// https://syzkaller.appspot.com/bug?id=c1047683a8f0f1b0e12907fdeaf03f7f4f17e8a5 // autogenerated by syzkaller (https://github.com/google/syzkaller) #define _GNU_SOURCE #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifndef __NR_io_uring_enter #define __NR_io_uring_enter 426 #endif #ifndef __NR_io_uring_setup #define __NR_io_uring_setup 425 #endif static __thread int clone_ongoing; static __thread int skip_segv; static __thread jmp_buf segv_env; static void segv_handler(int sig, siginfo_t* info, void* ctx) { if (__atomic_load_n(&clone_ongoing, __ATOMIC_RELAXED) != 0) { exit(sig); } uintptr_t addr = (uintptr_t)info->si_addr; const uintptr_t prog_start = 1 << 20; const uintptr_t prog_end = 100 << 20; int skip = __atomic_load_n(&skip_segv, __ATOMIC_RELAXED) != 0; int valid = addr < prog_start || addr > prog_end; if (skip && valid) { _longjmp(segv_env, 1); } exit(sig); } static void install_segv_handler(void) { struct sigaction sa; memset(&sa, 0, sizeof(sa)); sa.sa_handler = SIG_IGN; syscall(SYS_rt_sigaction, 0x20, &sa, NULL, 8); syscall(SYS_rt_sigaction, 0x21, &sa, NULL, 8); memset(&sa, 0, sizeof(sa)); sa.sa_sigaction = segv_handler; sa.sa_flags = SA_NODEFER | SA_SIGINFO; sigaction(SIGSEGV, &sa, NULL); sigaction(SIGBUS, &sa, NULL); } #define NONFAILING(...) \ ({ \ int ok = 1; \ __atomic_fetch_add(&skip_segv, 1, __ATOMIC_SEQ_CST); \ if (_setjmp(segv_env) == 0) { \ __VA_ARGS__; \ } else \ ok = 0; \ __atomic_fetch_sub(&skip_segv, 1, __ATOMIC_SEQ_CST); \ ok; \ }) static void sleep_ms(uint64_t ms) { usleep(ms * 1000); } static uint64_t current_time_ms(void) { struct timespec ts; if (clock_gettime(CLOCK_MONOTONIC, &ts)) exit(1); return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000; } static bool write_file(const char* file, const char* what, ...) { char buf[1024]; va_list args; va_start(args, what); vsnprintf(buf, sizeof(buf), what, args); va_end(args); buf[sizeof(buf) - 1] = 0; int len = strlen(buf); int fd = open(file, O_WRONLY | O_CLOEXEC); if (fd == -1) return false; if (write(fd, buf, len) != len) { int err = errno; close(fd); errno = err; return false; } close(fd); return true; } #define SIZEOF_IO_URING_SQE 64 #define SIZEOF_IO_URING_CQE 16 #define SQ_HEAD_OFFSET 0 #define SQ_TAIL_OFFSET 64 #define SQ_RING_MASK_OFFSET 256 #define SQ_RING_ENTRIES_OFFSET 264 #define SQ_FLAGS_OFFSET 276 #define SQ_DROPPED_OFFSET 272 #define CQ_HEAD_OFFSET 128 #define CQ_TAIL_OFFSET 192 #define CQ_RING_MASK_OFFSET 260 #define CQ_RING_ENTRIES_OFFSET 268 #define CQ_RING_OVERFLOW_OFFSET 284 #define CQ_FLAGS_OFFSET 280 #define CQ_CQES_OFFSET 320 struct io_sqring_offsets { uint32_t head; uint32_t tail; uint32_t ring_mask; uint32_t ring_entries; uint32_t flags; uint32_t dropped; uint32_t array; uint32_t resv1; uint64_t resv2; }; struct io_cqring_offsets { uint32_t head; uint32_t tail; uint32_t ring_mask; uint32_t ring_entries; uint32_t overflow; uint32_t cqes; uint64_t resv[2]; }; struct io_uring_params { uint32_t sq_entries; uint32_t cq_entries; uint32_t flags; uint32_t sq_thread_cpu; uint32_t sq_thread_idle; uint32_t features; uint32_t resv[4]; struct io_sqring_offsets sq_off; struct io_cqring_offsets cq_off; }; #define IORING_OFF_SQ_RING 0 #define IORING_OFF_SQES 0x10000000ULL static long syz_io_uring_setup(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { uint32_t entries = (uint32_t)a0; struct io_uring_params* setup_params = (struct io_uring_params*)a1; void** ring_ptr_out = (void**)a2; void** sqes_ptr_out = (void**)a3; uint32_t fd_io_uring = syscall(__NR_io_uring_setup, entries, setup_params); uint32_t sq_ring_sz = setup_params->sq_off.array + setup_params->sq_entries * sizeof(uint32_t); uint32_t cq_ring_sz = setup_params->cq_off.cqes + setup_params->cq_entries * SIZEOF_IO_URING_CQE; uint32_t ring_sz = sq_ring_sz > cq_ring_sz ? sq_ring_sz : cq_ring_sz; *ring_ptr_out = mmap(0, ring_sz, PROT_READ | PROT_WRITE, MAP_SHARED | MAP_POPULATE, fd_io_uring, IORING_OFF_SQ_RING); uint32_t sqes_sz = setup_params->sq_entries * SIZEOF_IO_URING_SQE; *sqes_ptr_out = mmap(0, sqes_sz, PROT_READ | PROT_WRITE, MAP_SHARED | MAP_POPULATE, fd_io_uring, IORING_OFF_SQES); uint32_t* array = (uint32_t*)((uintptr_t)*ring_ptr_out + setup_params->sq_off.array); for (uint32_t index = 0; index < entries; index++) array[index] = index; return fd_io_uring; } static long syz_io_uring_submit(volatile long a0, volatile long a1, volatile long a2) { char* ring_ptr = (char*)a0; char* sqes_ptr = (char*)a1; char* sqe = (char*)a2; uint32_t sq_ring_mask = *(uint32_t*)(ring_ptr + SQ_RING_MASK_OFFSET); uint32_t* sq_tail_ptr = (uint32_t*)(ring_ptr + SQ_TAIL_OFFSET); uint32_t sq_tail = *sq_tail_ptr & sq_ring_mask; char* sqe_dest = sqes_ptr + sq_tail * SIZEOF_IO_URING_SQE; memcpy(sqe_dest, sqe, SIZEOF_IO_URING_SQE); uint32_t sq_tail_next = *sq_tail_ptr + 1; __atomic_store_n(sq_tail_ptr, sq_tail_next, __ATOMIC_RELEASE); return 0; } static void kill_and_wait(int pid, int* status) { kill(-pid, SIGKILL); kill(pid, SIGKILL); for (int i = 0; i < 100; i++) { if (waitpid(-1, status, WNOHANG | __WALL) == pid) return; usleep(1000); } DIR* dir = opendir("/sys/fs/fuse/connections"); if (dir) { for (;;) { struct dirent* ent = readdir(dir); if (!ent) break; if (strcmp(ent->d_name, ".") == 0 || strcmp(ent->d_name, "..") == 0) continue; char abort[300]; snprintf(abort, sizeof(abort), "/sys/fs/fuse/connections/%s/abort", ent->d_name); int fd = open(abort, O_WRONLY); if (fd == -1) { continue; } if (write(fd, abort, 1) < 0) { } close(fd); } closedir(dir); } else { } while (waitpid(-1, status, __WALL) != pid) { } } static void setup_test() { prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0); setpgrp(); write_file("/proc/self/oom_score_adj", "1000"); } static void execute_one(void); #define WAIT_FLAGS __WALL static void loop(void) { int iter = 0; for (;; iter++) { int pid = fork(); if (pid < 0) exit(1); if (pid == 0) { setup_test(); execute_one(); exit(0); } int status = 0; uint64_t start = current_time_ms(); for (;;) { if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid) break; sleep_ms(1); if (current_time_ms() - start < 5000) continue; kill_and_wait(pid, &status); break; } } } uint64_t r[3] = {0xffffffffffffffff, 0x0, 0x0}; void execute_one(void) { intptr_t res = 0; NONFAILING(*(uint32_t*)0x20000084 = 0); NONFAILING(*(uint32_t*)0x20000088 = 0); NONFAILING(*(uint32_t*)0x2000008c = 0); NONFAILING(*(uint32_t*)0x20000090 = 0); NONFAILING(*(uint32_t*)0x20000098 = 0); NONFAILING(memset((void*)0x2000009c, 0, 12)); res = -1; NONFAILING(res = syz_io_uring_setup(/*entries=*/0xf00, /*params=*/0x20000080, /*ring_ptr=*/0x20000100, /*sqes_ptr=*/0x20000140)); if (res != -1) { r[0] = res; NONFAILING(r[1] = *(uint64_t*)0x20000100); NONFAILING(r[2] = *(uint64_t*)0x20000140); } NONFAILING(*(uint8_t*)0x20000000 = 0x17); NONFAILING(*(uint8_t*)0x20000001 = 0x24); NONFAILING(*(uint16_t*)0x20000002 = 0); NONFAILING(*(uint32_t*)0x20000004 = 1); NONFAILING(*(uint64_t*)0x20000008 = -1); NONFAILING(*(uint64_t*)0x20000010 = 0x20001380); NONFAILING(memcpy( (void*)0x20001380, "\xe8\x7c\xf0\x96\xeb\x2c\x85\x20\x55\xfd\x78\xa6\x25\xdf\x6f\x93\x27\x54" "\x3c\xa6\x28\x24\x5a\x9e\x20\x5f\x40\x26\x3a\x1d\xf0\x93\x96\xcb\xc8\x18" "\xbe\xc4\x9a\x1f\x0a\x31\xc1\xff\x21\xde\xd9\x91\xe6\x01\xe2\xc5\x4a\x67" "\x38\x43\x01\xf8\x4b\x63\xff\x46\xb9\x48\x3f\x97\x9c\x91\x60\xb1\x26\x2e" "\x5b\xc0\xec\x46\x48\x01\x59\xf8\xfe\x6b\xfe\xa6\x32\xaf\x1a\x8d\x37\xb6" "\xe3\x3c\x99\x22\x1d\x41\xaf\xcd\xbf\xc7\xa5\x65\x2c\x18\xaf\x53\x46\xf7" "\xa5\xb4\x36\xca\x83\xe0\x25\x53\xa6\x8a\xaa\x9c\xd3\x8c\xf7\xdd\x46\x0f" "\x46\xcc\xae\x0e\x96\x51\x89\x50\x21\x02\xc9\x95\x14\xd5\x69\x83\xa7\x1a" "\x6b\x5b\x06\x9f\x10\xa4\xc0\x2b\x22\xdc\xc2\x71\xc4\x06\x9c\xf5\xd4\xa9" "\x8d\x29\xf6\x63\x73\x41\xea\x2d\x15\xf5\xc7\x71\xdc\x75\xd6\x5a\x2d\x0c" "\xaa\x03\xf5\xe0\x25\x23\x94\xae\x45\x8d\xc9\x0d\xf4\x3f\xd2\x24\x4c\x20" 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"\xda\xf9\x64\x1d\x93\x94\x2e\x65\xb2\xc9\x95\xd8\x24\xe3\xe2\xd1\x39\x44" "\xfe\x7d\xbd\xc9\x50\x6f\x33\x32\x5a\xf0\x8d\x98\x3d\xd2\x28\xcf\xac\x36" "\x55\x0d\x4f\x87\xde\x9d\x94\xee\xa1\x69\xfc\xd6\xd0\x01\x14\xea\x08\x7c" "\x90\x40\xc9\x65\x96\x2c\xde\xaf\x5c\x0a\x82\x90\xcb\x88\x7c\x82\xb6\x27" "\x22\xc4\x07\xdc\xad\x90\x45\x04\x6f\x4e\xb4\x77\x94\xcd\xc3\xc3\x7c\x58" "\x84\xf0\x65\xe2\xbc\x80\x89\xc6\x14\x00\x95\x60\xaf\x1b\x2d\x13\xcb\x00" "\x0c\x5c\x80\x96\xe0\xd2\x98\xba\x2a\x05\x4f\xb9\x23\x43\x84\x7f\x2e\x2b" "\xdb\x62\x67\x8f\x52\x5e\xe6\xa0\x79\xae\x02\x40\x45\x29\x6c\x36\x6f\x1f" "\x2c\xb1\x27\x26\xd5\x25\x60\x8c\x89\x98\x83\x04\x08\x56\x74\x6b\x33\x3b" "\x4a\x7a\x59\x0f\xbe\xa0\xde\x21\x00\xc9\x54\x94\x9b\x98\xda\x9f\x68\x55" "\x18\xc8\x37\x92\x31\xe1\x6c\x0d\x05\x76\x8e\x22\x81\xa6\xe7\x16\x82\x3f" "\xb5\xf8\xae\xeb\x64\x49\xe5\xc3\x0c\xba\xb7\x63\x39\xb2\xc2\x8a\x4e\x4f" "\xbe\x2e\xea\xe0\x0d\x66\x4a\x10\xc4\x03\xf4\x19\x04\xcc\xb4\x10\xd3\x98" "\x0c\xe9\xf2\x52\x0f\x82\x34\xd1\xd1\x1b\x82\xa8\x85\xa3\xd8\xc6\xcd\x36" "\xc9\xc5\x1e\x47\xb9\x5c\x67\x17\xba\xf6\xee\xd0\x71\x8e\xc9\x0c\x8a\x7c" "\xff\x24\x56\xac\x96\x63\x08\x62\x98\x9c\x65\x18\x57\x18\x12\xcb\x1d\x80" "\x39\xb0\x23\x31\xa0\x14\xf5\x60\x5a\xa4\x96\x21\xf8\x9c\x29\x6a\x00\x02" "\xa1\xe9\x00\x63\x57\xd0\x40\x17\x2d\xae\x07\x57\x95\xe6\xf8\x90\x5f\x1a" "\x3e\x15\x23\x24\xa6\x34\x23\x0c\x5d\x4e\x82\x4a\x98\x62\xde\x5c\x73\x4f" "\x22\xf3\xb3\x2a\x36\x01\x95\xa8\xbd\xd6\x4b\xf9\x7c\x71\xc2\x7e\x98\x47" "\x4f\x74\x31\x0d\x6c\x11\x5c\x7e\x9a\x1f\xa6\x04\xfd\xfc\xcd\xc5\x9f\xd7" "\x81\xab\x8c\xe2\x32\xe5\x45\x39\xf0\xb1\xb9\xf2\x92\x32\x7e\x81\x62\x92" "\xff\x93\xf4\x4b\x57\xa3\xf6\xe6\x2b\x7b\x15\x02\x81\x46\xdd\xa0\x50\x8b" "\xb7\x27\xae\xe3\x8a\xdb\xc0\x59\xf9\x2a\x4c\xf6\x28\x33\xd0\x42\xe7\x31" "\xf1\xd3\x73\xdc\x03\x81\xb7\x3c\xbc\x73\x53\x18\xd4\x27\x5f\x59\xb2\xa5" "\xc0\xdb\xaf\x86\x31\x82\x94\x5d\xef\xd4\x06\x8c\x92\x0f\xeb\x8e\x53\xe5" "\xe4\x66\x56\x54\x6f\xfb\x30\x24\x15\xb3\x2f\x6f\x49\x20\xe9\x71\xd9\x98" "\x17\x44\x0a\xdf\x42\xc5\xef\x03\xdc\x88\x0c\x08\xfc\xf7\x7a\xed\x9e\x55" "\x0f\xea\x4f\x5b\xd4\x7a\xf7\xa7\xd3\xfd\xa2\xfb\x64\xb6\xb4\xc5\x13\x59" "\x56\x58\x14\x6d\x95\xb9\xf2\x90\x2d\xcc\xae\xed\xe5\x26\xc5\xab\x83\x98" "\xf5\x7d\xab\xd6\x0b\xd6\xc1\x8d\x7c\x1d\x31\x13\xd0\x24\x24\x64\x22\x68" "\x53\xa6\x6f\x3b\x5a\xb7\x66\x8d\x32\xc4\x8b\x7d\xc3\x79\x32\xad\x81\x27" "\xdf\x73\x15\x58\x2c\x17\x2e\x7c\xe5\x65\x7c\x30\x9b\xe1\x32\x10\x17\x49" "\x71\x4d\x4e\xa3\x16\xbe\xbf\xd3\xd1\x17\xef\xa2\xf5\x5d\x44\xfd\x7f\x71" "\xf1\xa1\xb5\xd4\xbc\x48\x02\x5a\xe5\x77", 4096)); NONFAILING(*(uint32_t*)0x20000018 = 0x1000); NONFAILING(*(uint32_t*)0x2000001c = 2); NONFAILING(*(uint64_t*)0x20000020 = 0); NONFAILING(*(uint16_t*)0x20000028 = 0); NONFAILING(*(uint16_t*)0x2000002a = 0); NONFAILING(memset((void*)0x2000002c, 0, 20)); NONFAILING(syz_io_uring_submit(/*ring_ptr=*/0, /*sqes_ptr=*/r[2], /*sqe=*/0x20000000)); NONFAILING(*(uint8_t*)0x20000180 = 2); NONFAILING(*(uint8_t*)0x20000181 = 8); NONFAILING(*(uint16_t*)0x20000182 = 0); NONFAILING(*(uint32_t*)0x20000184 = -1); NONFAILING(*(uint64_t*)0x20000188 = 0); NONFAILING(*(uint64_t*)0x20000190 = 0x20001300); NONFAILING(*(uint64_t*)0x20001300 = 0x200001c0); NONFAILING(memcpy( (void*)0x200001c0, "\x00\x35\x8e\xa4\x38\x2a\xf7\xff\xe9\x4a\x14\x2b\xf4\xb2\xef\xba\xc9\x09" "\xf3\x30\x48\x1d\x27\x55\x1a\xd0\x8c\x0d\xa4\x0c\xa0\xcd\xf2\x75\x3a\x0a" "\x0d\xe6\xd6\xda\xd7\x16\x20\xfc\xeb\xc1\xdf\xb9\xf0\xc7\xd6\x22\x28\xc5" "\x8c\x26\x82\x6b\x15\xf3\x0e\x99\xa5\x1b\x8d\xa8\xf1\x83\xb1\x9e\xff\x80" "\x61\x05\xaf\x0f\xa4\x71\x96\x53\x15\x7e\x63\x1d\xb3\xd2\x2a\xbb\xf3\x15" "\xbb\x69\x74\xe5\x88\x06\x96\x6e\xa7\xc5\x53\xfa\xba\x64\xd0\xa2\x06\x51" "\x9d\x24\x6f\x44\x7c\x13\x59\xd8\xff\xd3\xfa\x78\x2e\xc2\x68\x1f\x42\x9b" "\x37\x3f\xf0\x4b\xce\xd5\xb7\x3d\x94\x17\x00\x5c\x92\x93\x5c\x55\x10\x74" "\xab\x12\xad\x08\xe9\xb1\x3b\x89\xaa\x7f\xb2\xe5\xa1\xf1\x5e\x8f\xb5\x28" "\xbd\x6d\x87\xe4\x8c\xe3\xf9\xc4\xd6\xd5\xb1\x3c\x89\x24\x6c\x83\x77\x1f" "\xe3\x8b\x4d\x99\x6c\x34\xc7\x77\x37\xeb\x2d\x36\x10\x25\x0c\x9b\xee\x55" "\x6b\xac\x16\x61\xed\xa9\x25\xbe\xa2\x6c\x6e\xd2\x05\xf8\x16\xb1\x31\xb5" "\xe8\x54\xf4\x80\xdb\x29\x10\x5f\xcb\x2c\xb2\xbb\x19\x4b\xcb\x63\x3e\x5f" "\x66\x8d\xda\x64\x7e\x96\xd0\xda\x38\x60\xaf\x97\x2b\x9c\x0b\x62\x18\xdb" "\x29\x70\x0c\xc1\xfb\x20\x46\xf2\x89\xe7\x41\xce\x98\x54\x08\x1e\xde\xa6" "\x83\xa1\x94\xd9\x27\x03\x1b\x97\x24\x58\xf7\x5a\x97\x3c\xd2\x66\x02\xee" "\x85\x9d\x80\xd2\x9f\xd4\x2e\xcf\x6c\x4d\xd0\x03\x64\xa2\x8b\x8d\x0a\x33" "\xbf\xa8\x4e\x75\x82\x05\x8f\x1f\xca\x13\x6f\xc8\xcd\x2b\xd3\x63\x10\xd1" "\xf5\x1f\xd3\x68\x78\x1f\x7a\x80\x2e\x5d\xe6\x2d\xd1\xe9\xb2\x9a\x9f\xdd" "\x33\x23\x7b\x4f\xaf\x91\x85\x60\xe1\x7a\xc9\xd8\x90\x65\x7d\xf7\x40\xdc" "\x20\x3c\x1f\x31\xdb\x3f\x2c\x60\x06\x35\x1d\xf4\x62\x04\x22\x30\x32\xf3" "\x86\x4f\x31\x54\xfa\x6e\x40\xcc\x70\x17\x97\xc8\x11\x34\x6b\x26\xb7\xde" "\x9d\x8b\xc8\xc1\x99\x2d\x8c\x4d\x2a\xed\x67\xc0\x58\x5b\x8f\x84\x80\x8b" "\x76\xf3\x4b\xeb\xca\xa5\xb8\x92\x53\xd8\x92\xe3\xc4\xe0\x4f\x0e\xf7\x15" "\x49\xdd\x0a\x54\x34\x9e\x1e\x80\x28\x07\x1a\x6a\xac\x03\xbf\xe4\x3c\x68" "\x49\x7b\x79\x42\x43\xf0\x8a\x6e\x32\x9f\xa3\xd7\x34\xfd\xcb\xfa\x4c\xd9" "\xa0\x38\x3e\x45\x22\xa1\xb3\x29\x71\x05\xd8\x7e\xb6\xf5\xe0\x6a\xb5\x6a" "\x52\x0d\xbc\x20\xf9\x69\xec\x54\x40\xc1\x8c\xdb\x57\x5c\x49\x45\x3a\x36" "\x86\xca\x71\xac\xaa\x4b\xc3\xcb\x23\xfc\x65\x80\xc2\x6a\x42\x5b\x5b\x4b" "\x85\x9e\x91\x38\x71\xe6\x27\x87\x68\x2c\x62\xfd\xcc\x6a\x10\x71\x2c\xe3" "\xce\x53\x88\x21\xc4\x96\x55\x04\xb2\x2e\x91\xd9\x9c\xb8\x11\x49\x6d\x3b" "\x2e\xc1\x0d\x28\x88\x48\x39\x41\x1f\x43\x9c\xfa\x57\x65\xc2\xfa\x83\x1d" "\x62\x54\x9d\xa0\xa2\x00\x63\x4d\x5d\xad\x6a\x8b\x92\xdc\x34\xe2\x9e\x49" "\xdf\x75\xa6\x67\x90\xbc\xc0\x3c\x52\x7a\xdb\xc4\xfe\xe7\x63\x5f\x8e\xea" 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"\x1d\x77\xe1\x35\xd5\x7f\x3f\xed\x3d\x2b\x72\x19\x00\x3a\x71\xa8\x9a\x96" "\x0f\x80\xa1\x47\x2f\xf0\xae\x6b\x2f\x1e\x4c\x87\xb8\xf8\x55\x4d\x5f\x66" "\x6b\xf6\xc5\x83\x24\x1e\xfa\xce\x5d\x4e\xb6\x83\x30\xdc\xd9\x1a\xd0\x48" "\xdc\xf7\x0b\x73\x75\xba\xb9\x41\xca\x6d\x61\x1e\x29\x97\x75\xf0\x13\x5c" "\xb0\x9a\x02\x5f\xd1\x74\xbb\x71\xe9\xab\x56\x20\x03\xcd\x89\x18\x68\x00" "\xc2\xcf\x5d\x7b\x3c\x3b\x17\x0a\x95\x7d\x8d\x2f\x21\xa4\xa7\x19\xaa\x6b" "\x42\x2c\x15\x78\x85\x18\xe1\x44\x60\xb4\xa3\xa3\x50\x2d\x6a\x53\xd6\x20" "\x00\x39\x03\x64\x81\xad\x3f\x35\xc0\x78\x2a\xe4\x62\x46\x80\x57\x22\xe0" "\x91\x14\x37\x19\x9e\xf7\x84\x9b\x80\x8c\xb8\x54\x29\x24\x82\xac\x79\xce" "\x16\x0d\x69\x90\xf0\xdb\xa7\x6e\xc0\x20\xdd\x13\x57\x70\xda\xb7\x40\xbc" "\x75\x17\x8e\x30\x38\x33\xf0\x4c\xc6\x54\x66\x0b\x60\xc1\xca\x41\xe0\x8a" "\x6e\xca\x97\xeb\xff\x49\x72\xf1\xdb\x1f\xd7\xff\x7d\x99\xb8\x9c\x26\xc3" "\xf6\x2f\xd6\x68\x27\xe0\x6b\x76\x86\x9f\x4f\x38\x98\xab\x99\x8b\xa4\xfa" "\xb9\x90\xa3\x81\xe2\x68\x98\xe3\x7e\x79\xc1\x44\x9d\xb8\xe3\x00\x41\xde" "\x46\xce\xd2\x77\xb4\xa1\x86\x4d\xc1\xd6\x31\x3a\xbc\x0a\x19\x9d\x1f\xd8" "\xde\xab\xea\xe4\x9b\x8a\x82\x59\x70\x54\x91\x47\xc9\xda\x56\x7d\x7f\xa4" "\x68\x8c\x38\x1a\x31\x50\xe8\xdd\x2a\x7c\xaa\xa8\x60\x42\xf7\x8a\xc6\x1a" "\x1b\xb5\xfe\x31\xd0\xc6\xbd\xf9\x13\x13\x50\xa0\x6e\x64\x75\x65\xde\x30" "\x67\xb7\xa8\x3c\x28\x8a\x22\x88\x80\x38\x2d\x3e\x9a\xf9\x0b\xeb\xb5\x22" "\x98\xb2\xb3\x74\x2a\xb9\xe9\xca\xdf\xb1\x74\xea\x33\x94\x3f\xef\xf8\xc4" "\xf8\xce\xd7\xfa\x67\x59\x44\x4b\xd1\x08\x1a\x79\x51\x1e\x0e\xda\x02\xcb" "\xf9\x41\x5f\x4c\x1c\x4d\x5d\x9d\x25\xf6\x51\x6d\x6e\xb7\xe9\x66\x94\x32" "\xc8\xc4\x6b\x7b\x06\x70\x9c\x59\xaf\x1e\xb0\x73\x3c\x28\xa8\x73\xf2\x9b" "\x01\xc1\x23\x85\x40\x0b\x48\x88\x19\xbf\x1a\x9c\xdc\xf6\x54\x3c\x95\xa0" "\x56\x78\x54\xeb\xdc\xf9\x80\xf5\x76\x27\x56\xfe\x7f\x41\x15\x0b\x67\x8e" "\x1f\xb9\x88\x8f\x2f\x8e\x7d\x64\x85\xf6\x08\xc8\xe7\x21\xa5\x2a\xdc\xa5" "\x0e\xcf\x6c\xc6\x75\x93\xaf\x65\xd0\xae\xcf\xe6\x83\xb6\xb8\x4c\x6f\xf1" "\x85\x44\x37\x93\x24\x09\x60\x6d\x4f\x49\x87\xc5\xc9\x86\x0c\xd8\x73\xb4" "\xca\x14\xf0\x3d\x9c\x7e\x20\xb9\x33\xb7\x77\xf3\x79\xc9\xae\x0e\x7e\xb5" "\xbb\xe6\x7d\xab\xf1\xe8\x2c\x37\x9e\xfa\x42\xa7\x01\x16\xb2\x0e\x98\x48" "\x33\xcb\xb0\x28\xeb\x23\xd8\x55\x95\x66\x81\x33\xb1\xef\x45\x57\x1f\x18" "\x75\xc9\x0a\x01\xcb\x93\xb1\x5d\xbd\x1d\x80\xe6\x80\x55\x72\x47\xd3\x72" "\xc4\xdb\x8e\xc4\x9e\xf5\xb0\x4e\x31\xf0\x66\x53\xfd\x59\x6d\x65\xb0\x19" "\x52\x2c\x78\x3a\xe3\xcd\x20\x87\xba\x45\xab\xf8\x0b\x4a\xb6\x7c\x2f\xe0" "\x6a\xf4\x0f\xd6\xdd\x25\x8e\x2a\xf3\x5a\x73\x7a\x48\x83\x6a\xd5\xdb\x6e" "\xdf\xa7\x30\x28\xed\x24\x81\x20\x51\x9a\x99\x31\x6e\x86\x70\x16\xa2\x33" "\xf8\xfc\x99\x56\x8f\x15\xcf\x4d\x29\x36\xb7\xf6\x3e\x2d\x65\x7a\x2b\x5f" "\x21\x4d\x74\x92\x31\xcc\x9a\x30\x08\x12\x4a\xc2\x7b\x60\x0d\x3e\x88\x79" "\xe7\xae\x0c\xea\x6d\x7a\xa5\x43\xd8\xd2\xa1\x82\xc0\xdc\x6b\x39\x72\x90" "\x78\xac\xab\xec\xf5\xe1\x1a\xfe\x9e\x28\x0e\x20\x92\x98\x2b\x95\xba\x9a" "\x24\x48\xd3\x80\x6e\x2c\x33\x7f\xbb\xe7\xb7\x5c\x17\x08\x02\xea\x85\x27" "\xd7\x1b\xda\xcf\x48\x97\xab\xd7\xda\x30\xbc\xf2\x8e\x61\xfa\xba\xd0\x57" "\x43\xf4\x8d\x05\xd1\xf0\xe7\x4e\x2d\xe2\x1a\xc8\x18\x9e\xd2\x32\x17\xfd" "\xb3\x1b\x22\x8b\x34\xce\x50\xf4\xee\xfb\x71\x73\x73\xed\x0a\x07\xf9\xe7" "\x41\x6f\x02\x81\x3a\xe4\xb7\x51\xaa\xf7\x79\x7f\x84\xb0\x71\x98\x01\xb1" "\x57\x0a\x39\x0e\xeb\x87\x28\x68\xbc\x90\xf1\xbc\x29\x77\x62\x87\x57\x6c" "\x38\x8a\x8f\xfb\x68\x59\x39\x64\x3e\x4b\xe9\x61\x17\x3a\x76\x24\xd6\x54" "\xaf\x6c\x56\x42\x55\x4f\x08\x3b\xad\x94\x4e\x73\xce\xad\x21\xcf\xd0\x21" "\x06\x37\x67\x13\x03\xaa\x74\xa0\xd7\x3a\x25\xda\x1e\x89\xa3\xf5\x2f\x51" "\x06\xb2\x39\xdb\x49\xa1\x1d\xa6\xff\xe4\xa7\x73\xff\xdb\x07\x80\x9e\x9c" "\x25\xc3\x4b\x0a\x23\xdb\xd0\x4e\x66\x78\xaa\x18\xb4\xb4\xe6\x6d\xb7\x40" "\xdc\x60\x2c\x0c\x10\xea\xf6\xfd\x7a\x45\xb2\x08\x67\x1f\xad\xe6\x6a\x8d" "\x04\x4d\xe7\xa2\x86\xa1\xd1\xcc\xc6\xa5\x1c\xbd\x34\xe2\x75\x2f\xd4\x38" "\xf8\x71\x44\xc7\x5f\x81\xd4\xa0\x0e\xe5\x32\xd0\x96\x99\x51\x98\xd6\xd3" "\x92\xb7\xdc\x49\xb4\xc6\x66\x46\x00\x29\xd9\xa1\xf3\x07\x62\xf2\xe5\x48" "\xe2\x17\x37\x49\x3f\x24\xee\xdc\xe3\x1d\xe6\x4f\x1a\x7f\x20\x82\x83\x08" "\x5a\x22\x80\x86\x3a\x8a\x42\x84\xc0\x54\x4a\xcc\xcb\xbd\xb4\xb2\xe6\x3a" "\xc5\x18\xe0\x5d\xb3\xa8\xa2\xad\xe7\x3c\x8a\xc2\x83\x71\x40\x6c\x89\xaf" "\x2c\x97\xf2\x29\x42\x78\x89\xb4\x0f\x65\x00\x55\x8a\x91\x2d\xfc\x7d\x3a" "\x95\x77\x4c\xc7\x66\x0a\x4a\x22\x05\x5d\x7c\x86\x9c\x87\x4f\xf1\x76\xe7" "\x2c\xb1\x17\x27\xb8\x09\xf4\x6e\x3e\xe0\xb5\x2c\x82\x76\x01\x61\x0a\x86" "\x90\xb7\xda\x87\xd4\x17\xc0\x32\xe0\x45\x3c\xb2\xff\xb3\x76\x07\x77\x13" "\xa3\xf7\x0e\xe2\x23\xcd\x36\xce\x19\xb6\x4a\x2c\x49\x09\x59\x4c\x59\x12" "\xb8\xfd\x59\xa5\x32\xa9\xbb\x04\xc0\x27", 4096)); NONFAILING(*(uint64_t*)0x20001308 = 0x1000); NONFAILING(*(uint64_t*)0x20001310 = 0x200011c0); NONFAILING(memcpy( (void*)0x200011c0, "\x58\xa6\xce\xb1\x8e\x18\x07\xa7\x9c\x18\xbb\x0e\xfb\x90\x62\xfe\x1f\xfd" "\x1c\x3c\x09\xdd\xd3\x13\x4f\xfa\xe3\xe0\xcc\xf0\xa4\x30\x42\x95\x39\xeb" "\x6e\xf4\x43\x78\x84\x62\x67\x8e\x0e\x50\x93\x5f\x0d\x44\x64\x63\x2b\x5f" "\x05\x34\xdf\x5a\x90\xb4\x8a\x15\xbf\x93\x92\x9a\x91\xec\x88\x48\xf6\x85" "\x87\xb1\x44\xb9\x52\x54\x62\x62\xec\xcc\xb8\x41\xa7\x05\x3f\x76\xe9\x54" "\x12\x77\xc7\xc1\x3e\xbc\x58\xf4\xe4\x52\x76\x7a\x23\x4c\xd6\x5c\xa2\x5c" "\xd2\x9d\x8d\x5e\xf1\x08\xb4\x95\x0c\x4e\xef\x3f\x7d\x52\x53\x57\x0f\x7c" "\x07\x9d\x8e\x12", 130)); NONFAILING(*(uint64_t*)0x20001318 = 0x82); NONFAILING(*(uint64_t*)0x20001320 = 0x20000040); NONFAILING( memcpy((void*)0x20000040, "\x39\x62\x35\xca\x49\xb5\xeb\x50\xc3\x48\xcd\x32\x7a\xd8\xa8\x22" "\x2c\x8c\x7e\x9e\xeb\x81\xdf\x74\x84\x0e\xe7\x5a\xcd", 29)); NONFAILING(*(uint64_t*)0x20001328 = 0x1d); NONFAILING(*(uint64_t*)0x20001330 = 0x20001280); NONFAILING(memcpy((void*)0x20001280, "\x5e\x36\x4e\xa4\xae\xcb\xbf\x00\x4a\xd5\x11\xb4\x49\xca" "\x00\x57\x97\x89\x22\xbe\x06\xe2\xd3\x1a\x47", 25)); NONFAILING(*(uint64_t*)0x20001338 = 0x19); NONFAILING(*(uint64_t*)0x20001340 = 0x200012c0); NONFAILING(memcpy((void*)0x200012c0, "\x0e\x38\xf9\x20\x10\x7c\xd2\x51\xf2\xd5\xbe\x9a\xf5\x4f" "\xec\xb5\x93\x64\xf7\x42\xf0\xce\x22\x3e\xaa\xd5\xc7\x07" "\x91\xf3\x7f\x56\x96\xbb\x41\xd5\x12\x9e\x8c\x9c\x4b", 41)); NONFAILING(*(uint64_t*)0x20001348 = 0x29); NONFAILING(*(uint32_t*)0x20000198 = 0xc); NONFAILING(*(uint32_t*)0x2000019c = 0x10); NONFAILING(*(uint64_t*)0x200001a0 = 1); NONFAILING(*(uint16_t*)0x200001a8 = 1); NONFAILING(*(uint16_t*)0x200001aa = 0); NONFAILING(memset((void*)0x200001ac, 0, 20)); NONFAILING(syz_io_uring_submit(/*ring_ptr=*/r[1], /*sqes_ptr=*/r[2], /*sqe=*/0x20000180)); syscall(__NR_io_uring_enter, /*fd=*/r[0], /*to_submit=*/2, /*min_complete=*/0, /*flags=*/0ul, /*sigmask=*/0ul, /*size=*/0ul); } int main(void) { syscall(__NR_mmap, /*addr=*/0x1ffff000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=*/0x32ul, /*fd=*/-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x20000000ul, /*len=*/0x1000000ul, /*prot=*/7ul, /*flags=*/0x32ul, /*fd=*/-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x21000000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=*/0x32ul, /*fd=*/-1, /*offset=*/0ul); install_segv_handler(); loop(); return 0; }