Bug 2521503 (CVE-2026-74627) - CVE-2026-74627 kernel: net: devmem: prevent net-iov / page mixing
Summary: CVE-2026-74627 kernel: net: devmem: prevent net-iov / page mixing
Keywords:
Status: NEW
Alias: CVE-2026-74627
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-08-22 15:48 UTC by OSIDB Bzimport
Modified: 2026-08-24 14:18 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

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Description OSIDB Bzimport 2026-08-22 15:48:44 UTC 
In the Linux kernel, the following vulnerability has been resolved:

net: devmem: prevent net-iov / page mixing

We should either have net_iov or page backed frags in a single skb,
otherwise it blows up down the stack. Don't allow mixing in
zerocopy_fill_skb_from_devmem().
Comment 1 gkamathe 2026-08-24 14:11:13 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026082220-CVE-2026-74627-6aa8@gregkh/T
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