// autogenerated by syzkaller (https://github.com/google/syzkaller) #define _GNU_SOURCE #include #include #include #include #include #include #include #include #ifndef __NR_add_key #define __NR_add_key 217 #endif #ifndef __NR_bpf #define __NR_bpf 280 #endif #ifndef __NR_io_uring_register #define __NR_io_uring_register 427 #endif #ifndef __NR_io_uring_setup #define __NR_io_uring_setup 425 #endif #ifndef __NR_keyctl #define __NR_keyctl 219 #endif #ifndef __NR_mlockall #define __NR_mlockall 230 #endif #ifndef __NR_mmap #define __NR_mmap 222 #endif #ifndef __NR_mremap #define __NR_mremap 216 #endif #ifndef __NR_munmap #define __NR_munmap 215 #endif #ifndef __NR_openat #define __NR_openat 56 #endif #ifndef __NR_read #define __NR_read 63 #endif #ifndef __NR_shmctl #define __NR_shmctl 195 #endif #define BITMASK(bf_off, bf_len) (((1ull << (bf_len)) - 1) << (bf_off)) #define STORE_BY_BITMASK(type, htobe, addr, val, bf_off, bf_len) \ *(type*)(addr) = \ htobe((htobe(*(type*)(addr)) & ~BITMASK((bf_off), (bf_len))) | \ (((type)(val) << (bf_off)) & BITMASK((bf_off), (bf_len)))) uint64_t r[7] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0}; int main(void) { syscall(__NR_mmap, /*addr=*/0x1ffff000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x20000000ul, /*len=*/0x1000000ul, /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x21000000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1, /*offset=*/0ul); const char* reason; (void)reason; intptr_t res = 0; if (write(1, "executing program\n", sizeof("executing program\n") - 1)) { } *(uint32_t*)0x20000004 = 0; *(uint32_t*)0x20000008 = 0; *(uint32_t*)0x2000000c = 0; *(uint32_t*)0x20000010 = 0; *(uint32_t*)0x20000018 = -1; memset((void*)0x2000001c, 0, 12); res = syscall(__NR_io_uring_setup, /*entries=*/0xe68, /*params=*/0x20000000ul); if (res != -1) r[0] = res; memset((void*)0x20000080, 111, 1); syscall(__NR_io_uring_register, /*fd=*/r[0], /*opcode=*/0xaul, /*arg=*/0x20000080ul, /*size=*/1ul); syscall(__NR_mmap, /*addr=*/0x20000000ul, /*len=*/0xa000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1, /*offset=*/0ul); res = syscall(__NR_bpf, /*cmd=*/0ul, /*arg=*/0ul, /*size=*/0xfffffffffffffc91ul); if (res != -1) r[1] = res; *(uint32_t*)0x200000c0 = -1; *(uint32_t*)0x200000c4 = 0; res = syscall(__NR_bpf, /*cmd=*/0x21ul, /*arg=*/0x200000c0ul, /*size=*/8ul); if (res != -1) r[2] = res; *(uint32_t*)0x20000c80 = -1; *(uint32_t*)0x20000c84 = 0x20; *(uint64_t*)0x20000c88 = 0x20000280; *(uint64_t*)0x20000280 = 0x20000180; *(uint32_t*)0x20000288 = 0x95; *(uint64_t*)0x20000290 = 0x20000b80; res = syscall(__NR_bpf, /*cmd=*/0xful, /*arg=*/0x20000c80ul, /*size=*/0x10ul); if (res != -1) r[3] = *(uint32_t*)0x2000028c; memcpy((void*)0x20000040, "./file1\000", 8); res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x20000040ul, /*flags=*/0ul, /*mode=*/0ul); if (res != -1) r[4] = res; syscall(__NR_read, /*fd=*/r[4], /*buf=*/0ul, /*count=*/0ul); *(uint32_t*)0x20000cc0 = 0x1b; *(uint32_t*)0x20000cc4 = 0; *(uint32_t*)0x20000cc8 = 0; *(uint32_t*)0x20000ccc = 0x9ff; *(uint32_t*)0x20000cd0 = 0; *(uint32_t*)0x20000cd4 = r[1]; *(uint32_t*)0x20000cd8 = 0; memset((void*)0x20000cdc, 0, 16); *(uint32_t*)0x20000cec = 0; *(uint32_t*)0x20000cf0 = -1; *(uint32_t*)0x20000cf4 = 4; *(uint32_t*)0x20000cf8 = 4; *(uint32_t*)0x20000cfc = 4; *(uint64_t*)0x20000d00 = 0; res = syscall(__NR_bpf, /*cmd=*/0ul, /*arg=*/0x20000cc0ul, /*size=*/0x48ul); if (res != -1) r[5] = res; *(uint32_t*)0x20000e00 = 0; *(uint32_t*)0x20000e04 = 6; *(uint64_t*)0x20000e08 = 0x20000040; *(uint8_t*)0x20000040 = 0x18; STORE_BY_BITMASK(uint8_t, , 0x20000041, 7, 0, 4); STORE_BY_BITMASK(uint8_t, , 0x20000041, 4, 4, 4); *(uint16_t*)0x20000042 = 0; *(uint32_t*)0x20000044 = 4; *(uint8_t*)0x20000048 = 0; *(uint8_t*)0x20000049 = 0; *(uint16_t*)0x2000004a = 0; *(uint32_t*)0x2000004c = 0; STORE_BY_BITMASK(uint8_t, , 0x20000050, 4, 0, 3); STORE_BY_BITMASK(uint8_t, , 0x20000050, 1, 3, 1); STORE_BY_BITMASK(uint8_t, , 0x20000050, 0, 4, 4); STORE_BY_BITMASK(uint8_t, , 0x20000051, 0xa, 0, 4); STORE_BY_BITMASK(uint8_t, , 0x20000051, 0, 4, 4); *(uint16_t*)0x20000052 = 0xc; *(uint32_t*)0x20000054 = 0; *(uint8_t*)0x20000058 = 0x18; STORE_BY_BITMASK(uint8_t, , 0x20000059, 0, 0, 4); STORE_BY_BITMASK(uint8_t, , 0x20000059, 4, 4, 4); *(uint16_t*)0x2000005a = 0; *(uint32_t*)0x2000005c = 5; *(uint8_t*)0x20000060 = 0; *(uint8_t*)0x20000061 = 0; *(uint16_t*)0x20000062 = 0; *(uint32_t*)0x20000064 = 0; *(uint8_t*)0x20000068 = 0x85; STORE_BY_BITMASK(uint8_t, , 0x20000069, 0, 0, 4); STORE_BY_BITMASK(uint8_t, , 0x20000069, 1, 4, 4); *(uint16_t*)0x2000006a = 0; *(uint32_t*)0x2000006c = 0xfffffff9; *(uint64_t*)0x20000e10 = 0x20000080; memcpy((void*)0x20000080, "GPL\000", 4); *(uint32_t*)0x20000e18 = 3; *(uint32_t*)0x20000e1c = 0; *(uint64_t*)0x20000e20 = 0; *(uint32_t*)0x20000e28 = 0x41100; *(uint32_t*)0x20000e2c = 0x50; memset((void*)0x20000e30, 0, 16); *(uint32_t*)0x20000e40 = 0; *(uint32_t*)0x20000e44 = 0x21; *(uint32_t*)0x20000e48 = r[2]; *(uint32_t*)0x20000e4c = 8; *(uint64_t*)0x20000e50 = 0x20000100; *(uint32_t*)0x20000100 = 3; *(uint32_t*)0x20000104 = 5; *(uint32_t*)0x20000e58 = 8; *(uint32_t*)0x20000e5c = 0x10; *(uint64_t*)0x20000e60 = 0x20000140; *(uint32_t*)0x20000140 = 3; *(uint32_t*)0x20000144 = 9; *(uint32_t*)0x20000148 = 0x62; *(uint32_t*)0x2000014c = 0x5038; *(uint32_t*)0x20000e68 = 0x10; *(uint32_t*)0x20000e6c = r[3]; *(uint32_t*)0x20000e70 = r[4]; *(uint32_t*)0x20000e74 = 5; *(uint64_t*)0x20000e78 = 0x20000d40; *(uint32_t*)0x20000d40 = r[1]; *(uint32_t*)0x20000d44 = r[1]; *(uint32_t*)0x20000d48 = r[5]; *(uint64_t*)0x20000e80 = 0x20000d80; *(uint32_t*)0x20000d80 = 2; *(uint32_t*)0x20000d84 = 3; *(uint32_t*)0x20000d88 = 2; *(uint32_t*)0x20000d8c = 7; *(uint32_t*)0x20000d90 = 0; *(uint32_t*)0x20000d94 = 5; *(uint32_t*)0x20000d98 = 7; *(uint32_t*)0x20000d9c = 7; *(uint32_t*)0x20000da0 = 4; *(uint32_t*)0x20000da4 = 4; *(uint32_t*)0x20000da8 = 6; *(uint32_t*)0x20000dac = 0xa; *(uint32_t*)0x20000db0 = 2; *(uint32_t*)0x20000db4 = 5; *(uint32_t*)0x20000db8 = 7; *(uint32_t*)0x20000dbc = 7; *(uint32_t*)0x20000dc0 = 4; *(uint32_t*)0x20000dc4 = 1; *(uint32_t*)0x20000dc8 = 0xf; *(uint32_t*)0x20000dcc = 8; *(uint32_t*)0x20000e88 = 0x10; *(uint32_t*)0x20000e8c = 0x46f; syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x20000e00ul, /*size=*/0x90ul); memcpy((void*)0x20000000, "asymmetric\000", 11); memcpy((void*)0x20000240, "syz", 3); *(uint8_t*)0x20000243 = 0x21; *(uint8_t*)0x20000244 = 0; res = syscall(__NR_add_key, /*type=*/0x20000000ul, /*desc=*/0x20000240ul, /*payload=*/0ul, /*paylen=*/0ul, /*keyring=*/0xfffffff9); if (res != -1) r[6] = res; syscall(__NR_keyctl, /*code=*/0xbul, /*key=*/r[6], /*payload=*/0x20000300ul, /*len=*/0x44ul, 0); *(uint32_t*)0x200000c0 = 5; *(uint32_t*)0x200000c4 = 0xb; *(uint64_t*)0x200000c8 = 0x20000180; *(uint8_t*)0x20000180 = r[2]; *(uint64_t*)0x200000d0 = 0x20000200; memcpy((void*)0x20000200, "GPL\000", 4); *(uint32_t*)0x200000d8 = 0x4000004; *(uint32_t*)0x200000dc = 0; *(uint64_t*)0x200000e0 = 0; *(uint32_t*)0x200000e8 = 0x40f00; *(uint32_t*)0x200000ec = 0; memset((void*)0x200000f0, 0, 16); *(uint32_t*)0x20000100 = 0; *(uint32_t*)0x20000104 = 0x17; *(uint32_t*)0x20000108 = 0; *(uint32_t*)0x2000010c = 0; *(uint64_t*)0x20000110 = 0; *(uint32_t*)0x20000118 = 0; *(uint32_t*)0x2000011c = 0; *(uint64_t*)0x20000120 = 0; *(uint32_t*)0x20000128 = 0; *(uint32_t*)0x2000012c = r[3]; *(uint32_t*)0x20000130 = 0; *(uint32_t*)0x20000134 = 0; *(uint64_t*)0x20000138 = 0; *(uint64_t*)0x20000140 = 0; *(uint32_t*)0x20000148 = 0; *(uint32_t*)0x2000014c = 0; syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x200000c0ul, /*size=*/0x90ul); syscall(__NR_mlockall, /*flags=MCL_FUTURE|MCL_CURRENT*/ 3ul); *(uint32_t*)0x20000280 = 0x798e2636; *(uint32_t*)0x20000284 = 0; *(uint32_t*)0x20000288 = 0; *(uint32_t*)0x2000028c = 0; *(uint32_t*)0x20000290 = 0xee00; *(uint32_t*)0x20000294 = 0; *(uint16_t*)0x20000298 = 0; *(uint32_t*)0x2000029c = 0x80; *(uint64_t*)0x200002a0 = 0; *(uint64_t*)0x200002a8 = 0; *(uint64_t*)0x200002b0 = 0; *(uint32_t*)0x200002b8 = 0; *(uint32_t*)0x200002bc = 0; *(uint16_t*)0x200002c0 = 0; *(uint16_t*)0x200002c2 = 0; *(uint64_t*)0x200002c8 = 0; *(uint64_t*)0x200002d0 = 0; syscall(__NR_shmctl, /*shmid=*/0, /*cmd=*/1ul, /*buf=*/0x20000280ul); syscall(__NR_munmap, /*addr=*/0x20000000ul, /*len=*/0x400000ul); syscall(__NR_mmap, /*addr=*/0x20000000ul, /*len=*/0xa000ul, /*prot=PROT_GROWSDOWN|PROT_SEM|PROT_READ|PROT_EXEC*/ 0x100000dul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1, /*offset=*/0ul); syscall(__NR_mremap, /*addr=*/0x20000000ul, /*len=*/0xc00000ul, /*newlen=*/0x3000ul, /*flags=MREMAP_FIXED|MREMAP_MAYMOVE*/ 3ul, /*newaddr=*/0x20ffa000ul); return 0; }