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Anton Protopopov authored
The map_lookup_and_delete_elem() function should check for both FMODE_CAN_WRITE and FMODE_CAN_READ permissions because it returns a map element to user space. Fixes: bd513cd0 ("bpf: add MAP_LOOKUP_AND_DELETE_ELEM syscall") Signed-off-by:
Anton Protopopov <a.s.protopopov@gmail.com> Signed-off-by:
Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20200527185700.14658-5-a.s.protopopov@gmail.comSigned-off-by:
Alexei Starovoitov <ast@kernel.org>
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