What’s Vulnerable › Vulnerabilities

CVE-2026-72306: vduse: Fix race in vduse_dev_msg_sync and vduse_dev_read_iter

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-15 · updated 2026-08-17

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.

Affected products

• Linux kernel: 5.15 — fixed in 7.2

How to fix

Upgrade to a fixed version: Linux kernel 7.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/09723f26ed801c083e914cec4cc0e1af4b933dc7
• https://git.kernel.org/stable/c/3755965adbb617f4283ac6ccd351ed0676843cba
• https://git.kernel.org/stable/c/8062ff9d366c4bc4ae775e14eac9a769f20c60dd
• https://git.kernel.org/stable/c/ae9c13b6fd79087cc5a216ee1649b6f012c2a238
• https://git.kernel.org/stable/c/c83ad3dfa6d9953d5ce6839416bf5a1bfc50285a
• https://git.kernel.org/stable/c/d7e7c813834c6c05c26033456ab7169e2f9c99eb
• https://git.kernel.org/stable/c/d8715b5a8fdb23fef576700e71d0c253dbeddad4

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