diff --git a/src/runtime/os_linux_arm64.go b/src/runtime/os_linux_arm64.go
index cbe528b4af..2d6f68bdd9 100644
--- a/src/runtime/os_linux_arm64.go
+++ b/src/runtime/os_linux_arm64.go
@@ -22,7 +22,15 @@ func archauxv(tag, val uintptr) {
 	case _AT_HWCAP:
 		// arm64 doesn't have a 'cpuid' instruction equivalent and relies on
 		// HWCAP/HWCAP2 bits for hardware capabilities.
-		cpu.HWCap = uint(val)
+		hwcap := uint(val)
+		if GOOS == "android" {
+			// The Samsung S9+ kernel reports support for atomics, but not all cores
+			// actually support them, resulting in SIGILL. See issue #28431.
+			// TODO(elias.naur): Only disable the optimization on bad chipsets.
+			const hwcap_ATOMICS = 1 << 8
+			hwcap &= ^uint(hwcap_ATOMICS)
+		}
+		cpu.HWCap = hwcap
 	case _AT_HWCAP2:
 		cpu.HWCap2 = uint(val)
 	}