Messages in this thread | | | Date | Thu, 1 Jun 2023 09:24:10 +0100 | Subject | Re: [PATCH net v2] net/sched: flower: fix possible OOB write in fl_set_geneve_opt() | From | Pieter Jansen van Vuuren <> |
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On 31/05/2023 11:28, Hangyu Hua wrote: > If we send two TCA_FLOWER_KEY_ENC_OPTS_GENEVE packets and their total > size is 252 bytes(key->enc_opts.len = 252) then > key->enc_opts.len = opt->length = data_len / 4 = 0 when the third > TCA_FLOWER_KEY_ENC_OPTS_GENEVE packet enters fl_set_geneve_opt. This > bypasses the next bounds check and results in an out-of-bounds. > > Fixes: 0a6e77784f49 ("net/sched: allow flower to match tunnel options") > Signed-off-by: Hangyu Hua <hbh25y@gmail.com>
Reviewed-by: Pieter Jansen van Vuuren <pieter.jansen-van-vuuren@amd.com>
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