./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor51362397 <...> Warning: Permanently added '10.128.1.9' (ED25519) to the list of known hosts. execve("./syz-executor51362397", ["./syz-executor51362397"], 0x7ffe15a1e800 /* 10 vars */) = 0 brk(NULL) = 0x555557031000 brk(0x555557031d00) = 0x555557031d00 arch_prctl(ARCH_SET_FS, 0x555557031380) = 0 set_tid_address(0x555557031650) = 5060 set_robust_list(0x555557031660, 24) = 0 rseq(0x555557031ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor51362397", 4096) = 26 getrandom("\x9b\x8a\xc9\x99\xbb\x6c\x5d\xa7", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555557031d00 brk(0x555557052d00) = 0x555557052d00 brk(0x555557053000) = 0x555557053000 mprotect(0x7f2182200000, 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 5061 attached , child_tidptr=0x555557031650) = 5061 [pid 5061] set_robust_list(0x555557031660, 24) = 0 [pid 5061] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5061] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5061] setsid() = 1 [pid 5061] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5061] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5061] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5061] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5061] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5061] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5061] unshare(CLONE_NEWNS) = 0 [pid 5061] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5061] unshare(CLONE_NEWIPC) = 0 [pid 5061] unshare(CLONE_NEWCGROUP) = 0 [pid 5061] unshare(CLONE_NEWUTS) = 0 [pid 5061] unshare(CLONE_SYSVSEM) = 0 [pid 5061] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5061] write(3, "16777216", 8) = 8 [pid 5061] close(3) = 0 [pid 5061] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5061] write(3, "536870912", 9) = 9 [pid 5061] close(3) = 0 [pid 5061] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5061] write(3, "1024", 4) = 4 [pid 5061] close(3) = 0 [pid 5061] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5061] write(3, "8192", 4) = 4 [pid 5061] close(3) = 0 [pid 5061] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5061] write(3, "1024", 4) = 4 [pid 5061] close(3) = 0 [pid 5061] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5061] write(3, "1024", 4) = 4 [pid 5061] close(3) = 0 [pid 5061] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5061] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5061] close(3) = 0 [pid 5061] getpid() = 1 [pid 5061] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< b6 04 02 84 c0 74 08 3c 03 0f 8e 8a 21 00 00 48 8b 84 24 f8 00 [ 83.086397][ T5061] RSP: 0018:ffffc90003a3f3d0 EFLAGS: 00010202 [ 83.092444][ T5061] RAX: dffffc0000000000 RBX: 0000000000010046 RCX: ffffffff886a34e7 [ 83.100398][ T5061] RDX: 000000000000000e RSI: ffffffff886a4470 RDI: 0000000000000070 [ 83.108370][ T5061] RBP: ffffc90003a3f578 R08: 0000000000000005 R09: 000000000000ffff [ 83.116328][ T5061] R10: 000000000000ffff R11: 0000000000000002 R12: ffff88801fa32ac0 [ 83.124294][ T5061] R13: 0000000000010000 R14: 000000000000ffff R15: 0000000000000046 [ 83.132259][ T5061] FS: 0000555557031380(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 83.141172][ T5061] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 83.147741][ T5061] CR2: 0000000020010000 CR3: 00000000251ae000 CR4: 00000000003506f0 [ 83.155695][ T5061] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 83.163650][ T5061] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 83.171604][ T5061] Call Trace: [ 83.174865][ T5061] [ 83.177776][ T5061] ? show_regs+0x8f/0xa0 [ 83.182008][ T5061] ? die_addr+0x4f/0xd0 [ 83.186150][ T5061] ? exc_general_protection+0x155/0x230 [ 83.191686][ T5061] ? asm_exc_general_protection+0x26/0x30 [ 83.197406][ T5061] ? skb_segment+0x877/0x3f30 [ 83.202070][ T5061] ? skb_segment+0x1800/0x3f30 [ 83.206822][ T5061] ? skb_segment+0x181d/0x3f30 [ 83.211599][ T5061] ? get_random_u32+0x584/0x7e0 [ 83.216440][ T5061] ? skb_zerocopy_iter_stream+0x6a0/0x6a0 [ 83.222145][ T5061] ? ip6_find_1stfragopt+0x163/0x2c0 [ 83.227414][ T5061] udp6_ufo_fragment+0xa0e/0xd00 [ 83.232334][ T5061] ? udp6_gro_receive+0xfb0/0xfb0 [ 83.237429][ T5061] ? ipv6_gso_pull_exthdrs+0x224/0x510 [ 83.242870][ T5061] ipv6_gso_segment+0x534/0x17e0 [ 83.247793][ T5061] ? sit_ip6ip6_gro_receive+0x110/0x110 [ 83.253319][ T5061] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 83.259215][ T5061] skb_mac_gso_segment+0x290/0x610 [ 83.264314][ T5061] ? sit_ip6ip6_gro_receive+0x110/0x110 [ 83.269839][ T5061] ? netdev_nl_queue_get_dumpit+0x370/0x370 [ 83.275809][ T5061] ? lock_acquire+0x1ae/0x520 [ 83.280499][ T5061] __skb_gso_segment+0x339/0x710 [ 83.285425][ T5061] validate_xmit_skb+0x36c/0xeb0 [ 83.290345][ T5061] ? preempt_count_sub+0x160/0x160 [ 83.295439][ T5061] __dev_queue_xmit+0x6e8/0x3d30 [ 83.300363][ T5061] ? _copy_from_iter+0x2c1/0x10f0 [ 83.305378][ T5061] ? netdev_core_pick_tx+0x370/0x370 [ 83.310644][ T5061] ? skb_partial_csum_set+0x202/0x390 [ 83.316001][ T5061] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 83.321877][ T5061] ? virtio_net_hdr_to_skb.constprop.0+0x4e4/0x1380 [ 83.328451][ T5061] ? packet_create+0x8e0/0x8e0 [ 83.333200][ T5061] packet_xmit+0x237/0x350 [ 83.337601][ T5061] packet_sendmsg+0x24aa/0x5200 [ 83.342442][ T5061] ? preempt_count_sub+0x160/0x160 [ 83.347535][ T5061] ? find_held_lock+0x2d/0x110 [ 83.352286][ T5061] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 83.358168][ T5061] ? aa_sk_perm+0x2f8/0xb40 [ 83.362663][ T5061] ? packet_notifier+0x8c0/0x8c0 [ 83.367591][ T5061] ? aa_af_perm+0x250/0x250 [ 83.372077][ T5061] ? __might_fault+0xe6/0x1a0 [ 83.376863][ T5061] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 83.382136][ T5061] ? packet_notifier+0x8c0/0x8c0 [ 83.387059][ T5061] __sock_sendmsg+0xd5/0x180 [ 83.391633][ T5061] __sys_sendto+0x255/0x340 [ 83.396123][ T5061] ? __ia32_sys_getpeername+0xb0/0xb0 [ 83.401496][ T5061] ? spin_bug+0x1d0/0x1d0 [ 83.405807][ T5061] ? cgroup_update_frozen+0x144/0x6b0 [ 83.411185][ T5061] ? ptrace_notify+0xf4/0x130 [ 83.415850][ T5061] ? _raw_spin_unlock_irq+0x23/0x50 [ 83.421030][ T5061] ? lockdep_hardirqs_on+0x7d/0x110 [ 83.426218][ T5061] ? _raw_spin_unlock_irq+0x2e/0x50 [ 83.431399][ T5061] __x64_sys_sendto+0xe0/0x1b0 [ 83.436151][ T5061] ? syscall_enter_from_user_mode+0x107/0x120 [ 83.442222][ T5061] do_syscall_64+0x40/0x110 [ 83.446726][ T5061] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 83.452612][ T5061] RIP: 0033:0x7f2182188419 [ 83.457008][ T5061] Code: 48 83 c4 28 c3 e8 d7 19 00 00 0f 1f 80 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 b8 ff ff ff f7 d8 64 89 01 48 [ 83.476603][ T5061] RSP: 002b:00007ffee4c8a268 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 83.485002][ T5061] RAX: ffffffffffffffda RBX: 00007f21821d5390 RCX: 00007f2182188419 [ 83.492958][ T5061] RDX: 0000000000010048 RSI: 00000000200000c0 RDI: 0000000000000003 [ 83.500911][ T5061] RBP: 0000000000000003 R08: 0000000020000540 R09: 0000000000000014 [ 83.508869][ T5061] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffee4c8a2c0 [ 83.516825][ T5061] R13: 00007ffee4c8a290 R14: 0000000000000001 R15: 00007ffee4c8a2c0 [ 83.524787][ T5061] [ 83.527785][ T5061] Modules linked in: [ 83.531739][ T5061] ---[ end trace 0000000000000000 ]--- [ 83.537217][ T5061] RIP: 0010:skb_segment+0x181d/0x3f30 [ 83.542618][ T5061] Code: 83 e3 02 e9 fb ed ff ff e8 e0 4d 1d f9 48 8b 84 24 f8 00 00 00 48 8d 78 70 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 8a 21 00 00 48 8b 84 24 f8 00 [ 83.562245][ T5061] RSP: 0018:ffffc90003a3f3d0 EFLAGS: 00010202 [ 83.568320][ T5061] RAX: dffffc0000000000 RBX: 0000000000010046 RCX: ffffffff886a34e7 [ 83.576303][ T5061] RDX: 000000000000000e RSI: ffffffff886a4470 RDI: 0000000000000070 [ 83.584289][ T5061] RBP: ffffc90003a3f578 R08: 0000000000000005 R09: 000000000000ffff [ 83.592263][ T5061] R10: 000000000000ffff R11: 0000000000000002 R12: ffff88801fa32ac0 [ 83.600248][ T5061] R13: 0000000000010000 R14: 000000000000ffff R15: 0000000000000046 [ 83.608237][ T5061] FS: 0000555557031380(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 83.617179][ T5061] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 83.623764][ T5061] CR2: 0000000020010000 CR3: 00000000251ae000 CR4: 00000000003506f0 [ 83.631745][ T5061] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 83.639729][ T5061] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 83.647710][ T5061] Kernel panic - not syncing: Fatal exception in interrupt [ 83.655161][ T5061] Kernel Offset: disabled [ 83.659471][ T5061] Rebooting in 86400 seconds..