./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2854470366 <...> DUID 00:04:cd:7d:74:7d:04:96:3f:c0:f2:1a:da:5a:49:b1:9f:fb forked to background, child pid 4653 [ 35.487012][ T4654] 8021q: adding VLAN 0 to HW filter on device bond0 [ 35.506364][ T4654] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.125' (ECDSA) to the list of known hosts. execve("./syz-executor2854470366", ["./syz-executor2854470366"], 0x7fff77338210 /* 10 vars */) = 0 brk(NULL) = 0x555555c0e000 brk(0x555555c0ec40) = 0x555555c0ec40 arch_prctl(ARCH_SET_FS, 0x555555c0e300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor2854470366", 4096) = 28 brk(0x555555c2fc40) = 0x555555c2fc40 brk(0x555555c30000) = 0x555555c30000 mprotect(0x7f9c1cecf000, 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 5079 attached , child_tidptr=0x555555c0e5d0) = 5079 [pid 5079] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5079] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5079] setsid() = 1 [pid 5079] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5079] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5079] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5079] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5079] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5079] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5079] unshare(CLONE_NEWNS) = 0 [pid 5079] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5079] unshare(CLONE_NEWIPC) = 0 [pid 5079] unshare(CLONE_NEWCGROUP) = 0 [pid 5079] unshare(CLONE_NEWUTS) = 0 [pid 5079] unshare(CLONE_SYSVSEM) = 0 [pid 5079] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5079] write(3, "16777216", 8) = 8 [pid 5079] close(3) = 0 [pid 5079] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5079] write(3, "536870912", 9) = 9 [pid 5079] close(3) = 0 [pid 5079] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5079] write(3, "1024", 4) = 4 [pid 5079] close(3) = 0 [pid 5079] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5079] write(3, "8192", 4) = 4 [pid 5079] close(3) = 0 [pid 5079] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5079] write(3, "1024", 4) = 4 [pid 5079] close(3) = 0 [pid 5079] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5079] write(3, "1024", 4) = 4 [pid 5079] close(3) = 0 [pid 5079] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5079] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5079] close(3) = 0 [pid 5079] getpid() = 1 [pid 5079] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b e9 56 f9 ff ff e8 9c 68 d2 ff e8 a7 3f bb ff 31 ff 41 89 c4 [ 55.856992][ T5079] RSP: 0018:ffffc90003d0fa68 EFLAGS: 00010093 [ 55.863074][ T5079] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 [ 55.871051][ T5079] RDX: ffff88807b079d40 RSI: ffffffff81af8588 RDI: 0000000000000005 [ 55.879018][ T5079] RBP: ffffea000079e640 R08: 0000000000000005 R09: 0000000000000000 [ 55.887033][ T5079] R10: 0000000000000000 R11: 0000000000000001 R12: ffff888016814978 [ 55.894998][ T5079] R13: ffffffff8e7427c0 R14: 0000000000000293 R15: ffff888021252258 [ 55.902962][ T5079] FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 55.911884][ T5079] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.918464][ T5079] CR2: 00007f9c1ced3140 CR3: 000000001df81000 CR4: 00000000003506f0 [ 55.926516][ T5079] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 55.934478][ T5079] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 55.942440][ T5079] Call Trace: [ 55.945714][ T5079] [ 55.948660][ T5079] mark_buffer_dirty+0x3e8/0x570 [ 55.953602][ T5079] gfs2_unpin+0x109/0xcf0 [ 55.958131][ T5079] buf_lo_after_commit+0x144/0x210 [ 55.963249][ T5079] ? databuf_lo_after_commit+0x210/0x210 [ 55.968880][ T5079] gfs2_log_flush+0x140f/0x28a0 [ 55.973738][ T5079] ? gfs2_ail_drain+0x630/0x630 [ 55.978596][ T5079] gfs2_kill_sb+0x58/0x170 [ 55.983009][ T5079] deactivate_locked_super+0x98/0x160 [ 55.988401][ T5079] deactivate_super+0xb1/0xd0 [ 55.993167][ T5079] cleanup_mnt+0x2ae/0x3d0 [ 55.997586][ T5079] task_work_run+0x16f/0x270 [ 56.002199][ T5079] ? task_work_cancel+0x30/0x30 [ 56.007098][ T5079] do_exit+0xb44/0x2a90 [ 56.011265][ T5079] ? mm_update_next_owner+0x7b0/0x7b0 [ 56.016653][ T5079] ? _raw_spin_unlock_irq+0x23/0x50 [ 56.021942][ T5079] do_group_exit+0xd4/0x2a0 [ 56.026461][ T5079] __x64_sys_exit_group+0x3e/0x50 [ 56.031523][ T5079] do_syscall_64+0x39/0xb0 [ 56.035960][ T5079] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 56.041883][ T5079] RIP: 0033:0x7f9c1ce4d9f9 [ 56.046301][ T5079] Code: Unable to access opcode bytes at 0x7f9c1ce4d9cf. [ 56.053333][ T5079] RSP: 002b:00007fffb8125f48 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 56.061795][ T5079] RAX: ffffffffffffffda RBX: 00007f9c1ced5330 RCX: 00007f9c1ce4d9f9 [ 56.069776][ T5079] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 56.077848][ T5079] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00007f9c1cecfe40 [ 56.086017][ T5079] R10: 00007fffb8125e60 R11: 0000000000000246 R12: 00007f9c1ced5330 [ 56.094091][ T5079] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 56.102171][ T5079] [ 56.105197][ T5079] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 56.112463][ T5079] CPU: 0 PID: 5079 Comm: syz-executor285 Not tainted 6.2.0-rc5-next-20230123-syzkaller #0 [ 56.122341][ T5079] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 [ 56.132424][ T5079] Call Trace: [ 56.135706][ T5079] [ 56.138635][ T5079] dump_stack_lvl+0xd1/0x138 [ 56.143251][ T5079] panic+0x2cc/0x626 [ 56.147201][ T5079] ? panic_print_sys_info.part.0+0x110/0x110 [ 56.153196][ T5079] ? __folio_mark_dirty+0xba8/0xf70 [ 56.158394][ T5079] check_panic_on_warn.cold+0x19/0x35 [ 56.163771][ T5079] __warn+0xf2/0x1a0 [ 56.167668][ T5079] ? __folio_mark_dirty+0xba8/0xf70 [ 56.172864][ T5079] report_bug+0x1c0/0x210 [ 56.177198][ T5079] handle_bug+0x3c/0x70 [ 56.181449][ T5079] exc_invalid_op+0x18/0x50 [ 56.185949][ T5079] asm_exc_invalid_op+0x1a/0x20 [ 56.190806][ T5079] RIP: 0010:__folio_mark_dirty+0xba8/0xf70 [ 56.196640][ T5079] Code: 78 70 48 89 44 24 10 e8 56 6c 55 08 31 ff 89 c6 89 44 24 10 e8 69 65 d2 ff 8b 44 24 10 85 c0 0f 85 62 f9 ff ff e8 a8 68 d2 ff <0f> 0b e9 56 f9 ff ff e8 9c 68 d2 ff e8 a7 3f bb ff 31 ff 41 89 c4 [ 56.216422][ T5079] RSP: 0018:ffffc90003d0fa68 EFLAGS: 00010093 [ 56.222491][ T5079] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 [ 56.230461][ T5079] RDX: ffff88807b079d40 RSI: ffffffff81af8588 RDI: 0000000000000005 [ 56.238437][ T5079] RBP: ffffea000079e640 R08: 0000000000000005 R09: 0000000000000000 [ 56.246486][ T5079] R10: 0000000000000000 R11: 0000000000000001 R12: ffff888016814978 [ 56.254452][ T5079] R13: ffffffff8e7427c0 R14: 0000000000000293 R15: ffff888021252258 [ 56.262426][ T5079] ? __folio_mark_dirty+0xba8/0xf70 [ 56.267628][ T5079] ? __folio_mark_dirty+0xba8/0xf70 [ 56.273174][ T5079] mark_buffer_dirty+0x3e8/0x570 [ 56.278130][ T5079] gfs2_unpin+0x109/0xcf0 [ 56.282484][ T5079] buf_lo_after_commit+0x144/0x210 [ 56.287600][ T5079] ? databuf_lo_after_commit+0x210/0x210 [ 56.293232][ T5079] gfs2_log_flush+0x140f/0x28a0 [ 56.298291][ T5079] ? gfs2_ail_drain+0x630/0x630 [ 56.303168][ T5079] gfs2_kill_sb+0x58/0x170 [ 56.307603][ T5079] deactivate_locked_super+0x98/0x160 [ 56.312983][ T5079] deactivate_super+0xb1/0xd0 [ 56.317663][ T5079] cleanup_mnt+0x2ae/0x3d0 [ 56.322097][ T5079] task_work_run+0x16f/0x270 [ 56.326687][ T5079] ? task_work_cancel+0x30/0x30 [ 56.331543][ T5079] do_exit+0xb44/0x2a90 [ 56.335695][ T5079] ? mm_update_next_owner+0x7b0/0x7b0 [ 56.341060][ T5079] ? _raw_spin_unlock_irq+0x23/0x50 [ 56.346340][ T5079] do_group_exit+0xd4/0x2a0 [ 56.350852][ T5079] __x64_sys_exit_group+0x3e/0x50 [ 56.356028][ T5079] do_syscall_64+0x39/0xb0 [ 56.360503][ T5079] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 56.366434][ T5079] RIP: 0033:0x7f9c1ce4d9f9 [ 56.370849][ T5079] Code: Unable to access opcode bytes at 0x7f9c1ce4d9cf. [ 56.377959][ T5079] RSP: 002b:00007fffb8125f48 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 56.386724][ T5079] RAX: ffffffffffffffda RBX: 00007f9c1ced5330 RCX: 00007f9c1ce4d9f9 [ 56.394692][ T5079] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 56.402664][ T5079] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00007f9c1cecfe40 [ 56.410627][ T5079] R10: 00007fffb8125e60 R11: 0000000000000246 R12: 00007f9c1ced5330 [ 56.418587][ T5079] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 56.426563][ T5079] [ 56.429748][ T5079] Kernel Offset: disabled [ 56.434241][ T5079] Rebooting in 86400 seconds..