./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2084211475 <...> forked to background, child pid 4643 no interfaces have a carrier [ 23.527449][ T4644] 8021q: adding VLAN 0 to HW filter on device bond0 [ 23.536162][ T4644] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.107' (ECDSA) to the list of known hosts. execve("./syz-executor2084211475", ["./syz-executor2084211475"], 0x7ffcf77c9f70 /* 10 vars */) = 0 brk(NULL) = 0x555557237000 brk(0x555557237c40) = 0x555557237c40 arch_prctl(ARCH_SET_FS, 0x555557237300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor2084211475", 4096) = 28 brk(0x555557258c40) = 0x555557258c40 brk(0x555557259000) = 0x555557259000 mprotect(0x7f637ebb4000, 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=0x5555572375d0) = 5072 ./strace-static-x86_64: Process 5072 attached [pid 5072] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5072] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5072] setsid() = 1 [pid 5072] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5072] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5072] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5072] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5072] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5072] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5072] unshare(CLONE_NEWNS) = 0 [pid 5072] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5072] unshare(CLONE_NEWIPC) = 0 [pid 5072] unshare(CLONE_NEWCGROUP) = 0 [pid 5072] unshare(CLONE_NEWUTS) = 0 [pid 5072] unshare(CLONE_SYSVSEM) = 0 [pid 5072] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5072] write(3, "16777216", 8) = 8 [pid 5072] close(3) = 0 [pid 5072] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5072] write(3, "536870912", 9) = 9 [pid 5072] close(3) = 0 [pid 5072] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5072] write(3, "1024", 4) = 4 [pid 5072] close(3) = 0 [pid 5072] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5072] write(3, "8192", 4) = 4 [pid 5072] close(3) = 0 [pid 5072] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5072] write(3, "1024", 4) = 4 [pid 5072] close(3) = 0 [pid 5072] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5072] write(3, "1024", 4) = 4 [pid 5072] close(3) = 0 [pid 5072] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5072] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5072] close(3) = 0 [pid 5072] getpid() = 1 [pid 5072] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b e9 36 f9 ff ff e8 29 b7 d2 ff e8 24 32 5a 08 31 ff 41 89 c4 [ 43.025297][ T5072] RSP: 0018:ffffc90003e3fa60 EFLAGS: 00010093 [ 43.031373][ T5072] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 [ 43.039427][ T5072] RDX: ffff888027e757c0 RSI: ffffffff81ae3bab RDI: 0000000000000005 [ 43.047419][ T5072] RBP: ffffea0000a9ae40 R08: 0000000000000005 R09: 0000000000000000 [ 43.055388][ T5072] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001 [ 43.063351][ T5072] R13: ffffffff8e733d80 R14: 0000000000000293 R15: ffff888028fb0c48 [ 43.071313][ T5072] FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 43.080237][ T5072] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 43.086810][ T5072] CR2: 00007fff5cff7ff0 CR3: 000000002ae95000 CR4: 0000000000350ee0 [ 43.094778][ T5072] Call Trace: [ 43.098057][ T5072] [ 43.100992][ T5072] mark_buffer_dirty+0x70d/0xa40 [ 43.105936][ T5072] gfs2_unpin+0x109/0xcf0 [ 43.110280][ T5072] buf_lo_after_commit+0x144/0x210 [ 43.115433][ T5072] ? gfs2_unpin+0xcf0/0xcf0 [ 43.119945][ T5072] gfs2_log_flush+0x140f/0x28a0 [ 43.124809][ T5072] ? gfs2_ail_drain+0x630/0x630 [ 43.129674][ T5072] gfs2_kill_sb+0x58/0x170 [ 43.134110][ T5072] deactivate_locked_super+0x98/0x160 [ 43.139489][ T5072] deactivate_super+0xb1/0xd0 [ 43.144167][ T5072] cleanup_mnt+0x2ae/0x3d0 [ 43.148604][ T5072] task_work_run+0x16f/0x270 [ 43.153202][ T5072] ? task_work_cancel+0x30/0x30 [ 43.158068][ T5072] do_exit+0xaa8/0x2950 [ 43.162227][ T5072] ? lock_downgrade+0x6e0/0x6e0 [ 43.167087][ T5072] ? do_raw_spin_lock+0x124/0x2b0 [ 43.172134][ T5072] ? mm_update_next_owner+0x7b0/0x7b0 [ 43.177508][ T5072] ? rwlock_bug.part.0+0x90/0x90 [ 43.182444][ T5072] ? _raw_spin_unlock_irq+0x23/0x50 [ 43.187653][ T5072] do_group_exit+0xd4/0x2a0 [ 43.192164][ T5072] __x64_sys_exit_group+0x3e/0x50 [ 43.197189][ T5072] do_syscall_64+0x39/0xb0 [ 43.201605][ T5072] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 43.207500][ T5072] RIP: 0033:0x7f637eb0d9c9 [ 43.211904][ T5072] Code: Unable to access opcode bytes at 0x7f637eb0d99f. [ 43.218910][ T5072] RSP: 002b:00007ffdf59a8778 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 43.227510][ T5072] RAX: ffffffffffffffda RBX: 00007f637ebba330 RCX: 00007f637eb0d9c9 [ 43.235482][ T5072] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 43.243479][ T5072] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00007f637ebb4e40 [ 43.251531][ T5072] R10: 00007ffdf59a8690 R11: 0000000000000246 R12: 00007f637ebba330 [ 43.259500][ T5072] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 43.267485][ T5072] [ 43.270501][ T5072] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 43.278037][ T5072] CPU: 1 PID: 5072 Comm: syz-executor208 Not tainted 6.2.0-rc7-syzkaller-00002-gd2d11f342b17 #0 [ 43.288622][ T5072] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 [ 43.298681][ T5072] Call Trace: [ 43.301998][ T5072] [ 43.304925][ T5072] dump_stack_lvl+0xd1/0x138 [ 43.309519][ T5072] panic+0x2cc/0x626 [ 43.313587][ T5072] ? panic_print_sys_info.part.0+0x110/0x110 [ 43.319580][ T5072] ? __folio_mark_dirty+0xbcb/0xf80 [ 43.324779][ T5072] check_panic_on_warn.cold+0x19/0x35 [ 43.330150][ T5072] __warn+0xf2/0x1a0 [ 43.334046][ T5072] ? __folio_mark_dirty+0xbcb/0xf80 [ 43.339254][ T5072] report_bug+0x1c0/0x210 [ 43.343590][ T5072] handle_bug+0x3c/0x70 [ 43.347772][ T5072] exc_invalid_op+0x18/0x50 [ 43.352280][ T5072] asm_exc_invalid_op+0x1a/0x20 [ 43.357144][ T5072] RIP: 0010:__folio_mark_dirty+0xbcb/0xf80 [ 43.362952][ T5072] Code: 78 70 48 89 44 24 10 e8 13 31 5a 08 31 ff 89 c6 89 44 24 10 e8 f6 b3 d2 ff 8b 44 24 10 85 c0 0f 85 42 f9 ff ff e8 35 b7 d2 ff <0f> 0b e9 36 f9 ff ff e8 29 b7 d2 ff e8 24 32 5a 08 31 ff 41 89 c4 [ 43.382683][ T5072] RSP: 0018:ffffc90003e3fa60 EFLAGS: 00010093 [ 43.388775][ T5072] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 [ 43.396746][ T5072] RDX: ffff888027e757c0 RSI: ffffffff81ae3bab RDI: 0000000000000005 [ 43.404889][ T5072] RBP: ffffea0000a9ae40 R08: 0000000000000005 R09: 0000000000000000 [ 43.412857][ T5072] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001 [ 43.420829][ T5072] R13: ffffffff8e733d80 R14: 0000000000000293 R15: ffff888028fb0c48 [ 43.428830][ T5072] ? __folio_mark_dirty+0xbcb/0xf80 [ 43.434129][ T5072] mark_buffer_dirty+0x70d/0xa40 [ 43.439070][ T5072] gfs2_unpin+0x109/0xcf0 [ 43.443432][ T5072] buf_lo_after_commit+0x144/0x210 [ 43.448551][ T5072] ? gfs2_unpin+0xcf0/0xcf0 [ 43.453274][ T5072] gfs2_log_flush+0x140f/0x28a0 [ 43.458140][ T5072] ? gfs2_ail_drain+0x630/0x630 [ 43.463003][ T5072] gfs2_kill_sb+0x58/0x170 [ 43.467418][ T5072] deactivate_locked_super+0x98/0x160 [ 43.472794][ T5072] deactivate_super+0xb1/0xd0 [ 43.477520][ T5072] cleanup_mnt+0x2ae/0x3d0 [ 43.481945][ T5072] task_work_run+0x16f/0x270 [ 43.486538][ T5072] ? task_work_cancel+0x30/0x30 [ 43.491396][ T5072] do_exit+0xaa8/0x2950 [ 43.495556][ T5072] ? lock_downgrade+0x6e0/0x6e0 [ 43.500414][ T5072] ? do_raw_spin_lock+0x124/0x2b0 [ 43.505433][ T5072] ? mm_update_next_owner+0x7b0/0x7b0 [ 43.510811][ T5072] ? rwlock_bug.part.0+0x90/0x90 [ 43.515753][ T5072] ? _raw_spin_unlock_irq+0x23/0x50 [ 43.520978][ T5072] do_group_exit+0xd4/0x2a0 [ 43.525504][ T5072] __x64_sys_exit_group+0x3e/0x50 [ 43.530669][ T5072] do_syscall_64+0x39/0xb0 [ 43.535088][ T5072] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 43.541079][ T5072] RIP: 0033:0x7f637eb0d9c9 [ 43.545489][ T5072] Code: Unable to access opcode bytes at 0x7f637eb0d99f. [ 43.552524][ T5072] RSP: 002b:00007ffdf59a8778 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 43.560933][ T5072] RAX: ffffffffffffffda RBX: 00007f637ebba330 RCX: 00007f637eb0d9c9 [ 43.568926][ T5072] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 43.576890][ T5072] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00007f637ebb4e40 [ 43.584859][ T5072] R10: 00007ffdf59a8690 R11: 0000000000000246 R12: 00007f637ebba330 [ 43.592833][ T5072] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 43.600852][ T5072] [ 43.604386][ T5072] Kernel Offset: disabled [ 43.608904][ T5072] Rebooting in 86400 seconds..