Commit 8e17c1b1 authored Aug 07, 2017 by Edward Cree Committed by David S. Miller Aug 08, 2017

bpf/verifier: increase complexity limit to 128k



The more detailed value tracking can reduce the effectiveness of pruning
 for some programs.  So, to avoid rejecting previously valid programs, up
 the limit to 128kinsns.  Hopefully we will be able to bring this back
 down later by improving pruning performance.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 0cbf4741

kernel/bpf/verifier.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -140,7 +140,7 @@ struct bpf_verifier_stack_elem {
		struct bpf_verifier_stack_elem *next;
		};

		#define BPF_COMPLEXITY_LIMIT_INSNS 98304
		#define BPF_COMPLEXITY_LIMIT_INSNS 131072
		#define BPF_COMPLEXITY_LIMIT_STACK 1024

		#define BPF_MAP_PTR_POISON ((void *)0xeB9F + POISON_POINTER_DELTA)