Description
In the Linux kernel, the following vulnerability has been resolved: gue: validate REMCSUM private option length GUE private flags can indicate that remote checksum offload metadata is present. The private flags field itself is accounted for by guehdr_flags_len(), but guehdr_priv_flags_len() currently returns 0 even when GUE_PFLAG_REMCSUM is set. This lets a packet with only the private flags field pass validate_gue_flags(), after which gue_remcsum() and gue_gro_remcsum() read the missing REMCSUM start/offset fields from the following bytes. Account for GUE_PLEN_REMCSUM when GUE_PFLAG_REMCSUM is present so that malformed packets are rejected during option validation.
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
c1aa8347e73e4092411fbd96cc59531fb7e76d04 to < 158b9995d3c87f3b93f5c22df54a12e12a3438b3affectedc1aa8347e73e4092411fbd96cc59531fb7e76d04 to < 7c6876ec1b227261b51803f784c7be1b2242a1a0affectedc1aa8347e73e4092411fbd96cc59531fb7e76d04 to < 2c4de9988e9ddc760b750d6b6e701c35ff60ad14affectedc1aa8347e73e4092411fbd96cc59531fb7e76d04 to < 2a99224c120823987e4d829726f4ecb33e03fc1eaffectedc1aa8347e73e4092411fbd96cc59531fb7e76d04 to < 61e78679c7c9ca685bff58e4b6348304dc60aafdaffectedc1aa8347e73e4092411fbd96cc59531fb7e76d04 to < 4a4a1d41c6e901e773bcf795f562a47fa71f692aaffectedc1aa8347e73e4092411fbd96cc59531fb7e76d04 to < f618cbe9b24cd0202004d2db781d5f80ab77037faffectedc1aa8347e73e4092411fbd96cc59531fb7e76d04 to < d335dcc6f521571d57117b8deeebc940836e5450affected
Linux Linux
Default version status: affected
3.19affected0 to < 3.19unaffected5.10.261 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/158b9995d3c87f3b93f5c22df54a12e12a3438b3 ↗
- https://git.kernel.org/stable/c/7c6876ec1b227261b51803f784c7be1b2242a1a0 ↗
- https://git.kernel.org/stable/c/2c4de9988e9ddc760b750d6b6e701c35ff60ad14 ↗
- https://git.kernel.org/stable/c/2a99224c120823987e4d829726f4ecb33e03fc1e ↗
- https://git.kernel.org/stable/c/61e78679c7c9ca685bff58e4b6348304dc60aafd ↗
- https://git.kernel.org/stable/c/4a4a1d41c6e901e773bcf795f562a47fa71f692a ↗
- https://git.kernel.org/stable/c/f618cbe9b24cd0202004d2db781d5f80ab77037f ↗
- https://git.kernel.org/stable/c/d335dcc6f521571d57117b8deeebc940836e5450 ↗