diff --git a/kernel/bpf/core.c b/kernel/bpf/core.c
index f908b9356025..ad08ba341197 100644
--- a/kernel/bpf/core.c
+++ b/kernel/bpf/core.c
@@ -307,15 +307,16 @@ int bpf_prog_calc_tag(struct bpf_prog *fp)
 	return 0;
 }
 
-static int bpf_adj_delta_to_imm(struct bpf_insn *insn, u32 pos, u32 delta,
-				u32 curr, const bool probe_pass)
+static int bpf_adj_delta_to_imm(struct bpf_insn *insn, u32 pos, s32 end_old,
+				s32 end_new, u32 curr, const bool probe_pass)
 {
 	const s64 imm_min = S32_MIN, imm_max = S32_MAX;
+	s32 delta = end_new - end_old;
 	s64 imm = insn->imm;
 
-	if (curr < pos && curr + imm + 1 > pos)
+	if (curr < pos && curr + imm + 1 >= end_old)
 		imm += delta;
-	else if (curr > pos + delta && curr + imm + 1 <= pos + delta)
+	else if (curr >= end_new && curr + imm + 1 < end_new)
 		imm -= delta;
 	if (imm < imm_min || imm > imm_max)
 		return -ERANGE;
@@ -324,15 +325,16 @@ static int bpf_adj_delta_to_imm(struct bpf_insn *insn, u32 pos, u32 delta,
 	return 0;
 }
 
-static int bpf_adj_delta_to_off(struct bpf_insn *insn, u32 pos, u32 delta,
-				u32 curr, const bool probe_pass)
+static int bpf_adj_delta_to_off(struct bpf_insn *insn, u32 pos, s32 end_old,
+				s32 end_new, u32 curr, const bool probe_pass)
 {
 	const s32 off_min = S16_MIN, off_max = S16_MAX;
+	s32 delta = end_new - end_old;
 	s32 off = insn->off;
 
-	if (curr < pos && curr + off + 1 > pos)
+	if (curr < pos && curr + off + 1 >= end_old)
 		off += delta;
-	else if (curr > pos + delta && curr + off + 1 <= pos + delta)
+	else if (curr >= end_new && curr + off + 1 < end_new)
 		off -= delta;
 	if (off < off_min || off > off_max)
 		return -ERANGE;
@@ -341,10 +343,10 @@ static int bpf_adj_delta_to_off(struct bpf_insn *insn, u32 pos, u32 delta,
 	return 0;
 }
 
-static int bpf_adj_branches(struct bpf_prog *prog, u32 pos, u32 delta,
-			    const bool probe_pass)
+static int bpf_adj_branches(struct bpf_prog *prog, u32 pos, s32 end_old,
+			    s32 end_new, const bool probe_pass)
 {
-	u32 i, insn_cnt = prog->len + (probe_pass ? delta : 0);
+	u32 i, insn_cnt = prog->len + (probe_pass ? end_new - end_old : 0);
 	struct bpf_insn *insn = prog->insnsi;
 	int ret = 0;
 
@@ -356,8 +358,8 @@ static int bpf_adj_branches(struct bpf_prog *prog, u32 pos, u32 delta,
 		 * do any other adjustments. Therefore skip the patchlet.
 		 */
 		if (probe_pass && i == pos) {
-			i += delta + 1;
-			insn++;
+			i = end_new;
+			insn = prog->insnsi + end_old;
 		}
 		code = insn->code;
 		if (BPF_CLASS(code) != BPF_JMP ||
@@ -367,11 +369,11 @@ static int bpf_adj_branches(struct bpf_prog *prog, u32 pos, u32 delta,
 		if (BPF_OP(code) == BPF_CALL) {
 			if (insn->src_reg != BPF_PSEUDO_CALL)
 				continue;
-			ret = bpf_adj_delta_to_imm(insn, pos, delta, i,
-						   probe_pass);
+			ret = bpf_adj_delta_to_imm(insn, pos, end_old,
+						   end_new, i, probe_pass);
 		} else {
-			ret = bpf_adj_delta_to_off(insn, pos, delta, i,
-						   probe_pass);
+			ret = bpf_adj_delta_to_off(insn, pos, end_old,
+						   end_new, i, probe_pass);
 		}
 		if (ret)
 			break;
@@ -421,7 +423,7 @@ struct bpf_prog *bpf_patch_insn_single(struct bpf_prog *prog, u32 off,
 	 * we afterwards may not fail anymore.
 	 */
 	if (insn_adj_cnt > cnt_max &&
-	    bpf_adj_branches(prog, off, insn_delta, true))
+	    bpf_adj_branches(prog, off, off + 1, off + len, true))
 		return NULL;
 
 	/* Several new instructions need to be inserted. Make room
@@ -453,7 +455,7 @@ struct bpf_prog *bpf_patch_insn_single(struct bpf_prog *prog, u32 off,
 	 * the ship has sailed to reverse to the original state. An
 	 * overflow cannot happen at this point.
 	 */
-	BUG_ON(bpf_adj_branches(prog_adj, off, insn_delta, false));
+	BUG_ON(bpf_adj_branches(prog_adj, off, off + 1, off + len, false));
 
 	bpf_adj_linfo(prog_adj, off, insn_delta);