./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor281743940 <...> DUID 00:04:9b:41:e3:df:54:6f:ca:1f:62:a0:1b:7c:64:71:74:ce forked to background, child pid 3185 [ 25.217966][ T3186] 8021q: adding VLAN 0 to HW filter on device bond0 [ 25.234736][ T3186] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.167' (ECDSA) to the list of known hosts. execve("./syz-executor281743940", ["./syz-executor281743940"], 0x7ffdc5076970 /* 10 vars */) = 0 brk(NULL) = 0x555556eef000 brk(0x555556eefc40) = 0x555556eefc40 arch_prctl(ARCH_SET_FS, 0x555556eef300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor281743940", 4096) = 27 brk(0x555556f10c40) = 0x555556f10c40 brk(0x555556f11000) = 0x555556f11000 mprotect(0x7f7954566000, 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 openat(AT_FDCWD, "/sys/kernel/debug/failslab/ignore-gfp-wait", O_WRONLY|O_CLOEXEC) = 3 write(3, "N", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/sys/kernel/debug/fail_futex/ignore-private", O_WRONLY|O_CLOEXEC) = 3 write(3, "N", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/sys/kernel/debug/fail_page_alloc/ignore-gfp-highmem", O_WRONLY|O_CLOEXEC) = 3 write(3, "N", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/sys/kernel/debug/fail_page_alloc/ignore-gfp-wait", O_WRONLY|O_CLOEXEC) = 3 write(3, "N", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/sys/kernel/debug/fail_page_alloc/min-order", O_WRONLY|O_CLOEXEC) = 3 write(3, "0", 1) = 1 close(3) = 0 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3612 attached , child_tidptr=0x555556eef5d0) = 3612 [pid 3612] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 3612] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3612] setsid() = 1 [pid 3612] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 3612] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 3612] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 3612] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 3612] prlimit64(0, RLIMIT_CORE, {rlim_cur=0, rlim_max=0}, NULL) = 0 [pid 3612] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 3612] unshare(CLONE_NEWNS) = 0 [pid 3612] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 3612] unshare(CLONE_NEWIPC) = 0 [pid 3612] unshare(CLONE_NEWCGROUP) = 0 [pid 3612] unshare(CLONE_NEWUTS) = 0 [pid 3612] unshare(CLONE_SYSVSEM) = 0 [pid 3612] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3612] write(3, "16777216", 8) = 8 [pid 3612] close(3) = 0 [pid 3612] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 3612] write(3, "536870912", 9) = 9 [pid 3612] close(3) = 0 [pid 3612] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3612] write(3, "1024", 4) = 4 [pid 3612] close(3) = 0 [pid 3612] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3612] write(3, "8192", 4) = 4 [pid 3612] close(3) = 0 [pid 3612] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3612] write(3, "1024", 4) = 4 [pid 3612] close(3) = 0 [pid 3612] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 3612] write(3, "1024", 4) = 4 [pid 3612] close(3) = 0 [pid 3612] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 3612] write(3, "1024 1048576 500 1024", 21) = 21 [pid 3612] close(3) = 0 [pid 3612] getpid() = 1 [pid 3612] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b 83 fb 0a 0f 86 c8 fd ff ff 31 db 48 c7 44 24 20 0e 36 e0 45 [ 42.549765][ T3612] RSP: 0018:ffffc900039bf780 EFLAGS: 00010246 [ 42.556142][ T3612] RAX: ffffc900039bf7e0 RBX: 0000000000000012 RCX: 0000000000000000 [ 42.564457][ T3612] RDX: 0000000000000028 RSI: 0000000000000000 RDI: ffffc900039bf808 [ 42.572644][ T3612] RBP: ffffc900039bf8a0 R08: dffffc0000000000 R09: ffffc900039bf7e0 [ 42.580632][ T3612] R10: fffff52000737f01 R11: 1ffff92000737efc R12: 0000000000060a20 [ 42.588974][ T3612] R13: 1ffff92000737ef8 R14: dffffc0000000000 R15: 1ffff92000737ef4 [ 42.597222][ T3612] FS: 0000555556eef300(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 [ 42.606312][ T3612] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 42.613924][ T3612] CR2: 000055cad5d1d600 CR3: 000000001e90c000 CR4: 00000000003506e0 [ 42.621992][ T3612] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 42.629976][ T3612] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 42.638310][ T3612] Call Trace: [ 42.642190][ T3612] [ 42.645138][ T3612] ? zone_statistics+0x160/0x160 [ 42.650070][ T3612] ? tun_napi_alloc_frags+0x1af/0xb60 [ 42.656436][ T3612] ? rcu_read_lock_sched_held+0x89/0x130 [ 42.662640][ T3612] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 42.668616][ T3612] ? tun_napi_alloc_frags+0x1af/0xb60 [ 42.674215][ T3612] kmalloc_large_node+0x7c/0x180 [ 42.679149][ T3612] ? tun_napi_alloc_frags+0x1af/0xb60 [ 42.685102][ T3612] ? tun_napi_alloc_frags+0x1af/0xb60 [ 42.690489][ T3612] __kmalloc_node_track_caller+0x2f0/0x3f0 [ 42.696684][ T3612] ? tun_napi_alloc_frags+0x1af/0xb60 [ 42.703428][ T3612] pskb_expand_head+0x2ea/0x1280 [ 42.708369][ T3612] ? local_bh_enable+0x5/0x20 [ 42.713434][ T3612] ? napi_get_frags+0xb5/0x140 [ 42.718219][ T3612] tun_napi_alloc_frags+0x1af/0xb60 [ 42.723757][ T3612] ? rcu_lock_release+0x5/0x20 [ 42.728518][ T3612] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 42.735443][ T3612] tun_get_user+0x9ca/0x2540 [ 42.740034][ T3612] ? tun_ring_recv+0xcc0/0xcc0 [ 42.745026][ T3612] ? __lock_acquire+0x1f60/0x1f60 [ 42.750140][ T3612] tun_chr_write_iter+0x10a/0x1e0 [ 42.756053][ T3612] vfs_write+0x7b5/0xbb0 [ 42.760300][ T3612] ? file_end_write+0x230/0x230 [ 42.765275][ T3612] ? _raw_spin_unlock_irq+0x2a/0x40 [ 42.770508][ T3612] ? __fdget_pos+0x1d2/0x2e0 [ 42.775373][ T3612] ksys_write+0x19b/0x2c0 [ 42.779723][ T3612] ? print_irqtrace_events+0x220/0x220 [ 42.785479][ T3612] ? __ia32_sys_read+0x80/0x80 [ 42.790238][ T3612] ? syscall_enter_from_user_mode+0x2e/0x1d0 [ 42.796390][ T3612] ? syscall_enter_from_user_mode+0x86/0x1d0 [ 42.802813][ T3612] do_syscall_64+0x2b/0x70 [ 42.807254][ T3612] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 42.813475][ T3612] RIP: 0033:0x7f79544f2609 [ 42.817901][ T3612] Code: 28 c3 e8 4a 15 00 00 66 2e 0f 1f 84 00 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 42.837968][ T3612] RSP: 002b:00007ffe714d79f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 42.846679][ T3612] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f79544f2609 [ 42.859271][ T3612] RDX: 000000002000032a RSI: 0000000020000300 RDI: 0000000000000003 [ 42.867624][ T3612] RBP: 00007ffe714d7a10 R08: 0000000000000001 R09: 0000000000000000 [ 42.876568][ T3612] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 42.884688][ T3612] R13: 00007ffe714d7a30 R14: 0000000000000003 R15: 0000000000000000 [ 42.893056][ T3612] [ 42.896071][ T3612] Kernel panic - not syncing: panic_on_warn set ... [ 42.902639][ T3612] CPU: 0 PID: 3612 Comm: syz-executor281 Not tainted 6.0.0-rc5-syzkaller-00025-g3245cb65fd91 #0 [ 42.913038][ T3612] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 [ 42.923092][ T3612] Call Trace: [ 42.926364][ T3612] [ 42.929287][ T3612] dump_stack_lvl+0x1e3/0x2cb [ 42.933963][ T3612] ? io_alloc_page_table+0x110/0x110 [ 42.939239][ T3612] ? panic+0x76b/0x76b [ 42.943308][ T3612] ? vscnprintf+0x59/0x80 [ 42.947640][ T3612] ? __alloc_pages+0x2d0/0x560 [ 42.952409][ T3612] panic+0x316/0x76b [ 42.956297][ T3612] ? __warn+0x131/0x220 [ 42.960463][ T3612] ? fb_is_primary_device+0xcc/0xcc [ 42.965662][ T3612] ? __alloc_pages+0x30a/0x560 [ 42.970415][ T3612] __warn+0x1fa/0x220 [ 42.974389][ T3612] ? __alloc_pages+0x30a/0x560 [ 42.979143][ T3612] report_bug+0x1b3/0x2d0 [ 42.983468][ T3612] handle_bug+0x3d/0x70 [ 42.987616][ T3612] exc_invalid_op+0x16/0x40 [ 42.992111][ T3612] asm_exc_invalid_op+0x16/0x20 [ 42.996952][ T3612] RIP: 0010:__alloc_pages+0x30a/0x560 [ 43.002317][ T3612] Code: 5c 24 04 0f 85 f3 00 00 00 44 89 e1 81 e1 7f ff ff ff a9 00 00 04 00 41 0f 44 cc 41 89 cc e9 e3 00 00 00 c6 05 26 e8 40 0c 01 <0f> 0b 83 fb 0a 0f 86 c8 fd ff ff 31 db 48 c7 44 24 20 0e 36 e0 45 [ 43.021915][ T3612] RSP: 0018:ffffc900039bf780 EFLAGS: 00010246 [ 43.027992][ T3612] RAX: ffffc900039bf7e0 RBX: 0000000000000012 RCX: 0000000000000000 [ 43.035951][ T3612] RDX: 0000000000000028 RSI: 0000000000000000 RDI: ffffc900039bf808 [ 43.043910][ T3612] RBP: ffffc900039bf8a0 R08: dffffc0000000000 R09: ffffc900039bf7e0 [ 43.051871][ T3612] R10: fffff52000737f01 R11: 1ffff92000737efc R12: 0000000000060a20 [ 43.059832][ T3612] R13: 1ffff92000737ef8 R14: dffffc0000000000 R15: 1ffff92000737ef4 [ 43.067811][ T3612] ? zone_statistics+0x160/0x160 [ 43.072751][ T3612] ? tun_napi_alloc_frags+0x1af/0xb60 [ 43.078115][ T3612] ? rcu_read_lock_sched_held+0x89/0x130 [ 43.083737][ T3612] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 43.089726][ T3612] ? tun_napi_alloc_frags+0x1af/0xb60 [ 43.095116][ T3612] kmalloc_large_node+0x7c/0x180 [ 43.100082][ T3612] ? tun_napi_alloc_frags+0x1af/0xb60 [ 43.105454][ T3612] ? tun_napi_alloc_frags+0x1af/0xb60 [ 43.110816][ T3612] __kmalloc_node_track_caller+0x2f0/0x3f0 [ 43.116621][ T3612] ? tun_napi_alloc_frags+0x1af/0xb60 [ 43.121982][ T3612] pskb_expand_head+0x2ea/0x1280 [ 43.126910][ T3612] ? local_bh_enable+0x5/0x20 [ 43.131581][ T3612] ? napi_get_frags+0xb5/0x140 [ 43.136347][ T3612] tun_napi_alloc_frags+0x1af/0xb60 [ 43.141535][ T3612] ? rcu_lock_release+0x5/0x20 [ 43.146291][ T3612] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 43.152267][ T3612] tun_get_user+0x9ca/0x2540 [ 43.156872][ T3612] ? tun_ring_recv+0xcc0/0xcc0 [ 43.161631][ T3612] ? __lock_acquire+0x1f60/0x1f60 [ 43.166677][ T3612] tun_chr_write_iter+0x10a/0x1e0 [ 43.171711][ T3612] vfs_write+0x7b5/0xbb0 [ 43.175954][ T3612] ? file_end_write+0x230/0x230 [ 43.180803][ T3612] ? _raw_spin_unlock_irq+0x2a/0x40 [ 43.185997][ T3612] ? __fdget_pos+0x1d2/0x2e0 [ 43.190582][ T3612] ksys_write+0x19b/0x2c0 [ 43.194903][ T3612] ? print_irqtrace_events+0x220/0x220 [ 43.200360][ T3612] ? __ia32_sys_read+0x80/0x80 [ 43.205115][ T3612] ? syscall_enter_from_user_mode+0x2e/0x1d0 [ 43.211100][ T3612] ? syscall_enter_from_user_mode+0x86/0x1d0 [ 43.217076][ T3612] do_syscall_64+0x2b/0x70 [ 43.221486][ T3612] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 43.227374][ T3612] RIP: 0033:0x7f79544f2609 [ 43.231781][ T3612] Code: 28 c3 e8 4a 15 00 00 66 2e 0f 1f 84 00 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 43.251378][ T3612] RSP: 002b:00007ffe714d79f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 43.259783][ T3612] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f79544f2609 [ 43.267744][ T3612] RDX: 000000002000032a RSI: 0000000020000300 RDI: 0000000000000003 [ 43.275705][ T3612] RBP: 00007ffe714d7a10 R08: 0000000000000001 R09: 0000000000000000 [ 43.283667][ T3612] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 43.291642][ T3612] R13: 00007ffe714d7a30 R14: 0000000000000003 R15: 0000000000000000 [ 43.299627][ T3612] [ 43.302916][ T3612] Kernel Offset: disabled [ 43.307308][ T3612] Rebooting in 86400 seconds..