This is a note to let you know that I've just added the patch titled bpf: fix stack state printing in verifier log to the 4.15-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: bpf-fix-stack-state-printing-in-verifier-log.patch and it can be found in the queue-4.15 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From foo@baz Fri Mar 16 15:11:07 CET 2018 From: Alexei Starovoitov <ast@xxxxxx> Date: Thu, 30 Nov 2017 21:31:35 -0800 Subject: bpf: fix stack state printing in verifier log From: Alexei Starovoitov <ast@xxxxxx> [ Upstream commit 12a3cc8424fe1237aaeb982dec4f0914ddd22f3e ] fix incorrect stack state prints in print_verifier_state() Fixes: 638f5b90d460 ("bpf: reduce verifier memory consumption") Signed-off-by: Alexei Starovoitov <ast@xxxxxxxxxx> Acked-by: John Fastabend <john.fastabend@xxxxxxxxx> Acked-by: Daniel Borkmann <daniel@xxxxxxxxxxxxx> Signed-off-by: Daniel Borkmann <daniel@xxxxxxxxxxxxx> Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- kernel/bpf/verifier.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/kernel/bpf/verifier.c +++ b/kernel/bpf/verifier.c @@ -279,7 +279,7 @@ static void print_verifier_state(struct for (i = 0; i < state->allocated_stack / BPF_REG_SIZE; i++) { if (state->stack[i].slot_type[0] == STACK_SPILL) verbose(env, " fp%d=%s", - -MAX_BPF_STACK + i * BPF_REG_SIZE, + (-i - 1) * BPF_REG_SIZE, reg_type_str[state->stack[i].spilled_ptr.type]); } verbose(env, "\n"); Patches currently in stable-queue which might be from ast@xxxxxx are queue-4.15/bpf-fix-stack-state-printing-in-verifier-log.patch