./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2648737697 <...> DUID 00:04:4f:52:9e:ef:28:bc:79:ad:2a:9e:d1:97:f2:e1:e7:a4 forked to background, child pid 4667 [ 21.680576][ T4668] 8021q: adding VLAN 0 to HW filter on device bond0 [ 21.690315][ T4668] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.55' (ECDSA) to the list of known hosts. execve("./syz-executor2648737697", ["./syz-executor2648737697"], 0x7ffc6e6018d0 /* 10 vars */) = 0 brk(NULL) = 0x5555573f2000 brk(0x5555573f2c40) = 0x5555573f2c40 arch_prctl(ARCH_SET_FS, 0x5555573f2300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor2648737697", 4096) = 28 brk(0x555557413c40) = 0x555557413c40 brk(0x555557414000) = 0x555557414000 mprotect(0x7fb0a6d9e000, 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=0x5555573f25d0) = 4999 ./strace-static-x86_64: Process 4999 attached [pid 4999] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 4999] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4999] setsid() = 1 [pid 4999] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 4999] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 4999] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 4999] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 4999] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 4999] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 4999] unshare(CLONE_NEWNS) = 0 [pid 4999] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 4999] unshare(CLONE_NEWIPC) = 0 [pid 4999] unshare(CLONE_NEWCGROUP) = 0 [pid 4999] unshare(CLONE_NEWUTS) = 0 [pid 4999] unshare(CLONE_SYSVSEM) = 0 [pid 4999] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 4999] write(3, "16777216", 8) = 8 [pid 4999] close(3) = 0 [pid 4999] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 4999] write(3, "536870912", 9) = 9 [pid 4999] close(3) = 0 [pid 4999] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 4999] write(3, "1024", 4) = 4 [pid 4999] close(3) = 0 [pid 4999] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 4999] write(3, "8192", 4) = 4 [pid 4999] close(3) = 0 [pid 4999] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 4999] write(3, "1024", 4) = 4 [pid 4999] close(3) = 0 [pid 4999] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 4999] write(3, "1024", 4) = 4 [pid 4999] close(3) = 0 [pid 4999] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 4999] write(3, "1024 1048576 500 1024", 21) = 21 [pid 4999] close(3) = 0 [pid 4999] getpid() = 1 [pid 4999] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b 5b 5d 41 5c 41 5d 41 5e e9 18 ce 76 f9 e8 13 ce 76 f9 48 89 [ 62.357834][ T4999] RSP: 0018:ffffc90003b1f6b0 EFLAGS: 00010286 [ 62.363885][ T4999] RAX: 0000000000000000 RBX: ffff88807be36000 RCX: 0000000000000000 [ 62.371966][ T4999] RDX: ffff888027898000 RSI: ffffffff814c03e7 RDI: 0000000000000001 [ 62.379974][ T4999] RBP: ffff88801e0c8000 R08: 0000000000000001 R09: 0000000000000000 [ 62.387960][ T4999] R10: 0000000000000000 R11: 0000000000000001 R12: ffff88801e0c80f0 [ 62.395932][ T4999] R13: ffff88807be36370 R14: ffff88801e0c8000 R15: 000000000000000e [ 62.403946][ T4999] FS: 00005555573f2300(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 62.412909][ T4999] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 62.419511][ T4999] CR2: 0000000020001000 CR3: 0000000079db7000 CR4: 0000000000350ee0 [ 62.427530][ T4999] Call Trace: [ 62.430816][ T4999] [ 62.433734][ T4999] __skb_gso_segment+0x3eb/0x6e0 [ 62.438716][ T4999] validate_xmit_skb+0x69c/0xef0 [ 62.443655][ T4999] ? lockdep_hardirqs_on+0x7d/0x100 [ 62.448899][ T4999] validate_xmit_skb_list+0xc0/0x130 [ 62.454202][ T4999] sch_direct_xmit+0x3d5/0xc30 [ 62.459019][ T4999] ? lock_sync+0x190/0x190 [ 62.463452][ T4999] ? lock_sync+0x190/0x190 [ 62.467905][ T4999] ? dev_watchdog+0x8b0/0x8b0 [ 62.472581][ T4999] ? do_raw_spin_trylock+0xb4/0x180 [ 62.477803][ T4999] ? do_raw_spin_lock+0x270/0x2b0 [ 62.482837][ T4999] __dev_queue_xmit+0x14d6/0x3b10 [ 62.487883][ T4999] ? netdev_core_pick_tx+0x390/0x390 [ 62.493179][ T4999] ? virtio_net_hdr_to_skb.constprop.0+0xa44/0x1220 [ 62.499788][ T4999] ? packet_rcv_spkt+0x620/0x620 [ 62.504731][ T4999] packet_xmit+0x260/0x390 [ 62.509172][ T4999] packet_sendmsg+0x347f/0x5030 [ 62.514032][ T4999] ? aa_sk_perm+0x31d/0xb10 [ 62.518554][ T4999] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 62.524540][ T4999] ? packet_lookup_frame.isra.0+0x1c0/0x1c0 [ 62.530460][ T4999] ? aa_af_perm+0x240/0x240 [ 62.534979][ T4999] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 62.540371][ T4999] ? packet_lookup_frame.isra.0+0x1c0/0x1c0 [ 62.546271][ T4999] sock_sendmsg+0xde/0x190 [ 62.550713][ T4999] __sys_sendto+0x23a/0x340 [ 62.555226][ T4999] ? __ia32_sys_getpeername+0xb0/0xb0 [ 62.560614][ T4999] ? do_raw_spin_lock+0x124/0x2b0 [ 62.565647][ T4999] ? _raw_spin_lock_irq+0x45/0x50 [ 62.571265][ T4999] ? ptrace_notify+0xfe/0x140 [ 62.575960][ T4999] ? lock_downgrade+0x690/0x690 [ 62.580874][ T4999] ? _raw_spin_unlock_irq+0x23/0x50 [ 62.586095][ T4999] ? lockdep_hardirqs_on+0x7d/0x100 [ 62.591329][ T4999] __x64_sys_sendto+0xe1/0x1b0 [ 62.596109][ T4999] ? syscall_trace_enter.constprop.0+0xb0/0x1e0 [ 62.602377][ T4999] do_syscall_64+0x39/0xb0 [ 62.606821][ T4999] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 62.612697][ T4999] RIP: 0033:0x7fb0a6d2a529 [ 62.617138][ T4999] 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 [ 62.636785][ T4999] RSP: 002b:00007ffc3a558338 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 62.645205][ T4999] RAX: ffffffffffffffda RBX: 00007ffc3a558358 RCX: 00007fb0a6d2a529 [ 62.653208][ T4999] RDX: 0000000000002378 RSI: 0000000020000080 RDI: 0000000000000003 [ 62.661195][ T4999] RBP: 0000000000000003 R08: 0000000000000000 R09: 00000000000002ff [ 62.669192][ T4999] R10: 0000000004000002 R11: 0000000000000246 R12: 00007ffc3a558360 [ 62.677197][ T4999] R13: 00007ffc3a558380 R14: 0000000000000000 R15: 0000000000000000 [ 62.685168][ T4999] [ 62.688226][ T4999] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 62.695513][ T4999] CPU: 1 PID: 4999 Comm: syz-executor264 Not tainted 6.4.0-rc2-syzkaller-00338-ge2065b8c1b01 #0 [ 62.705909][ T4999] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023 [ 62.715952][ T4999] Call Trace: [ 62.719219][ T4999] [ 62.722143][ T4999] dump_stack_lvl+0xd9/0x150 [ 62.726739][ T4999] panic+0x686/0x730 [ 62.730626][ T4999] ? panic_smp_self_stop+0xa0/0xa0 [ 62.735729][ T4999] ? show_trace_log_lvl+0x285/0x390 [ 62.740932][ T4999] ? skb_warn_bad_offload+0x119/0x230 [ 62.746299][ T4999] check_panic_on_warn+0xb1/0xc0 [ 62.751234][ T4999] __warn+0xf2/0x390 [ 62.755121][ T4999] ? skb_warn_bad_offload+0x119/0x230 [ 62.760490][ T4999] report_bug+0x2da/0x500 [ 62.764818][ T4999] handle_bug+0x3c/0x70 [ 62.768959][ T4999] exc_invalid_op+0x18/0x50 [ 62.773452][ T4999] asm_exc_invalid_op+0x1a/0x20 [ 62.778298][ T4999] RIP: 0010:skb_warn_bad_offload+0x119/0x230 [ 62.784273][ T4999] Code: 70 03 00 00 e8 48 ce 76 f9 4c 8d a5 f0 00 00 00 e8 3c ce 76 f9 4c 89 e9 4c 89 e2 4c 89 f6 48 c7 c7 00 31 5e 8b e8 b7 8d 3e f9 <0f> 0b 5b 5d 41 5c 41 5d 41 5e e9 18 ce 76 f9 e8 13 ce 76 f9 48 89 [ 62.803885][ T4999] RSP: 0018:ffffc90003b1f6b0 EFLAGS: 00010286 [ 62.810033][ T4999] RAX: 0000000000000000 RBX: ffff88807be36000 RCX: 0000000000000000 [ 62.817992][ T4999] RDX: ffff888027898000 RSI: ffffffff814c03e7 RDI: 0000000000000001 [ 62.825950][ T4999] RBP: ffff88801e0c8000 R08: 0000000000000001 R09: 0000000000000000 [ 62.833909][ T4999] R10: 0000000000000000 R11: 0000000000000001 R12: ffff88801e0c80f0 [ 62.841871][ T4999] R13: ffff88807be36370 R14: ffff88801e0c8000 R15: 000000000000000e [ 62.849843][ T4999] ? __warn_printk+0x187/0x310 [ 62.854642][ T4999] __skb_gso_segment+0x3eb/0x6e0 [ 62.859592][ T4999] validate_xmit_skb+0x69c/0xef0 [ 62.864518][ T4999] ? lockdep_hardirqs_on+0x7d/0x100 [ 62.869721][ T4999] validate_xmit_skb_list+0xc0/0x130 [ 62.874996][ T4999] sch_direct_xmit+0x3d5/0xc30 [ 62.879754][ T4999] ? lock_sync+0x190/0x190 [ 62.884168][ T4999] ? lock_sync+0x190/0x190 [ 62.888582][ T4999] ? dev_watchdog+0x8b0/0x8b0 [ 62.893246][ T4999] ? do_raw_spin_trylock+0xb4/0x180 [ 62.898459][ T4999] ? do_raw_spin_lock+0x270/0x2b0 [ 62.903485][ T4999] __dev_queue_xmit+0x14d6/0x3b10 [ 62.908507][ T4999] ? netdev_core_pick_tx+0x390/0x390 [ 62.913794][ T4999] ? virtio_net_hdr_to_skb.constprop.0+0xa44/0x1220 [ 62.920378][ T4999] ? packet_rcv_spkt+0x620/0x620 [ 62.925307][ T4999] packet_xmit+0x260/0x390 [ 62.929722][ T4999] packet_sendmsg+0x347f/0x5030 [ 62.934611][ T4999] ? aa_sk_perm+0x31d/0xb10 [ 62.939109][ T4999] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 62.945081][ T4999] ? packet_lookup_frame.isra.0+0x1c0/0x1c0 [ 62.950973][ T4999] ? aa_af_perm+0x240/0x240 [ 62.955474][ T4999] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 62.960751][ T4999] ? packet_lookup_frame.isra.0+0x1c0/0x1c0 [ 62.966636][ T4999] sock_sendmsg+0xde/0x190 [ 62.971045][ T4999] __sys_sendto+0x23a/0x340 [ 62.975545][ T4999] ? __ia32_sys_getpeername+0xb0/0xb0 [ 62.980923][ T4999] ? do_raw_spin_lock+0x124/0x2b0 [ 62.985945][ T4999] ? _raw_spin_lock_irq+0x45/0x50 [ 62.991046][ T4999] ? ptrace_notify+0xfe/0x140 [ 62.995728][ T4999] ? lock_downgrade+0x690/0x690 [ 63.000572][ T4999] ? _raw_spin_unlock_irq+0x23/0x50 [ 63.005851][ T4999] ? lockdep_hardirqs_on+0x7d/0x100 [ 63.011042][ T4999] __x64_sys_sendto+0xe1/0x1b0 [ 63.015798][ T4999] ? syscall_trace_enter.constprop.0+0xb0/0x1e0 [ 63.022035][ T4999] do_syscall_64+0x39/0xb0 [ 63.026447][ T4999] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 63.032333][ T4999] RIP: 0033:0x7fb0a6d2a529 [ 63.036742][ T4999] 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 [ 63.056342][ T4999] RSP: 002b:00007ffc3a558338 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 63.064751][ T4999] RAX: ffffffffffffffda RBX: 00007ffc3a558358 RCX: 00007fb0a6d2a529 [ 63.072717][ T4999] RDX: 0000000000002378 RSI: 0000000020000080 RDI: 0000000000000003 [ 63.080680][ T4999] RBP: 0000000000000003 R08: 0000000000000000 R09: 00000000000002ff [ 63.088644][ T4999] R10: 0000000004000002 R11: 0000000000000246 R12: 00007ffc3a558360 [ 63.096605][ T4999] R13: 00007ffc3a558380 R14: 0000000000000000 R15: 0000000000000000 [ 63.104572][ T4999] [ 63.108284][ T4999] Kernel Offset: disabled [ 63.112691][ T4999] Rebooting in 86400 seconds..