./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor842209294 <...> DUID 00:04:82:de:1c:d8:54:65:1e:66:46:a5:2a:00:0a:c0:6e:68 forked to background, child pid 3183 [ 26.635636][ T3184] 8021q: adding VLAN 0 to HW filter on device bond0 [ 26.641708][ T3184] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.181' (ECDSA) to the list of known hosts. execve("./syz-executor842209294", ["./syz-executor842209294"], 0x7ffe7428eb00 /* 10 vars */) = 0 brk(NULL) = 0x5555555a4000 brk(0x5555555a4c40) = 0x5555555a4c40 arch_prctl(ARCH_SET_FS, 0x5555555a4300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor842209294", 4096) = 27 brk(0x5555555c5c40) = 0x5555555c5c40 brk(0x5555555c6000) = 0x5555555c6000 mprotect(0x7f1ae46d1000, 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 3605 attached , child_tidptr=0x5555555a45d0) = 3605 [pid 3605] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 3605] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3605] setsid() = 1 [pid 3605] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 3605] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 3605] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 3605] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 3605] prlimit64(0, RLIMIT_CORE, {rlim_cur=0, rlim_max=0}, NULL) = 0 [pid 3605] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 3605] unshare(CLONE_NEWNS) = 0 [pid 3605] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 3605] unshare(CLONE_NEWIPC) = 0 [pid 3605] unshare(CLONE_NEWCGROUP) = 0 [pid 3605] unshare(CLONE_NEWUTS) = 0 [pid 3605] unshare(CLONE_SYSVSEM) = 0 [pid 3605] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3605] write(3, "16777216", 8) = 8 [pid 3605] close(3) = 0 [pid 3605] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 3605] write(3, "536870912", 9) = 9 [pid 3605] close(3) = 0 [pid 3605] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3605] write(3, "1024", 4) = 4 [pid 3605] close(3) = 0 [pid 3605] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3605] write(3, "8192", 4) = 4 [pid 3605] close(3) = 0 [pid 3605] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3605] write(3, "1024", 4) = 4 [pid 3605] close(3) = 0 [pid 3605] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 3605] write(3, "1024", 4) = 4 [pid 3605] close(3) = 0 [pid 3605] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 3605] write(3, "1024 1048576 500 1024", 21) = 21 [pid 3605] close(3) = 0 [pid 3605] getpid() = 1 [pid 3605] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b e9 66 fa ff ff 48 8b 7c 24 08 e8 0b 2d d3 f9 e9 03 f8 ff ff [ 45.015696][ T3605] RSP: 0018:ffffc9000304f4c0 EFLAGS: 00010293 [ 45.021841][ T3605] RAX: 0000000000000000 RBX: 000000000000ffff RCX: 0000000000000000 [ 45.029882][ T3605] RDX: ffff888023d63b00 RSI: ffffffff87f2cd44 RDI: 0000000000000003 [ 45.037877][ T3605] RBP: ffff8880201fa500 R08: 0000000000000001 R09: 000000000000ffff [ 45.045926][ T3605] R10: ffffffff87f2c7a7 R11: 00000000ffffffff R12: ffff888078c0c000 [ 45.053990][ T3605] R13: ffff8880201fa5b4 R14: 0000000000000004 R15: ffff88807c4bc400 [ 45.062130][ T3605] FS: 00005555555a4300(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 45.071162][ T3605] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 45.077769][ T3605] CR2: 00007f1ae46d5150 CR3: 0000000023643000 CR4: 00000000003506f0 [ 45.085823][ T3605] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 45.093910][ T3605] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 45.101968][ T3605] Call Trace: [ 45.105253][ T3605] [ 45.108262][ T3605] dev_hard_start_xmit+0x188/0x880 [ 45.113402][ T3605] __dev_queue_xmit+0x2b05/0x38f0 [ 45.118502][ T3605] ? __lock_acquire+0x163e/0x56c0 [ 45.123545][ T3605] ? netdev_core_pick_tx+0x2e0/0x2e0 [ 45.128914][ T3605] ? __lock_acquire+0x163e/0x56c0 [ 45.133998][ T3605] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 45.139783][ T3605] ? skb_release_data+0x12f/0x810 [ 45.144832][ T3605] ? __sanitizer_cov_trace_const_cmp2+0x22/0x80 [ 45.151181][ T3605] ? skb_headers_offset_update+0x125/0x250 [ 45.157007][ T3605] ? pskb_expand_head+0x55d/0x1070 [ 45.162229][ T3605] __bpf_redirect+0x838/0xe50 [ 45.166942][ T3605] ? skb_ensure_writable+0xdc/0x450 [ 45.172268][ T3605] bpf_clone_redirect+0x2ae/0x420 [ 45.177317][ T3605] bpf_prog_e2f29814702bf05a+0x56/0x5e [ 45.182880][ T3605] ? find_held_lock+0x2d/0x110 [ 45.187760][ T3605] ? bpf_test_timer_enter+0xa0/0x160 [ 45.193121][ T3605] ? lock_downgrade+0x6e0/0x6e0 [ 45.198015][ T3605] ? ktime_get+0x38a/0x470 [ 45.202517][ T3605] ? lockdep_hardirqs_on+0x79/0x100 [ 45.207748][ T3605] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 45.213571][ T3605] ? ktime_get+0x30b/0x470 [ 45.218110][ T3605] ? bpf_test_timer_enter+0xa0/0x160 [ 45.223484][ T3605] bpf_test_run+0x386/0x9d0 [ 45.228015][ T3605] ? bpf_test_timer_continue+0x420/0x420 [ 45.233757][ T3605] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 45.240103][ T3605] ? __phys_addr+0xc4/0x140 [ 45.244615][ T3605] ? __sanitizer_cov_trace_const_cmp2+0x22/0x80 [ 45.250928][ T3605] ? eth_type_trans+0x29e/0x640 [ 45.255935][ T3605] ? __build_skb+0x50/0x60 [ 45.260422][ T3605] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 45.266682][ T3605] bpf_prog_test_run_skb+0xb5e/0x1e10 [ 45.272142][ T3605] ? bpf_prog_test_run_raw_tp+0x640/0x640 [ 45.277886][ T3605] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 45.284214][ T3605] ? __fget_light+0x20f/0x270 [ 45.288979][ T3605] ? bpf_prog_test_run_raw_tp+0x640/0x640 [ 45.294704][ T3605] ? __sys_bpf+0x1526/0x5700 [ 45.299363][ T3605] __sys_bpf+0x15c1/0x5700 [ 45.303798][ T3605] ? lock_release+0x780/0x780 [ 45.308551][ T3605] ? bpf_perf_link_attach+0x520/0x520 [ 45.313941][ T3605] ? rwlock_bug.part.0+0x90/0x90 [ 45.318944][ T3605] ? _raw_spin_lock_irq+0x41/0x50 [ 45.323991][ T3605] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 45.330304][ T3605] ? find_held_lock+0x2d/0x110 [ 45.335093][ T3605] ? _raw_spin_unlock_irq+0x1f/0x40 [ 45.340380][ T3605] ? lockdep_hardirqs_on+0x79/0x100 [ 45.345596][ T3605] ? trace_hardirqs_on+0x38/0x1c0 [ 45.350687][ T3605] __x64_sys_bpf+0x75/0xb0 [ 45.355131][ T3605] do_syscall_64+0x35/0xb0 [ 45.359619][ T3605] entry_SYSCALL_64_after_hwframe+0x46/0xb0 [ 45.365542][ T3605] RIP: 0033:0x7f1ae465c4d9 [ 45.370023][ T3605] 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 [ 45.389728][ T3605] RSP: 002b:00007fffbde390d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 45.398218][ T3605] RAX: ffffffffffffffda RBX: 00007fffbde390e8 RCX: 00007f1ae465c4d9 [ 45.406325][ T3605] RDX: 0000000000000048 RSI: 0000000020000080 RDI: 000000000000000a [ 45.414401][ T3605] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 45.422451][ T3605] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffbde390f0 [ 45.430494][ T3605] R13: 00007fffbde39110 R14: 0000000000000000 R15: 0000000000000000 [ 45.438575][ T3605] [ 45.441603][ T3605] Kernel panic - not syncing: panic_on_warn set ... [ 45.448183][ T3605] CPU: 0 PID: 3605 Comm: syz-executor842 Not tainted 5.18.0-syzkaller-04992-ge0491b11c131 #0 [ 45.458339][ T3605] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.468380][ T3605] Call Trace: [ 45.471649][ T3605] [ 45.474571][ T3605] dump_stack_lvl+0xcd/0x134 [ 45.479156][ T3605] panic+0x2d7/0x636 [ 45.483046][ T3605] ? panic_print_sys_info.part.0+0x10b/0x10b [ 45.489029][ T3605] ? __warn.cold+0x1d9/0x2cd [ 45.493613][ T3605] ? ipgre_xmit+0x894/0x970 [ 45.498108][ T3605] __warn.cold+0x1ea/0x2cd [ 45.502517][ T3605] ? ipgre_xmit+0x894/0x970 [ 45.507021][ T3605] report_bug+0x1bc/0x210 [ 45.511346][ T3605] handle_bug+0x3c/0x60 [ 45.515493][ T3605] exc_invalid_op+0x14/0x40 [ 45.519988][ T3605] asm_exc_invalid_op+0x1b/0x20 [ 45.524839][ T3605] RIP: 0010:ipgre_xmit+0x894/0x970 [ 45.529942][ T3605] Code: 89 14 24 e8 0e 2d d3 f9 48 8b 14 24 e9 be f9 ff ff e8 20 2d d3 f9 e9 02 fa ff ff e8 06 2d d3 f9 e9 55 fa ff ff e8 1c e7 86 f9 <0f> 0b e9 66 fa ff ff 48 8b 7c 24 08 e8 0b 2d d3 f9 e9 03 f8 ff ff [ 45.549541][ T3605] RSP: 0018:ffffc9000304f4c0 EFLAGS: 00010293 [ 45.555598][ T3605] RAX: 0000000000000000 RBX: 000000000000ffff RCX: 0000000000000000 [ 45.563557][ T3605] RDX: ffff888023d63b00 RSI: ffffffff87f2cd44 RDI: 0000000000000003 [ 45.571529][ T3605] RBP: ffff8880201fa500 R08: 0000000000000001 R09: 000000000000ffff [ 45.579495][ T3605] R10: ffffffff87f2c7a7 R11: 00000000ffffffff R12: ffff888078c0c000 [ 45.587453][ T3605] R13: ffff8880201fa5b4 R14: 0000000000000004 R15: ffff88807c4bc400 [ 45.595434][ T3605] ? ipgre_xmit+0x2f7/0x970 [ 45.599947][ T3605] ? ipgre_xmit+0x894/0x970 [ 45.604481][ T3605] dev_hard_start_xmit+0x188/0x880 [ 45.609596][ T3605] __dev_queue_xmit+0x2b05/0x38f0 [ 45.614619][ T3605] ? __lock_acquire+0x163e/0x56c0 [ 45.619661][ T3605] ? netdev_core_pick_tx+0x2e0/0x2e0 [ 45.624937][ T3605] ? __lock_acquire+0x163e/0x56c0 [ 45.629959][ T3605] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 45.635686][ T3605] ? skb_release_data+0x12f/0x810 [ 45.640703][ T3605] ? __sanitizer_cov_trace_const_cmp2+0x22/0x80 [ 45.646933][ T3605] ? skb_headers_offset_update+0x125/0x250 [ 45.652740][ T3605] ? pskb_expand_head+0x55d/0x1070 [ 45.657850][ T3605] __bpf_redirect+0x838/0xe50 [ 45.662523][ T3605] ? skb_ensure_writable+0xdc/0x450 [ 45.667714][ T3605] bpf_clone_redirect+0x2ae/0x420 [ 45.672739][ T3605] bpf_prog_e2f29814702bf05a+0x56/0x5e [ 45.678206][ T3605] ? find_held_lock+0x2d/0x110 [ 45.682965][ T3605] ? bpf_test_timer_enter+0xa0/0x160 [ 45.688244][ T3605] ? lock_downgrade+0x6e0/0x6e0 [ 45.693092][ T3605] ? ktime_get+0x38a/0x470 [ 45.697503][ T3605] ? lockdep_hardirqs_on+0x79/0x100 [ 45.702695][ T3605] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 45.708426][ T3605] ? ktime_get+0x30b/0x470 [ 45.712846][ T3605] ? bpf_test_timer_enter+0xa0/0x160 [ 45.718124][ T3605] bpf_test_run+0x386/0x9d0 [ 45.722630][ T3605] ? bpf_test_timer_continue+0x420/0x420 [ 45.728257][ T3605] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 45.734495][ T3605] ? __phys_addr+0xc4/0x140 [ 45.739014][ T3605] ? __sanitizer_cov_trace_const_cmp2+0x22/0x80 [ 45.745245][ T3605] ? eth_type_trans+0x29e/0x640 [ 45.750092][ T3605] ? __build_skb+0x50/0x60 [ 45.754501][ T3605] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 45.760734][ T3605] bpf_prog_test_run_skb+0xb5e/0x1e10 [ 45.766130][ T3605] ? bpf_prog_test_run_raw_tp+0x640/0x640 [ 45.771843][ T3605] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 45.778072][ T3605] ? __fget_light+0x20f/0x270 [ 45.782741][ T3605] ? bpf_prog_test_run_raw_tp+0x640/0x640 [ 45.788465][ T3605] ? __sys_bpf+0x1526/0x5700 [ 45.793047][ T3605] __sys_bpf+0x15c1/0x5700 [ 45.797456][ T3605] ? lock_release+0x780/0x780 [ 45.802130][ T3605] ? bpf_perf_link_attach+0x520/0x520 [ 45.807494][ T3605] ? rwlock_bug.part.0+0x90/0x90 [ 45.812426][ T3605] ? _raw_spin_lock_irq+0x41/0x50 [ 45.817445][ T3605] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 45.823681][ T3605] ? find_held_lock+0x2d/0x110 [ 45.828448][ T3605] ? _raw_spin_unlock_irq+0x1f/0x40 [ 45.833642][ T3605] ? lockdep_hardirqs_on+0x79/0x100 [ 45.838848][ T3605] ? trace_hardirqs_on+0x38/0x1c0 [ 45.843868][ T3605] __x64_sys_bpf+0x75/0xb0 [ 45.848292][ T3605] do_syscall_64+0x35/0xb0 [ 45.852702][ T3605] entry_SYSCALL_64_after_hwframe+0x46/0xb0 [ 45.858586][ T3605] RIP: 0033:0x7f1ae465c4d9 [ 45.862994][ T3605] 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 [ 45.882590][ T3605] RSP: 002b:00007fffbde390d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 45.891000][ T3605] RAX: ffffffffffffffda RBX: 00007fffbde390e8 RCX: 00007f1ae465c4d9 [ 45.898975][ T3605] RDX: 0000000000000048 RSI: 0000000020000080 RDI: 000000000000000a [ 45.906953][ T3605] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 45.914918][ T3605] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffbde390f0 [ 45.922877][ T3605] R13: 00007fffbde39110 R14: 0000000000000000 R15: 0000000000000000 [ 45.930856][ T3605] [ 45.934149][ T3605] Kernel Offset: disabled [ 45.938590][ T3605] Rebooting in 86400 seconds..