What’s Vulnerable › Vulnerabilities

CVE-2026-72355: netfs: Fix barriering when walking subrequest list

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-15 · updated 2026-09-21

Description

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix barriering when walking subrequest list Fix the barriering used when walking the subrequest list in retry as there's a possibility of seeing a subreq that's just been added by the application thread.

Affected products

• Linux kernel: 6.10 — 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/4cca4b44e561a19c77cb1949ae6846da0539db40
• https://git.kernel.org/stable/c/5c6ce05e406520290c1d89da97fb3cd70c09137d
• https://git.kernel.org/stable/c/be47c047250671c9225c0319ca4695be9b391c59

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