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%3Ba=su...
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@vger.kernel.org know about it.
From foo@baz Fri Mar 16 15:11:07 CET 2018
From: Alexei Starovoitov ast@fb.com Date: Thu, 30 Nov 2017 21:31:35 -0800 Subject: bpf: fix stack state printing in verifier log
From: Alexei Starovoitov ast@fb.com
[ 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@kernel.org Acked-by: John Fastabend john.fastabend@gmail.com Acked-by: Daniel Borkmann daniel@iogearbox.net Signed-off-by: Daniel Borkmann daniel@iogearbox.net Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- 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@fb.com are
queue-4.15/bpf-fix-stack-state-printing-in-verifier-log.patch
linux-stable-mirror@lists.linaro.org