fix: bound 32-bit syscall arg setup

commit: 5e664bd0caadb3bbb7dd07a6bdc29feff456f027
author: brice · 6mo ago · 2026-04-13 09:58 UTC
parent: c0e6605
signature: GPG VerifiedCD88F9E564E0102646FB6077A1A07C7C7C3E349D · arch-gpg Verified for the committer email

2 files · +16 -18

M syscall_32bit.go +0 -18


@@ -41,23 +41,6 @@ func (s *syscall15Args) Set(fn uintptr, ints []uintptr, floats []uintptr, r8 uin
41	41		s.a13 = ints[12]
42	42		s.a14 = ints[13]
43	43		s.a15 = ints[14]
44		-	s.a16 = ints[15]
45		-	s.a17 = ints[16]
46		-	s.a18 = ints[17]
47		-	s.a19 = ints[18]
48		-	s.a20 = ints[19]
49		-	s.a21 = ints[20]
50		-	s.a22 = ints[21]
51		-	s.a23 = ints[22]
52		-	s.a24 = ints[23]
53		-	s.a25 = ints[24]
54		-	s.a26 = ints[25]
55		-	s.a27 = ints[26]
56		-	s.a28 = ints[27]
57		-	s.a29 = ints[28]
58		-	s.a30 = ints[29]
59		-	s.a31 = ints[30]
60		-	s.a32 = ints[31]
61	44		s.f1 = floats[0]
62	45		s.f2 = floats[1]
63	46		s.f3 = floats[2]

@@ -73,7 +56,6 @@ func (s *syscall15Args) Set(fn uintptr, ints []uintptr, floats []uintptr, r8 uin
73	56		s.f13 = floats[12]
74	57		s.f14 = floats[13]
75	58		s.f15 = floats[14]
76		-	s.f16 = floats[15]
77	59		s.arm64_r8 = r8
78	60		}
79	61


@@ -41,23 +41,6 @@ func (s *syscall15Args) Set(fn uintptr, ints []uintptr, floats []uintptr, r8 uin
41		s.a13 = ints[12]	41	s.a13 = ints[12]
42		s.a14 = ints[13]	42	s.a14 = ints[13]
43		s.a15 = ints[14]	43	s.a15 = ints[14]
44	-	s.a16 = ints[15]
45	-	s.a17 = ints[16]
46	-	s.a18 = ints[17]
47	-	s.a19 = ints[18]
48	-	s.a20 = ints[19]
49	-	s.a21 = ints[20]
50	-	s.a22 = ints[21]
51	-	s.a23 = ints[22]
52	-	s.a24 = ints[23]
53	-	s.a25 = ints[24]
54	-	s.a26 = ints[25]
55	-	s.a27 = ints[26]
56	-	s.a28 = ints[27]
57	-	s.a29 = ints[28]
58	-	s.a30 = ints[29]
59	-	s.a31 = ints[30]
60	-	s.a32 = ints[31]
61		s.f1 = floats[0]	44	s.f1 = floats[0]
62		s.f2 = floats[1]	45	s.f2 = floats[1]
63		s.f3 = floats[2]	46	s.f3 = floats[2]

@@ -73,7 +56,6 @@ func (s *syscall15Args) Set(fn uintptr, ints []uintptr, floats []uintptr, r8 uin
73		s.f13 = floats[12]	56	s.f13 = floats[12]
74		s.f14 = floats[13]	57	s.f14 = floats[13]
75		s.f15 = floats[14]	58	s.f15 = floats[14]
76	-	s.f16 = floats[15]
77		s.arm64_r8 = r8	59	s.arm64_r8 = r8
78		}	60	}
79			61

A syscall_32bit_internal_test.go +16 -0

@@ -0,0 +1,16 @@
	1	+	//go:build (386 \|\| arm) && (freebsd \|\| linux \|\| netbsd \|\| windows)
	2	+
	3	+	package purego
	4	+
	5	+	import "testing"
	6	+
	7	+	func TestSyscall15ArgsSetDoesNotPanicWithMaxArgs(t *testing.T) {
	8	+	defer func() {
	9	+	if r := recover(); r != nil {
	10	+	t.Fatalf("Set panicked: %v", r)
	11	+	}
	12	+	}()
	13	+
	14	+	var s syscall15Args
	15	+	s.Set(1, make([]uintptr, maxArgs), make([]uintptr, maxArgs), 8)
	16	+	}

@@ -0,0 +1,16 @@
	1	+	//go:build (386 \|\| arm) && (freebsd \|\| linux \|\| netbsd \|\| windows)
	2	+
	3	+	package purego
	4	+
	5	+	import "testing"
	6	+
	7	+	func TestSyscall15ArgsSetDoesNotPanicWithMaxArgs(t *testing.T) {
	8	+	defer func() {
	9	+	if r := recover(); r != nil {
	10	+	t.Fatalf("Set panicked: %v", r)
	11	+	}
	12	+	}()
	13	+
	14	+	var s syscall15Args
	15	+	s.Set(1, make([]uintptr, maxArgs), make([]uintptr, maxArgs), 8)
	16	+	}