./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3967833321 <...> Warning: Permanently added '10.128.0.168' (ED25519) to the list of known hosts. execve("./syz-executor3967833321", ["./syz-executor3967833321"], 0x7ffc7b4d33d0 /* 10 vars */) = 0 brk(NULL) = 0x555556d3d000 brk(0x555556d3dd00) = 0x555556d3dd00 arch_prctl(ARCH_SET_FS, 0x555556d3d380) = 0 set_tid_address(0x555556d3d650) = 5039 set_robust_list(0x555556d3d660, 24) = 0 rseq(0x555556d3dca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3967833321", 4096) = 28 getrandom("\x98\x8b\xbf\x6f\xa5\x96\x7c\x27", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555556d3dd00 brk(0x555556d5ed00) = 0x555556d5ed00 brk(0x555556d5f000) = 0x555556d5f000 mprotect(0x7f8af8def000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 io_uring_setup(5522, {flags=IORING_SETUP_COOP_TASKRUN|0x10000, sq_thread_cpu=0, sq_thread_idle=795, sq_entries=8192, cq_entries=16384, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|0x2000, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40}}) = 3 mmap(NULL, 262208, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 3, 0) = 0x7f8af8d02000 mmap(NULL, 524288, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 3, 0x10000000) = 0x7f8af8c82000 socket(AF_ALG, SOCK_SEQPACKET, 0) = 4 [ 72.556494][ T5039] ================================================================================ [ 72.566044][ T5039] UBSAN: array-index-out-of-bounds in io_uring/net.c:189:55 [ 72.573702][ T5039] index 3779567444058 is out of range for type 'iovec [8]' [ 72.580996][ T5039] CPU: 1 PID: 5039 Comm: syz-executor396 Not tainted 6.6.0-rc1-syzkaller #0 [ 72.589789][ T5039] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023 [ 72.600036][ T5039] Call Trace: [ 72.603335][ T5039] [ 72.606457][ T5039] dump_stack_lvl+0x125/0x1b0 [ 72.611138][ T5039] __ubsan_handle_out_of_bounds+0x111/0x150 [ 72.617054][ T5039] io_setup_async_msg+0x2a0/0x2b0 [ 72.622084][ T5039] io_recvmsg+0x169f/0x2170 [ 72.626592][ T5039] ? kmem_cache_alloc_bulk+0x40c/0x7c0 [ 72.632355][ T5039] ? __io_alloc_req_refill+0x285/0x710 [ 72.637821][ T5039] ? __do_sys_io_uring_enter+0x14ea/0x2650 [ 72.643733][ T5039] ? do_syscall_64+0x38/0xb0 [ 72.648330][ T5039] ? entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 72.654914][ T5039] ? io_recvmsg_prep+0x5c0/0x5c0 [ 72.659964][ T5039] ? __fget_files+0x279/0x410 [ 72.664653][ T5039] ? rcu_is_watching+0x12/0xb0 [ 72.669584][ T5039] io_issue_sqe+0x54a/0xd80 [ 72.674280][ T5039] io_submit_sqes+0x96c/0x1ed0 [ 72.679145][ T5039] __do_sys_io_uring_enter+0x14ea/0x2650 [ 72.684791][ T5039] ? io_submit_sqes+0x1ed0/0x1ed0 [ 72.689809][ T5039] ? lock_release+0x4bf/0x680 [ 72.694572][ T5039] ? ptrace_notify+0xf4/0x130 [ 72.699239][ T5039] ? reacquire_held_locks+0x4b0/0x4b0 [ 72.704623][ T5039] ? rcu_is_watching+0x12/0xb0 [ 72.709376][ T5039] ? trace_irq_enable.constprop.0+0xd0/0x100 [ 72.715445][ T5039] ? _raw_spin_unlock_irq+0x2e/0x50 [ 72.721593][ T5039] ? ptrace_notify+0xf4/0x130 [ 72.726437][ T5039] do_syscall_64+0x38/0xb0 [ 72.730863][ T5039] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 72.736763][ T5039] RIP: 0033:0x7f8af8d7c4e9 [ 72.741315][ T5039] Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 72.761299][ T5039] RSP: 002b:00007fff24b82fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000001aa [ 72.769859][ T5039] RAX: ffffffffffffffda RBX: 0000000000001592 RCX: 00007f8af8d7c4e9 [ 72.778191][ T5039] RDX: 0000000000000000 RSI: 0000000000007689 RDI: 0000000000000003 [ 72.786202][ T5039] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 72.794523][ T5039] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 72.803443][ T5039] R13: 00007fff24b83188 R14: 0000000000000001 R15: 0000000000000001 [ 72.811695][ T5039] [ 72.815674][ T5039] ================================================================================ [ 72.825980][ T5039] Kernel panic - not syncing: UBSAN: panic_on_warn set ... [ 72.833183][ T5039] CPU: 1 PID: 5039 Comm: syz-executor396 Not tainted 6.6.0-rc1-syzkaller #0 [ 72.841936][ T5039] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023 [ 72.852088][ T5039] Call Trace: [ 72.855471][ T5039] [ 72.858593][ T5039] dump_stack_lvl+0xd9/0x1b0 [ 72.863220][ T5039] panic+0x6a6/0x750 [ 72.867513][ T5039] ? panic_smp_self_stop+0xa0/0xa0 [ 72.873208][ T5039] ? syslog_print_all+0x3f0/0x3f0 [ 72.878282][ T5039] check_panic_on_warn+0xab/0xb0 [ 72.883372][ T5039] __ubsan_handle_out_of_bounds+0x139/0x150 [ 72.889434][ T5039] io_setup_async_msg+0x2a0/0x2b0 [ 72.894904][ T5039] io_recvmsg+0x169f/0x2170 [ 72.899410][ T5039] ? kmem_cache_alloc_bulk+0x40c/0x7c0 [ 72.905071][ T5039] ? __io_alloc_req_refill+0x285/0x710 [ 72.910759][ T5039] ? __do_sys_io_uring_enter+0x14ea/0x2650 [ 72.916664][ T5039] ? do_syscall_64+0x38/0xb0 [ 72.921403][ T5039] ? entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 72.927590][ T5039] ? io_recvmsg_prep+0x5c0/0x5c0 [ 72.932560][ T5039] ? __fget_files+0x279/0x410 [ 72.937309][ T5039] ? rcu_is_watching+0x12/0xb0 [ 72.942067][ T5039] io_issue_sqe+0x54a/0xd80 [ 72.946588][ T5039] io_submit_sqes+0x96c/0x1ed0 [ 72.951346][ T5039] __do_sys_io_uring_enter+0x14ea/0x2650 [ 72.956992][ T5039] ? io_submit_sqes+0x1ed0/0x1ed0 [ 72.962019][ T5039] ? lock_release+0x4bf/0x680 [ 72.966786][ T5039] ? ptrace_notify+0xf4/0x130 [ 72.971475][ T5039] ? reacquire_held_locks+0x4b0/0x4b0 [ 72.977053][ T5039] ? rcu_is_watching+0x12/0xb0 [ 72.982112][ T5039] ? trace_irq_enable.constprop.0+0xd0/0x100 [ 72.988175][ T5039] ? _raw_spin_unlock_irq+0x2e/0x50 [ 72.993389][ T5039] ? ptrace_notify+0xf4/0x130 [ 72.998174][ T5039] do_syscall_64+0x38/0xb0 [ 73.002711][ T5039] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 73.008618][ T5039] RIP: 0033:0x7f8af8d7c4e9 [ 73.013128][ T5039] Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 73.032746][ T5039] RSP: 002b:00007fff24b82fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000001aa [ 73.041261][ T5039] RAX: ffffffffffffffda RBX: 0000000000001592 RCX: 00007f8af8d7c4e9 [ 73.049506][ T5039] RDX: 0000000000000000 RSI: 0000000000007689 RDI: 0000000000000003 [ 73.057733][ T5039] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 73.065891][ T5039] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 73.074042][ T5039] R13: 00007fff24b83188 R14: 0000000000000001 R15: 0000000000000001 [ 73.082201][ T5039] [ 73.085488][ T5039] Kernel Offset: disabled [ 73.090071][ T5039] Rebooting in 86400 seconds..