./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3884528077 <...> DUID 00:04:a3:03:08:15:93:78:e3:1f:4c:1c:fb:56:e6:f5:4b:05 forked to background, child pid 4653 [ 35.850562][ T4654] 8021q: adding VLAN 0 to HW filter on device bond0 [ 35.874183][ T4654] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.9' (ECDSA) to the list of known hosts. execve("./syz-executor3884528077", ["./syz-executor3884528077"], 0x7ffea8a2a940 /* 10 vars */) = 0 brk(NULL) = 0x555555d12000 brk(0x555555d12c40) = 0x555555d12c40 arch_prctl(ARCH_SET_FS, 0x555555d12300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor3884528077", 4096) = 28 brk(0x555555d33c40) = 0x555555d33c40 brk(0x555555d34000) = 0x555555d34000 mprotect(0x7fbf39812000, 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 5078 attached , child_tidptr=0x555555d125d0) = 5078 [pid 5078] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5078] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5078] setsid() = 1 [pid 5078] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5078] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5078] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5078] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5078] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5078] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5078] unshare(CLONE_NEWNS) = 0 [pid 5078] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5078] unshare(CLONE_NEWIPC) = 0 [pid 5078] unshare(CLONE_NEWCGROUP) = 0 [pid 5078] unshare(CLONE_NEWUTS) = 0 [pid 5078] unshare(CLONE_SYSVSEM) = 0 [pid 5078] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5078] write(3, "16777216", 8) = 8 [pid 5078] close(3) = 0 [pid 5078] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5078] write(3, "536870912", 9) = 9 [pid 5078] close(3) = 0 [pid 5078] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5078] write(3, "1024", 4) = 4 [pid 5078] close(3) = 0 [pid 5078] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5078] write(3, "8192", 4) = 4 [pid 5078] close(3) = 0 [pid 5078] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5078] write(3, "1024", 4) = 4 [pid 5078] close(3) = 0 [pid 5078] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5078] write(3, "1024", 4) = 4 [pid 5078] close(3) = 0 [pid 5078] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5078] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5078] close(3) = 0 [pid 5078] getpid() = 1 [pid 5078] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b e9 36 f9 ff ff e8 09 d9 d1 ff e8 34 45 ba ff 31 ff 41 89 c4 [ 61.737628][ T5078] RSP: 0018:ffffc90003b2fa28 EFLAGS: 00010093 [ 61.743702][ T5078] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 [ 61.751663][ T5078] RDX: ffff888027579d40 RSI: ffffffff81b294cb RDI: 0000000000000005 [ 61.759634][ T5078] RBP: ffffea0000a74180 R08: 0000000000000005 R09: 0000000000000000 [ 61.767610][ T5078] R10: 0000000000000000 R11: 0000000000000003 R12: 0000000000000001 [ 61.775588][ T5078] R13: ffffffff8e75bf00 R14: 0000000000000293 R15: ffff88801d0b0d38 [ 61.783569][ T5078] FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 61.792515][ T5078] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 61.799108][ T5078] CR2: 00007fbf39816140 CR3: 0000000026e72000 CR4: 00000000003506f0 [ 61.807089][ T5078] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 61.815085][ T5078] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 61.823064][ T5078] Call Trace: [ 61.826358][ T5078] [ 61.829305][ T5078] mark_buffer_dirty+0x3e8/0x570 [ 61.834277][ T5078] gfs2_unpin+0x109/0xcf0 [ 61.838644][ T5078] buf_lo_after_commit+0x144/0x210 [ 61.843787][ T5078] ? gfs2_unpin+0xcf0/0xcf0 [ 61.848315][ T5078] gfs2_log_flush+0x140f/0x2900 [ 61.853201][ T5078] ? gfs2_ail_drain+0x630/0x630 [ 61.858084][ T5078] gfs2_kill_sb+0x6a/0x430 [ 61.862510][ T5078] ? rcu_read_lock_sched_held+0x3e/0x70 [ 61.868078][ T5078] ? kfree+0x146/0x1b0 [ 61.872165][ T5078] ? unregister_shrinker+0x200/0x300 [ 61.877473][ T5078] deactivate_locked_super+0x98/0x160 [ 61.882866][ T5078] deactivate_super+0xb1/0xd0 [ 61.887565][ T5078] cleanup_mnt+0x2ae/0x3d0 [ 61.892000][ T5078] task_work_run+0x16f/0x270 [ 61.896624][ T5078] ? task_work_cancel+0x30/0x30 [ 61.901514][ T5078] do_exit+0xb42/0x2b60 [ 61.905688][ T5078] ? mm_update_next_owner+0x7b0/0x7b0 [ 61.911078][ T5078] ? _raw_spin_unlock_irq+0x23/0x50 [ 61.916309][ T5078] do_group_exit+0xd4/0x2a0 [ 61.920826][ T5078] __x64_sys_exit_group+0x3e/0x50 [ 61.925863][ T5078] do_syscall_64+0x39/0xb0 [ 61.930313][ T5078] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 61.936225][ T5078] RIP: 0033:0x7fbf397909f9 [ 61.940648][ T5078] Code: Unable to access opcode bytes at 0x7fbf397909cf. [ 61.947668][ T5078] RSP: 002b:00007fffd5bb7098 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 61.956095][ T5078] RAX: ffffffffffffffda RBX: 00007fbf39818330 RCX: 00007fbf397909f9 [ 61.964076][ T5078] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 61.972056][ T5078] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00007fbf39812e40 [ 61.980036][ T5078] R10: 00007fffd5bb6fb0 R11: 0000000000000246 R12: 00007fbf39818330 [ 61.988017][ T5078] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 61.996017][ T5078] [ 61.999044][ T5078] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 62.006321][ T5078] CPU: 0 PID: 5078 Comm: syz-executor388 Not tainted 6.2.0-rc7-next-20230208-syzkaller #0 [ 62.016238][ T5078] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 [ 62.026306][ T5078] Call Trace: [ 62.029607][ T5078] [ 62.032546][ T5078] dump_stack_lvl+0xd9/0x150 [ 62.037177][ T5078] panic+0x61b/0x6c0 [ 62.041106][ T5078] ? panic_smp_self_stop+0x90/0x90 [ 62.046252][ T5078] ? show_trace_log_lvl+0x285/0x390 [ 62.051509][ T5078] ? __folio_mark_dirty+0xbcb/0xfa0 [ 62.056739][ T5078] check_panic_on_warn+0xb1/0xc0 [ 62.061706][ T5078] __warn+0xf2/0x4f0 [ 62.065634][ T5078] ? __folio_mark_dirty+0xbcb/0xfa0 [ 62.070868][ T5078] report_bug+0x2da/0x500 [ 62.075219][ T5078] handle_bug+0x3c/0x70 [ 62.079385][ T5078] exc_invalid_op+0x18/0x50 [ 62.083901][ T5078] asm_exc_invalid_op+0x1a/0x20 [ 62.088772][ T5078] RIP: 0010:__folio_mark_dirty+0xbcb/0xfa0 [ 62.094602][ T5078] Code: 78 70 48 89 44 24 10 e8 83 9c 61 08 31 ff 89 c6 89 44 24 10 e8 76 d5 d1 ff 8b 44 24 10 85 c0 0f 85 42 f9 ff ff e8 15 d9 d1 ff <0f> 0b e9 36 f9 ff ff e8 09 d9 d1 ff e8 34 45 ba ff 31 ff 41 89 c4 [ 62.114333][ T5078] RSP: 0018:ffffc90003b2fa28 EFLAGS: 00010093 [ 62.120411][ T5078] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 [ 62.128390][ T5078] RDX: ffff888027579d40 RSI: ffffffff81b294cb RDI: 0000000000000005 [ 62.136369][ T5078] RBP: ffffea0000a74180 R08: 0000000000000005 R09: 0000000000000000 [ 62.144344][ T5078] R10: 0000000000000000 R11: 0000000000000003 R12: 0000000000000001 [ 62.152320][ T5078] R13: ffffffff8e75bf00 R14: 0000000000000293 R15: ffff88801d0b0d38 [ 62.160311][ T5078] ? __folio_mark_dirty+0xbcb/0xfa0 [ 62.165543][ T5078] ? __folio_mark_dirty+0xbcb/0xfa0 [ 62.170773][ T5078] mark_buffer_dirty+0x3e8/0x570 [ 62.175746][ T5078] gfs2_unpin+0x109/0xcf0 [ 62.180109][ T5078] buf_lo_after_commit+0x144/0x210 [ 62.185247][ T5078] ? gfs2_unpin+0xcf0/0xcf0 [ 62.189777][ T5078] gfs2_log_flush+0x140f/0x2900 [ 62.194661][ T5078] ? gfs2_ail_drain+0x630/0x630 [ 62.199632][ T5078] gfs2_kill_sb+0x6a/0x430 [ 62.204058][ T5078] ? rcu_read_lock_sched_held+0x3e/0x70 [ 62.209623][ T5078] ? kfree+0x146/0x1b0 [ 62.213707][ T5078] ? unregister_shrinker+0x200/0x300 [ 62.219013][ T5078] deactivate_locked_super+0x98/0x160 [ 62.224404][ T5078] deactivate_super+0xb1/0xd0 [ 62.229106][ T5078] cleanup_mnt+0x2ae/0x3d0 [ 62.233539][ T5078] task_work_run+0x16f/0x270 [ 62.238180][ T5078] ? task_work_cancel+0x30/0x30 [ 62.243157][ T5078] do_exit+0xb42/0x2b60 [ 62.247334][ T5078] ? mm_update_next_owner+0x7b0/0x7b0 [ 62.252719][ T5078] ? _raw_spin_unlock_irq+0x23/0x50 [ 62.257949][ T5078] do_group_exit+0xd4/0x2a0 [ 62.262471][ T5078] __x64_sys_exit_group+0x3e/0x50 [ 62.267504][ T5078] do_syscall_64+0x39/0xb0 [ 62.271946][ T5078] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 62.277860][ T5078] RIP: 0033:0x7fbf397909f9 [ 62.282285][ T5078] Code: Unable to access opcode bytes at 0x7fbf397909cf. [ 62.289307][ T5078] RSP: 002b:00007fffd5bb7098 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 62.297733][ T5078] RAX: ffffffffffffffda RBX: 00007fbf39818330 RCX: 00007fbf397909f9 [ 62.305713][ T5078] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 62.313692][ T5078] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00007fbf39812e40 [ 62.321671][ T5078] R10: 00007fffd5bb6fb0 R11: 0000000000000246 R12: 00007fbf39818330 [ 62.329655][ T5078] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 62.337653][ T5078] [ 62.340826][ T5078] Kernel Offset: disabled [ 62.345324][ T5078] Rebooting in 86400 seconds..