VulnerabilityPublished 15 Aug 2026Updated 6 Nov 2026

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

Affects Linux kernelSource CVE Database V5

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Not known to be exploited · fixed in d8715b5a8fdb23fef576700e71d0c253dbeddad4 : update Linux kernel when convenient.

Data as of 6 Nov 2026, 17:04 UTC

Severity

Unrated

Rated by Threat Radar · CVSS not yet scored by NVD

Thin evidence

One scorer or none

Exploitation: No evidence of active exploitation and no public proof of concept
Automatable: Attackers cannot reliably automate steps 1–4 of the kill chain
Technical impact: Limited control over the software or limited information exposure

CISA SSVC assessment, 2026-11-06.

Patch

Available – fixed in d8715b5a8fdb23fef576700e71d0c253dbeddad4, d7e7c813834c6c05c26033456ab7169e2f9c99eb, c83ad3dfa6d9953d5ce6839416bf5a1bfc50285a +4

Exploitation evidence

Disclosed: evidence found.
CVE published 15 Aug 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 6 Nov 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ c8a6153b6c59d95c0e091f053f6f180952ade91e, < d8715b5a8fdb23fef576700e71d0c253dbeddad4	Fixed in d8715b5a8fdb23fef576700e71d0c253dbeddad4
LinuxLinux	Affected ≥ c8a6153b6c59d95c0e091f053f6f180952ade91e, < d7e7c813834c6c05c26033456ab7169e2f9c99eb	Fixed in d7e7c813834c6c05c26033456ab7169e2f9c99eb
LinuxLinux	Affected ≥ c8a6153b6c59d95c0e091f053f6f180952ade91e, < c83ad3dfa6d9953d5ce6839416bf5a1bfc50285a	Fixed in c83ad3dfa6d9953d5ce6839416bf5a1bfc50285a
LinuxLinux	Affected ≥ c8a6153b6c59d95c0e091f053f6f180952ade91e, < ae9c13b6fd79087cc5a216ee1649b6f012c2a238	Fixed in ae9c13b6fd79087cc5a216ee1649b6f012c2a238
LinuxLinux	Affected ≥ c8a6153b6c59d95c0e091f053f6f180952ade91e, < 3755965adbb617f4283ac6ccd351ed0676843cba	Fixed in 3755965adbb617f4283ac6ccd351ed0676843cba
LinuxLinux	Affected ≥ c8a6153b6c59d95c0e091f053f6f180952ade91e, < 09723f26ed801c083e914cec4cc0e1af4b933dc7	Fixed in 09723f26ed801c083e914cec4cc0e1af4b933dc7

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.

References

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