bpf: Fix incorrect integer literal used for marking scratched stack.

env->scratched_stack_slots is a 64-bit value, we should use ULL
instead of UL literal values.

Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Christy Lee <christylee@fb.com>
Acked-by: Song Liu <songliubraving@fb.com>
Link: https://lore.kernel.org/r/20220108005854.658596-1-christylee@fb.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index bfb45381fb3faab84ef8fb8bd4c13f27a5768b88..a8587210907d5e80a9c1a82ead1c666cf197cdcc 100644 (file)
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -616,7 +616,7 @@ static void mark_reg_scratched(struct bpf_verifier_env *env, u32 regno)
 
 static void mark_stack_slot_scratched(struct bpf_verifier_env *env, u32 spi)
 {
-       env->scratched_stack_slots |= 1UL << spi;
+       env->scratched_stack_slots |= 1ULL << spi;
 }
 
 static bool reg_scratched(const struct bpf_verifier_env *env, u32 regno)
@@ -637,14 +637,14 @@ static bool verifier_state_scratched(const struct bpf_verifier_env *env)
 static void mark_verifier_state_clean(struct bpf_verifier_env *env)
 {
        env->scratched_regs = 0U;
-       env->scratched_stack_slots = 0UL;
+       env->scratched_stack_slots = 0ULL;
 }
 
 /* Used for printing the entire verifier state. */
 static void mark_verifier_state_scratched(struct bpf_verifier_env *env)
 {
        env->scratched_regs = ~0U;
-       env->scratched_stack_slots = ~0UL;
+       env->scratched_stack_slots = ~0ULL;
 }
 
 /* The reg state of a pointer or a bounded scalar was saved when