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… (CVE-2026-74627)
A vulnerability in the Linux kernel related to the net: devmem component has been resolved. The issue involved improper mixing of net_iov and page-backed fragments within a single socket buffer (skb), which could cause failures downstream. The fix prevents this mixing in the zerocopy_fill_skb_from_devmem() function.
AI Analysis
Technical Summary
CVE-2026-74627 addresses a flaw in the Linux kernel's net: devmem code where both net_iov and page-backed fragments were allowed to coexist in a single skb. This improper mixing could cause instability or crashes further down the network stack. The vulnerability was fixed by enforcing that either net_iov or page-backed fragments are present exclusively, preventing the problematic mixing in the zerocopy_fill_skb_from_devmem() function.
Potential Impact
The vulnerability could lead to kernel instability or crashes when the network stack processes socket buffers containing mixed fragment types. No information about remote code execution or privilege escalation is provided. No known exploits in the wild have been reported.
Mitigation Recommendations
A fix for this vulnerability has been implemented in the Linux kernel. Users should apply the official kernel updates that include this patch. Since no specific patch links or affected versions are provided, users should consult their Linux distribution's security advisories for the relevant updates.
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… (CVE-2026-74627)
Description
A vulnerability in the Linux kernel related to the net: devmem component has been resolved. The issue involved improper mixing of net_iov and page-backed fragments within a single socket buffer (skb), which could cause failures downstream. The fix prevents this mixing in the zerocopy_fill_skb_from_devmem() function.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-74627 addresses a flaw in the Linux kernel's net: devmem code where both net_iov and page-backed fragments were allowed to coexist in a single skb. This improper mixing could cause instability or crashes further down the network stack. The vulnerability was fixed by enforcing that either net_iov or page-backed fragments are present exclusively, preventing the problematic mixing in the zerocopy_fill_skb_from_devmem() function.
Potential Impact
The vulnerability could lead to kernel instability or crashes when the network stack processes socket buffers containing mixed fragment types. No information about remote code execution or privilege escalation is provided. No known exploits in the wild have been reported.
Mitigation Recommendations
A fix for this vulnerability has been implemented in the Linux kernel. Users should apply the official kernel updates that include this patch. Since no specific patch links or affected versions are provided, users should consult their Linux distribution's security advisories for the relevant updates.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-78h9-c595-34hg
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-74627"]
- Ecosystems
- []
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6a8a27f2acd9273b499bc848
Added to database: 08/22/2026, 22:51:30 UTC
Last enriched: 08/22/2026, 23:39:49 UTC
Last updated: 08/23/2026, 00:12:11 UTC
Views: 2
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