8715b5a8fdb23fef576700e71d0c253dbeddad4
- https://git.kernel.org/stable/c/8062ff9d366c4bc4ae775e14eac9a769f20c60dd
- https://git.kernel.org/stable/c/ae9c13b6fd79087cc5a216ee1649b6f012c2a238

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Page: https://cve.now/CVE-2026-72306
JSON: https://cve.now/api/v1/entries/CVE-2026-72306
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