./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3688877592 <...> Warning: Permanently added '10.128.0.88' (ECDSA) to the list of known hosts. execve("./syz-executor3688877592", ["./syz-executor3688877592"], 0x7ffffde96dc0 /* 10 vars */) = 0 brk(NULL) = 0x55555745c000 brk(0x55555745cc40) = 0x55555745cc40 arch_prctl(ARCH_SET_FS, 0x55555745c300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor3688877592", 4096) = 28 brk(0x55555747dc40) = 0x55555747dc40 brk(0x55555747e000) = 0x55555747e000 mprotect(0x7f87e301d000, 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 getpid() = 3602 mkdir("./syzkaller.vL68Qx", 0700) = 0 chmod("./syzkaller.vL68Qx", 0777) = 0 chdir("./syzkaller.vL68Qx") = 0 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3603 attached , child_tidptr=0x55555745c5d0) = 3603 [pid 3603] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 3603] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3603] setsid() = 1 [pid 3603] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 3603] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 3603] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 3603] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 3603] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 3603] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 3603] unshare(CLONE_NEWNS) = 0 [pid 3603] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 3603] unshare(CLONE_NEWIPC) = 0 [pid 3603] unshare(CLONE_NEWCGROUP) = 0 [pid 3603] unshare(CLONE_NEWUTS) = 0 [pid 3603] unshare(CLONE_SYSVSEM) = 0 [pid 3603] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3603] write(3, "16777216", 8) = 8 [pid 3603] close(3) = 0 [pid 3603] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 3603] write(3, "536870912", 9) = 9 [pid 3603] close(3) = 0 [pid 3603] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3603] write(3, "1024", 4) = 4 [pid 3603] close(3) = 0 [pid 3603] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3603] write(3, "8192", 4) = 4 [pid 3603] close(3) = 0 [pid 3603] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3603] write(3, "1024", 4) = 4 [pid 3603] close(3) = 0 [pid 3603] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 3603] write(3, "1024", 4) = 4 [pid 3603] close(3) = 0 [pid 3603] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 3603] write(3, "1024 1048576 500 1024", 21) = 21 [pid 3603] close(3) = 0 [pid 3603] getpid() = 1 [pid 3603] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b 5b 5d 41 5c e9 3e a6 94 ff e8 39 a6 94 ff be 04 00 00 00 48 [ 34.700161][ T3603] RSP: 0018:ffffc90003fcfad8 EFLAGS: 00010086 [ 34.706474][ T3603] RAX: 0000000000000000 RBX: ffff888070848cb0 RCX: 0000000000000000 [ 34.714601][ T3603] RDX: ffff8880249d0000 RSI: ffffffff8160f738 RDI: fffff520007f9f4d [ 34.722555][ T3603] RBP: ffff888070848d10 R08: 0000000000000005 R09: 0000000000000000 [ 34.730621][ T3603] R10: 0000000080000002 R11: 000000003a534656 R12: 0000000000000000 [ 34.738664][ T3603] R13: dffffc0000000000 R14: ffff8880b9b35f80 R15: dffffc0000000000 [ 34.746797][ T3603] FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 [ 34.755889][ T3603] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 34.762657][ T3603] CR2: 00007f87e3024290 CR3: 000000000bc8e000 CR4: 0000000000350ee0 [ 34.770618][ T3603] Call Trace: [ 34.774401][ T3603] [ 34.777318][ T3603] invalidate_bh_lru+0x99/0x150 [ 34.782185][ T3603] smp_call_function_many_cond+0x100e/0x1420 [ 34.788164][ T3603] ? generic_remap_file_range_prep+0x50/0x50 [ 34.794158][ T3603] ? __brelse+0xa0/0xa0 [ 34.798304][ T3603] ? smp_call_on_cpu+0x270/0x270 [ 34.803229][ T3603] ? rcu_read_lock_sched_held+0xd/0x70 [ 34.808677][ T3603] ? lock_release+0x560/0x780 [ 34.813365][ T3603] ? __brelse+0xa0/0xa0 [ 34.817502][ T3603] ? generic_remap_file_range_prep+0x50/0x50 [ 34.823464][ T3603] on_each_cpu_cond_mask+0x56/0xa0 [ 34.828566][ T3603] blkdev_flush_mapping+0x136/0x2f0 [ 34.833756][ T3603] blkdev_put_whole+0xd1/0xf0 [ 34.838423][ T3603] blkdev_put+0x226/0x770 [ 34.842741][ T3603] deactivate_locked_super+0x94/0x160 [ 34.848126][ T3603] deactivate_super+0xad/0xd0 [ 34.852964][ T3603] cleanup_mnt+0x2ae/0x3d0 [ 34.857371][ T3603] task_work_run+0xdd/0x1a0 [ 34.861865][ T3603] do_exit+0xad5/0x29b0 [ 34.866013][ T3603] ? mm_update_next_owner+0x7a0/0x7a0 [ 34.871405][ T3603] do_group_exit+0xd2/0x2f0 [ 34.875903][ T3603] __x64_sys_exit_group+0x3a/0x50 [ 34.880916][ T3603] do_syscall_64+0x35/0xb0 [ 34.885321][ T3603] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 34.891199][ T3603] RIP: 0033:0x7f87e2facd39 [ 34.895593][ T3603] Code: Unable to access opcode bytes at 0x7f87e2facd0f. [ 34.902588][ T3603] RSP: 002b:00007ffdf1f6e508 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 34.911008][ T3603] RAX: ffffffffffffffda RBX: 00007f87e30233f0 RCX: 00007f87e2facd39 [ 34.918991][ T3603] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 34.926942][ T3603] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 0000000000000001 [ 34.934896][ T3603] R10: 0000000000000001 R11: 0000000000000246 R12: 00007f87e30233f0 [ 34.942853][ T3603] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 34.950817][ T3603] [ 34.953819][ T3603] Kernel panic - not syncing: panic_on_warn set ... [ 34.960384][ T3603] CPU: 1 PID: 3603 Comm: syz-executor368 Not tainted 6.0.0-syzkaller-09039-ga6afa4199d3d #0 [ 34.970427][ T3603] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 34.980462][ T3603] Call Trace: [ 34.983722][ T3603] [ 34.986635][ T3603] dump_stack_lvl+0xcd/0x134 [ 34.991212][ T3603] panic+0x2c8/0x622 [ 34.995098][ T3603] ? panic_print_sys_info.part.0+0x10b/0x10b [ 35.001071][ T3603] ? __warn.cold+0x248/0x2c4 [ 35.005651][ T3603] ? __brelse+0x67/0xa0 [ 35.009790][ T3603] __warn.cold+0x259/0x2c4 [ 35.014201][ T3603] ? __brelse+0x67/0xa0 [ 35.018344][ T3603] report_bug+0x1bc/0x210 [ 35.022663][ T3603] handle_bug+0x3c/0x70 [ 35.026809][ T3603] exc_invalid_op+0x14/0x40 [ 35.031306][ T3603] asm_exc_invalid_op+0x16/0x20 [ 35.036142][ T3603] RIP: 0010:__brelse+0x67/0xa0 [ 35.040892][ T3603] Code: 7c 04 84 d2 75 4e 44 8b 63 60 31 ff 44 89 e6 e8 1f a3 94 ff 45 85 e4 75 1c e8 55 a6 94 ff 48 c7 c7 80 9d fc 89 e8 65 5d 57 07 <0f> 0b 5b 5d 41 5c e9 3e a6 94 ff e8 39 a6 94 ff be 04 00 00 00 48 [ 35.060862][ T3603] RSP: 0018:ffffc90003fcfad8 EFLAGS: 00010086 [ 35.066909][ T3603] RAX: 0000000000000000 RBX: ffff888070848cb0 RCX: 0000000000000000 [ 35.074862][ T3603] RDX: ffff8880249d0000 RSI: ffffffff8160f738 RDI: fffff520007f9f4d [ 35.082819][ T3603] RBP: ffff888070848d10 R08: 0000000000000005 R09: 0000000000000000 [ 35.090774][ T3603] R10: 0000000080000002 R11: 000000003a534656 R12: 0000000000000000 [ 35.098733][ T3603] R13: dffffc0000000000 R14: ffff8880b9b35f80 R15: dffffc0000000000 [ 35.106804][ T3603] ? vprintk+0x88/0x90 [ 35.110889][ T3603] ? __brelse+0x67/0xa0 [ 35.115034][ T3603] invalidate_bh_lru+0x99/0x150 [ 35.119874][ T3603] smp_call_function_many_cond+0x100e/0x1420 [ 35.125866][ T3603] ? generic_remap_file_range_prep+0x50/0x50 [ 35.131833][ T3603] ? __brelse+0xa0/0xa0 [ 35.135984][ T3603] ? smp_call_on_cpu+0x270/0x270 [ 35.140927][ T3603] ? rcu_read_lock_sched_held+0xd/0x70 [ 35.146393][ T3603] ? lock_release+0x560/0x780 [ 35.151052][ T3603] ? __brelse+0xa0/0xa0 [ 35.155196][ T3603] ? generic_remap_file_range_prep+0x50/0x50 [ 35.161159][ T3603] on_each_cpu_cond_mask+0x56/0xa0 [ 35.166257][ T3603] blkdev_flush_mapping+0x136/0x2f0 [ 35.171451][ T3603] blkdev_put_whole+0xd1/0xf0 [ 35.176119][ T3603] blkdev_put+0x226/0x770 [ 35.180526][ T3603] deactivate_locked_super+0x94/0x160 [ 35.186166][ T3603] deactivate_super+0xad/0xd0 [ 35.190837][ T3603] cleanup_mnt+0x2ae/0x3d0 [ 35.195246][ T3603] task_work_run+0xdd/0x1a0 [ 35.200002][ T3603] do_exit+0xad5/0x29b0 [ 35.204263][ T3603] ? mm_update_next_owner+0x7a0/0x7a0 [ 35.209663][ T3603] do_group_exit+0xd2/0x2f0 [ 35.214160][ T3603] __x64_sys_exit_group+0x3a/0x50 [ 35.219177][ T3603] do_syscall_64+0x35/0xb0 [ 35.223583][ T3603] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 35.229464][ T3603] RIP: 0033:0x7f87e2facd39 [ 35.234035][ T3603] Code: Unable to access opcode bytes at 0x7f87e2facd0f. [ 35.241060][ T3603] RSP: 002b:00007ffdf1f6e508 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 35.249463][ T3603] RAX: ffffffffffffffda RBX: 00007f87e30233f0 RCX: 00007f87e2facd39 [ 35.257416][ T3603] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 35.265366][ T3603] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 0000000000000001 [ 35.273352][ T3603] R10: 0000000000000001 R11: 0000000000000246 R12: 00007f87e30233f0 [ 35.281481][ T3603] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 35.289438][ T3603] [ 35.293144][ T3603] Kernel Offset: disabled [ 35.297458][ T3603] Rebooting in 86400 seconds..