I would expect better subject, perhaps something like:
"fix array boundary in check_map_func_compatibility"
Wed, Aug 12, 2015 at 09:39:34AM CEST, weich...@plumgrid.com wrote:
>Wrong array boundary is used.
>
>Fixes: 35578d798400 bpf: Implement function bpf_perf_event_read())
>Cc: Kaixu Xia <xiaka...@huawei.com>
>Cc: Alexei Starovoitov <a...@plumgrid.com>
>Signed-off-by: Wei-Chun Chao <weich...@plumgrid.com>
>---
> kernel/bpf/verifier.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
>diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
>index 48e1c71..ed12e38 100644
>--- a/kernel/bpf/verifier.c
>+++ b/kernel/bpf/verifier.c
>@@ -853,7 +853,7 @@ static int check_map_func_compatibility(struct bpf_map
>*map, int func_id)
> if (!map)
> return 0;
>
>- for (i = 0; i <= ARRAY_SIZE(func_limit); i++) {
>+ for (i = 0; i < ARRAY_SIZE(func_limit); i++) {
> bool_map = (map->map_type == func_limit[i].map_type);
> bool_func = (func_id == func_limit[i].func_id);
> /* only when map & func pair match it can continue.
>--
>1.9.1
>
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