./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3534333037 <...> Warning: Permanently added '10.128.0.194' (ECDSA) to the list of known hosts. execve("./syz-executor3534333037", ["./syz-executor3534333037"], 0x7fffdff4d570 /* 10 vars */) = 0 brk(NULL) = 0x555556074000 brk(0x555556074c40) = 0x555556074c40 arch_prctl(ARCH_SET_FS, 0x555556074300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor3534333037", 4096) = 28 brk(0x555556095c40) = 0x555556095c40 brk(0x555556096000) = 0x555556096000 mprotect(0x7fae96c5b000, 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 3606 attached , child_tidptr=0x5555560745d0) = 3606 [pid 3606] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 3606] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3606] setsid() = 1 [pid 3606] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 3606] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 3606] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 3606] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 3606] prlimit64(0, RLIMIT_CORE, {rlim_cur=0, rlim_max=0}, NULL) = 0 [pid 3606] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 3606] unshare(CLONE_NEWNS) = 0 [pid 3606] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 3606] unshare(CLONE_NEWIPC) = 0 [pid 3606] unshare(CLONE_NEWCGROUP) = 0 [pid 3606] unshare(CLONE_NEWUTS) = 0 [pid 3606] unshare(CLONE_SYSVSEM) = 0 [pid 3606] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3606] write(3, "16777216", 8) = 8 [pid 3606] close(3) = 0 [pid 3606] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 3606] write(3, "536870912", 9) = 9 [pid 3606] close(3) = 0 [pid 3606] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3606] write(3, "1024", 4) = 4 [pid 3606] close(3) = 0 [pid 3606] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3606] write(3, "8192", 4) = 4 [pid 3606] close(3) = 0 [pid 3606] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3606] write(3, "1024", 4) = 4 [pid 3606] close(3) = 0 [pid 3606] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 3606] write(3, "1024", 4) = 4 [pid 3606] close(3) = 0 [pid 3606] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 3606] write(3, "1024 1048576 500 1024", 21) = 21 [pid 3606] close(3) = 0 [pid 3606] getpid() = 1 [pid 3606] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b 48 89 df e8 27 1f 68 fa e9 7f fd ff ff e8 3d 1f 68 fa e9 48 [ 49.496061][ T3606] RSP: 0018:ffffc90002fdf4b8 EFLAGS: 00010293 [ 49.502118][ T3606] RAX: 0000000000000000 RBX: 0000000000000012 RCX: 0000000000000000 [ 49.510077][ T3606] RDX: ffff888012b48000 RSI: ffffffff875ddb0f RDI: 0000000000000003 [ 49.518120][ T3606] RBP: 0000000000005dbc R08: 0000000000000fe0 R09: 0000000000005dbc [ 49.526078][ T3606] R10: ffffffff875dd7ac R11: 0000000000000000 R12: 0000000000000fe0 [ 49.534034][ T3606] R13: ffff88801c97fdc0 R14: 1ffff920005fbe9b R15: 0000000000000012 [ 49.542107][ T3606] FS: 0000555556074300(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 49.551030][ T3606] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 49.557613][ T3606] CR2: 00000000200015c0 CR3: 00000000714d8000 CR4: 00000000003506f0 [ 49.565597][ T3606] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 49.573565][ T3606] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 49.581528][ T3606] Call Trace: [ 49.584805][ T3606] [ 49.587725][ T3606] ? skb_eth_gso_segment+0x250/0x250 [ 49.593020][ T3606] __skb_gso_segment+0x327/0x6e0 [ 49.597964][ T3606] validate_xmit_skb+0x6bc/0xf10 [ 49.602904][ T3606] validate_xmit_skb_list+0xbc/0x120 [ 49.608197][ T3606] sch_direct_xmit+0x3d1/0xbe0 [ 49.612957][ T3606] ? lock_release+0x780/0x780 [ 49.617637][ T3606] ? lock_release+0x780/0x780 [ 49.622304][ T3606] ? dev_watchdog+0x8f0/0x8f0 [ 49.626972][ T3606] ? do_raw_spin_trylock+0xb0/0x180 [ 49.632159][ T3606] ? do_raw_spin_lock+0x280/0x2a0 [ 49.637264][ T3606] __dev_queue_xmit+0x14a1/0x3a00 [ 49.642282][ T3606] ? netdev_core_pick_tx+0x2e0/0x2e0 [ 49.647561][ T3606] ? skb_partial_csum_set+0x21b/0x2b0 [ 49.652938][ T3606] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 49.659168][ T3606] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 49.664871][ T3606] ? virtio_net_hdr_to_skb.constprop.0+0xf3/0x1150 [ 49.671363][ T3606] ? tpacket_destruct_skb+0x7c0/0x7c0 [ 49.676725][ T3606] packet_sendmsg+0x21cb/0x5550 [ 49.681568][ T3606] ? aa_sk_perm+0x30f/0xaa0 [ 49.686058][ T3606] ? _copy_from_user+0xf9/0x170 [ 49.690896][ T3606] ? packet_lookup_frame.isra.0+0x1c0/0x1c0 [ 49.696777][ T3606] ? aa_af_perm+0x230/0x230 [ 49.701268][ T3606] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 49.707497][ T3606] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 49.713820][ T3606] ? packet_lookup_frame.isra.0+0x1c0/0x1c0 [ 49.719881][ T3606] sock_sendmsg+0xcf/0x120 [ 49.724283][ T3606] ____sys_sendmsg+0x6eb/0x810 [ 49.729030][ T3606] ? kernel_sendmsg+0x50/0x50 [ 49.733701][ T3606] ? do_recvmmsg+0x6d0/0x6d0 [ 49.738387][ T3606] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 49.744357][ T3606] ? lockdep_hardirqs_on+0x79/0x100 [ 49.749544][ T3606] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 49.755521][ T3606] ___sys_sendmsg+0xf3/0x170 [ 49.760099][ T3606] ? sendmsg_copy_msghdr+0x160/0x160 [ 49.765375][ T3606] ? lock_release+0x780/0x780 [ 49.770040][ T3606] ? ptrace_stop+0x590/0xb30 [ 49.774622][ T3606] ? do_raw_spin_lock+0x120/0x2a0 [ 49.779639][ T3606] ? rwlock_bug.part.0+0x90/0x90 [ 49.784564][ T3606] ? _raw_spin_lock_irq+0x41/0x50 [ 49.789582][ T3606] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 49.795818][ T3606] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 49.802045][ T3606] ? __fget_light+0x20f/0x270 [ 49.806712][ T3606] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 49.812947][ T3606] __x64_sys_sendmsg+0x132/0x220 [ 49.817962][ T3606] ? __sys_sendmsg+0x1b0/0x1b0 [ 49.822715][ T3606] ? _raw_spin_unlock_irq+0x2a/0x40 [ 49.827899][ T3606] ? ptrace_notify+0xfa/0x140 [ 49.832566][ T3606] do_syscall_64+0x35/0xb0 [ 49.836978][ T3606] entry_SYSCALL_64_after_hwframe+0x46/0xb0 [ 49.842862][ T3606] RIP: 0033:0x7fae96be56c9 [ 49.847278][ T3606] 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 [ 49.867571][ T3606] RSP: 002b:00007ffdca96b908 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 49.876055][ T3606] RAX: ffffffffffffffda RBX: 00007ffdca96b930 RCX: 00007fae96be56c9 [ 49.884009][ T3606] RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000003 [ 49.891985][ T3606] RBP: 0000000000000003 R08: bb1414acca96b937 R09: bb1414acca96b937 [ 49.899942][ T3606] R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000000000 [ 49.907896][ T3606] R13: 00007ffdca96b920 R14: 00007ffdca96b918 R15: 00007ffdca96b914 [ 49.915854][ T3606] [ 49.918860][ T3606] Modules linked in: [ 49.922798][ T3606] ---[ end trace 0000000000000000 ]--- [ 49.922808][ T3606] RIP: 0010:skb_mac_gso_segment+0x48f/0x530 [ 49.922841][ T3606] Code: 00 48 c7 c7 00 21 d4 8a c6 05 16 3c 48 06 01 e8 90 be d0 01 e9 2f fd ff ff 49 c7 c4 ea ff ff ff e9 f1 fe ff ff e8 51 d9 1b fa <0f> 0b 48 89 df e8 27 1f 68 fa e9 7f fd ff ff e8 3d 1f 68 fa e9 48 [ 49.922885][ T3606] RSP: 0018:ffffc90002fdf4b8 EFLAGS: 00010293 [ 49.922904][ T3606] RAX: 0000000000000000 RBX: 0000000000000012 RCX: 0000000000000000 [ 49.922919][ T3606] RDX: ffff888012b48000 RSI: ffffffff875ddb0f RDI: 0000000000000003 [ 49.922935][ T3606] RBP: 0000000000005dbc R08: 0000000000000fe0 R09: 0000000000005dbc [ 49.922951][ T3606] R10: ffffffff875dd7ac R11: 0000000000000000 R12: 0000000000000fe0 [ 49.922966][ T3606] R13: ffff88801c97fdc0 R14: 1ffff920005fbe9b R15: 0000000000000012 [ 49.922980][ T3606] FS: 0000555556074300(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 49.923000][ T3606] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 49.923013][ T3606] CR2: 00000000200015c0 CR3: 00000000714d8000 CR4: 00000000003506f0 [ 49.923025][ T3606] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 49.923036][ T3606] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 49.923050][ T3606] Kernel panic - not syncing: Fatal exception in interrupt [ 50.046776][ T3606] Kernel Offset: disabled [ 50.051096][ T3606] Rebooting in 86400 seconds..