CVE-2026-72296

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxef6980b6becb1afd9d82a4f043749a10ae81bf14 < 70013f9163bef7fbd9fa62f81cf91b2a7ba66163affected
LinuxLinuxef6980b6becb1afd9d82a4f043749a10ae81bf14 < be272e159dfe1207b67332ad6e17adcf59b4ea4baffected
LinuxLinuxef6980b6becb1afd9d82a4f043749a10ae81bf14 < 8c8818e52fddb247ff3214622401a4de6ff8482eaffected
LinuxLinuxef6980b6becb1afd9d82a4f043749a10ae81bf14 < 9433578bff9c100c466a6354574892e55293cb8faffected
LinuxLinuxef6980b6becb1afd9d82a4f043749a10ae81bf14 < 1cb42ec10294a55380e52e674b3df2b962648242affected
LinuxLinuxef6980b6becb1afd9d82a4f043749a10ae81bf14 < 5526d1997aea6c9bd865ca4d4894b52e799d735caffected
LinuxLinuxef6980b6becb1afd9d82a4f043749a10ae81bf14 < b69ad768cd4a2ef4e07c18492ae85438ed17c7cbaffected
LinuxLinuxef6980b6becb1afd9d82a4f043749a10ae81bf14 < 9406f6012b7343661efb516a11c62d4db2b62f75affected
LinuxLinux4.6affected
LinuxLinux0 < 4.6unaffected
LinuxLinux5.10.261 <= 5.10.*unaffected
LinuxLinux5.15.212 <= 5.15.*unaffected
LinuxLinux6.1.178 <= 6.1.*unaffected
LinuxLinux6.6.145 <= 6.6.*unaffected
LinuxLinux6.12.97 <= 6.12.*unaffected
LinuxLinux6.18.40 <= 6.18.*unaffected
LinuxLinux7.1.5 <= 7.1.*unaffected
LinuxLinux7.2 <= *unaffected

Weaknesses

References