./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor827402245 <...> forked to background, child pid 4641 no interfaces have a carrier [ 28.362528][ T4642] 8021q: adding VLAN 0 to HW filter on device bond0 [ 28.374147][ T4642] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.44' (ECDSA) to the list of known hosts. execve("./syz-executor827402245", ["./syz-executor827402245"], 0x7ffc0c6c6080 /* 10 vars */) = 0 brk(NULL) = 0x555555a04000 brk(0x555555a04c40) = 0x555555a04c40 arch_prctl(ARCH_SET_FS, 0x555555a04300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor827402245", 4096) = 27 brk(0x555555a25c40) = 0x555555a25c40 brk(0x555555a26000) = 0x555555a26000 mprotect(0x7fc8f40cd000, 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 5064 attached , child_tidptr=0x555555a045d0) = 5064 [pid 5064] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5064] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5064] setsid() = 1 [pid 5064] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5064] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5064] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5064] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5064] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5064] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5064] unshare(CLONE_NEWNS) = 0 [pid 5064] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5064] unshare(CLONE_NEWIPC) = 0 [pid 5064] unshare(CLONE_NEWCGROUP) = 0 [pid 5064] unshare(CLONE_NEWUTS) = 0 [pid 5064] unshare(CLONE_SYSVSEM) = 0 [pid 5064] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5064] write(3, "16777216", 8) = 8 [pid 5064] close(3) = 0 [pid 5064] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5064] write(3, "536870912", 9) = 9 [pid 5064] close(3) = 0 [pid 5064] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5064] write(3, "1024", 4) = 4 [pid 5064] close(3) = 0 [pid 5064] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5064] write(3, "8192", 4) = 4 [pid 5064] close(3) = 0 [pid 5064] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5064] write(3, "1024", 4) = 4 [pid 5064] close(3) = 0 [pid 5064] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5064] write(3, "1024", 4) = 4 [pid 5064] close(3) = 0 [pid 5064] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5064] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5064] close(3) = 0 [pid 5064] getpid() = 1 [pid 5064] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b e9 56 f9 ff ff e8 3c c1 d2 ff e8 07 c5 4a 08 31 ff 41 89 c4 [ 55.305402][ T5064] RSP: 0018:ffffc90003e9fa60 EFLAGS: 00010093 [ 55.311472][ T5064] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 [ 55.319449][ T5064] RDX: ffff888020bf57c0 RSI: ffffffff81ae8fb8 RDI: 0000000000000005 [ 55.327420][ T5064] RBP: ffffea0001e9e800 R08: 0000000000000005 R09: 0000000000000000 [ 55.335386][ T5064] R10: 0000000000000000 R11: 0000000000000001 R12: ffff888012494978 [ 55.343441][ T5064] R13: ffffffff8e529a00 R14: 0000000000000293 R15: ffff88807c0c4c48 [ 55.351406][ T5064] FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 [ 55.360339][ T5064] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.366938][ T5064] CR2: 00005635cb5bc520 CR3: 0000000020713000 CR4: 0000000000350ee0 [ 55.374995][ T5064] Call Trace: [ 55.378268][ T5064] [ 55.381198][ T5064] mark_buffer_dirty+0x70d/0xa40 [ 55.386149][ T5064] gfs2_unpin+0x109/0xcf0 [ 55.390487][ T5064] buf_lo_after_commit+0x144/0x210 [ 55.395605][ T5064] ? gfs2_unpin+0xcf0/0xcf0 [ 55.400107][ T5064] gfs2_log_flush+0x140f/0x28a0 [ 55.404969][ T5064] ? gfs2_ail_drain+0x630/0x630 [ 55.409828][ T5064] gfs2_kill_sb+0x58/0x170 [ 55.414247][ T5064] deactivate_locked_super+0x98/0x160 [ 55.419630][ T5064] deactivate_super+0xb1/0xd0 [ 55.424311][ T5064] cleanup_mnt+0x2ae/0x3d0 [ 55.428730][ T5064] task_work_run+0x16f/0x270 [ 55.433337][ T5064] ? task_work_cancel+0x30/0x30 [ 55.438198][ T5064] do_exit+0xaa8/0x2950 [ 55.442360][ T5064] ? lock_downgrade+0x6e0/0x6e0 [ 55.447220][ T5064] ? do_raw_spin_lock+0x124/0x2b0 [ 55.452250][ T5064] ? mm_update_next_owner+0x7b0/0x7b0 [ 55.457633][ T5064] ? rwlock_bug.part.0+0x90/0x90 [ 55.462575][ T5064] ? _raw_spin_unlock_irq+0x23/0x50 [ 55.467791][ T5064] do_group_exit+0xd4/0x2a0 [ 55.472482][ T5064] __x64_sys_exit_group+0x3e/0x50 [ 55.477611][ T5064] do_syscall_64+0x39/0xb0 [ 55.482042][ T5064] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 55.487947][ T5064] RIP: 0033:0x7fc8f40269a9 [ 55.492357][ T5064] Code: Unable to access opcode bytes at 0x7fc8f402697f. [ 55.499375][ T5064] RSP: 002b:00007fff9553a798 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 55.507814][ T5064] RAX: ffffffffffffffda RBX: 00007fc8f40d3330 RCX: 00007fc8f40269a9 [ 55.515795][ T5064] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 55.523770][ T5064] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00007fc8f40cde40 [ 55.531823][ T5064] R10: 00007fff9553a6b0 R11: 0000000000000246 R12: 00007fc8f40d3330 [ 55.539799][ T5064] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 55.547875][ T5064] [ 55.550886][ T5064] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 55.558164][ T5064] CPU: 1 PID: 5064 Comm: syz-executor827 Not tainted 6.1.0-syzkaller-13052-ged56954cf5a8 #0 [ 55.568227][ T5064] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 55.578284][ T5064] Call Trace: [ 55.581561][ T5064] [ 55.584493][ T5064] dump_stack_lvl+0xd1/0x138 [ 55.589093][ T5064] panic+0x2cc/0x626 [ 55.593081][ T5064] ? panic_print_sys_info.part.0+0x110/0x110 [ 55.599093][ T5064] ? __folio_mark_dirty+0xba8/0xf50 [ 55.604298][ T5064] check_panic_on_warn.cold+0x19/0x35 [ 55.609679][ T5064] __warn+0xf2/0x1a0 [ 55.613586][ T5064] ? __folio_mark_dirty+0xba8/0xf50 [ 55.618959][ T5064] report_bug+0x1c0/0x210 [ 55.623294][ T5064] handle_bug+0x3c/0x70 [ 55.627453][ T5064] exc_invalid_op+0x18/0x50 [ 55.631962][ T5064] asm_exc_invalid_op+0x1a/0x20 [ 55.636820][ T5064] RIP: 0010:__folio_mark_dirty+0xba8/0xf50 [ 55.642628][ T5064] Code: 78 70 48 89 44 24 10 e8 f6 c3 4a 08 31 ff 89 c6 89 44 24 10 e8 09 be d2 ff 8b 44 24 10 85 c0 0f 85 62 f9 ff ff e8 48 c1 d2 ff <0f> 0b e9 56 f9 ff ff e8 3c c1 d2 ff e8 07 c5 4a 08 31 ff 41 89 c4 [ 55.662248][ T5064] RSP: 0018:ffffc90003e9fa60 EFLAGS: 00010093 [ 55.668325][ T5064] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 [ 55.676297][ T5064] RDX: ffff888020bf57c0 RSI: ffffffff81ae8fb8 RDI: 0000000000000005 [ 55.684264][ T5064] RBP: ffffea0001e9e800 R08: 0000000000000005 R09: 0000000000000000 [ 55.692243][ T5064] R10: 0000000000000000 R11: 0000000000000001 R12: ffff888012494978 [ 55.700219][ T5064] R13: ffffffff8e529a00 R14: 0000000000000293 R15: ffff88807c0c4c48 [ 55.708201][ T5064] ? __folio_mark_dirty+0xba8/0xf50 [ 55.713411][ T5064] mark_buffer_dirty+0x70d/0xa40 [ 55.718361][ T5064] gfs2_unpin+0x109/0xcf0 [ 55.722709][ T5064] buf_lo_after_commit+0x144/0x210 [ 55.727837][ T5064] ? gfs2_unpin+0xcf0/0xcf0 [ 55.732344][ T5064] gfs2_log_flush+0x140f/0x28a0 [ 55.737218][ T5064] ? gfs2_ail_drain+0x630/0x630 [ 55.742089][ T5064] gfs2_kill_sb+0x58/0x170 [ 55.746511][ T5064] deactivate_locked_super+0x98/0x160 [ 55.751888][ T5064] deactivate_super+0xb1/0xd0 [ 55.756575][ T5064] cleanup_mnt+0x2ae/0x3d0 [ 55.760995][ T5064] task_work_run+0x16f/0x270 [ 55.765591][ T5064] ? task_work_cancel+0x30/0x30 [ 55.770453][ T5064] do_exit+0xaa8/0x2950 [ 55.774617][ T5064] ? lock_downgrade+0x6e0/0x6e0 [ 55.779638][ T5064] ? do_raw_spin_lock+0x124/0x2b0 [ 55.784660][ T5064] ? mm_update_next_owner+0x7b0/0x7b0 [ 55.790033][ T5064] ? rwlock_bug.part.0+0x90/0x90 [ 55.795048][ T5064] ? _raw_spin_unlock_irq+0x23/0x50 [ 55.800262][ T5064] do_group_exit+0xd4/0x2a0 [ 55.804773][ T5064] __x64_sys_exit_group+0x3e/0x50 [ 55.809802][ T5064] do_syscall_64+0x39/0xb0 [ 55.814230][ T5064] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 55.820121][ T5064] RIP: 0033:0x7fc8f40269a9 [ 55.824531][ T5064] Code: Unable to access opcode bytes at 0x7fc8f402697f. [ 55.831542][ T5064] RSP: 002b:00007fff9553a798 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 55.839958][ T5064] RAX: ffffffffffffffda RBX: 00007fc8f40d3330 RCX: 00007fc8f40269a9 [ 55.847928][ T5064] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 55.855906][ T5064] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00007fc8f40cde40 [ 55.863877][ T5064] R10: 00007fff9553a6b0 R11: 0000000000000246 R12: 00007fc8f40d3330 [ 55.871844][ T5064] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 55.879829][ T5064] [ 55.882922][ T5064] Kernel Offset: disabled [ 55.887445][ T5064] Rebooting in 86400 seconds..