Description
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 products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
ef6980b6becb1afd9d82a4f043749a10ae81bf14 to < 70013f9163bef7fbd9fa62f81cf91b2a7ba66163affectedef6980b6becb1afd9d82a4f043749a10ae81bf14 to < be272e159dfe1207b67332ad6e17adcf59b4ea4baffectedef6980b6becb1afd9d82a4f043749a10ae81bf14 to < 8c8818e52fddb247ff3214622401a4de6ff8482eaffectedef6980b6becb1afd9d82a4f043749a10ae81bf14 to < 9433578bff9c100c466a6354574892e55293cb8faffectedef6980b6becb1afd9d82a4f043749a10ae81bf14 to < 1cb42ec10294a55380e52e674b3df2b962648242affectedef6980b6becb1afd9d82a4f043749a10ae81bf14 to < 5526d1997aea6c9bd865ca4d4894b52e799d735caffectedef6980b6becb1afd9d82a4f043749a10ae81bf14 to < b69ad768cd4a2ef4e07c18492ae85438ed17c7cbaffectedef6980b6becb1afd9d82a4f043749a10ae81bf14 to < 9406f6012b7343661efb516a11c62d4db2b62f75affected
Linux Linux
Default version status: affected
4.6affected0 to < 4.6unaffected5.10.261 to ≤ 5.10.*unaffected5.15.212 to ≤ 5.15.*unaffected6.1.178 to ≤ 6.1.*unaffected6.6.145 to ≤ 6.6.*unaffected6.12.97 to ≤ 6.12.*unaffected6.18.40 to ≤ 6.18.*unaffected7.1.5 to ≤ 7.1.*unaffected7.2 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/70013f9163bef7fbd9fa62f81cf91b2a7ba66163 ↗
- https://git.kernel.org/stable/c/be272e159dfe1207b67332ad6e17adcf59b4ea4b ↗
- https://git.kernel.org/stable/c/8c8818e52fddb247ff3214622401a4de6ff8482e ↗
- https://git.kernel.org/stable/c/9433578bff9c100c466a6354574892e55293cb8f ↗
- https://git.kernel.org/stable/c/1cb42ec10294a55380e52e674b3df2b962648242 ↗
- https://git.kernel.org/stable/c/5526d1997aea6c9bd865ca4d4894b52e799d735c ↗
- https://git.kernel.org/stable/c/b69ad768cd4a2ef4e07c18492ae85438ed17c7cb ↗
- https://git.kernel.org/stable/c/9406f6012b7343661efb516a11c62d4db2b62f75 ↗