./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor931637052 <...> Warning: Permanently added '10.128.0.108' (ED25519) to the list of known hosts. execve("./syz-executor931637052", ["./syz-executor931637052"], 0x7fff9302cce0 /* 10 vars */) = 0 brk(NULL) = 0x55555645b000 brk(0x55555645bd00) = 0x55555645bd00 arch_prctl(ARCH_SET_FS, 0x55555645b380) = 0 set_tid_address(0x55555645b650) = 5014 set_robust_list(0x55555645b660, 24) = 0 rseq(0x55555645bca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor931637052", 4096) = 27 getrandom("\x98\x69\x6a\xfb\xdb\xa8\xb6\x77", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55555645bd00 brk(0x55555647cd00) = 0x55555647cd00 brk(0x55555647d000) = 0x55555647d000 mprotect(0x7f3718574000, 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=0x55555645b650) = 5015 ./strace-static-x86_64: Process 5015 attached [pid 5015] set_robust_list(0x55555645b660, 24) = 0 [pid 5015] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5015] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5015] setsid() = 1 [pid 5015] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5015] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5015] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5015] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5015] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5015] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5015] unshare(CLONE_NEWNS) = 0 [pid 5015] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5015] unshare(CLONE_NEWIPC) = 0 [pid 5015] unshare(CLONE_NEWCGROUP) = 0 [pid 5015] unshare(CLONE_NEWUTS) = 0 [pid 5015] unshare(CLONE_SYSVSEM) = 0 [pid 5015] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5015] write(3, "16777216", 8) = 8 [pid 5015] close(3) = 0 [pid 5015] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5015] write(3, "536870912", 9) = 9 [pid 5015] close(3) = 0 [pid 5015] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5015] write(3, "1024", 4) = 4 [pid 5015] close(3) = 0 [pid 5015] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5015] write(3, "8192", 4) = 4 [pid 5015] close(3) = 0 [pid 5015] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5015] write(3, "1024", 4) = 4 [pid 5015] close(3) = 0 [pid 5015] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5015] write(3, "1024", 4) = 4 [pid 5015] close(3) = 0 [pid 5015] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5015] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5015] close(3) = 0 [pid 5015] getpid() = 1 [pid 5015] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b e9 0f fe ff ff e8 43 29 38 fe e8 de f7 ac fd e9 be fe ff ff [ 52.924126][ T5018] RSP: 0018:ffffc90003baf5e0 EFLAGS: 00010293 [ 52.930234][ T5018] RAX: ffffffff83538ee1 RBX: 0000000000000004 RCX: ffff88807dbb1dc0 [ 52.938269][ T5018] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000000 [ 52.946247][ T5018] RBP: ffffc90003baf6d0 R08: ffffffff83538ce4 R09: ffffffff834ebcdb [ 52.954285][ T5018] R10: 0000000000000002 R11: ffff88807dbb1dc0 R12: dffffc0000000000 [ 52.962318][ T5018] R13: ffff88802ae1b000 R14: ffff8880753025e8 R15: 0000000000000060 [ 52.970345][ T5018] FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 52.979427][ T5018] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 52.986126][ T5018] CR2: 00007f78e1195ed8 CR3: 000000002bf85000 CR4: 00000000003506e0 [ 52.994146][ T5018] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 53.002255][ T5018] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 53.010269][ T5018] Call Trace: [ 53.013555][ T5018] [ 53.016472][ T5018] ? __warn+0x162/0x4a0 [ 53.020743][ T5018] ? nilfs_sufile_set_segment_usage+0x501/0x5f0 [ 53.027058][ T5018] ? report_bug+0x2b3/0x500 [ 53.031641][ T5018] ? nilfs_sufile_set_segment_usage+0x501/0x5f0 [ 53.037922][ T5018] ? handle_bug+0x3d/0x70 [ 53.042260][ T5018] ? exc_invalid_op+0x1a/0x50 [ 53.047003][ T5018] ? asm_exc_invalid_op+0x1a/0x20 [ 53.052131][ T5018] ? nilfs_mdt_read_block+0xfb/0x430 [ 53.057649][ T5018] ? nilfs_sufile_set_segment_usage+0x304/0x5f0 [ 53.063899][ T5018] ? nilfs_sufile_set_segment_usage+0x501/0x5f0 [ 53.070193][ T5018] ? nilfs_sufile_set_segment_usage+0x501/0x5f0 [ 53.076449][ T5018] ? nilfs_sufile_mark_dirty+0x510/0x510 [ 53.082249][ T5018] ? __asan_memcpy+0x40/0x70 [ 53.086905][ T5018] nilfs_segctor_do_construct+0x4993/0x6e30 [ 53.092879][ T5018] ? nilfs_transaction_unlock+0x210/0x210 [ 53.098670][ T5018] ? nilfs_segctor_confirm+0x24c/0x2d0 [ 53.104242][ T5018] ? do_raw_spin_lock+0x14d/0x3a0 [ 53.109318][ T5018] ? __lock_acquire+0x7f70/0x7f70 [ 53.114360][ T5018] ? do_raw_spin_unlock+0x13b/0x8b0 [ 53.119803][ T5018] ? _raw_spin_unlock+0x28/0x40 [ 53.124665][ T5018] ? nilfs_segctor_confirm+0x24c/0x2d0 [ 53.130185][ T5018] nilfs_segctor_construct+0x145/0x8c0 [ 53.135654][ T5018] ? trace_nilfs2_transaction_transition+0x9a/0x1f0 [ 53.142291][ T5018] nilfs_segctor_thread+0x53a/0x1140 [ 53.147631][ T5018] ? lockdep_hardirqs_on_prepare+0x43c/0x7a0 [ 53.153698][ T5018] ? nilfs_construction_timeout+0x40/0x40 [ 53.159545][ T5018] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 53.165551][ T5018] ? _raw_spin_unlock+0x40/0x40 [ 53.170471][ T5018] ? wake_bit_function+0x220/0x220 [ 53.175620][ T5018] ? _raw_spin_unlock+0x40/0x40 [ 53.181408][ T5018] ? lockdep_hardirqs_on_prepare+0x43c/0x7a0 [ 53.187549][ T5018] ? __kthread_parkme+0x164/0x1c0 [ 53.192588][ T5018] kthread+0x2b8/0x350 [ 53.196762][ T5018] ? nilfs_construction_timeout+0x40/0x40 [ 53.202636][ T5018] ? kthread_blkcg+0xd0/0xd0 [ 53.207319][ T5018] ret_from_fork+0x2e/0x60 [ 53.211808][ T5018] ? kthread_blkcg+0xd0/0xd0 [ 53.216429][ T5018] ret_from_fork_asm+0x11/0x20 [ 53.221270][ T5018] [ 53.224310][ T5018] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 53.231580][ T5018] CPU: 1 PID: 5018 Comm: segctord Not tainted 6.5.0-rc6-syzkaller-00200-gd4ddefee5160 #0 [ 53.241457][ T5018] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 53.251602][ T5018] Call Trace: [ 53.254865][ T5018] [ 53.257815][ T5018] dump_stack_lvl+0x1e7/0x2d0 [ 53.262481][ T5018] ? nf_tcp_handle_invalid+0x650/0x650 [ 53.268097][ T5018] ? panic+0x770/0x770 [ 53.272162][ T5018] ? vscnprintf+0x5d/0x80 [ 53.276479][ T5018] panic+0x30f/0x770 [ 53.280393][ T5018] ? __warn+0x171/0x4a0 [ 53.284555][ T5018] ? __memcpy_flushcache+0x2b0/0x2b0 [ 53.289831][ T5018] ? ret_from_fork_asm+0x11/0x20 [ 53.294758][ T5018] __warn+0x314/0x4a0 [ 53.298727][ T5018] ? nilfs_sufile_set_segment_usage+0x501/0x5f0 [ 53.304954][ T5018] report_bug+0x2b3/0x500 [ 53.309366][ T5018] ? nilfs_sufile_set_segment_usage+0x501/0x5f0 [ 53.315601][ T5018] handle_bug+0x3d/0x70 [ 53.319744][ T5018] exc_invalid_op+0x1a/0x50 [ 53.324275][ T5018] asm_exc_invalid_op+0x1a/0x20 [ 53.329121][ T5018] RIP: 0010:nilfs_sufile_set_segment_usage+0x501/0x5f0 [ 53.335967][ T5018] Code: 04 25 28 00 00 00 48 3b 84 24 a0 00 00 00 0f 85 f3 00 00 00 89 d8 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 4f 29 38 fe <0f> 0b e9 0f fe ff ff e8 43 29 38 fe e8 de f7 ac fd e9 be fe ff ff [ 53.355829][ T5018] RSP: 0018:ffffc90003baf5e0 EFLAGS: 00010293 [ 53.362028][ T5018] RAX: ffffffff83538ee1 RBX: 0000000000000004 RCX: ffff88807dbb1dc0 [ 53.369996][ T5018] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000000 [ 53.377960][ T5018] RBP: ffffc90003baf6d0 R08: ffffffff83538ce4 R09: ffffffff834ebcdb [ 53.386012][ T5018] R10: 0000000000000002 R11: ffff88807dbb1dc0 R12: dffffc0000000000 [ 53.394066][ T5018] R13: ffff88802ae1b000 R14: ffff8880753025e8 R15: 0000000000000060 [ 53.402036][ T5018] ? nilfs_mdt_read_block+0xfb/0x430 [ 53.407326][ T5018] ? nilfs_sufile_set_segment_usage+0x304/0x5f0 [ 53.413563][ T5018] ? nilfs_sufile_set_segment_usage+0x501/0x5f0 [ 53.419811][ T5018] ? nilfs_sufile_mark_dirty+0x510/0x510 [ 53.425879][ T5018] ? __asan_memcpy+0x40/0x70 [ 53.430495][ T5018] nilfs_segctor_do_construct+0x4993/0x6e30 [ 53.436523][ T5018] ? nilfs_transaction_unlock+0x210/0x210 [ 53.442278][ T5018] ? nilfs_segctor_confirm+0x24c/0x2d0 [ 53.447729][ T5018] ? do_raw_spin_lock+0x14d/0x3a0 [ 53.452747][ T5018] ? __lock_acquire+0x7f70/0x7f70 [ 53.457779][ T5018] ? do_raw_spin_unlock+0x13b/0x8b0 [ 53.462978][ T5018] ? _raw_spin_unlock+0x28/0x40 [ 53.467824][ T5018] ? nilfs_segctor_confirm+0x24c/0x2d0 [ 53.473297][ T5018] nilfs_segctor_construct+0x145/0x8c0 [ 53.478839][ T5018] ? trace_nilfs2_transaction_transition+0x9a/0x1f0 [ 53.485433][ T5018] nilfs_segctor_thread+0x53a/0x1140 [ 53.490739][ T5018] ? lockdep_hardirqs_on_prepare+0x43c/0x7a0 [ 53.496753][ T5018] ? nilfs_construction_timeout+0x40/0x40 [ 53.502579][ T5018] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 53.508472][ T5018] ? _raw_spin_unlock+0x40/0x40 [ 53.513317][ T5018] ? wake_bit_function+0x220/0x220 [ 53.518593][ T5018] ? _raw_spin_unlock+0x40/0x40 [ 53.523523][ T5018] ? lockdep_hardirqs_on_prepare+0x43c/0x7a0 [ 53.529497][ T5018] ? __kthread_parkme+0x164/0x1c0 [ 53.534546][ T5018] kthread+0x2b8/0x350 [ 53.538625][ T5018] ? nilfs_construction_timeout+0x40/0x40 [ 53.544335][ T5018] ? kthread_blkcg+0xd0/0xd0 [ 53.548917][ T5018] ret_from_fork+0x2e/0x60 [ 53.553325][ T5018] ? kthread_blkcg+0xd0/0xd0 [ 53.557923][ T5018] ret_from_fork_asm+0x11/0x20 [ 53.562702][ T5018] [ 53.565910][ T5018] Kernel Offset: disabled [ 53.570304][ T5018] Rebooting in 86400 seconds..