diff --git a/bpf/protocol_common.h b/bpf/protocol_common.h
index 5c5579d4b..df8536285 100644
--- a/bpf/protocol_common.h
+++ b/bpf/protocol_common.h
@@ -162,7 +162,9 @@ static __always_inline int read_msghdr_buf(struct msghdr *msg, u8* buf, size_t m
     if (bpf_core_enum_value_exists(enum iter_type___dummy, ITER_UBUF)) {
         const int iter_ubuf = bpf_core_enum_value(enum iter_type___dummy, ITER_UBUF);
 
-        if (ctx.ubuf != NULL && (ctx.iter_type & iter_ubuf) == iter_ubuf) {
+        // ITER_UBUF is never a bitmask, and can be 0, so we perform a proper
+        // equality check rather than a bitwise and like we do for ITER_IOVEC
+        if (ctx.ubuf != NULL && ctx.iter_type == iter_ubuf) {
             bpf_clamp_umax(ctx.count, IO_VEC_MAX_LEN);
             return bpf_probe_read(buf, ctx.count, ctx.ubuf) == 0 ? ctx.count : 0;
         }
diff --git a/pkg/internal/ebpf/httpfltr/bpf_arm64_bpfel.o b/pkg/internal/ebpf/httpfltr/bpf_arm64_bpfel.o
index 160025351..65a446924 100644
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diff --git a/pkg/internal/ebpf/httpfltr/bpf_debug_arm64_bpfel.o b/pkg/internal/ebpf/httpfltr/bpf_debug_arm64_bpfel.o
index 5372fa952..d21948418 100644
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diff --git a/pkg/internal/ebpf/httpfltr/bpf_debug_x86_bpfel.o b/pkg/internal/ebpf/httpfltr/bpf_debug_x86_bpfel.o
index d1550530a..6236e8da3 100644
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diff --git a/pkg/internal/ebpf/httpfltr/bpf_tp_arm64_bpfel.o b/pkg/internal/ebpf/httpfltr/bpf_tp_arm64_bpfel.o
index cde64bf97..a12a5163e 100644
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diff --git a/pkg/internal/ebpf/httpfltr/bpf_tp_debug_arm64_bpfel.o b/pkg/internal/ebpf/httpfltr/bpf_tp_debug_arm64_bpfel.o
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diff --git a/pkg/internal/ebpf/httpfltr/bpf_tp_debug_x86_bpfel.o b/pkg/internal/ebpf/httpfltr/bpf_tp_debug_x86_bpfel.o
index 5d226df29..6d88be517 100644
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diff --git a/pkg/internal/ebpf/httpfltr/bpf_tp_x86_bpfel.o b/pkg/internal/ebpf/httpfltr/bpf_tp_x86_bpfel.o
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diff --git a/pkg/internal/ebpf/httpfltr/bpf_x86_bpfel.o b/pkg/internal/ebpf/httpfltr/bpf_x86_bpfel.o
index e0bbf7efd..5e14db788 100644
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diff --git a/pkg/internal/ebpf/httpssl/bpf_arm64_bpfel.o b/pkg/internal/ebpf/httpssl/bpf_arm64_bpfel.o
index 6a549dce7..192790f7d 100644
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diff --git a/pkg/internal/ebpf/httpssl/bpf_debug_arm64_bpfel.o b/pkg/internal/ebpf/httpssl/bpf_debug_arm64_bpfel.o
index ae89bbe4e..573b2abdf 100644
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diff --git a/pkg/internal/ebpf/httpssl/bpf_debug_x86_bpfel.o b/pkg/internal/ebpf/httpssl/bpf_debug_x86_bpfel.o
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diff --git a/pkg/internal/ebpf/httpssl/bpf_tp_arm64_bpfel.o b/pkg/internal/ebpf/httpssl/bpf_tp_arm64_bpfel.o
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diff --git a/pkg/internal/ebpf/httpssl/bpf_tp_debug_arm64_bpfel.o b/pkg/internal/ebpf/httpssl/bpf_tp_debug_arm64_bpfel.o
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diff --git a/pkg/internal/ebpf/httpssl/bpf_tp_debug_x86_bpfel.o b/pkg/internal/ebpf/httpssl/bpf_tp_debug_x86_bpfel.o
index 2c5ca1912..bb65efaa7 100644
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diff --git a/pkg/internal/ebpf/httpssl/bpf_tp_x86_bpfel.o b/pkg/internal/ebpf/httpssl/bpf_tp_x86_bpfel.o
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diff --git a/pkg/internal/ebpf/httpssl/bpf_x86_bpfel.o b/pkg/internal/ebpf/httpssl/bpf_x86_bpfel.o
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