./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1134624472 <...> Warning: Permanently added '10.128.0.222' (ECDSA) to the list of known hosts. execve("./syz-executor1134624472", ["./syz-executor1134624472"], 0x7ffd62a9e450 /* 10 vars */) = 0 brk(NULL) = 0x555556da1000 brk(0x555556da1c40) = 0x555556da1c40 arch_prctl(ARCH_SET_FS, 0x555556da1300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor1134624472", 4096) = 28 brk(0x555556dc2c40) = 0x555556dc2c40 brk(0x555556dc3000) = 0x555556dc3000 mprotect(0x7ff1a9721000, 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 5065 attached , child_tidptr=0x555556da15d0) = 5065 [pid 5065] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5065] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5065] setsid() = 1 [pid 5065] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5065] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5065] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5065] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5065] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5065] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5065] unshare(CLONE_NEWNS) = 0 [pid 5065] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5065] unshare(CLONE_NEWIPC) = 0 [pid 5065] unshare(CLONE_NEWCGROUP) = 0 [pid 5065] unshare(CLONE_NEWUTS) = 0 [pid 5065] unshare(CLONE_SYSVSEM) = 0 [pid 5065] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5065] write(3, "16777216", 8) = 8 [pid 5065] close(3) = 0 [pid 5065] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5065] write(3, "536870912", 9) = 9 [pid 5065] close(3) = 0 [pid 5065] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5065] write(3, "1024", 4) = 4 [pid 5065] close(3) = 0 [pid 5065] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5065] write(3, "8192", 4) = 4 [pid 5065] close(3) = 0 [pid 5065] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5065] write(3, "1024", 4) = 4 [pid 5065] close(3) = 0 [pid 5065] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5065] write(3, "1024", 4) = 4 [pid 5065] close(3) = 0 [pid 5065] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5065] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5065] close(3) = 0 [pid 5065] getpid() = 1 [pid 5065] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b e9 36 f9 ff ff e8 59 b6 d2 ff e8 34 5a 5c 08 31 ff 41 89 c4 [ 43.207506][ T5065] RSP: 0018:ffffc90003c8fa60 EFLAGS: 00010093 [ 43.213578][ T5065] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 [ 43.221547][ T5065] RDX: ffff88802097d7c0 RSI: ffffffff81ae53bb RDI: 0000000000000005 [ 43.229516][ T5065] RBP: ffffea0000a09400 R08: 0000000000000005 R09: 0000000000000000 [ 43.237479][ T5065] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001 [ 43.245440][ T5065] R13: ffffffff8e75a000 R14: 0000000000000293 R15: ffff8880785acc48 [ 43.253401][ T5065] FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 43.262325][ T5065] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 43.268906][ T5065] CR2: 00000000200000c0 CR3: 000000007a129000 CR4: 0000000000350ee0 [ 43.276874][ T5065] Call Trace: [ 43.280140][ T5065] [ 43.283068][ T5065] mark_buffer_dirty+0x70d/0xa40 [ 43.288010][ T5065] gfs2_unpin+0x109/0xcf0 [ 43.292339][ T5065] buf_lo_after_commit+0x144/0x210 [ 43.297448][ T5065] ? gfs2_unpin+0xcf0/0xcf0 [ 43.301944][ T5065] gfs2_log_flush+0x140f/0x28a0 [ 43.306890][ T5065] ? gfs2_ail_drain+0x630/0x630 [ 43.311746][ T5065] gfs2_kill_sb+0x58/0x170 [ 43.316160][ T5065] deactivate_locked_super+0x98/0x160 [ 43.321529][ T5065] deactivate_super+0xb1/0xd0 [ 43.326207][ T5065] cleanup_mnt+0x2ae/0x3d0 [ 43.330625][ T5065] task_work_run+0x16f/0x270 [ 43.335218][ T5065] ? task_work_cancel+0x30/0x30 [ 43.340083][ T5065] do_exit+0xaa8/0x2950 [ 43.344501][ T5065] ? lock_downgrade+0x6e0/0x6e0 [ 43.349360][ T5065] ? do_raw_spin_lock+0x124/0x2b0 [ 43.354410][ T5065] ? mm_update_next_owner+0x7b0/0x7b0 [ 43.359785][ T5065] ? rwlock_bug.part.0+0x90/0x90 [ 43.364718][ T5065] ? _raw_spin_unlock_irq+0x23/0x50 [ 43.369939][ T5065] do_group_exit+0xd4/0x2a0 [ 43.374453][ T5065] __x64_sys_exit_group+0x3e/0x50 [ 43.379479][ T5065] do_syscall_64+0x39/0xb0 [ 43.383899][ T5065] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 43.389784][ T5065] RIP: 0033:0x7ff1a967a9c9 [ 43.394193][ T5065] Code: Unable to access opcode bytes at 0x7ff1a967a99f. [ 43.401195][ T5065] RSP: 002b:00007ffee090a4f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 43.409602][ T5065] RAX: ffffffffffffffda RBX: 00007ff1a9727330 RCX: 00007ff1a967a9c9 [ 43.417565][ T5065] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 43.425524][ T5065] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00007ff1a9721e40 [ 43.433482][ T5065] R10: 00007ffee090a410 R11: 0000000000000246 R12: 00007ff1a9727330 [ 43.441445][ T5065] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 43.449419][ T5065] [ 43.452427][ T5065] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 43.459691][ T5065] CPU: 1 PID: 5065 Comm: syz-executor113 Not tainted 6.2.0-rc8-syzkaller-00134-g38f8ccde04a3 #0 [ 43.470090][ T5065] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 [ 43.480133][ T5065] Call Trace: [ 43.483413][ T5065] [ 43.486336][ T5065] dump_stack_lvl+0xd1/0x138 [ 43.490927][ T5065] panic+0x2cc/0x626 [ 43.494827][ T5065] ? panic_print_sys_info.part.0+0x110/0x110 [ 43.500820][ T5065] ? __folio_mark_dirty+0xbcb/0xf80 [ 43.506016][ T5065] check_panic_on_warn.cold+0x19/0x35 [ 43.511384][ T5065] __warn+0xf2/0x1a0 [ 43.515277][ T5065] ? __folio_mark_dirty+0xbcb/0xf80 [ 43.520470][ T5065] report_bug+0x1c0/0x210 [ 43.524797][ T5065] handle_bug+0x3c/0x70 [ 43.529038][ T5065] exc_invalid_op+0x18/0x50 [ 43.533541][ T5065] asm_exc_invalid_op+0x1a/0x20 [ 43.538384][ T5065] RIP: 0010:__folio_mark_dirty+0xbcb/0xf80 [ 43.544284][ T5065] Code: 78 70 48 89 44 24 10 e8 23 59 5c 08 31 ff 89 c6 89 44 24 10 e8 26 b3 d2 ff 8b 44 24 10 85 c0 0f 85 42 f9 ff ff e8 65 b6 d2 ff <0f> 0b e9 36 f9 ff ff e8 59 b6 d2 ff e8 34 5a 5c 08 31 ff 41 89 c4 [ 43.563890][ T5065] RSP: 0018:ffffc90003c8fa60 EFLAGS: 00010093 [ 43.570039][ T5065] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 [ 43.578004][ T5065] RDX: ffff88802097d7c0 RSI: ffffffff81ae53bb RDI: 0000000000000005 [ 43.585970][ T5065] RBP: ffffea0000a09400 R08: 0000000000000005 R09: 0000000000000000 [ 43.594024][ T5065] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001 [ 43.601986][ T5065] R13: ffffffff8e75a000 R14: 0000000000000293 R15: ffff8880785acc48 [ 43.609957][ T5065] ? __folio_mark_dirty+0xbcb/0xf80 [ 43.615162][ T5065] mark_buffer_dirty+0x70d/0xa40 [ 43.620098][ T5065] gfs2_unpin+0x109/0xcf0 [ 43.624432][ T5065] buf_lo_after_commit+0x144/0x210 [ 43.629543][ T5065] ? gfs2_unpin+0xcf0/0xcf0 [ 43.634037][ T5065] gfs2_log_flush+0x140f/0x28a0 [ 43.638896][ T5065] ? gfs2_ail_drain+0x630/0x630 [ 43.643756][ T5065] gfs2_kill_sb+0x58/0x170 [ 43.648172][ T5065] deactivate_locked_super+0x98/0x160 [ 43.653544][ T5065] deactivate_super+0xb1/0xd0 [ 43.658223][ T5065] cleanup_mnt+0x2ae/0x3d0 [ 43.662639][ T5065] task_work_run+0x16f/0x270 [ 43.667320][ T5065] ? task_work_cancel+0x30/0x30 [ 43.672180][ T5065] do_exit+0xaa8/0x2950 [ 43.676342][ T5065] ? lock_downgrade+0x6e0/0x6e0 [ 43.681199][ T5065] ? do_raw_spin_lock+0x124/0x2b0 [ 43.686349][ T5065] ? mm_update_next_owner+0x7b0/0x7b0 [ 43.691729][ T5065] ? rwlock_bug.part.0+0x90/0x90 [ 43.696662][ T5065] ? _raw_spin_unlock_irq+0x23/0x50 [ 43.701886][ T5065] do_group_exit+0xd4/0x2a0 [ 43.706394][ T5065] __x64_sys_exit_group+0x3e/0x50 [ 43.711423][ T5065] do_syscall_64+0x39/0xb0 [ 43.715838][ T5065] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 43.721724][ T5065] RIP: 0033:0x7ff1a967a9c9 [ 43.726134][ T5065] Code: Unable to access opcode bytes at 0x7ff1a967a99f. [ 43.733156][ T5065] RSP: 002b:00007ffee090a4f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 43.741648][ T5065] RAX: ffffffffffffffda RBX: 00007ff1a9727330 RCX: 00007ff1a967a9c9 [ 43.749697][ T5065] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 43.757660][ T5065] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00007ff1a9721e40 [ 43.765623][ T5065] R10: 00007ffee090a410 R11: 0000000000000246 R12: 00007ff1a9727330 [ 43.773676][ T5065] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 43.781652][ T5065] [ 43.785603][ T5065] Kernel Offset: disabled [ 43.790102][ T5065] Rebooting in 86400 seconds..