./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1450757383 <...> forked to background, child pid 4645 no interfaces have a carrier [ 22.210364][ T4646] 8021q: adding VLAN 0 to HW filter on device bond0 [ 22.220813][ T4646] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.235' (ECDSA) to the list of known hosts. execve("./syz-executor1450757383", ["./syz-executor1450757383"], 0x7ffe22f30220 /* 10 vars */) = 0 brk(NULL) = 0x555556dec000 brk(0x555556decc40) = 0x555556decc40 arch_prctl(ARCH_SET_FS, 0x555556dec300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor1450757383", 4096) = 28 brk(0x555556e0dc40) = 0x555556e0dc40 brk(0x555556e0e000) = 0x555556e0e000 mprotect(0x7f3e5f2fb000, 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 5067 attached , child_tidptr=0x555556dec5d0) = 5067 [pid 5067] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5067] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5067] setsid() = 1 [pid 5067] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5067] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5067] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5067] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5067] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5067] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5067] unshare(CLONE_NEWNS) = 0 [pid 5067] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5067] unshare(CLONE_NEWIPC) = 0 [pid 5067] unshare(CLONE_NEWCGROUP) = 0 [pid 5067] unshare(CLONE_NEWUTS) = 0 [pid 5067] unshare(CLONE_SYSVSEM) = 0 [pid 5067] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5067] write(3, "16777216", 8) = 8 [pid 5067] close(3) = 0 [pid 5067] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5067] write(3, "536870912", 9) = 9 [pid 5067] close(3) = 0 [pid 5067] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5067] write(3, "1024", 4) = 4 [pid 5067] close(3) = 0 [pid 5067] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5067] write(3, "8192", 4) = 4 [pid 5067] close(3) = 0 [pid 5067] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5067] write(3, "1024", 4) = 4 [pid 5067] close(3) = 0 [pid 5067] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5067] write(3, "1024", 4) = 4 [pid 5067] close(3) = 0 [pid 5067] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5067] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5067] close(3) = 0 [pid 5067] getpid() = 1 [pid 5067] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b e9 36 f9 ff ff e8 69 b7 d2 ff e8 f4 4c 5a 08 31 ff 41 89 c4 [ 42.934762][ T5067] RSP: 0018:ffffc90003bffa60 EFLAGS: 00010093 [ 42.940817][ T5067] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 [ 42.948781][ T5067] RDX: ffff888026860000 RSI: ffffffff81ae409b RDI: 0000000000000005 [ 42.956743][ T5067] RBP: ffffea0001d90740 R08: 0000000000000005 R09: 0000000000000000 [ 42.964705][ T5067] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001 [ 42.972686][ T5067] R13: ffffffff8e733e80 R14: 0000000000000293 R15: ffff888021000c48 [ 42.980647][ T5067] FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 42.989565][ T5067] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 42.996141][ T5067] CR2: 00007f3e5f2ff140 CR3: 000000000c48e000 CR4: 0000000000350ee0 [ 43.004104][ T5067] Call Trace: [ 43.007373][ T5067] [ 43.010301][ T5067] mark_buffer_dirty+0x70d/0xa40 [ 43.015240][ T5067] gfs2_unpin+0x109/0xcf0 [ 43.019595][ T5067] buf_lo_after_commit+0x144/0x210 [ 43.024716][ T5067] ? gfs2_unpin+0xcf0/0xcf0 [ 43.029216][ T5067] gfs2_log_flush+0x140f/0x28a0 [ 43.034072][ T5067] ? gfs2_ail_drain+0x630/0x630 [ 43.038931][ T5067] gfs2_kill_sb+0x58/0x170 [ 43.043347][ T5067] deactivate_locked_super+0x98/0x160 [ 43.048717][ T5067] deactivate_super+0xb1/0xd0 [ 43.053391][ T5067] cleanup_mnt+0x2ae/0x3d0 [ 43.057891][ T5067] task_work_run+0x16f/0x270 [ 43.062484][ T5067] ? task_work_cancel+0x30/0x30 [ 43.067337][ T5067] do_exit+0xaa8/0x2950 [ 43.071492][ T5067] ? lock_downgrade+0x6e0/0x6e0 [ 43.076358][ T5067] ? do_raw_spin_lock+0x124/0x2b0 [ 43.081370][ T5067] ? mm_update_next_owner+0x7b0/0x7b0 [ 43.086829][ T5067] ? rwlock_bug.part.0+0x90/0x90 [ 43.091763][ T5067] ? _raw_spin_unlock_irq+0x23/0x50 [ 43.096978][ T5067] do_group_exit+0xd4/0x2a0 [ 43.101480][ T5067] __x64_sys_exit_group+0x3e/0x50 [ 43.106496][ T5067] do_syscall_64+0x39/0xb0 [ 43.110906][ T5067] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 43.116798][ T5067] RIP: 0033:0x7f3e5f2549c9 [ 43.121199][ T5067] Code: Unable to access opcode bytes at 0x7f3e5f25499f. [ 43.128196][ T5067] RSP: 002b:00007ffe991afe78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 43.136598][ T5067] RAX: ffffffffffffffda RBX: 00007f3e5f301330 RCX: 00007f3e5f2549c9 [ 43.144560][ T5067] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 43.152524][ T5067] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00007f3e5f2fbe40 [ 43.160485][ T5067] R10: 00007ffe991afd90 R11: 0000000000000246 R12: 00007f3e5f301330 [ 43.168443][ T5067] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 43.176417][ T5067] [ 43.179430][ T5067] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 43.186693][ T5067] CPU: 1 PID: 5067 Comm: syz-executor145 Not tainted 6.2.0-rc7-syzkaller-00208-gd12aca5c0cee #0 [ 43.197089][ T5067] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 [ 43.207133][ T5067] Call Trace: [ 43.210408][ T5067] [ 43.213335][ T5067] dump_stack_lvl+0xd1/0x138 [ 43.217923][ T5067] panic+0x2cc/0x626 [ 43.221813][ T5067] ? panic_print_sys_info.part.0+0x110/0x110 [ 43.227792][ T5067] ? __folio_mark_dirty+0xbcb/0xf80 [ 43.232989][ T5067] check_panic_on_warn.cold+0x19/0x35 [ 43.238355][ T5067] __warn+0xf2/0x1a0 [ 43.242243][ T5067] ? __folio_mark_dirty+0xbcb/0xf80 [ 43.247433][ T5067] report_bug+0x1c0/0x210 [ 43.251772][ T5067] handle_bug+0x3c/0x70 [ 43.255921][ T5067] exc_invalid_op+0x18/0x50 [ 43.260419][ T5067] asm_exc_invalid_op+0x1a/0x20 [ 43.265447][ T5067] RIP: 0010:__folio_mark_dirty+0xbcb/0xf80 [ 43.271245][ T5067] Code: 78 70 48 89 44 24 10 e8 e3 4b 5a 08 31 ff 89 c6 89 44 24 10 e8 36 b4 d2 ff 8b 44 24 10 85 c0 0f 85 42 f9 ff ff e8 75 b7 d2 ff <0f> 0b e9 36 f9 ff ff e8 69 b7 d2 ff e8 f4 4c 5a 08 31 ff 41 89 c4 [ 43.290844][ T5067] RSP: 0018:ffffc90003bffa60 EFLAGS: 00010093 [ 43.296904][ T5067] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 [ 43.304960][ T5067] RDX: ffff888026860000 RSI: ffffffff81ae409b RDI: 0000000000000005 [ 43.312924][ T5067] RBP: ffffea0001d90740 R08: 0000000000000005 R09: 0000000000000000 [ 43.320883][ T5067] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001 [ 43.328841][ T5067] R13: ffffffff8e733e80 R14: 0000000000000293 R15: ffff888021000c48 [ 43.336809][ T5067] ? __folio_mark_dirty+0xbcb/0xf80 [ 43.342010][ T5067] mark_buffer_dirty+0x70d/0xa40 [ 43.346944][ T5067] gfs2_unpin+0x109/0xcf0 [ 43.351281][ T5067] buf_lo_after_commit+0x144/0x210 [ 43.356391][ T5067] ? gfs2_unpin+0xcf0/0xcf0 [ 43.360890][ T5067] gfs2_log_flush+0x140f/0x28a0 [ 43.365747][ T5067] ? gfs2_ail_drain+0x630/0x630 [ 43.370599][ T5067] gfs2_kill_sb+0x58/0x170 [ 43.375034][ T5067] deactivate_locked_super+0x98/0x160 [ 43.380403][ T5067] deactivate_super+0xb1/0xd0 [ 43.385077][ T5067] cleanup_mnt+0x2ae/0x3d0 [ 43.389485][ T5067] task_work_run+0x16f/0x270 [ 43.394073][ T5067] ? task_work_cancel+0x30/0x30 [ 43.398925][ T5067] do_exit+0xaa8/0x2950 [ 43.403086][ T5067] ? lock_downgrade+0x6e0/0x6e0 [ 43.407939][ T5067] ? do_raw_spin_lock+0x124/0x2b0 [ 43.412965][ T5067] ? mm_update_next_owner+0x7b0/0x7b0 [ 43.418329][ T5067] ? rwlock_bug.part.0+0x90/0x90 [ 43.423260][ T5067] ? _raw_spin_unlock_irq+0x23/0x50 [ 43.428453][ T5067] do_group_exit+0xd4/0x2a0 [ 43.432953][ T5067] __x64_sys_exit_group+0x3e/0x50 [ 43.438066][ T5067] do_syscall_64+0x39/0xb0 [ 43.442678][ T5067] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 43.448572][ T5067] RIP: 0033:0x7f3e5f2549c9 [ 43.452996][ T5067] Code: Unable to access opcode bytes at 0x7f3e5f25499f. [ 43.460004][ T5067] RSP: 002b:00007ffe991afe78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 43.468427][ T5067] RAX: ffffffffffffffda RBX: 00007f3e5f301330 RCX: 00007f3e5f2549c9 [ 43.476388][ T5067] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 43.484350][ T5067] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00007f3e5f2fbe40 [ 43.492310][ T5067] R10: 00007ffe991afd90 R11: 0000000000000246 R12: 00007f3e5f301330 [ 43.500270][ T5067] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 43.508328][ T5067] [ 43.512725][ T5067] Kernel Offset: disabled [ 43.517200][ T5067] Rebooting in 86400 seconds..