./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor111107648 <...> forked to background, child pid 4693 [ 31.615009][ T4694] 8021q: adding VLAN 0 to HW filter on device bond0 [ 31.625356][ T4694] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: [ 32.018466][ T4772] sshd (4772) used greatest stack depth: 22472 bytes left OK syzkaller Warning: Permanently added '10.128.0.147' (ECDSA) to the list of known hosts. execve("./syz-executor111107648", ["./syz-executor111107648"], 0x7fff79583d90 /* 10 vars */) = 0 brk(NULL) = 0x555555698000 brk(0x555555698c40) = 0x555555698c40 arch_prctl(ARCH_SET_FS, 0x555555698300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor111107648", 4096) = 27 brk(0x5555556b9c40) = 0x5555556b9c40 brk(0x5555556ba000) = 0x5555556ba000 mprotect(0x7ff427df7000, 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=0x5555556985d0) = 5025 ./strace-static-x86_64: Process 5025 attached [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 [ 57.173135][ T5025] RSP: 0018:ffffc90003a7fa28 EFLAGS: 00010293 [ 57.179197][ T5025] RAX: 0000000000000000 RBX: ffff88801ad50000 RCX: 0000000000000000 [ 57.187219][ T5025] RDX: ffff8880287d1dc0 RSI: ffffffff83f42912 RDI: 0000000000000001 [ 57.195245][ T5025] RBP: ffff88801f28d000 R08: 0000000000000000 R09: fffffbfff1d53172 [ 57.203252][ T5025] R10: ffffffff8ea98b97 R11: 0000000000000003 R12: ffff88801ad50038 [ 57.211284][ T5025] R13: ffffc90003aa1000 R14: ffff88801f28d460 R15: ffff88801ad50000 [ 57.219249][ T5025] FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 57.228235][ T5025] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 57.234897][ T5025] CR2: 00007ff427dfb140 CR3: 000000000c775000 CR4: 00000000003506f0 [ 57.242945][ T5025] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 57.250977][ T5025] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 57.258945][ T5025] Call Trace: [ 57.262259][ T5025] [ 57.265201][ T5025] ? __warn+0xe6/0x390 [ 57.269270][ T5025] ? blkdev_put+0x562/0x8a0 [ 57.273831][ T5025] ? report_bug+0x2da/0x500 [ 57.278415][ T5025] ? handle_bug+0x3c/0x70 [ 57.282801][ T5025] ? exc_invalid_op+0x18/0x50 [ 57.287500][ T5025] ? asm_exc_invalid_op+0x1a/0x20 [ 57.292607][ T5025] ? blkdev_put+0x562/0x8a0 [ 57.297143][ T5025] ? blkdev_put+0x562/0x8a0 [ 57.301692][ T5025] ? blkdev_put+0x562/0x8a0 [ 57.306225][ T5025] free_journal_ram+0x421/0x5c0 [ 57.311148][ T5025] journal_release+0x276/0x630 [ 57.315933][ T5025] ? reiserfs_end_persistent_transaction+0x1b0/0x1b0 [ 57.322655][ T5025] ? do_raw_spin_unlock+0x175/0x230 [ 57.327889][ T5025] reiserfs_put_super+0xe4/0x5c0 [ 57.332889][ T5025] ? reiserfs_quota_read+0x4f0/0x4f0 [ 57.338207][ T5025] ? dispose_list+0x1e0/0x1e0 [ 57.342929][ T5025] ? fscrypt_destroy_keyring+0x1a/0x380 [ 57.348495][ T5025] ? reiserfs_quota_read+0x4f0/0x4f0 [ 57.353887][ T5025] generic_shutdown_super+0x158/0x480 [ 57.359297][ T5025] kill_block_super+0x64/0xb0 [ 57.364065][ T5025] deactivate_locked_super+0x98/0x160 [ 57.369466][ T5025] deactivate_super+0xb1/0xd0 [ 57.374206][ T5025] cleanup_mnt+0x2ae/0x3d0 [ 57.378650][ T5025] task_work_run+0x16f/0x270 [ 57.383282][ T5025] ? task_work_cancel+0x30/0x30 [ 57.388150][ T5025] ? __put_net+0x61/0x70 [ 57.392469][ T5025] do_exit+0xadc/0x2a30 [ 57.396650][ T5025] ? lock_downgrade+0x690/0x690 [ 57.401566][ T5025] ? do_raw_spin_lock+0x124/0x2b0 [ 57.406618][ T5025] ? mm_update_next_owner+0x7b0/0x7b0 [ 57.412057][ T5025] ? spin_bug+0x1c0/0x1c0 [ 57.416434][ T5025] ? _raw_spin_unlock_irq+0x23/0x50 [ 57.421678][ T5025] do_group_exit+0xd4/0x2a0 [ 57.426203][ T5025] __x64_sys_exit_group+0x3e/0x50 [ 57.431330][ T5025] do_syscall_64+0x39/0xb0 [ 57.435771][ T5025] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 57.441703][ T5025] RIP: 0033:0x7ff427d869c9 [ 57.446132][ T5025] Code: Unable to access opcode bytes at 0x7ff427d8699f. [ 57.453195][ T5025] RSP: 002b:00007ffe75959b28 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 57.461663][ T5025] RAX: ffffffffffffffda RBX: 00007ff427dfd330 RCX: 00007ff427d869c9 [ 57.469626][ T5025] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 57.477657][ T5025] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 0000000000001111 [ 57.485689][ T5025] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff427dfd330 [ 57.493728][ T5025] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 57.501784][ T5025] [ 57.504808][ T5025] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 57.512076][ T5025] CPU: 0 PID: 5025 Comm: syz-executor111 Not tainted 6.4.0-rc6-next-20230616-syzkaller #0 [ 57.521954][ T5025] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 [ 57.531997][ T5025] Call Trace: [ 57.535262][ T5025] [ 57.538184][ T5025] dump_stack_lvl+0xd9/0x150 [ 57.542772][ T5025] panic+0x686/0x730 [ 57.546662][ T5025] ? panic_smp_self_stop+0xa0/0xa0 [ 57.551770][ T5025] ? show_trace_log_lvl+0x284/0x390 [ 57.556976][ T5025] ? blkdev_put+0x562/0x8a0 [ 57.561478][ T5025] check_panic_on_warn+0xb1/0xc0 [ 57.566412][ T5025] __warn+0xf2/0x390 [ 57.570300][ T5025] ? blkdev_put+0x562/0x8a0 [ 57.574801][ T5025] report_bug+0x2da/0x500 [ 57.579127][ T5025] handle_bug+0x3c/0x70 [ 57.583276][ T5025] exc_invalid_op+0x18/0x50 [ 57.587773][ T5025] asm_exc_invalid_op+0x1a/0x20 [ 57.592618][ T5025] RIP: 0010:blkdev_put+0x562/0x8a0 [ 57.597726][ 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 [ 57.617327][ T5025] RSP: 0018:ffffc90003a7fa28 EFLAGS: 00010293 [ 57.623402][ T5025] RAX: 0000000000000000 RBX: ffff88801ad50000 RCX: 0000000000000000 [ 57.631377][ T5025] RDX: ffff8880287d1dc0 RSI: ffffffff83f42912 RDI: 0000000000000001 [ 57.639371][ T5025] RBP: ffff88801f28d000 R08: 0000000000000000 R09: fffffbfff1d53172 [ 57.647381][ T5025] R10: ffffffff8ea98b97 R11: 0000000000000003 R12: ffff88801ad50038 [ 57.655371][ T5025] R13: ffffc90003aa1000 R14: ffff88801f28d460 R15: ffff88801ad50000 [ 57.663368][ T5025] ? blkdev_put+0x562/0x8a0 [ 57.667907][ T5025] ? blkdev_put+0x562/0x8a0 [ 57.672454][ T5025] free_journal_ram+0x421/0x5c0 [ 57.677336][ T5025] journal_release+0x276/0x630 [ 57.682122][ T5025] ? reiserfs_end_persistent_transaction+0x1b0/0x1b0 [ 57.688823][ T5025] ? do_raw_spin_unlock+0x175/0x230 [ 57.694057][ T5025] reiserfs_put_super+0xe4/0x5c0 [ 57.699019][ T5025] ? reiserfs_quota_read+0x4f0/0x4f0 [ 57.704331][ T5025] ? dispose_list+0x1e0/0x1e0 [ 57.709044][ T5025] ? fscrypt_destroy_keyring+0x1a/0x380 [ 57.714609][ T5025] ? reiserfs_quota_read+0x4f0/0x4f0 [ 57.719923][ T5025] generic_shutdown_super+0x158/0x480 [ 57.725317][ T5025] kill_block_super+0x64/0xb0 [ 57.730009][ T5025] deactivate_locked_super+0x98/0x160 [ 57.735405][ T5025] deactivate_super+0xb1/0xd0 [ 57.740099][ T5025] cleanup_mnt+0x2ae/0x3d0 [ 57.744534][ T5025] task_work_run+0x16f/0x270 [ 57.749135][ T5025] ? task_work_cancel+0x30/0x30 [ 57.753996][ T5025] ? __put_net+0x61/0x70 [ 57.758265][ T5025] do_exit+0xadc/0x2a30 [ 57.762438][ T5025] ? lock_downgrade+0x690/0x690 [ 57.767310][ T5025] ? do_raw_spin_lock+0x124/0x2b0 [ 57.772354][ T5025] ? mm_update_next_owner+0x7b0/0x7b0 [ 57.777739][ T5025] ? spin_bug+0x1c0/0x1c0 [ 57.782086][ T5025] ? _raw_spin_unlock_irq+0x23/0x50 [ 57.787298][ T5025] do_group_exit+0xd4/0x2a0 [ 57.791814][ T5025] __x64_sys_exit_group+0x3e/0x50 [ 57.796848][ T5025] do_syscall_64+0x39/0xb0 [ 57.801292][ T5025] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 57.807211][ T5025] RIP: 0033:0x7ff427d869c9 [ 57.811630][ T5025] Code: Unable to access opcode bytes at 0x7ff427d8699f. [ 57.818656][ T5025] RSP: 002b:00007ffe75959b28 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 57.827080][ T5025] RAX: ffffffffffffffda RBX: 00007ff427dfd330 RCX: 00007ff427d869c9 [ 57.835065][ T5025] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 57.843043][ T5025] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 0000000000001111 [ 57.851021][ T5025] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff427dfd330 [ 57.858999][ T5025] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 57.866998][ T5025] [ 57.870072][ T5025] Kernel Offset: disabled [ 57.874470][ T5025] Rebooting in 86400 seconds..