./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2539007326 <...> Warning: Permanently added '10.128.10.2' (ECDSA) to the list of known hosts. execve("./syz-executor2539007326", ["./syz-executor2539007326"], 0x7ffe41c74110 /* 10 vars */) = 0 brk(NULL) = 0x5555563cc000 brk(0x5555563ccc40) = 0x5555563ccc40 arch_prctl(ARCH_SET_FS, 0x5555563cc300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor2539007326", 4096) = 28 brk(0x5555563edc40) = 0x5555563edc40 brk(0x5555563ee000) = 0x5555563ee000 mprotect(0x7efcc6ba1000, 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 5081 attached [pid 5081] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL [pid 5080] <... clone resumed>, child_tidptr=0x5555563cc5d0) = 5081 [pid 5081] <... mount resumed>) = -1 EBUSY (Device or resource busy) [pid 5081] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5081] setsid() = 1 [pid 5081] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5081] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5081] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5081] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5081] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5081] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5081] unshare(CLONE_NEWNS) = 0 [pid 5081] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5081] unshare(CLONE_NEWIPC) = 0 [pid 5081] unshare(CLONE_NEWCGROUP) = 0 [pid 5081] unshare(CLONE_NEWUTS) = 0 [pid 5081] unshare(CLONE_SYSVSEM) = 0 [pid 5081] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5081] write(3, "16777216", 8) = 8 [pid 5081] close(3) = 0 [pid 5081] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5081] write(3, "536870912", 9) = 9 [pid 5081] close(3) = 0 [pid 5081] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5081] write(3, "1024", 4) = 4 [pid 5081] close(3) = 0 [pid 5081] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5081] write(3, "8192", 4) = 4 [pid 5081] close(3) = 0 [pid 5081] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5081] write(3, "1024", 4) = 4 [pid 5081] close(3) = 0 [pid 5081] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5081] write(3, "1024", 4) = 4 [pid 5081] close(3) = 0 [pid 5081] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5081] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5081] close(3) = 0 [pid 5081] getpid() = 1 [pid 5081] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b e9 36 f9 ff ff e8 d9 7b d1 ff e8 64 a0 b9 ff 31 ff 41 89 c4 [ 49.640623][ T5081] RSP: 0018:ffffc9000404fa28 EFLAGS: 00010093 [ 49.646712][ T5081] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 [ 49.654685][ T5081] RDX: ffff88802b47ba80 RSI: ffffffff81b3867b RDI: 0000000000000005 [ 49.662653][ T5081] RBP: ffffea0001f93c80 R08: 0000000000000005 R09: 0000000000000000 [ 49.670648][ T5081] R10: 0000000000000000 R11: 0000000000000003 R12: 0000000000000001 [ 49.678646][ T5081] R13: ffffffff8e7847c0 R14: 0000000000000293 R15: ffff88802a46cc50 [ 49.686624][ T5081] FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 49.695560][ T5081] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 49.702145][ T5081] CR2: 00007fd66b0fb000 CR3: 000000000c571000 CR4: 0000000000350ef0 [ 49.710125][ T5081] Call Trace: [ 49.713531][ T5081] [ 49.716472][ T5081] mark_buffer_dirty+0x3e8/0x570 [ 49.721453][ T5081] gfs2_unpin+0x109/0xcf0 [ 49.725811][ T5081] buf_lo_after_commit+0x144/0x210 [ 49.730948][ T5081] ? gfs2_unpin+0xcf0/0xcf0 [ 49.735464][ T5081] gfs2_log_flush+0x140f/0x2900 [ 49.740333][ T5081] ? gfs2_ail_drain+0x630/0x630 [ 49.745229][ T5081] gfs2_kill_sb+0x6a/0x430 [ 49.749797][ T5081] ? rcu_read_lock_sched_held+0x3e/0x70 [ 49.755353][ T5081] ? kfree+0x146/0x1b0 [ 49.759432][ T5081] ? unregister_shrinker+0x200/0x300 [ 49.764841][ T5081] deactivate_locked_super+0x98/0x160 [ 49.770319][ T5081] deactivate_super+0xb1/0xd0 [ 49.775018][ T5081] cleanup_mnt+0x2ae/0x3d0 [ 49.779452][ T5081] task_work_run+0x16f/0x270 [ 49.784057][ T5081] ? task_work_cancel+0x30/0x30 [ 49.788936][ T5081] do_exit+0xad3/0x2a40 [ 49.793106][ T5081] ? mm_update_next_owner+0x7b0/0x7b0 [ 49.798504][ T5081] ? _raw_spin_unlock_irq+0x23/0x50 [ 49.803721][ T5081] do_group_exit+0xd4/0x2a0 [ 49.808238][ T5081] __x64_sys_exit_group+0x3e/0x50 [ 49.813294][ T5081] do_syscall_64+0x39/0xb0 [ 49.817754][ T5081] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 49.823666][ T5081] RIP: 0033:0x7efcc6afa9c9 [ 49.828093][ T5081] Code: Unable to access opcode bytes at 0x7efcc6afa99f. [ 49.835226][ T5081] RSP: 002b:00007ffcfb592d38 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 49.843645][ T5081] RAX: ffffffffffffffda RBX: 00007efcc6ba7330 RCX: 00007efcc6afa9c9 [ 49.851624][ T5081] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 49.859599][ T5081] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00007efcc6ba1e40 [ 49.867578][ T5081] R10: 00007ffcfb592c50 R11: 0000000000000246 R12: 00007efcc6ba7330 [ 49.875574][ T5081] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 49.883590][ T5081] [ 49.886615][ T5081] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 49.893896][ T5081] CPU: 0 PID: 5081 Comm: syz-executor253 Not tainted 6.2.0-syzkaller-12018-g2fcd07b7ccd5 #0 [ 49.903968][ T5081] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023 [ 49.914049][ T5081] Call Trace: [ 49.917333][ T5081] [ 49.920263][ T5081] dump_stack_lvl+0xd9/0x150 [ 49.924866][ T5081] panic+0x61b/0x6c0 [ 49.928769][ T5081] ? panic_smp_self_stop+0x90/0x90 [ 49.933888][ T5081] ? show_trace_log_lvl+0x285/0x390 [ 49.939140][ T5081] ? __folio_mark_dirty+0xbcb/0xfa0 [ 49.944360][ T5081] check_panic_on_warn+0xb1/0xc0 [ 49.949349][ T5081] __warn+0xf2/0x4f0 [ 49.953255][ T5081] ? __folio_mark_dirty+0xbcb/0xfa0 [ 49.958468][ T5081] report_bug+0x2da/0x500 [ 49.962810][ T5081] handle_bug+0x3c/0x70 [ 49.966971][ T5081] exc_invalid_op+0x18/0x50 [ 49.971482][ T5081] asm_exc_invalid_op+0x1a/0x20 [ 49.976432][ T5081] RIP: 0010:__folio_mark_dirty+0xbcb/0xfa0 [ 49.982251][ T5081] Code: 78 70 48 89 44 24 10 e8 73 f4 63 08 31 ff 89 c6 89 44 24 10 e8 46 78 d1 ff 8b 44 24 10 85 c0 0f 85 42 f9 ff ff e8 e5 7b d1 ff <0f> 0b e9 36 f9 ff ff e8 d9 7b d1 ff e8 64 a0 b9 ff 31 ff 41 89 c4 [ 50.001871][ T5081] RSP: 0018:ffffc9000404fa28 EFLAGS: 00010093 [ 50.007945][ T5081] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 [ 50.015934][ T5081] RDX: ffff88802b47ba80 RSI: ffffffff81b3867b RDI: 0000000000000005 [ 50.023914][ T5081] RBP: ffffea0001f93c80 R08: 0000000000000005 R09: 0000000000000000 [ 50.031893][ T5081] R10: 0000000000000000 R11: 0000000000000003 R12: 0000000000000001 [ 50.039961][ T5081] R13: ffffffff8e7847c0 R14: 0000000000000293 R15: ffff88802a46cc50 [ 50.047950][ T5081] ? __folio_mark_dirty+0xbcb/0xfa0 [ 50.053170][ T5081] ? __folio_mark_dirty+0xbcb/0xfa0 [ 50.058388][ T5081] mark_buffer_dirty+0x3e8/0x570 [ 50.063338][ T5081] gfs2_unpin+0x109/0xcf0 [ 50.067710][ T5081] buf_lo_after_commit+0x144/0x210 [ 50.072846][ T5081] ? gfs2_unpin+0xcf0/0xcf0 [ 50.077352][ T5081] gfs2_log_flush+0x140f/0x2900 [ 50.082217][ T5081] ? gfs2_ail_drain+0x630/0x630 [ 50.087079][ T5081] gfs2_kill_sb+0x6a/0x430 [ 50.091501][ T5081] ? rcu_read_lock_sched_held+0x3e/0x70 [ 50.097051][ T5081] ? kfree+0x146/0x1b0 [ 50.101123][ T5081] ? unregister_shrinker+0x200/0x300 [ 50.106420][ T5081] deactivate_locked_super+0x98/0x160 [ 50.111887][ T5081] deactivate_super+0xb1/0xd0 [ 50.116571][ T5081] cleanup_mnt+0x2ae/0x3d0 [ 50.120991][ T5081] task_work_run+0x16f/0x270 [ 50.125596][ T5081] ? task_work_cancel+0x30/0x30 [ 50.130727][ T5081] do_exit+0xad3/0x2a40 [ 50.134896][ T5081] ? mm_update_next_owner+0x7b0/0x7b0 [ 50.140288][ T5081] ? _raw_spin_unlock_irq+0x23/0x50 [ 50.145513][ T5081] do_group_exit+0xd4/0x2a0 [ 50.150051][ T5081] __x64_sys_exit_group+0x3e/0x50 [ 50.155079][ T5081] do_syscall_64+0x39/0xb0 [ 50.159500][ T5081] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 50.165404][ T5081] RIP: 0033:0x7efcc6afa9c9 [ 50.169814][ T5081] Code: Unable to access opcode bytes at 0x7efcc6afa99f. [ 50.176830][ T5081] RSP: 002b:00007ffcfb592d38 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 50.185249][ T5081] RAX: ffffffffffffffda RBX: 00007efcc6ba7330 RCX: 00007efcc6afa9c9 [ 50.193221][ T5081] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 50.201224][ T5081] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00007efcc6ba1e40 [ 50.209227][ T5081] R10: 00007ffcfb592c50 R11: 0000000000000246 R12: 00007efcc6ba7330 [ 50.217205][ T5081] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 50.225193][ T5081] [ 50.228617][ T5081] Kernel Offset: disabled [ 50.233144][ T5081] Rebooting in 86400 seconds..