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authorChenbo Feng <fengc@google.com>2018-03-19 17:57:27 -0700
committerDaniel Borkmann <daniel@iogearbox.net>2018-03-20 23:50:39 +0100
commit0fa4fe85f4724fff89b09741c437cbee9cf8b008 (patch)
tree38f02d936f9ef5b3e9fe9af90f8565c76d16e91a /Makefile
parentf005afede992e265bb98534b86912bb669ccd0d2 (diff)
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bpf: skip unnecessary capability check
The current check statement in BPF syscall will do a capability check for CAP_SYS_ADMIN before checking sysctl_unprivileged_bpf_disabled. This code path will trigger unnecessary security hooks on capability checking and cause false alarms on unprivileged process trying to get CAP_SYS_ADMIN access. This can be resolved by simply switch the order of the statement and CAP_SYS_ADMIN is not required anyway if unprivileged bpf syscall is allowed. Signed-off-by: Chenbo Feng <fengc@google.com> Acked-by: Lorenzo Colitti <lorenzo@google.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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