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-rw-r--r--kernel/bpf/verifier.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index 2abc79dbf281..50e80dbbc178 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -3479,7 +3479,8 @@ static int check_stack_write_fixed_off(struct bpf_verifier_env *env,
bool sanitize = reg && is_spillable_regtype(reg->type);
for (i = 0; i < size; i++) {
- u8 type = state->stack[spi].slot_type[i];
+ u8 type = state->stack[spi].slot_type[(slot - i) %
+ BPF_REG_SIZE];
if (type != STACK_MISC && type != STACK_ZERO) {
sanitize = true;