./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4256874294 <...> DUID 00:04:cd:7d:74:7d:04:96:3f:c0:f2:1a:da:5a:49:b1:9f:fb forked to background, child pid 4693 [ 31.153417][ T4694] 8021q: adding VLAN 0 to HW filter on device bond0 [ 31.164388][ T4694] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.123' (ECDSA) to the list of known hosts. execve("./syz-executor4256874294", ["./syz-executor4256874294"], 0x7ffce6cf5900 /* 10 vars */) = 0 brk(NULL) = 0x555556c62000 brk(0x555556c62c40) = 0x555556c62c40 arch_prctl(ARCH_SET_FS, 0x555556c62300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor4256874294", 4096) = 28 brk(0x555556c83c40) = 0x555556c83c40 brk(0x555556c84000) = 0x555556c84000 mprotect(0x7f737a2c6000, 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 5025 attached , child_tidptr=0x555556c625d0) = 5025 [pid 5025] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5025] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5025] setsid() = 1 [pid 5025] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5025] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5025] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5025] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5025] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5025] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5025] unshare(CLONE_NEWNS) = 0 [pid 5025] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5025] unshare(CLONE_NEWIPC) = 0 [pid 5025] unshare(CLONE_NEWCGROUP) = 0 [pid 5025] unshare(CLONE_NEWUTS) = 0 [pid 5025] unshare(CLONE_SYSVSEM) = 0 [pid 5025] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5025] write(3, "16777216", 8) = 8 [pid 5025] close(3) = 0 [pid 5025] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5025] write(3, "536870912", 9) = 9 [pid 5025] close(3) = 0 [pid 5025] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5025] write(3, "1024", 4) = 4 [pid 5025] close(3) = 0 [pid 5025] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5025] write(3, "8192", 4) = 4 [pid 5025] close(3) = 0 [pid 5025] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5025] write(3, "1024", 4) = 4 [pid 5025] close(3) = 0 [pid 5025] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5025] write(3, "1024", 4) = 4 [pid 5025] close(3) = 0 [pid 5025] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5025] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5025] close(3) = 0 [pid 5025] getpid() = 1 [pid 5025] 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 [ 55.470554][ T5025] RSP: 0018:ffffc90003b0fa28 EFLAGS: 00010293 [ 55.476675][ T5025] RAX: 0000000000000000 RBX: ffff888148c9c500 RCX: 0000000000000000 [ 55.484722][ T5025] RDX: ffff8880783b8000 RSI: ffffffff83f42912 RDI: 0000000000000001 [ 55.492724][ T5025] RBP: ffff88814175c000 R08: 0000000000000000 R09: fffffbfff1d53172 [ 55.500729][ T5025] R10: ffffffff8ea98b97 R11: 0000000000000003 R12: ffff888148c9c538 [ 55.508734][ T5025] R13: ffffc90003b21000 R14: ffff88814175c460 R15: ffff888148c9c500 [ 55.516771][ T5025] FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 55.525763][ T5025] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.532365][ T5025] CR2: 00007f737a2ca140 CR3: 000000000c775000 CR4: 00000000003506e0 [ 55.540395][ T5025] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 55.548406][ T5025] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 55.556511][ T5025] Call Trace: [ 55.559794][ T5025] [ 55.562718][ T5025] ? __warn+0xe6/0x390 [ 55.566838][ T5025] ? blkdev_put+0x562/0x8a0 [ 55.571384][ T5025] ? report_bug+0x2da/0x500 [ 55.575950][ T5025] ? handle_bug+0x3c/0x70 [ 55.580296][ T5025] ? exc_invalid_op+0x18/0x50 [ 55.585145][ T5025] ? asm_exc_invalid_op+0x1a/0x20 [ 55.590232][ T5025] ? blkdev_put+0x562/0x8a0 [ 55.594762][ T5025] ? blkdev_put+0x562/0x8a0 [ 55.599318][ T5025] ? blkdev_put+0x562/0x8a0 [ 55.603847][ T5025] free_journal_ram+0x421/0x5c0 [ 55.608748][ T5025] journal_release+0x276/0x630 [ 55.613537][ T5025] ? reiserfs_end_persistent_transaction+0x1b0/0x1b0 [ 55.620276][ T5025] ? do_raw_spin_unlock+0x175/0x230 [ 55.625580][ T5025] reiserfs_put_super+0xe4/0x5c0 [ 55.630539][ T5025] ? reiserfs_quota_read+0x4f0/0x4f0 [ 55.635867][ T5025] ? dispose_list+0x1e0/0x1e0 [ 55.640571][ T5025] ? fscrypt_destroy_keyring+0x1a/0x380 [ 55.646199][ T5025] ? reiserfs_quota_read+0x4f0/0x4f0 [ 55.651524][ T5025] generic_shutdown_super+0x158/0x480 [ 55.657029][ T5025] kill_block_super+0x64/0xb0 [ 55.661770][ T5025] deactivate_locked_super+0x98/0x160 [ 55.667243][ T5025] deactivate_super+0xb1/0xd0 [ 55.671944][ T5025] cleanup_mnt+0x2ae/0x3d0 [ 55.676415][ T5025] task_work_run+0x16f/0x270 [ 55.681023][ T5025] ? task_work_cancel+0x30/0x30 [ 55.685920][ T5025] ? __put_net+0x61/0x70 [ 55.690189][ T5025] do_exit+0xadc/0x2a30 [ 55.694342][ T5025] ? lock_downgrade+0x690/0x690 [ 55.699282][ T5025] ? do_raw_spin_lock+0x124/0x2b0 [ 55.704342][ T5025] ? mm_update_next_owner+0x7b0/0x7b0 [ 55.709780][ T5025] ? spin_bug+0x1c0/0x1c0 [ 55.714134][ T5025] ? _raw_spin_unlock_irq+0x23/0x50 [ 55.719385][ T5025] do_group_exit+0xd4/0x2a0 [ 55.723910][ T5025] __x64_sys_exit_group+0x3e/0x50 [ 55.729077][ T5025] do_syscall_64+0x39/0xb0 [ 55.733510][ T5025] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 55.739446][ T5025] RIP: 0033:0x7f737a2559c9 [ 55.743877][ T5025] Code: Unable to access opcode bytes at 0x7f737a25599f. [ 55.750927][ T5025] RSP: 002b:00007ffe492c48c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 55.759410][ T5025] RAX: ffffffffffffffda RBX: 00007f737a2cc330 RCX: 00007f737a2559c9 [ 55.767420][ T5025] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 55.775379][ T5025] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 0000000000001111 [ 55.783421][ T5025] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f737a2cc330 [ 55.791476][ T5025] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 55.799562][ T5025] [ 55.802604][ T5025] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 55.810663][ T5025] CPU: 1 PID: 5025 Comm: syz-executor425 Not tainted 6.4.0-rc6-next-20230616-syzkaller #0 [ 55.820543][ T5025] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 [ 55.830586][ T5025] Call Trace: [ 55.833850][ T5025] [ 55.836768][ T5025] dump_stack_lvl+0xd9/0x150 [ 55.841351][ T5025] panic+0x686/0x730 [ 55.845249][ T5025] ? panic_smp_self_stop+0xa0/0xa0 [ 55.850350][ T5025] ? show_trace_log_lvl+0x284/0x390 [ 55.855567][ T5025] ? blkdev_put+0x562/0x8a0 [ 55.860091][ T5025] check_panic_on_warn+0xb1/0xc0 [ 55.865035][ T5025] __warn+0xf2/0x390 [ 55.869201][ T5025] ? blkdev_put+0x562/0x8a0 [ 55.873713][ T5025] report_bug+0x2da/0x500 [ 55.878054][ T5025] handle_bug+0x3c/0x70 [ 55.882209][ T5025] exc_invalid_op+0x18/0x50 [ 55.886710][ T5025] asm_exc_invalid_op+0x1a/0x20 [ 55.891563][ T5025] RIP: 0010:blkdev_put+0x562/0x8a0 [ 55.896704][ T5025] 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 [ 55.916327][ T5025] RSP: 0018:ffffc90003b0fa28 EFLAGS: 00010293 [ 55.922402][ T5025] RAX: 0000000000000000 RBX: ffff888148c9c500 RCX: 0000000000000000 [ 55.930374][ T5025] RDX: ffff8880783b8000 RSI: ffffffff83f42912 RDI: 0000000000000001 [ 55.938433][ T5025] RBP: ffff88814175c000 R08: 0000000000000000 R09: fffffbfff1d53172 [ 55.946405][ T5025] R10: ffffffff8ea98b97 R11: 0000000000000003 R12: ffff888148c9c538 [ 55.954377][ T5025] R13: ffffc90003b21000 R14: ffff88814175c460 R15: ffff888148c9c500 [ 55.962452][ T5025] ? blkdev_put+0x562/0x8a0 [ 55.966989][ T5025] ? blkdev_put+0x562/0x8a0 [ 55.971518][ T5025] free_journal_ram+0x421/0x5c0 [ 55.976382][ T5025] journal_release+0x276/0x630 [ 55.981155][ T5025] ? reiserfs_end_persistent_transaction+0x1b0/0x1b0 [ 55.987843][ T5025] ? do_raw_spin_unlock+0x175/0x230 [ 55.993090][ T5025] reiserfs_put_super+0xe4/0x5c0 [ 55.998044][ T5025] ? reiserfs_quota_read+0x4f0/0x4f0 [ 56.003347][ T5025] ? dispose_list+0x1e0/0x1e0 [ 56.008048][ T5025] ? fscrypt_destroy_keyring+0x1a/0x380 [ 56.013689][ T5025] ? reiserfs_quota_read+0x4f0/0x4f0 [ 56.018990][ T5025] generic_shutdown_super+0x158/0x480 [ 56.024381][ T5025] kill_block_super+0x64/0xb0 [ 56.029073][ T5025] deactivate_locked_super+0x98/0x160 [ 56.034461][ T5025] deactivate_super+0xb1/0xd0 [ 56.039153][ T5025] cleanup_mnt+0x2ae/0x3d0 [ 56.043583][ T5025] task_work_run+0x16f/0x270 [ 56.048181][ T5025] ? task_work_cancel+0x30/0x30 [ 56.053039][ T5025] ? __put_net+0x61/0x70 [ 56.057309][ T5025] do_exit+0xadc/0x2a30 [ 56.061474][ T5025] ? lock_downgrade+0x690/0x690 [ 56.066438][ T5025] ? do_raw_spin_lock+0x124/0x2b0 [ 56.071497][ T5025] ? mm_update_next_owner+0x7b0/0x7b0 [ 56.076874][ T5025] ? spin_bug+0x1c0/0x1c0 [ 56.081221][ T5025] ? _raw_spin_unlock_irq+0x23/0x50 [ 56.086433][ T5025] do_group_exit+0xd4/0x2a0 [ 56.090945][ T5025] __x64_sys_exit_group+0x3e/0x50 [ 56.095994][ T5025] do_syscall_64+0x39/0xb0 [ 56.100431][ T5025] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 56.106347][ T5025] RIP: 0033:0x7f737a2559c9 [ 56.110760][ T5025] Code: Unable to access opcode bytes at 0x7f737a25599f. [ 56.117772][ T5025] RSP: 002b:00007ffe492c48c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 56.126196][ T5025] RAX: ffffffffffffffda RBX: 00007f737a2cc330 RCX: 00007f737a2559c9 [ 56.134171][ T5025] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 56.142144][ T5025] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 0000000000001111 [ 56.150121][ T5025] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f737a2cc330 [ 56.158091][ T5025] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 56.166860][ T5025] [ 56.170043][ T5025] Kernel Offset: disabled [ 56.174454][ T5025] Rebooting in 86400 seconds..