// https://syzkaller.appspot.com/bug?id=df4f17e2c28d3dea6a0ff7598304e55f5ebe292a // autogenerated by syzkaller (https://github.com/google/syzkaller) #define _GNU_SOURCE #include <endian.h> #include <stdint.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <sys/syscall.h> #include <sys/types.h> #include <unistd.h> #ifndef __NR_bpf #define __NR_bpf 321 #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[2] = {0xffffffffffffffff, 0xffffffffffffffff}; int main(void) { syscall(__NR_mmap, /*addr=*/0x3ffffffff000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x400000000000ul, /*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=*/0x400001000000ul, /*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*)0x4000000000c0 = 0; *(uint32_t*)0x4000000000c4 = 0xc; *(uint64_t*)0x4000000000c8 = 0x400000000440; *(uint8_t*)0x400000000440 = 0x18; STORE_BY_BITMASK(uint8_t, , 0x400000000441, 0, 0, 4); STORE_BY_BITMASK(uint8_t, , 0x400000000441, 0, 4, 4); *(uint16_t*)0x400000000442 = 0; *(uint32_t*)0x400000000444 = 0; *(uint8_t*)0x400000000448 = 0; *(uint8_t*)0x400000000449 = 0; *(uint16_t*)0x40000000044a = 0; *(uint32_t*)0x40000000044c = 0; *(uint8_t*)0x400000000450 = 0x18; STORE_BY_BITMASK(uint8_t, , 0x400000000451, 1, 0, 4); STORE_BY_BITMASK(uint8_t, , 0x400000000451, 1, 4, 4); *(uint16_t*)0x400000000452 = 0; *(uint32_t*)0x400000000454 = -1; *(uint8_t*)0x400000000458 = 0; *(uint8_t*)0x400000000459 = 0; *(uint16_t*)0x40000000045a = 0; *(uint32_t*)0x40000000045c = 0; STORE_BY_BITMASK(uint8_t, , 0x400000000460, 7, 0, 3); STORE_BY_BITMASK(uint8_t, , 0x400000000460, 0, 3, 1); STORE_BY_BITMASK(uint8_t, , 0x400000000460, 0xb, 4, 4); STORE_BY_BITMASK(uint8_t, , 0x400000000461, 8, 0, 4); STORE_BY_BITMASK(uint8_t, , 0x400000000461, 0, 4, 4); *(uint16_t*)0x400000000462 = 0; *(uint32_t*)0x400000000464 = 0; STORE_BY_BITMASK(uint8_t, , 0x400000000468, 3, 0, 3); STORE_BY_BITMASK(uint8_t, , 0x400000000468, 3, 3, 2); STORE_BY_BITMASK(uint8_t, , 0x400000000468, 3, 5, 3); STORE_BY_BITMASK(uint8_t, , 0x400000000469, 0xa, 0, 4); STORE_BY_BITMASK(uint8_t, , 0x400000000469, 8, 4, 4); *(uint16_t*)0x40000000046a = 0xfff8; *(uint32_t*)0x40000000046c = 0; STORE_BY_BITMASK(uint8_t, , 0x400000000470, 7, 0, 3); STORE_BY_BITMASK(uint8_t, , 0x400000000470, 1, 3, 1); STORE_BY_BITMASK(uint8_t, , 0x400000000470, 0xb, 4, 4); STORE_BY_BITMASK(uint8_t, , 0x400000000471, 2, 0, 4); STORE_BY_BITMASK(uint8_t, , 0x400000000471, 0xa, 4, 4); *(uint16_t*)0x400000000472 = 0; *(uint32_t*)0x400000000474 = 0; STORE_BY_BITMASK(uint8_t, , 0x400000000478, 7, 0, 3); STORE_BY_BITMASK(uint8_t, , 0x400000000478, 0, 3, 1); STORE_BY_BITMASK(uint8_t, , 0x400000000478, 0, 4, 4); STORE_BY_BITMASK(uint8_t, , 0x400000000479, 2, 0, 4); STORE_BY_BITMASK(uint8_t, , 0x400000000479, 0, 4, 4); *(uint16_t*)0x40000000047a = 0; *(uint32_t*)0x40000000047c = 0xfffffff8; STORE_BY_BITMASK(uint8_t, , 0x400000000480, 7, 0, 3); STORE_BY_BITMASK(uint8_t, , 0x400000000480, 0, 3, 1); STORE_BY_BITMASK(uint8_t, , 0x400000000480, 0xb, 4, 4); STORE_BY_BITMASK(uint8_t, , 0x400000000481, 3, 0, 4); STORE_BY_BITMASK(uint8_t, , 0x400000000481, 0, 4, 4); *(uint16_t*)0x400000000482 = 0; *(uint32_t*)0x400000000484 = 8; STORE_BY_BITMASK(uint8_t, , 0x400000000488, 7, 0, 3); STORE_BY_BITMASK(uint8_t, , 0x400000000488, 0, 3, 1); STORE_BY_BITMASK(uint8_t, , 0x400000000488, 0xb, 4, 4); STORE_BY_BITMASK(uint8_t, , 0x400000000489, 4, 0, 4); STORE_BY_BITMASK(uint8_t, , 0x400000000489, 0, 4, 4); *(uint16_t*)0x40000000048a = 0; *(uint32_t*)0x40000000048c = 0; *(uint8_t*)0x400000000490 = 0x85; *(uint8_t*)0x400000000491 = 0; *(uint16_t*)0x400000000492 = 0; *(uint32_t*)0x400000000494 = 3; *(uint8_t*)0x400000000498 = 0x95; *(uint8_t*)0x400000000499 = 0; *(uint16_t*)0x40000000049a = 0; *(uint32_t*)0x40000000049c = 0; *(uint64_t*)0x4000000000d0 = 0; *(uint32_t*)0x4000000000d8 = 0; *(uint32_t*)0x4000000000dc = 0; *(uint64_t*)0x4000000000e0 = 0; *(uint32_t*)0x4000000000e8 = 0; *(uint32_t*)0x4000000000ec = 0; memset((void*)0x4000000000f0, 0, 16); *(uint32_t*)0x400000000100 = 0; *(uint32_t*)0x400000000104 = 0; *(uint32_t*)0x400000000108 = -1; *(uint32_t*)0x40000000010c = 0; *(uint64_t*)0x400000000110 = 0; *(uint32_t*)0x400000000118 = 0; *(uint32_t*)0x40000000011c = 0; *(uint64_t*)0x400000000120 = 0; *(uint32_t*)0x400000000128 = 0; *(uint32_t*)0x40000000012c = 0; *(uint32_t*)0x400000000130 = 0; *(uint32_t*)0x400000000134 = 0; *(uint64_t*)0x400000000138 = 0; *(uint64_t*)0x400000000140 = 0; *(uint32_t*)0x400000000148 = 0; *(uint32_t*)0x40000000014c = 0; *(uint32_t*)0x400000000150 = 0; syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x4000000000c0ul, /*size=*/0x90ul); *(uint32_t*)0x4000000000c0 = 0x1b; *(uint32_t*)0x4000000000c4 = 0; *(uint32_t*)0x4000000000c8 = 0; *(uint32_t*)0x4000000000cc = 0x8000; *(uint32_t*)0x4000000000d0 = 0; *(uint32_t*)0x4000000000d4 = -1; *(uint32_t*)0x4000000000d8 = 0; memset((void*)0x4000000000dc, 0, 16); *(uint32_t*)0x4000000000ec = 0; *(uint32_t*)0x4000000000f0 = -1; *(uint32_t*)0x4000000000f4 = 0; *(uint32_t*)0x4000000000f8 = 0; *(uint32_t*)0x4000000000fc = 0; *(uint64_t*)0x400000000100 = 0; *(uint32_t*)0x400000000108 = 0; *(uint32_t*)0x40000000010c = 0; res = syscall(__NR_bpf, /*cmd=*/0ul, /*arg=*/0x4000000000c0ul, /*size=*/0x48ul); if (res != -1) r[0] = res; *(uint32_t*)0x4000000000c0 = 0; *(uint32_t*)0x4000000000c4 = 0xc; *(uint64_t*)0x4000000000c8 = 0x400000000440; memcpy((void*)0x400000000440, "\x18\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x18" "\x12\x00\x00", 20); *(uint32_t*)0x400000000454 = r[0]; memcpy((void*)0x400000000458, "\x00\x00\x00\x00\x00\x00\x00\x00\xb7\x08\x00\x00\x00\x00\x00\x00\x7b" "\x8a\xf8\xff\x00\x00\x00\x00\xbf\xa2\x00\x00\x00\x00\x00\x00\x07\x02" "\x00\x00\xf8\xff\xff\xff\xb7\x03\x00\x00\x08\x00\x00\x00\xb7\x04\x00" "\x00\xf6\x00\x00\x00\x85\x00\x00\x00\x43", 61); *(uint64_t*)0x4000000000d0 = 0; *(uint32_t*)0x4000000000d8 = 0; *(uint32_t*)0x4000000000dc = 0; *(uint64_t*)0x4000000000e0 = 0; *(uint32_t*)0x4000000000e8 = 0; *(uint32_t*)0x4000000000ec = 0; memset((void*)0x4000000000f0, 0, 16); *(uint32_t*)0x400000000100 = 0; *(uint32_t*)0x400000000104 = 0; *(uint32_t*)0x400000000108 = -1; *(uint32_t*)0x40000000010c = 0; *(uint64_t*)0x400000000110 = 0; *(uint32_t*)0x400000000118 = 0; *(uint32_t*)0x40000000011c = 0; *(uint64_t*)0x400000000120 = 0; *(uint32_t*)0x400000000128 = 0; *(uint32_t*)0x40000000012c = 0; *(uint32_t*)0x400000000130 = 0; *(uint32_t*)0x400000000134 = 0; *(uint64_t*)0x400000000138 = 0; *(uint64_t*)0x400000000140 = 0; *(uint32_t*)0x400000000148 = 0; *(uint32_t*)0x40000000014c = 0; *(uint32_t*)0x400000000150 = 0; syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x4000000000c0ul, /*size=*/0x90ul); *(uint32_t*)0x4000000000c0 = 0x1f; *(uint32_t*)0x4000000000c4 = 0xc; *(uint64_t*)0x4000000000c8 = 0x400000000440; *(uint64_t*)0x4000000000d0 = 0x400000000240; memcpy((void*)0x400000000240, "GPL\000", 4); *(uint32_t*)0x4000000000d8 = 0; *(uint32_t*)0x4000000000dc = 0; *(uint64_t*)0x4000000000e0 = 0; *(uint32_t*)0x4000000000e8 = 0; *(uint32_t*)0x4000000000ec = 0x12; memset((void*)0x4000000000f0, 0, 16); *(uint32_t*)0x400000000100 = 0; *(uint32_t*)0x400000000104 = 0; *(uint32_t*)0x400000000108 = -1; *(uint32_t*)0x40000000010c = 0; *(uint64_t*)0x400000000110 = 0; *(uint32_t*)0x400000000118 = 0; *(uint32_t*)0x40000000011c = 0; *(uint64_t*)0x400000000120 = 0; *(uint32_t*)0x400000000128 = 0; *(uint32_t*)0x40000000012c = 0; *(uint32_t*)0x400000000130 = 0; *(uint32_t*)0x400000000134 = 0; *(uint64_t*)0x400000000138 = 0; *(uint64_t*)0x400000000140 = 0; *(uint32_t*)0x400000000148 = 0; *(uint32_t*)0x40000000014c = 0; *(uint32_t*)0x400000000150 = 0; res = syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x4000000000c0ul, /*size=*/0x90ul); if (res != -1) r[1] = res; *(uint32_t*)0x400000000740 = r[1]; *(uint32_t*)0x400000000744 = 0; *(uint64_t*)0x400000000748 = 0; syscall(__NR_bpf, /*cmd=*/0xaul, /*arg=*/0x400000000740ul, /*size=*/0x10ul); return 0; }