./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2004341956 <...> forked to background, child pid 3186 no interfaces have a carrier [ 22.662978][ T3187] 8021q: adding VLAN 0 to HW filter on device bond0 [ 22.673754][ T3187] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.64' (ECDSA) to the list of known hosts. execve("./syz-executor2004341956", ["./syz-executor2004341956"], 0x7ffea304afd0 /* 10 vars */) = 0 brk(NULL) = 0x555556438000 brk(0x555556438c40) = 0x555556438c40 arch_prctl(ARCH_SET_FS, 0x555556438300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor2004341956", 4096) = 28 brk(0x555556459c40) = 0x555556459c40 brk(0x55555645a000) = 0x55555645a000 mprotect(0x7f8aeeb71000, 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=0x5555564385d0) = 3608 ./strace-static-x86_64: Process 3608 attached [pid 3608] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 3608] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3608] setsid() = 1 [pid 3608] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 3608] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 3608] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 3608] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 3608] prlimit64(0, RLIMIT_CORE, {rlim_cur=0, rlim_max=0}, NULL) = 0 [pid 3608] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 3608] unshare(CLONE_NEWNS) = 0 [pid 3608] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 3608] unshare(CLONE_NEWIPC) = 0 [pid 3608] unshare(CLONE_NEWCGROUP) = 0 [pid 3608] unshare(CLONE_NEWUTS) = 0 [pid 3608] unshare(CLONE_SYSVSEM) = 0 [pid 3608] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3608] write(3, "16777216", 8) = 8 [pid 3608] close(3) = 0 [pid 3608] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 3608] write(3, "536870912", 9) = 9 [pid 3608] close(3) = 0 [pid 3608] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3608] write(3, "1024", 4) = 4 [pid 3608] close(3) = 0 [pid 3608] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3608] write(3, "8192", 4) = 4 [pid 3608] close(3) = 0 [pid 3608] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3608] write(3, "1024", 4) = 4 [pid 3608] close(3) = 0 [pid 3608] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 3608] write(3, "1024", 4) = 4 [pid 3608] close(3) = 0 [pid 3608] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 3608] write(3, "1024 1048576 500 1024", 21) = 21 [pid 3608] close(3) = 0 [pid 3608] getpid() = 1 [pid 3608] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b e9 0d fe ff ff e8 dc 14 a3 fe e9 c6 fb ff ff e8 d2 14 a3 fe [ 44.699298][ T3609] RSP: 0018:ffffc90003b8fa80 EFLAGS: 00010293 [ 44.705447][ T3609] RAX: 0000000000000000 RBX: ffff888074fea160 RCX: 0000000000000000 [ 44.713655][ T3609] RDX: ffff8880267d8000 RSI: ffffffff83250e38 RDI: 0000000000000005 [ 44.721661][ T3609] RBP: ffff88807139a050 R08: 0000000000000005 R09: 0000000000000000 [ 44.729717][ T3609] R10: 0000000000000004 R11: 0000000000000000 R12: 0000000000000000 [ 44.737766][ T3609] R13: 1ffff92000771f55 R14: ffff888074fea5e8 R15: 00000000633dd94c [ 44.745798][ T3609] FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 [ 44.754951][ T3609] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 44.761531][ T3609] CR2: 000055e2207d1a70 CR3: 000000007137c000 CR4: 0000000000350ee0 [ 44.769585][ T3609] Call Trace: [ 44.772902][ T3609] [ 44.775835][ T3609] ? nilfs_sufile_mark_dirty+0x230/0x230 [ 44.781457][ T3609] ? memcpy+0x39/0x60 [ 44.785496][ T3609] nilfs_segctor_do_construct+0x1f6e/0x6970 [ 44.791537][ T3609] ? nilfs_segctor_abort_construction+0xe20/0xe20 [ 44.798192][ T3609] ? do_raw_spin_lock+0x120/0x2a0 [ 44.803392][ T3609] ? rwlock_bug.part.0+0x90/0x90 [ 44.808376][ T3609] ? do_raw_spin_unlock+0x171/0x230 [ 44.813667][ T3609] ? _raw_spin_unlock+0x24/0x40 [ 44.818538][ T3609] nilfs_segctor_construct+0x8e3/0xb30 [ 44.824045][ T3609] ? rcu_read_lock_sched_held+0x3a/0x70 [ 44.829650][ T3609] ? trace_nilfs2_transaction_transition+0x1a7/0x240 [ 44.836393][ T3609] nilfs_segctor_thread+0x3c3/0xfe0 [ 44.841668][ T3609] ? nilfs_segctor_construct+0xb30/0xb30 [ 44.847337][ T3609] ? _raw_spin_unlock_irqrestore+0x50/0x70 [ 44.853446][ T3609] ? prepare_to_wait_exclusive+0x2b0/0x2b0 [ 44.859283][ T3609] ? __kthread_parkme+0x15f/0x220 [ 44.864625][ T3609] ? nilfs_segctor_construct+0xb30/0xb30 [ 44.870327][ T3609] kthread+0x2e4/0x3a0 [ 44.874651][ T3609] ? kthread_complete_and_exit+0x40/0x40 [ 44.880376][ T3609] ret_from_fork+0x1f/0x30 [ 44.884902][ T3609] [ 44.887972][ T3609] Kernel panic - not syncing: panic_on_warn set ... [ 44.894807][ T3609] CPU: 1 PID: 3609 Comm: segctord Not tainted 6.0.0-syzkaller-03015-g2bca25eaeba6 #0 [ 44.904646][ T3609] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 44.914960][ T3609] Call Trace: [ 44.918225][ T3609] [ 44.921145][ T3609] dump_stack_lvl+0xcd/0x134 [ 44.925732][ T3609] panic+0x2c8/0x627 [ 44.929618][ T3609] ? panic_print_sys_info.part.0+0x10b/0x10b [ 44.935710][ T3609] ? __warn.cold+0x248/0x2c4 [ 44.940289][ T3609] ? nilfs_sufile_set_segment_usage+0x518/0x6a0 [ 44.946521][ T3609] __warn.cold+0x259/0x2c4 [ 44.950949][ T3609] ? nilfs_sufile_set_segment_usage+0x518/0x6a0 [ 44.957193][ T3609] report_bug+0x1bc/0x210 [ 44.961539][ T3609] handle_bug+0x3c/0x70 [ 44.965717][ T3609] exc_invalid_op+0x14/0x40 [ 44.970232][ T3609] asm_exc_invalid_op+0x16/0x20 [ 44.975094][ T3609] RIP: 0010:nilfs_sufile_set_segment_usage+0x518/0x6a0 [ 44.981953][ T3609] Code: 07 56 fe 48 8b 6c 24 48 48 85 ed 0f 85 5b ff ff ff e9 63 ff ff ff e8 47 07 56 fe e8 9c 66 db fd e9 db fe ff ff e8 38 07 56 fe <0f> 0b e9 0d fe ff ff e8 dc 14 a3 fe e9 c6 fb ff ff e8 d2 14 a3 fe [ 45.001576][ T3609] RSP: 0018:ffffc90003b8fa80 EFLAGS: 00010293 [ 45.007632][ T3609] RAX: 0000000000000000 RBX: ffff888074fea160 RCX: 0000000000000000 [ 45.015614][ T3609] RDX: ffff8880267d8000 RSI: ffffffff83250e38 RDI: 0000000000000005 [ 45.023573][ T3609] RBP: ffff88807139a050 R08: 0000000000000005 R09: 0000000000000000 [ 45.031625][ T3609] R10: 0000000000000004 R11: 0000000000000000 R12: 0000000000000000 [ 45.040130][ T3609] R13: 1ffff92000771f55 R14: ffff888074fea5e8 R15: 00000000633dd94c [ 45.048124][ T3609] ? nilfs_sufile_set_segment_usage+0x518/0x6a0 [ 45.054389][ T3609] ? nilfs_sufile_mark_dirty+0x230/0x230 [ 45.060118][ T3609] ? memcpy+0x39/0x60 [ 45.064103][ T3609] nilfs_segctor_do_construct+0x1f6e/0x6970 [ 45.070027][ T3609] ? nilfs_segctor_abort_construction+0xe20/0xe20 [ 45.076504][ T3609] ? do_raw_spin_lock+0x120/0x2a0 [ 45.081522][ T3609] ? rwlock_bug.part.0+0x90/0x90 [ 45.086455][ T3609] ? do_raw_spin_unlock+0x171/0x230 [ 45.091659][ T3609] ? _raw_spin_unlock+0x24/0x40 [ 45.096526][ T3609] nilfs_segctor_construct+0x8e3/0xb30 [ 45.102013][ T3609] ? rcu_read_lock_sched_held+0x3a/0x70 [ 45.107576][ T3609] ? trace_nilfs2_transaction_transition+0x1a7/0x240 [ 45.114273][ T3609] nilfs_segctor_thread+0x3c3/0xfe0 [ 45.119489][ T3609] ? nilfs_segctor_construct+0xb30/0xb30 [ 45.125139][ T3609] ? _raw_spin_unlock_irqrestore+0x50/0x70 [ 45.130946][ T3609] ? prepare_to_wait_exclusive+0x2b0/0x2b0 [ 45.136747][ T3609] ? __kthread_parkme+0x15f/0x220 [ 45.141767][ T3609] ? nilfs_segctor_construct+0xb30/0xb30 [ 45.147394][ T3609] kthread+0x2e4/0x3a0 [ 45.151448][ T3609] ? kthread_complete_and_exit+0x40/0x40 [ 45.157068][ T3609] ret_from_fork+0x1f/0x30 [ 45.161545][ T3609] [ 45.165286][ T3609] Kernel Offset: disabled [ 45.169684][ T3609] Rebooting in 86400 seconds..