CVE-2026-72296

In the Linux kernel, the following vulnerability has been resolved: net: ife: require ETH_HLEN to be pullable in ife_decode() ife decode may return after making only the outer IFE header and metadata pullable. The caller then passes the decapsulated packet to eth_type_trans(), which expects the inner Ethernet header to be accessible from the linear data area. With a malformed IFE frame, the inner Ethernet header may still be shorter than ETH_HLEN in the linear area, which can lead to a crash in the original code. Fix this by extending the pull check in ife_decode() so that the inner Ethernet header is also guaranteed to be pullable before returning.

CVSS v3 9.1 CRITICAL

9.1^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/1cb42ec10294a55380e52e674b3df2b962648242
https://git.kernel.org/stable/c/5526d1997aea6c9bd865ca4d4894b52e799d735c
https://git.kernel.org/stable/c/70013f9163bef7fbd9fa62f81cf91b2a7ba66163
https://git.kernel.org/stable/c/8c8818e52fddb247ff3214622401a4de6ff8482e
https://git.kernel.org/stable/c/9406f6012b7343661efb516a11c62d4db2b62f75
https://git.kernel.org/stable/c/9433578bff9c100c466a6354574892e55293cb8f
https://git.kernel.org/stable/c/b69ad768cd4a2ef4e07c18492ae85438ed17c7cb
https://git.kernel.org/stable/c/be272e159dfe1207b67332ad6e17adcf59b4ea4b

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-15 06:22

Updated : 2026-08-17 06:18

NVD link : CVE-2026-72296

Mitre link : CVE-2026-72296

CVE.ORG link : CVE-2026-72296

JSON object : View

Products Affected

No product.

CWE

No CWE.

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The caller then passes the decapsulated packet to\neth_type_trans(), which expects the inner Ethernet header to be\naccessible from the linear data area.\n\nWith a malformed IFE frame, the inner Ethernet header may still be\nshorter than ETH_HLEN in the linear area, which can lead to a crash in\nthe original code.\n\nFix this by extending the pull check in ife_decode() so that the inner\nEthernet header is also guaranteed to be pullable before returning."}], "lastModified": "2026-08-17T06:18:32.417", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}