diff options
Diffstat (limited to 'kernel/bpf/verifier.c')
| -rw-r--r-- | kernel/bpf/verifier.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c index 4e47992361ea..5c9dd16b2c56 100644 --- a/kernel/bpf/verifier.c +++ b/kernel/bpf/verifier.c @@ -15897,6 +15897,8 @@ static int is_scalar_branch_taken(struct bpf_reg_state *reg1, struct bpf_reg_sta */ if (tnum_is_const(t1) && tnum_is_const(t2)) return t1.value == t2.value; + if (!tnum_overlap(t1, t2)) + return 0; /* non-overlapping ranges */ if (umin1 > umax2 || umax1 < umin2) return 0; @@ -15921,6 +15923,8 @@ static int is_scalar_branch_taken(struct bpf_reg_state *reg1, struct bpf_reg_sta */ if (tnum_is_const(t1) && tnum_is_const(t2)) return t1.value != t2.value; + if (!tnum_overlap(t1, t2)) + return 1; /* non-overlapping ranges */ if (umin1 > umax2 || umax1 < umin2) return 1; |