From: Arnd Bergmann <a...@arndb.de> Date: Thu, 2 Nov 2017 12:05:52 +0100
> The bpf_verifer_ops array is generated dynamically and may be > empty depending on configuration, which then causes an out > of bounds access: > > kernel/bpf/verifier.c: In function 'bpf_check': > kernel/bpf/verifier.c:4320:29: error: array subscript is above array bounds > [-Werror=array-bounds] > > This adds a check to the start of the function as a workaround. > I would assume that the function is never called in that configuration, > so the warning is probably harmless. > > Fixes: 00176a34d9e2 ("bpf: remove the verifier ops from program structure") > Signed-off-by: Arnd Bergmann <a...@arndb.de> Applied.