CVE-2026-74627: net: devmem: prevent net-iov / page mixing

Published Aug 22, 2026

Updated

In the Linux kernel, the following vulnerability has been resolved:

net: devmem: prevent net-iov / page mixing

We should either have netiov or page backed frags in a single skb, otherwise it blows up down the stack. Don't allow mixing in zerocopyfillskbfromdevmem().

Event History

Aug 22, 2026

CVE Published

via MITRE·03:32 PM

Data Sourced

via MITRE·03:32 PM

Description

Data Sourced

via NVD·04:16 PM

Description

Frequently Asked Questions

What condition is required to trigger the failure?

A socket buffer must contain a mix of net_iov-backed fragments and page-backed fragments. The vulnerable path is zerocopy_fill_skb_from_devmem().

How can I verify whether a fix is present?

Check whether the kernel contains any of the referenced stable commits: e9bfe12b1d04c34c6fedcba21d9709b65c08aa33, ed08011ae0be88f16cceae190535d6c790c83b0c, or 53a43508ee332d8bffe40590c3d189c92a551f9f. The provided data does not identify affected or fixed kernel version numbers.

CVE-2026-74627: net: devmem: prevent net-iov / page mixing

Event History

Frequently Asked Questions

What condition is required to trigger the failure?

How can I verify whether a fix is present?

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Frequently Asked Questions

What condition is required to trigger the failure?

How can I verify whether a fix is present?