./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4115874278 <...> forked to background, child pid 3183 no interfa[ 19.380806][ T3184] 8021q: adding VLAN 0 to HW filter on device bond0 ces have a carrier [ 19.393402][ T3184] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.10.14' (ECDSA) to the list of known hosts. execve("./syz-executor4115874278", ["./syz-executor4115874278"], 0x7fff091f1a00 /* 10 vars */) = 0 brk(NULL) = 0x555556cce000 brk(0x555556ccec40) = 0x555556ccec40 arch_prctl(ARCH_SET_FS, 0x555556cce300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor4115874278", 4096) = 28 brk(0x555556cefc40) = 0x555556cefc40 brk(0x555556cf0000) = 0x555556cf0000 mprotect(0x7f1c8bde4000, 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, child_tidptr=0x555556cce5d0) = 3605 ./strace-static-x86_64: Process 3605 attached [pid 3605] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 3605] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3605] setsid() = 1 [pid 3605] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 3605] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 3605] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 3605] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 3605] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 3605] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 3605] unshare(CLONE_NEWNS) = 0 [pid 3605] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 3605] unshare(CLONE_NEWIPC) = 0 [pid 3605] unshare(CLONE_NEWCGROUP) = 0 [pid 3605] unshare(CLONE_NEWUTS) = 0 [pid 3605] unshare(CLONE_SYSVSEM) = 0 [pid 3605] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3605] write(3, "16777216", 8) = 8 [pid 3605] close(3) = 0 [pid 3605] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 3605] write(3, "536870912", 9) = 9 [pid 3605] close(3) = 0 [pid 3605] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3605] write(3, "1024", 4) = 4 [pid 3605] close(3) = 0 [pid 3605] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3605] write(3, "8192", 4) = 4 [pid 3605] close(3) = 0 [pid 3605] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3605] write(3, "1024", 4) = 4 [pid 3605] close(3) = 0 [pid 3605] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 3605] write(3, "1024", 4) = 4 [pid 3605] close(3) = 0 [pid 3605] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 3605] write(3, "1024 1048576 500 1024", 21) = 21 [pid 3605] close(3) = 0 [pid 3605] getpid() = 1 [pid 3605] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b eb ca e8 b2 0b 59 fe 48 89 de 4c 89 ef e8 d7 a2 03 00 31 ff [ 34.324685][ T3606] RSP: 0018:ffffc9000405f850 EFLAGS: 00010293 [ 34.330799][ T3606] RAX: 0000000000000000 RBX: ffffc9000405f8f8 RCX: 0000000000000000 [ 34.338990][ T3606] RDX: ffff8880205f9d80 RSI: ffffffff83220b75 RDI: 0000000000000005 [ 34.347008][ T3606] RBP: ffffc9000405f910 R08: 0000000000000005 R09: 00000000fffffffe [ 34.354993][ T3606] R10: 00000000fffffffe R11: 000000000008c07c R12: 00000000fffffffe [ 34.363010][ T3606] R13: ffff888073740158 R14: ffffc9000405f938 R15: ffff8880734e0700 [ 34.371029][ T3606] FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 [ 34.379998][ T3606] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 34.386637][ T3606] CR2: 00007f1c8bdeb1d0 CR3: 000000000bc8e000 CR4: 0000000000350ef0 [ 34.394612][ T3606] Call Trace: [ 34.398278][ T3606] [ 34.401245][ T3606] nilfs_dat_prepare_update+0x24/0xf0 [ 34.407320][ T3606] nilfs_direct_propagate+0x1dc/0x320 [ 34.412736][ T3606] ? nilfs_direct_lookup_contig+0x310/0x310 [ 34.418719][ T3606] ? down_write_killable_nested+0x180/0x180 [ 34.424683][ T3606] ? do_raw_spin_lock+0x120/0x2a0 [ 34.429876][ T3606] ? lock_downgrade+0x6e0/0x6e0 [ 34.434750][ T3606] nilfs_bmap_propagate+0x73/0x170 [ 34.439919][ T3606] ? __brelse+0x84/0xa0 [ 34.444184][ T3606] nilfs_segctor_apply_buffers+0x14a/0x470 [ 34.450034][ T3606] ? nilfs_redirty_inodes+0x110/0x110 [ 34.456011][ T3606] nilfs_segctor_scan_file+0x261/0x6f0 [ 34.461555][ T3606] ? nilfs_lookup_dirty_data_buffers+0x7a0/0x7a0 [ 34.467944][ T3606] ? nilfs_sufile_mark_dirty+0x11e/0x230 [ 34.473591][ T3606] ? nilfs_segbuf_reset+0x16a/0x1c0 [ 34.478912][ T3606] nilfs_segctor_do_construct+0x2392/0x6970 [ 34.484848][ T3606] ? nilfs_segctor_abort_construction+0xe20/0xe20 [ 34.491303][ T3606] ? do_raw_spin_lock+0x120/0x2a0 [ 34.496479][ T3606] ? rwlock_bug.part.0+0x90/0x90 [ 34.501580][ T3606] ? do_raw_spin_unlock+0x171/0x230 [ 34.506815][ T3606] ? _raw_spin_unlock+0x24/0x40 [ 34.511718][ T3606] nilfs_segctor_construct+0x8e3/0xb30 [ 34.517326][ T3606] ? rcu_read_lock_sched_held+0xd/0x70 [ 34.522855][ T3606] ? trace_nilfs2_transaction_transition+0x1a7/0x240 [ 34.529587][ T3606] nilfs_segctor_thread+0x3c3/0xfe0 [ 34.535012][ T3606] ? nilfs_segctor_construct+0xb30/0xb30 [ 34.540868][ T3606] ? rwlock_bug.part.0+0x90/0x90 [ 34.545933][ T3606] ? io_schedule_timeout+0x140/0x140 [ 34.551207][ T3606] ? prepare_to_wait_exclusive+0x2b0/0x2b0 [ 34.557049][ T3606] ? __kthread_parkme+0x15f/0x220 [ 34.562187][ T3606] ? nilfs_segctor_construct+0xb30/0xb30 [ 34.567869][ T3606] kthread+0x2e4/0x3a0 [ 34.571974][ T3606] ? kthread_complete_and_exit+0x40/0x40 [ 34.577654][ T3606] ret_from_fork+0x1f/0x30 [ 34.582109][ T3606] [ 34.585114][ T3606] Kernel panic - not syncing: panic_on_warn set ... [ 34.591785][ T3606] CPU: 0 PID: 3606 Comm: segctord Not tainted 6.0.0-syzkaller-09039-ga6afa4199d3d #0 [ 34.601308][ T3606] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 34.611694][ T3606] Call Trace: [ 34.614974][ T3606] [ 34.617888][ T3606] dump_stack_lvl+0xcd/0x134 [ 34.622464][ T3606] panic+0x2c8/0x622 [ 34.626363][ T3606] ? panic_print_sys_info.part.0+0x10b/0x10b [ 34.632344][ T3606] ? __warn.cold+0x248/0x2c4 [ 34.637103][ T3606] ? nilfs_dat_prepare_end+0x215/0x320 [ 34.642563][ T3606] __warn.cold+0x259/0x2c4 [ 34.646977][ T3606] ? nilfs_dat_prepare_end+0x215/0x320 [ 34.652430][ T3606] report_bug+0x1bc/0x210 [ 34.656758][ T3606] handle_bug+0x3c/0x70 [ 34.660933][ T3606] exc_invalid_op+0x14/0x40 [ 34.665435][ T3606] asm_exc_invalid_op+0x16/0x20 [ 34.670278][ T3606] RIP: 0010:nilfs_dat_prepare_end+0x215/0x320 [ 34.676343][ T3606] Code: 48 83 c4 10 5b 5d 41 5c 41 5d 41 5e c3 e8 d3 0b 59 fe 44 89 e6 bf fe ff ff ff e8 86 08 59 fe 41 83 fc fe 75 d3 e8 bb 0b 59 fe <0f> 0b eb ca e8 b2 0b 59 fe 48 89 de 4c 89 ef e8 d7 a2 03 00 31 ff [ 34.696055][ T3606] RSP: 0018:ffffc9000405f850 EFLAGS: 00010293 [ 34.702463][ T3606] RAX: 0000000000000000 RBX: ffffc9000405f8f8 RCX: 0000000000000000 [ 34.710442][ T3606] RDX: ffff8880205f9d80 RSI: ffffffff83220b75 RDI: 0000000000000005 [ 34.718408][ T3606] RBP: ffffc9000405f910 R08: 0000000000000005 R09: 00000000fffffffe [ 34.726375][ T3606] R10: 00000000fffffffe R11: 000000000008c07c R12: 00000000fffffffe [ 34.734357][ T3606] R13: ffff888073740158 R14: ffffc9000405f938 R15: ffff8880734e0700 [ 34.742325][ T3606] ? nilfs_dat_prepare_end+0x215/0x320 [ 34.747965][ T3606] nilfs_dat_prepare_update+0x24/0xf0 [ 34.753336][ T3606] nilfs_direct_propagate+0x1dc/0x320 [ 34.758709][ T3606] ? nilfs_direct_lookup_contig+0x310/0x310 [ 34.764609][ T3606] ? down_write_killable_nested+0x180/0x180 [ 34.770507][ T3606] ? do_raw_spin_lock+0x120/0x2a0 [ 34.775529][ T3606] ? lock_downgrade+0x6e0/0x6e0 [ 34.780391][ T3606] nilfs_bmap_propagate+0x73/0x170 [ 34.785678][ T3606] ? __brelse+0x84/0xa0 [ 34.790029][ T3606] nilfs_segctor_apply_buffers+0x14a/0x470 [ 34.795842][ T3606] ? nilfs_redirty_inodes+0x110/0x110 [ 34.801236][ T3606] nilfs_segctor_scan_file+0x261/0x6f0 [ 34.806872][ T3606] ? nilfs_lookup_dirty_data_buffers+0x7a0/0x7a0 [ 34.813219][ T3606] ? nilfs_sufile_mark_dirty+0x11e/0x230 [ 34.818847][ T3606] ? nilfs_segbuf_reset+0x16a/0x1c0 [ 34.824063][ T3606] nilfs_segctor_do_construct+0x2392/0x6970 [ 34.830144][ T3606] ? nilfs_segctor_abort_construction+0xe20/0xe20 [ 34.836561][ T3606] ? do_raw_spin_lock+0x120/0x2a0 [ 34.841580][ T3606] ? rwlock_bug.part.0+0x90/0x90 [ 34.846521][ T3606] ? do_raw_spin_unlock+0x171/0x230 [ 34.851721][ T3606] ? _raw_spin_unlock+0x24/0x40 [ 34.856577][ T3606] nilfs_segctor_construct+0x8e3/0xb30 [ 34.862044][ T3606] ? rcu_read_lock_sched_held+0xd/0x70 [ 34.867516][ T3606] ? trace_nilfs2_transaction_transition+0x1a7/0x240 [ 34.874296][ T3606] nilfs_segctor_thread+0x3c3/0xfe0 [ 34.879508][ T3606] ? nilfs_segctor_construct+0xb30/0xb30 [ 34.885153][ T3606] ? rwlock_bug.part.0+0x90/0x90 [ 34.890104][ T3606] ? io_schedule_timeout+0x140/0x140 [ 34.895396][ T3606] ? prepare_to_wait_exclusive+0x2b0/0x2b0 [ 34.901204][ T3606] ? __kthread_parkme+0x15f/0x220 [ 34.906224][ T3606] ? nilfs_segctor_construct+0xb30/0xb30 [ 34.911953][ T3606] kthread+0x2e4/0x3a0 [ 34.916016][ T3606] ? kthread_complete_and_exit+0x40/0x40 [ 34.921650][ T3606] ret_from_fork+0x1f/0x30 [ 34.926074][ T3606] [ 34.929810][ T3606] Kernel Offset: disabled [ 34.934125][ T3606] Rebooting in 86400 seconds..