// https://syzkaller.appspot.com/bug?id=70b6563d8dc86f5777f49ada6ecbdafac3b74e49 // autogenerated by syzkaller (https://github.com/google/syzkaller) #define _GNU_SOURCE #include #include #include #include #include #include #include #include uint64_t r[2] = {0xffffffffffffffff, 0xffffffffffffffff}; int main(void) { syscall(__NR_mmap, /*addr=*/0x1ffffffff000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x200000000000ul, /*len=*/0x1000000ul, /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x200001000000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); const char* reason; (void)reason; intptr_t res = 0; if (write(1, "executing program\n", sizeof("executing program\n") - 1)) { } // openat$comedi arguments: [ // fd: const = 0xffffffffffffff9c (8 bytes) // file: ptr[in, buffer] { // buffer: {2f 64 65 76 2f 63 6f 6d 65 64 69 33 00} (length 0xd) // } // flags: open_flags = 0xc00 (4 bytes) // mode: const = 0x0 (2 bytes) // ] // returns fd_comedi memcpy((void*)0x200000000180, "/dev/comedi3\000", 13); res = syscall(__NR_openat, /*fd=*/0xffffffffffffff9cul, /*file=*/0x200000000180ul, /*flags=O_NONBLOCK|O_APPEND*/ 0xc00, /*mode=*/0); if (res != -1) r[0] = res; // ioctl$COMEDI_DEVCONFIG arguments: [ // fd: fd_comedi (resource) // cmd: const = 0x40946400 (4 bytes) // arg: ptr[in, comedi_devconfig] { // comedi_devconfig { // board_name: buffer: {38 32 35 35 00 00 00 00 00 00 00 00 00 00 00 00 // 00 00 00 00} (length 0x14) options: array[int32] { // int32 = 0x40404f26 (4 bytes) // int32 = 0x5 (4 bytes) // int32 = 0x2 (4 bytes) // int32 = 0x401 (4 bytes) // int32 = 0xc (4 bytes) // int32 = 0x9 (4 bytes) // int32 = 0xfff (4 bytes) // int32 = 0x5c95239c (4 bytes) // int32 = 0x5 (4 bytes) // int32 = 0x3bf (4 bytes) // int32 = 0x802 (4 bytes) // int32 = 0x1600 (4 bytes) // int32 = 0x1 (4 bytes) // int32 = 0x20000001 (4 bytes) // int32 = 0x9 (4 bytes) // int32 = 0xe1cb (4 bytes) // int32 = 0x6 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x400 (4 bytes) // int32 = 0x195 (4 bytes) // int32 = 0x6 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0xb (4 bytes) // int32 = 0x402 (4 bytes) // int32 = 0x9 (4 bytes) // int32 = 0x3 (4 bytes) // int32 = 0x41 (4 bytes) // int32 = 0x5 (4 bytes) // int32 = 0x6 (4 bytes) // int32 = 0x8000003 (4 bytes) // int32 = 0xdffffffa (4 bytes) // int32 = 0x0 (4 bytes) // } // } // } // ] memcpy((void*)0x2000000000c0, "8255\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000", 20); *(uint32_t*)0x2000000000d4 = 0x40404f26; *(uint32_t*)0x2000000000d8 = 5; *(uint32_t*)0x2000000000dc = 2; *(uint32_t*)0x2000000000e0 = 0x401; *(uint32_t*)0x2000000000e4 = 0xc; *(uint32_t*)0x2000000000e8 = 9; *(uint32_t*)0x2000000000ec = 0xfff; *(uint32_t*)0x2000000000f0 = 0x5c95239c; *(uint32_t*)0x2000000000f4 = 5; *(uint32_t*)0x2000000000f8 = 0x3bf; *(uint32_t*)0x2000000000fc = 0x802; *(uint32_t*)0x200000000100 = 0x1600; *(uint32_t*)0x200000000104 = 1; *(uint32_t*)0x200000000108 = 0x20000001; *(uint32_t*)0x20000000010c = 9; *(uint32_t*)0x200000000110 = 0xe1cb; *(uint32_t*)0x200000000114 = 6; *(uint32_t*)0x200000000118 = 0; *(uint32_t*)0x20000000011c = 0x400; *(uint32_t*)0x200000000120 = 0x195; *(uint32_t*)0x200000000124 = 6; *(uint32_t*)0x200000000128 = 0; *(uint32_t*)0x20000000012c = 0xb; *(uint32_t*)0x200000000130 = 0x402; *(uint32_t*)0x200000000134 = 9; *(uint32_t*)0x200000000138 = 3; *(uint32_t*)0x20000000013c = 0x41; *(uint32_t*)0x200000000140 = 5; *(uint32_t*)0x200000000144 = 6; *(uint32_t*)0x200000000148 = 0x8000003; *(uint32_t*)0x20000000014c = 0xdffffffa; *(uint32_t*)0x200000000150 = 0; syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x40946400, /*arg=*/0x2000000000c0ul); // openat$comedi arguments: [ // fd: const = 0xffffff9c (8 bytes) // file: ptr[in, buffer] { // buffer: {2f 64 65 76 2f 63 6f 6d 65 64 69 31 00} (length 0xd) // } // flags: open_flags = 0x28444 (4 bytes) // mode: const = 0x0 (2 bytes) // ] // returns fd_comedi memcpy((void*)0x200000000040, "/dev/comedi1\000", 13); res = syscall(__NR_openat, /*fd=*/0xffffff9cul, /*file=*/0x200000000040ul, /*flags=O_NOFOLLOW|O_LARGEFILE|O_CREAT|O_APPEND|0x4*/ 0x28444, /*mode=*/0); if (res != -1) r[1] = res; // ioctl$COMEDI_DEVCONFIG arguments: [ // fd: fd_comedi (resource) // cmd: const = 0x40946400 (4 bytes) // arg: ptr[in, comedi_devconfig] { // comedi_devconfig { // board_name: buffer: {63 36 78 64 69 67 69 6f 00 00 00 00 00 00 00 00 // 00 00 00 00} (length 0x14) options: array[int32] { // int32 = 0x401 (4 bytes) // int32 = 0x181 (4 bytes) // int32 = 0x2 (4 bytes) // int32 = 0x3 (4 bytes) // int32 = 0x14000000 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0xfffffffc (4 bytes) // int32 = 0x2 (4 bytes) // int32 = 0xffd (4 bytes) // int32 = 0x7ffe (4 bytes) // int32 = 0x3 (4 bytes) // int32 = 0x1 (4 bytes) // int32 = 0x404 (4 bytes) // int32 = 0x2 (4 bytes) // int32 = 0x8000013 (4 bytes) // int32 = 0xa7 (4 bytes) // int32 = 0xffffffa7 (4 bytes) // int32 = 0x800 (4 bytes) // int32 = 0x34d (4 bytes) // int32 = 0x6e (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x4000009 (4 bytes) // int32 = 0x200 (4 bytes) // int32 = 0xe2df (4 bytes) // int32 = 0x9 (4 bytes) // int32 = 0x20000001 (4 bytes) // int32 = 0x4 (4 bytes) // int32 = 0x505e (4 bytes) // int32 = 0x7 (4 bytes) // int32 = 0xf58 (4 bytes) // int32 = 0x6 (4 bytes) // int32 = 0x0 (4 bytes) // } // } // } // ] memcpy((void*)0x200000000080, "c6xdigio\000\000\000\000\000\000\000\000\000\000\000\000", 20); *(uint32_t*)0x200000000094 = 0x401; *(uint32_t*)0x200000000098 = 0x181; *(uint32_t*)0x20000000009c = 2; *(uint32_t*)0x2000000000a0 = 3; *(uint32_t*)0x2000000000a4 = 0x14000000; *(uint32_t*)0x2000000000a8 = 0; *(uint32_t*)0x2000000000ac = 0xfffffffc; *(uint32_t*)0x2000000000b0 = 2; *(uint32_t*)0x2000000000b4 = 0xffd; *(uint32_t*)0x2000000000b8 = 0x7ffe; *(uint32_t*)0x2000000000bc = 3; *(uint32_t*)0x2000000000c0 = 1; *(uint32_t*)0x2000000000c4 = 0x404; *(uint32_t*)0x2000000000c8 = 2; *(uint32_t*)0x2000000000cc = 0x8000013; *(uint32_t*)0x2000000000d0 = 0xa7; *(uint32_t*)0x2000000000d4 = 0xffffffa7; *(uint32_t*)0x2000000000d8 = 0x800; *(uint32_t*)0x2000000000dc = 0x34d; *(uint32_t*)0x2000000000e0 = 0x6e; *(uint32_t*)0x2000000000e4 = 0; *(uint32_t*)0x2000000000e8 = 0x4000009; *(uint32_t*)0x2000000000ec = 0x200; *(uint32_t*)0x2000000000f0 = 0xe2df; *(uint32_t*)0x2000000000f4 = 9; *(uint32_t*)0x2000000000f8 = 0x20000001; *(uint32_t*)0x2000000000fc = 4; *(uint32_t*)0x200000000100 = 0x505e; *(uint32_t*)0x200000000104 = 7; *(uint32_t*)0x200000000108 = 0xf58; *(uint32_t*)0x20000000010c = 6; *(uint32_t*)0x200000000110 = 0; syscall(__NR_ioctl, /*fd=*/r[1], /*cmd=*/0x40946400, /*arg=*/0x200000000080ul); return 0; }