./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3273210527 <...> forked to background, child pid 3186 no interfaces have a carrier [ 28.687262][ T3187] 8021q: adding VLAN 0 to HW filter on device bond0 [ 28.701557][ T3187] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.43' (ECDSA) to the list of known hosts. execve("./syz-executor3273210527", ["./syz-executor3273210527"], 0x7ffd167b56c0 /* 10 vars */) = 0 brk(NULL) = 0x555555f95000 brk(0x555555f95c40) = 0x555555f95c40 arch_prctl(ARCH_SET_FS, 0x555555f95300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor3273210527", 4096) = 28 brk(0x555555fb6c40) = 0x555555fb6c40 brk(0x555555fb7000) = 0x555555fb7000 mprotect(0x7fb3917f5000, 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 3616 attached , child_tidptr=0x555555f955d0) = 3616 [pid 3616] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 3616] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3616] setsid() = 1 [pid 3616] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 3616] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 3616] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 3616] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 3616] prlimit64(0, RLIMIT_CORE, {rlim_cur=0, rlim_max=0}, NULL) = 0 [pid 3616] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 3616] unshare(CLONE_NEWNS) = 0 [pid 3616] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 3616] unshare(CLONE_NEWIPC) = 0 [pid 3616] unshare(CLONE_NEWCGROUP) = 0 [pid 3616] unshare(CLONE_NEWUTS) = 0 [pid 3616] unshare(CLONE_SYSVSEM) = 0 [pid 3616] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3616] write(3, "16777216", 8) = 8 [pid 3616] close(3) = 0 [pid 3616] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 3616] write(3, "536870912", 9) = 9 [pid 3616] close(3) = 0 [pid 3616] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3616] write(3, "1024", 4) = 4 [pid 3616] close(3) = 0 [pid 3616] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3616] write(3, "8192", 4) = 4 [pid 3616] close(3) = 0 [pid 3616] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3616] write(3, "1024", 4) = 4 [pid 3616] close(3) = 0 [pid 3616] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 3616] write(3, "1024", 4) = 4 [pid 3616] close(3) = 0 [pid 3616] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 3616] write(3, "1024 1048576 500 1024", 21) = 21 [pid 3616] close(3) = 0 [pid 3616] getpid() = 1 [pid 3616] 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 [ 47.967552][ T3617] RSP: 0018:ffffc90003c2fa80 EFLAGS: 00010293 [ 47.973649][ T3617] RAX: 0000000000000000 RBX: ffff8880736aa160 RCX: 0000000000000000 [ 47.981702][ T3617] RDX: ffff888026603b00 RSI: ffffffff83250e78 RDI: 0000000000000005 [ 47.989743][ T3617] RBP: ffff88807071d050 R08: 0000000000000005 R09: 0000000000000000 [ 47.997760][ T3617] R10: 0000000000000004 R11: 0000000000000000 R12: 0000000000000000 [ 48.005752][ T3617] R13: 1ffff92000785f55 R14: ffff8880736aa5e8 R15: 00000000633fd72f [ 48.013796][ T3617] FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 [ 48.022784][ T3617] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 48.029414][ T3617] CR2: 00007fb3917fc1d0 CR3: 000000000bc8e000 CR4: 0000000000350ee0 [ 48.037403][ T3617] Call Trace: [ 48.040718][ T3617] [ 48.043670][ T3617] ? nilfs_sufile_mark_dirty+0x230/0x230 [ 48.049379][ T3617] ? memcpy+0x39/0x60 [ 48.053451][ T3617] nilfs_segctor_do_construct+0x1f6e/0x6970 [ 48.059443][ T3617] ? nilfs_segctor_abort_construction+0xe20/0xe20 [ 48.065912][ T3617] ? do_raw_spin_lock+0x120/0x2a0 [ 48.071013][ T3617] ? rwlock_bug.part.0+0x90/0x90 [ 48.075988][ T3617] ? do_raw_spin_unlock+0x171/0x230 [ 48.081227][ T3617] ? _raw_spin_unlock+0x24/0x40 [ 48.086188][ T3617] nilfs_segctor_construct+0x8e3/0xb30 [ 48.091736][ T3617] ? rcu_read_lock_sched_held+0x3a/0x70 [ 48.097358][ T3617] ? trace_nilfs2_transaction_transition+0x1a7/0x240 [ 48.104105][ T3617] nilfs_segctor_thread+0x3c3/0xfe0 [ 48.109407][ T3617] ? nilfs_segctor_construct+0xb30/0xb30 [ 48.115109][ T3617] ? _raw_spin_unlock_irqrestore+0x50/0x70 [ 48.120993][ T3617] ? prepare_to_wait_exclusive+0x2b0/0x2b0 [ 48.126851][ T3617] ? __kthread_parkme+0x15f/0x220 [ 48.131959][ T3617] ? nilfs_segctor_construct+0xb30/0xb30 [ 48.137688][ T3617] kthread+0x2e4/0x3a0 [ 48.141744][ T3617] ? kthread_complete_and_exit+0x40/0x40 [ 48.147362][ T3617] ret_from_fork+0x1f/0x30 [ 48.151864][ T3617] [ 48.154940][ T3617] Kernel panic - not syncing: panic_on_warn set ... [ 48.161515][ T3617] CPU: 1 PID: 3617 Comm: segctord Not tainted 6.0.0-syzkaller-06205-gffb39098bf87 #0 [ 48.170968][ T3617] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 48.181016][ T3617] Call Trace: [ 48.184283][ T3617] [ 48.187202][ T3617] dump_stack_lvl+0xcd/0x134 [ 48.191841][ T3617] panic+0x2c8/0x627 [ 48.195743][ T3617] ? panic_print_sys_info.part.0+0x10b/0x10b [ 48.201721][ T3617] ? __warn.cold+0x248/0x2c4 [ 48.206300][ T3617] ? nilfs_sufile_set_segment_usage+0x518/0x6a0 [ 48.212547][ T3617] __warn.cold+0x259/0x2c4 [ 48.217210][ T3617] ? nilfs_sufile_set_segment_usage+0x518/0x6a0 [ 48.223466][ T3617] report_bug+0x1bc/0x210 [ 48.227864][ T3617] handle_bug+0x3c/0x70 [ 48.232026][ T3617] exc_invalid_op+0x14/0x40 [ 48.236528][ T3617] asm_exc_invalid_op+0x16/0x20 [ 48.241382][ T3617] RIP: 0010:nilfs_sufile_set_segment_usage+0x518/0x6a0 [ 48.248238][ T3617] 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 5c 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 [ 48.267844][ T3617] RSP: 0018:ffffc90003c2fa80 EFLAGS: 00010293 [ 48.273909][ T3617] RAX: 0000000000000000 RBX: ffff8880736aa160 RCX: 0000000000000000 [ 48.281889][ T3617] RDX: ffff888026603b00 RSI: ffffffff83250e78 RDI: 0000000000000005 [ 48.289866][ T3617] RBP: ffff88807071d050 R08: 0000000000000005 R09: 0000000000000000 [ 48.297847][ T3617] R10: 0000000000000004 R11: 0000000000000000 R12: 0000000000000000 [ 48.305839][ T3617] R13: 1ffff92000785f55 R14: ffff8880736aa5e8 R15: 00000000633fd72f [ 48.313850][ T3617] ? nilfs_sufile_set_segment_usage+0x518/0x6a0 [ 48.320132][ T3617] ? nilfs_sufile_mark_dirty+0x230/0x230 [ 48.325786][ T3617] ? memcpy+0x39/0x60 [ 48.329794][ T3617] nilfs_segctor_do_construct+0x1f6e/0x6970 [ 48.335728][ T3617] ? nilfs_segctor_abort_construction+0xe20/0xe20 [ 48.342152][ T3617] ? do_raw_spin_lock+0x120/0x2a0 [ 48.347175][ T3617] ? rwlock_bug.part.0+0x90/0x90 [ 48.352115][ T3617] ? do_raw_spin_unlock+0x171/0x230 [ 48.357316][ T3617] ? _raw_spin_unlock+0x24/0x40 [ 48.362178][ T3617] nilfs_segctor_construct+0x8e3/0xb30 [ 48.367642][ T3617] ? rcu_read_lock_sched_held+0x3a/0x70 [ 48.373191][ T3617] ? trace_nilfs2_transaction_transition+0x1a7/0x240 [ 48.379897][ T3617] nilfs_segctor_thread+0x3c3/0xfe0 [ 48.385128][ T3617] ? nilfs_segctor_construct+0xb30/0xb30 [ 48.390774][ T3617] ? _raw_spin_unlock_irqrestore+0x50/0x70 [ 48.396592][ T3617] ? prepare_to_wait_exclusive+0x2b0/0x2b0 [ 48.402402][ T3617] ? __kthread_parkme+0x15f/0x220 [ 48.407423][ T3617] ? nilfs_segctor_construct+0xb30/0xb30 [ 48.413069][ T3617] kthread+0x2e4/0x3a0 [ 48.417227][ T3617] ? kthread_complete_and_exit+0x40/0x40 [ 48.422867][ T3617] ret_from_fork+0x1f/0x30 [ 48.427315][ T3617] [ 48.431229][ T3617] Kernel Offset: disabled [ 48.435630][ T3617] Rebooting in 86400 seconds..