./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1439375824 <...> DUID 00:04:e3:a1:4c:5b:a4:47:39:93:9a:5d:f6:69:14:97:a9:57 forked to background, child pid 4696 [ 49.547722][ T4697] 8021q: adding VLAN 0 to HW filter on device bond0 [ 49.562637][ T4697] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.67' (ECDSA) to the list of known hosts. execve("./syz-executor1439375824", ["./syz-executor1439375824"], 0x7ffdecd7c990 /* 10 vars */) = 0 brk(NULL) = 0x555556c86000 brk(0x555556c86c40) = 0x555556c86c40 arch_prctl(ARCH_SET_FS, 0x555556c86300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor1439375824", 4096) = 28 brk(0x555556ca7c40) = 0x555556ca7c40 brk(0x555556ca8000) = 0x555556ca8000 mprotect(0x7f85f1091000, 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 5031 attached , child_tidptr=0x555556c865d0) = 5031 [pid 5031] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5031] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5031] setsid() = 1 [pid 5031] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5031] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5031] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5031] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5031] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5031] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5031] unshare(CLONE_NEWNS) = 0 [pid 5031] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5031] unshare(CLONE_NEWIPC) = 0 [pid 5031] unshare(CLONE_NEWCGROUP) = 0 [pid 5031] unshare(CLONE_NEWUTS) = 0 [pid 5031] unshare(CLONE_SYSVSEM) = 0 [pid 5031] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5031] write(3, "16777216", 8) = 8 [pid 5031] close(3) = 0 [pid 5031] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5031] write(3, "536870912", 9) = 9 [pid 5031] close(3) = 0 [pid 5031] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5031] write(3, "1024", 4) = 4 [pid 5031] close(3) = 0 [pid 5031] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5031] write(3, "8192", 4) = 4 [pid 5031] close(3) = 0 [pid 5031] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5031] write(3, "1024", 4) = 4 [pid 5031] close(3) = 0 [pid 5031] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5031] write(3, "1024", 4) = 4 [pid 5031] close(3) = 0 [pid 5031] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5031] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5031] close(3) = 0 [pid 5031] getpid() = 1 [pid 5031] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b e9 e0 fb ff ff e8 02 39 90 fd 4c 8d ab a8 00 00 00 31 f6 4c [ 80.023255][ T5031] RSP: 0018:ffffc90003adfa28 EFLAGS: 00010293 [ 80.029471][ T5031] RAX: 0000000000000000 RBX: ffff88801e61c500 RCX: 0000000000000000 [ 80.037533][ T5031] RDX: ffff888025bc8000 RSI: ffffffff83f42912 RDI: 0000000000000001 [ 80.045538][ T5031] RBP: ffff88814133e000 R08: 0000000000000000 R09: fffffbfff1d53172 [ 80.053584][ T5031] R10: ffffffff8ea98b97 R11: 0000000000000003 R12: ffff88801e61c538 [ 80.061630][ T5031] R13: ffffc90003ae1000 R14: ffff88814133e460 R15: ffff88801e61c500 [ 80.069703][ T5031] FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 80.078713][ T5031] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 80.085316][ T5031] CR2: 00007f85f1095140 CR3: 000000000c775000 CR4: 00000000003506e0 [ 80.093377][ T5031] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 80.101435][ T5031] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 80.109476][ T5031] Call Trace: [ 80.112784][ T5031] [ 80.115726][ T5031] ? __warn+0xe6/0x390 [ 80.119903][ T5031] ? blkdev_put+0x562/0x8a0 [ 80.124442][ T5031] ? report_bug+0x2da/0x500 [ 80.129055][ T5031] ? handle_bug+0x3c/0x70 [ 80.133434][ T5031] ? exc_invalid_op+0x18/0x50 [ 80.138220][ T5031] ? asm_exc_invalid_op+0x1a/0x20 [ 80.143314][ T5031] ? blkdev_put+0x562/0x8a0 [ 80.147944][ T5031] ? blkdev_put+0x562/0x8a0 [ 80.152519][ T5031] ? blkdev_put+0x562/0x8a0 [ 80.157156][ T5031] free_journal_ram+0x421/0x5c0 [ 80.162064][ T5031] journal_release+0x276/0x630 [ 80.166909][ T5031] ? reiserfs_end_persistent_transaction+0x1b0/0x1b0 [ 80.173635][ T5031] ? do_raw_spin_unlock+0x175/0x230 [ 80.178968][ T5031] reiserfs_put_super+0xe4/0x5c0 [ 80.184146][ T5031] ? reiserfs_quota_read+0x4f0/0x4f0 [ 80.189574][ T5031] ? dispose_list+0x1e0/0x1e0 [ 80.194308][ T5031] ? fscrypt_destroy_keyring+0x1a/0x380 [ 80.199939][ T5031] ? reiserfs_quota_read+0x4f0/0x4f0 [ 80.205291][ T5031] generic_shutdown_super+0x158/0x480 [ 80.210764][ T5031] kill_block_super+0x64/0xb0 [ 80.215495][ T5031] deactivate_locked_super+0x98/0x160 [ 80.221092][ T5031] deactivate_super+0xb1/0xd0 [ 80.225882][ T5031] cleanup_mnt+0x2ae/0x3d0 [ 80.230358][ T5031] task_work_run+0x16f/0x270 [ 80.234974][ T5031] ? task_work_cancel+0x30/0x30 [ 80.239915][ T5031] ? __put_net+0x61/0x70 [ 80.244271][ T5031] do_exit+0xadc/0x2a30 [ 80.248551][ T5031] ? lock_downgrade+0x690/0x690 [ 80.253562][ T5031] ? do_raw_spin_lock+0x124/0x2b0 [ 80.258687][ T5031] ? mm_update_next_owner+0x7b0/0x7b0 [ 80.264110][ T5031] ? spin_bug+0x1c0/0x1c0 [ 80.268570][ T5031] ? _raw_spin_unlock_irq+0x23/0x50 [ 80.273910][ T5031] do_group_exit+0xd4/0x2a0 [ 80.278533][ T5031] __x64_sys_exit_group+0x3e/0x50 [ 80.283618][ T5031] do_syscall_64+0x39/0xb0 [ 80.288180][ T5031] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 80.294125][ T5031] RIP: 0033:0x7f85f10209c9 [ 80.298613][ T5031] Code: Unable to access opcode bytes at 0x7f85f102099f. [ 80.305695][ T5031] RSP: 002b:00007ffd34c7a3e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 80.314214][ T5031] RAX: ffffffffffffffda RBX: 00007f85f1097330 RCX: 00007f85f10209c9 [ 80.322257][ T5031] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 80.330300][ T5031] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 0000000000001111 [ 80.338340][ T5031] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f85f1097330 [ 80.346408][ T5031] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 80.354430][ T5031] [ 80.357549][ T5031] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 80.364852][ T5031] CPU: 1 PID: 5031 Comm: syz-executor143 Not tainted 6.4.0-rc6-next-20230616-syzkaller #0 [ 80.374756][ T5031] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 [ 80.384836][ T5031] Call Trace: [ 80.388129][ T5031] [ 80.391075][ T5031] dump_stack_lvl+0xd9/0x150 [ 80.395692][ T5031] panic+0x686/0x730 [ 80.399622][ T5031] ? panic_smp_self_stop+0xa0/0xa0 [ 80.404760][ T5031] ? show_trace_log_lvl+0x284/0x390 [ 80.410003][ T5031] ? blkdev_put+0x562/0x8a0 [ 80.414538][ T5031] check_panic_on_warn+0xb1/0xc0 [ 80.419513][ T5031] __warn+0xf2/0x390 [ 80.423464][ T5031] ? blkdev_put+0x562/0x8a0 [ 80.428038][ T5031] report_bug+0x2da/0x500 [ 80.432434][ T5031] handle_bug+0x3c/0x70 [ 80.436652][ T5031] exc_invalid_op+0x18/0x50 [ 80.441205][ T5031] asm_exc_invalid_op+0x1a/0x20 [ 80.446102][ T5031] RIP: 0010:blkdev_put+0x562/0x8a0 [ 80.451257][ T5031] Code: c0 74 08 3c 03 0f 8e 23 03 00 00 41 83 ac 24 f0 04 00 00 01 e9 2b fe ff ff e8 1a 39 90 fd 0f 0b e9 4b fc ff ff e8 0e 39 90 fd <0f> 0b e9 e0 fb ff ff e8 02 39 90 fd 4c 8d ab a8 00 00 00 31 f6 4c [ 80.470889][ T5031] RSP: 0018:ffffc90003adfa28 EFLAGS: 00010293 [ 80.476979][ T5031] RAX: 0000000000000000 RBX: ffff88801e61c500 RCX: 0000000000000000 [ 80.484971][ T5031] RDX: ffff888025bc8000 RSI: ffffffff83f42912 RDI: 0000000000000001 [ 80.492965][ T5031] RBP: ffff88814133e000 R08: 0000000000000000 R09: fffffbfff1d53172 [ 80.500960][ T5031] R10: ffffffff8ea98b97 R11: 0000000000000003 R12: ffff88801e61c538 [ 80.508950][ T5031] R13: ffffc90003ae1000 R14: ffff88814133e460 R15: ffff88801e61c500 [ 80.516967][ T5031] ? blkdev_put+0x562/0x8a0 [ 80.521523][ T5031] ? blkdev_put+0x562/0x8a0 [ 80.526073][ T5031] free_journal_ram+0x421/0x5c0 [ 80.530959][ T5031] journal_release+0x276/0x630 [ 80.535753][ T5031] ? reiserfs_end_persistent_transaction+0x1b0/0x1b0 [ 80.542472][ T5031] ? do_raw_spin_unlock+0x175/0x230 [ 80.547731][ T5031] reiserfs_put_super+0xe4/0x5c0 [ 80.552707][ T5031] ? reiserfs_quota_read+0x4f0/0x4f0 [ 80.558038][ T5031] ? dispose_list+0x1e0/0x1e0 [ 80.562762][ T5031] ? fscrypt_destroy_keyring+0x1a/0x380 [ 80.568340][ T5031] ? reiserfs_quota_read+0x4f0/0x4f0 [ 80.573666][ T5031] generic_shutdown_super+0x158/0x480 [ 80.579080][ T5031] kill_block_super+0x64/0xb0 [ 80.583794][ T5031] deactivate_locked_super+0x98/0x160 [ 80.589207][ T5031] deactivate_super+0xb1/0xd0 [ 80.593950][ T5031] cleanup_mnt+0x2ae/0x3d0 [ 80.598431][ T5031] task_work_run+0x16f/0x270 [ 80.603075][ T5031] ? task_work_cancel+0x30/0x30 [ 80.607959][ T5031] ? __put_net+0x61/0x70 [ 80.612261][ T5031] do_exit+0xadc/0x2a30 [ 80.616453][ T5031] ? lock_downgrade+0x690/0x690 [ 80.621346][ T5031] ? do_raw_spin_lock+0x124/0x2b0 [ 80.626412][ T5031] ? mm_update_next_owner+0x7b0/0x7b0 [ 80.631829][ T5031] ? spin_bug+0x1c0/0x1c0 [ 80.636201][ T5031] ? _raw_spin_unlock_irq+0x23/0x50 [ 80.641445][ T5031] do_group_exit+0xd4/0x2a0 [ 80.645981][ T5031] __x64_sys_exit_group+0x3e/0x50 [ 80.651043][ T5031] do_syscall_64+0x39/0xb0 [ 80.655492][ T5031] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 80.661424][ T5031] RIP: 0033:0x7f85f10209c9 [ 80.665864][ T5031] Code: Unable to access opcode bytes at 0x7f85f102099f. [ 80.672906][ T5031] RSP: 002b:00007ffd34c7a3e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 80.681353][ T5031] RAX: ffffffffffffffda RBX: 00007f85f1097330 RCX: 00007f85f10209c9 [ 80.689351][ T5031] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 80.697348][ T5031] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 0000000000001111 [ 80.705342][ T5031] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f85f1097330 [ 80.713337][ T5031] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 80.721347][ T5031] [ 80.724663][ T5031] Kernel Offset: disabled [ 80.729106][ T5031] Rebooting in 86400 seconds..