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CVE-2026-72296

net: ife: require ETH_HLEN to be pullable in ife_decode()

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 5.10.261, 5.15.212, 6.1.178, 6.6.145, 6.12.97, and 2 more
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: yes
  • Technical impact: partial

Summary

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.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: yes · Technical impact: partial

  3. Record last updated

Affected versions

  • Linux Linux

    From ef6980b6becb1afd9d82a4f043749a10ae81bf14 · fixed in 70013f9163bef7fbd9fa62f81cf91b2a7ba66163; From ef6980b6becb1afd9d82a4f043749a10ae81bf14 · fixed in be272e159dfe1207b67332ad6e17adcf59b4ea4b; From ef6980b6becb1afd9d82a4f043749a10ae81bf14 · fixed in 8c8818e52fddb247ff3214622401a4de6ff8482e; From ef6980b6becb1afd9d82a4f043749a10ae81bf14 · fixed in 9433578bff9c100c466a6354574892e55293cb8f; From ef6980b6becb1afd9d82a4f043749a10ae81bf14 · fixed in 1cb42ec10294a55380e52e674b3df2b962648242; From ef6980b6becb1afd9d82a4f043749a10ae81bf14 · fixed in 5526d1997aea6c9bd865ca4d4894b52e799d735c; From ef6980b6becb1afd9d82a4f043749a10ae81bf14 · fixed in b69ad768cd4a2ef4e07c18492ae85438ed17c7cb; From ef6980b6becb1afd9d82a4f043749a10ae81bf14 · fixed in 9406f6012b7343661efb516a11c62d4db2b62f75

  • Linux Linux

    4.6

  • KernelLinux

    From 4.6.0 · fixed in 5.10.261; From 5.11.0 · fixed in 5.15.212; From 5.16.0 · fixed in 6.1.178; From 6.2.0 · fixed in 6.6.145; From 6.7.0 · fixed in 6.12.97; From 6.13.0 · fixed in 6.18.40; From 6.19.0 · fixed in 7.1.5

References 8

git.kernel.org