./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor14129942 <...> Warning: Permanently added '10.128.1.122' (ECDSA) to the list of known hosts. execve("./syz-executor14129942", ["./syz-executor14129942"], 0x7ffd8f033e00 /* 10 vars */) = 0 brk(NULL) = 0x555556c7c000 brk(0x555556c7cc40) = 0x555556c7cc40 arch_prctl(ARCH_SET_FS, 0x555556c7c300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor14129942", 4096) = 26 brk(0x555556c9dc40) = 0x555556c9dc40 brk(0x555556c9e000) = 0x555556c9e000 mprotect(0x7fef1ec3d000, 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 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5234 attached , child_tidptr=0x555556c7c5d0) = 5234 [pid 5234] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5234] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5234] setsid() = 1 [pid 5234] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5234] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5234] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5234] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5234] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5234] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5234] unshare(CLONE_NEWNS) = 0 [pid 5234] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5234] unshare(CLONE_NEWIPC) = 0 [pid 5234] unshare(CLONE_NEWCGROUP) = 0 [pid 5234] unshare(CLONE_NEWUTS) = 0 [pid 5234] unshare(CLONE_SYSVSEM) = 0 [pid 5234] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5234] write(3, "16777216", 8) = 8 [pid 5234] close(3) = 0 [pid 5234] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5234] write(3, "536870912", 9) = 9 [pid 5234] close(3) = 0 [pid 5234] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5234] write(3, "1024", 4) = 4 [pid 5234] close(3) = 0 [pid 5234] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5234] write(3, "8192", 4) = 4 [pid 5234] close(3) = 0 [pid 5234] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5234] write(3, "1024", 4) = 4 [pid 5234] close(3) = 0 [pid 5234] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5234] write(3, "1024", 4) = 4 [pid 5234] close(3) = 0 [pid 5234] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5234] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5234] close(3) = 0 [pid 5234] getpid() = 1 [pid 5234] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b 4d 89 ef e9 35 fd ff ff e8 67 ad 56 fe e8 c2 54 da fd e9 c6 [ 54.773093][ T5234] RSP: 0018:ffffc90003c2f570 EFLAGS: 00010293 [ 54.779227][ T5234] RAX: 0000000000000000 RBX: ffff888023a77a80 RCX: 0000000000000000 [ 54.787285][ T5234] RDX: ffff88801dd99d40 RSI: ffffffff8326229a RDI: 0000000000000006 [ 54.795434][ T5234] RBP: ffffc90003c2f618 R08: 0000000000000006 R09: 00000026ae000002 [ 54.803442][ T5234] R10: 0000000000000003 R11: 0000000000000000 R12: ffff888073098158 [ 54.812555][ T5234] R13: 0000000000000003 R14: ffffc90003c2f630 R15: 00000026ae000002 [ 54.820681][ T5234] FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 [ 54.829831][ T5234] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 54.836505][ T5234] CR2: 000055cb6b56fd28 CR3: 000000007a756000 CR4: 00000000003506e0 [ 54.844786][ T5234] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 54.853047][ T5234] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 54.861163][ T5234] Call Trace: [ 54.864590][ T5234] [ 54.867532][ T5234] nilfs_dat_commit_update+0x26/0x40 [ 54.872935][ T5234] nilfs_direct_propagate+0x244/0x320 [ 54.878371][ T5234] ? nilfs_direct_lookup_contig+0x310/0x310 [ 54.884514][ T5234] nilfs_bmap_propagate+0x73/0x170 [ 54.889725][ T5234] nilfs_collect_file_data+0x45/0xd0 [ 54.895154][ T5234] nilfs_segctor_apply_buffers+0x14a/0x470 [ 54.901179][ T5234] ? nilfs_collect_dat_data+0xd0/0xd0 [ 54.906644][ T5234] nilfs_segctor_scan_file+0x3f4/0x6f0 [ 54.912153][ T5234] ? nilfs_lookup_dirty_data_buffers+0x7a0/0x7a0 [ 54.918687][ T5234] nilfs_segctor_do_construct+0x12fc/0x6af0 [ 54.924806][ T5234] ? nilfs_segctor_abort_construction+0xe20/0xe20 [ 54.931408][ T5234] ? do_raw_spin_lock+0x120/0x2a0 [ 54.936490][ T5234] ? rwlock_bug.part.0+0x90/0x90 [ 54.941464][ T5234] ? do_raw_spin_unlock+0x171/0x230 [ 54.946913][ T5234] ? _raw_spin_unlock+0x24/0x40 [ 54.951836][ T5234] nilfs_segctor_construct+0x8e3/0xb30 [ 54.957423][ T5234] ? rcu_read_lock_sched_held+0x3a/0x70 [ 54.963043][ T5234] ? trace_nilfs2_transaction_transition+0x227/0x2e0 [ 54.969887][ T5234] nilfs_detach_log_writer+0x3bb/0x9f0 [ 54.975412][ T5234] ? nilfs_clean_segments+0xa80/0xa80 [ 54.981152][ T5234] ? hook_sb_remount+0xe0/0xe0 [ 54.986585][ T5234] ? prepare_to_wait_exclusive+0x2b0/0x2b0 [ 54.993117][ T5234] ? dispose_list+0x1e0/0x1e0 [ 54.997888][ T5234] nilfs_put_super+0x3f/0x1a0 [ 55.002631][ T5234] ? nilfs_freeze+0xc0/0xc0 [ 55.007208][ T5234] generic_shutdown_super+0x154/0x410 [ 55.012620][ T5234] kill_block_super+0x97/0xf0 [ 55.017359][ T5234] deactivate_locked_super+0x94/0x160 [ 55.022782][ T5234] deactivate_super+0xad/0xd0 [ 55.027968][ T5234] cleanup_mnt+0x2ae/0x3d0 [ 55.032429][ T5234] task_work_run+0x16b/0x270 [ 55.037091][ T5234] ? task_work_cancel+0x30/0x30 [ 55.041977][ T5234] do_exit+0xaa0/0x28c0 [ 55.046194][ T5234] ? lock_downgrade+0x6e0/0x6e0 [ 55.051076][ T5234] ? do_raw_spin_lock+0x120/0x2a0 [ 55.056154][ T5234] ? mm_update_next_owner+0x7b0/0x7b0 [ 55.061566][ T5234] ? rwlock_bug.part.0+0x90/0x90 [ 55.066577][ T5234] ? _raw_spin_unlock_irq+0x1f/0x40 [ 55.071983][ T5234] do_group_exit+0xd0/0x2a0 [ 55.076611][ T5234] __x64_sys_exit_group+0x3a/0x50 [ 55.081699][ T5234] do_syscall_64+0x35/0xb0 [ 55.086187][ T5234] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 55.092281][ T5234] RIP: 0033:0x7fef1ebcbb49 [ 55.096841][ T5234] Code: Unable to access opcode bytes at 0x7fef1ebcbb1f. [ 55.103926][ T5234] RSP: 002b:00007ffc49fde988 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 55.112362][ T5234] RAX: ffffffffffffffda RBX: 00007fef1ec43330 RCX: 00007fef1ebcbb49 [ 55.120374][ T5234] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 55.128387][ T5234] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00007fef1ec3de40 [ 55.136396][ T5234] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fef1ec43330 [ 55.144405][ T5234] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 55.152477][ T5234] [ 55.155637][ T5234] Kernel panic - not syncing: panic_on_warn set ... [ 55.162239][ T5234] CPU: 1 PID: 5234 Comm: syz-executor141 Not tainted 6.1.0-rc3-next-20221104-syzkaller #0 [ 55.172122][ T5234] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 55.182255][ T5234] Call Trace: [ 55.185538][ T5234] [ 55.188473][ T5234] dump_stack_lvl+0xcd/0x134 [ 55.193077][ T5234] panic+0x2c8/0x622 [ 55.197009][ T5234] ? panic_print_sys_info.part.0+0x110/0x110 [ 55.203211][ T5234] ? __warn.cold+0x24b/0x350 [ 55.207845][ T5234] ? nilfs_dat_commit_end+0x49a/0x5f0 [ 55.213253][ T5234] __warn.cold+0x25c/0x350 [ 55.217703][ T5234] ? nilfs_dat_commit_end+0x49a/0x5f0 [ 55.223115][ T5234] report_bug+0x1bc/0x210 [ 55.227468][ T5234] handle_bug+0x3c/0x70 [ 55.231727][ T5234] exc_invalid_op+0x14/0x40 [ 55.236327][ T5234] asm_exc_invalid_op+0x16/0x20 [ 55.241365][ T5234] RIP: 0010:nilfs_dat_commit_end+0x49a/0x5f0 [ 55.247465][ T5234] Code: 41 5f e9 99 ad 56 fe e8 94 ad 56 fe 48 89 ee 4c 89 e7 e8 09 f0 ff ff eb db e8 82 ad 56 fe e8 dd 54 da fd eb b4 e8 76 ad 56 fe <0f> 0b 4d 89 ef e9 35 fd ff ff e8 67 ad 56 fe e8 c2 54 da fd e9 c6 [ 55.267252][ T5234] RSP: 0018:ffffc90003c2f570 EFLAGS: 00010293 [ 55.273489][ T5234] RAX: 0000000000000000 RBX: ffff888023a77a80 RCX: 0000000000000000 [ 55.281605][ T5234] RDX: ffff88801dd99d40 RSI: ffffffff8326229a RDI: 0000000000000006 [ 55.289590][ T5234] RBP: ffffc90003c2f618 R08: 0000000000000006 R09: 00000026ae000002 [ 55.297565][ T5234] R10: 0000000000000003 R11: 0000000000000000 R12: ffff888073098158 [ 55.305530][ T5234] R13: 0000000000000003 R14: ffffc90003c2f630 R15: 00000026ae000002 [ 55.313762][ T5234] ? nilfs_dat_commit_end+0x49a/0x5f0 [ 55.319146][ T5234] nilfs_dat_commit_update+0x26/0x40 [ 55.324427][ T5234] nilfs_direct_propagate+0x244/0x320 [ 55.329798][ T5234] ? nilfs_direct_lookup_contig+0x310/0x310 [ 55.335870][ T5234] nilfs_bmap_propagate+0x73/0x170 [ 55.340972][ T5234] nilfs_collect_file_data+0x45/0xd0 [ 55.346271][ T5234] nilfs_segctor_apply_buffers+0x14a/0x470 [ 55.352202][ T5234] ? nilfs_collect_dat_data+0xd0/0xd0 [ 55.357602][ T5234] nilfs_segctor_scan_file+0x3f4/0x6f0 [ 55.363187][ T5234] ? nilfs_lookup_dirty_data_buffers+0x7a0/0x7a0 [ 55.369555][ T5234] nilfs_segctor_do_construct+0x12fc/0x6af0 [ 55.375582][ T5234] ? nilfs_segctor_abort_construction+0xe20/0xe20 [ 55.382190][ T5234] ? do_raw_spin_lock+0x120/0x2a0 [ 55.387310][ T5234] ? rwlock_bug.part.0+0x90/0x90 [ 55.392425][ T5234] ? do_raw_spin_unlock+0x171/0x230 [ 55.397624][ T5234] ? _raw_spin_unlock+0x24/0x40 [ 55.402660][ T5234] nilfs_segctor_construct+0x8e3/0xb30 [ 55.408113][ T5234] ? rcu_read_lock_sched_held+0x3a/0x70 [ 55.413682][ T5234] ? trace_nilfs2_transaction_transition+0x227/0x2e0 [ 55.420365][ T5234] nilfs_detach_log_writer+0x3bb/0x9f0 [ 55.425819][ T5234] ? nilfs_clean_segments+0xa80/0xa80 [ 55.431362][ T5234] ? hook_sb_remount+0xe0/0xe0 [ 55.436139][ T5234] ? prepare_to_wait_exclusive+0x2b0/0x2b0 [ 55.442221][ T5234] ? dispose_list+0x1e0/0x1e0 [ 55.446905][ T5234] nilfs_put_super+0x3f/0x1a0 [ 55.451602][ T5234] ? nilfs_freeze+0xc0/0xc0 [ 55.456195][ T5234] generic_shutdown_super+0x154/0x410 [ 55.461572][ T5234] kill_block_super+0x97/0xf0 [ 55.466258][ T5234] deactivate_locked_super+0x94/0x160 [ 55.471699][ T5234] deactivate_super+0xad/0xd0 [ 55.476407][ T5234] cleanup_mnt+0x2ae/0x3d0 [ 55.481091][ T5234] task_work_run+0x16b/0x270 [ 55.485689][ T5234] ? task_work_cancel+0x30/0x30 [ 55.490546][ T5234] do_exit+0xaa0/0x28c0 [ 55.494697][ T5234] ? lock_downgrade+0x6e0/0x6e0 [ 55.499538][ T5234] ? do_raw_spin_lock+0x120/0x2a0 [ 55.504702][ T5234] ? mm_update_next_owner+0x7b0/0x7b0 [ 55.510410][ T5234] ? rwlock_bug.part.0+0x90/0x90 [ 55.515457][ T5234] ? _raw_spin_unlock_irq+0x1f/0x40 [ 55.520856][ T5234] do_group_exit+0xd0/0x2a0 [ 55.525453][ T5234] __x64_sys_exit_group+0x3a/0x50 [ 55.530578][ T5234] do_syscall_64+0x35/0xb0 [ 55.535008][ T5234] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 55.541249][ T5234] RIP: 0033:0x7fef1ebcbb49 [ 55.545656][ T5234] Code: Unable to access opcode bytes at 0x7fef1ebcbb1f. [ 55.552656][ T5234] RSP: 002b:00007ffc49fde988 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 55.561057][ T5234] RAX: ffffffffffffffda RBX: 00007fef1ec43330 RCX: 00007fef1ebcbb49 [ 55.569025][ T5234] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 55.577422][ T5234] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00007fef1ec3de40 [ 55.587559][ T5234] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fef1ec43330 [ 55.595697][ T5234] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 55.603680][ T5234] [ 55.606776][ T5234] Kernel Offset: disabled [ 55.611200][ T5234] Rebooting in 86400 seconds..