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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 | // SPDX-License-Identifier: GPL-2.0 /* Converted from tools/testing/selftests/bpf/verifier/div0.c */ #include <linux/bpf.h> #include <bpf/bpf_helpers.h> #include "bpf_misc.h" SEC("socket") __description("DIV32 by 0, zero check 1") __success __success_unpriv __retval(42) __naked void by_0_zero_check_1_1(void) { asm volatile (" \ w0 = 42; \ w1 = 0; \ w2 = 1; \ w2 /= w1; \ exit; \ " ::: __clobber_all); } SEC("socket") __description("DIV32 by 0, zero check 2") __success __success_unpriv __retval(42) __naked void by_0_zero_check_2_1(void) { asm volatile (" \ w0 = 42; \ r1 = 0xffffffff00000000LL ll; \ w2 = 1; \ w2 /= w1; \ exit; \ " ::: __clobber_all); } SEC("socket") __description("DIV64 by 0, zero check") __success __success_unpriv __retval(42) __naked void div64_by_0_zero_check(void) { asm volatile (" \ w0 = 42; \ w1 = 0; \ w2 = 1; \ r2 /= r1; \ exit; \ " ::: __clobber_all); } SEC("socket") __description("MOD32 by 0, zero check 1") __success __success_unpriv __retval(42) __naked void by_0_zero_check_1_2(void) { asm volatile (" \ w0 = 42; \ w1 = 0; \ w2 = 1; \ w2 %%= w1; \ exit; \ " ::: __clobber_all); } SEC("socket") __description("MOD32 by 0, zero check 2") __success __success_unpriv __retval(42) __naked void by_0_zero_check_2_2(void) { asm volatile (" \ w0 = 42; \ r1 = 0xffffffff00000000LL ll; \ w2 = 1; \ w2 %%= w1; \ exit; \ " ::: __clobber_all); } SEC("socket") __description("MOD64 by 0, zero check") __success __success_unpriv __retval(42) __naked void mod64_by_0_zero_check(void) { asm volatile (" \ w0 = 42; \ w1 = 0; \ w2 = 1; \ r2 %%= r1; \ exit; \ " ::: __clobber_all); } SEC("tc") __description("DIV32 by 0, zero check ok, cls") __success __retval(8) __naked void _0_zero_check_ok_cls_1(void) { asm volatile (" \ w0 = 42; \ w1 = 2; \ w2 = 16; \ w2 /= w1; \ r0 = r2; \ exit; \ " ::: __clobber_all); } SEC("tc") __description("DIV32 by 0, zero check 1, cls") __success __retval(0) __naked void _0_zero_check_1_cls_1(void) { asm volatile (" \ w1 = 0; \ w0 = 1; \ w0 /= w1; \ exit; \ " ::: __clobber_all); } SEC("tc") __description("DIV32 by 0, zero check 2, cls") __success __retval(0) __naked void _0_zero_check_2_cls_1(void) { asm volatile (" \ r1 = 0xffffffff00000000LL ll; \ w0 = 1; \ w0 /= w1; \ exit; \ " ::: __clobber_all); } SEC("tc") __description("DIV64 by 0, zero check, cls") __success __retval(0) __naked void by_0_zero_check_cls(void) { asm volatile (" \ w1 = 0; \ w0 = 1; \ r0 /= r1; \ exit; \ " ::: __clobber_all); } SEC("tc") __description("MOD32 by 0, zero check ok, cls") __success __retval(2) __naked void _0_zero_check_ok_cls_2(void) { asm volatile (" \ w0 = 42; \ w1 = 3; \ w2 = 5; \ w2 %%= w1; \ r0 = r2; \ exit; \ " ::: __clobber_all); } SEC("tc") __description("MOD32 by 0, zero check 1, cls") __success __retval(1) __naked void _0_zero_check_1_cls_2(void) { asm volatile (" \ w1 = 0; \ w0 = 1; \ w0 %%= w1; \ exit; \ " ::: __clobber_all); } SEC("tc") __description("MOD32 by 0, zero check 2, cls") __success __retval(1) __naked void _0_zero_check_2_cls_2(void) { asm volatile (" \ r1 = 0xffffffff00000000LL ll; \ w0 = 1; \ w0 %%= w1; \ exit; \ " ::: __clobber_all); } SEC("tc") __description("MOD64 by 0, zero check 1, cls") __success __retval(2) __naked void _0_zero_check_1_cls_3(void) { asm volatile (" \ w1 = 0; \ w0 = 2; \ r0 %%= r1; \ exit; \ " ::: __clobber_all); } SEC("tc") __description("MOD64 by 0, zero check 2, cls") __success __retval(-1) __naked void _0_zero_check_2_cls_3(void) { asm volatile (" \ w1 = 0; \ w0 = -1; \ r0 %%= r1; \ exit; \ " ::: __clobber_all); } char _license[] SEC("license") = "GPL"; |