./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2894383944 <...> forked to background, child pid 3055 no interfaces have a carrier [ 98.830361][ T3056] 8021q: adding VLAN 0 to HW filter on device bond0 [ 98.849933][ T3056] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller syzkaller login: [ 105.383949][ T126] cfg80211: failed to load regulatory.db Warning: Permanently added '10.128.0.208' (ECDSA) to the list of known hosts. execve("./syz-executor2894383944", ["./syz-executor2894383944"], 0x7ffcfb0c24d0 /* 10 vars */) = 0 brk(NULL) = 0x555556649000 brk(0x555556649c40) = 0x555556649c40 arch_prctl(ARCH_SET_FS, 0x555556649300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor2894383944", 4096) = 28 brk(0x55555666ac40) = 0x55555666ac40 brk(0x55555666b000) = 0x55555666b000 mprotect(0x7fa9fffd1000, 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=0x5555566495d0) = 3480 ./strace-static-x86_64: Process 3480 attached [pid 3480] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 3480] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3480] setsid() = 1 [pid 3480] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 3480] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 3480] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 3480] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 3480] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 3480] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 3480] unshare(CLONE_NEWNS) = 0 [pid 3480] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 3480] unshare(CLONE_NEWIPC) = 0 [pid 3480] unshare(CLONE_NEWCGROUP) = 0 [pid 3480] unshare(CLONE_NEWUTS) = 0 [pid 3480] unshare(CLONE_SYSVSEM) = 0 [pid 3480] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3480] write(3, "16777216", 8) = 8 [pid 3480] close(3) = 0 [pid 3480] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 3480] write(3, "536870912", 9) = 9 [pid 3480] close(3) = 0 [pid 3480] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3480] write(3, "1024", 4) = 4 [pid 3480] close(3) = 0 [pid 3480] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3480] write(3, "8192", 4) = 4 [pid 3480] close(3) = 0 [pid 3480] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3480] write(3, "1024", 4) = 4 [pid 3480] close(3) = 0 [pid 3480] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 3480] write(3, "1024", 4) = 4 [pid 3480] close(3) = 0 [pid 3480] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 3480] write(3, "1024 1048576 500 1024", 21) = 21 [pid 3480] close(3) = 0 [pid 3480] getpid() = 1 [pid 3480] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [ 148.122590][ C0] dump_stack_lvl+0x1c8/0x256 [ 148.127386][ C0] dump_stack+0x1a/0x23 [ 148.131665][ C0] panic+0x4d3/0xc64 [ 148.135704][ C0] ? add_taint+0x104/0x1a0 [ 148.140223][ C0] kmsan_report+0x2cc/0x2d0 [ 148.144856][ C0] ? __irq_exit_rcu+0x5a/0x110 [ 148.149756][ C0] ? asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 148.156046][ C0] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 148.162044][ C0] ? hrtimer_start_range_ns+0xaba/0xb50 [ 148.167743][ C0] ? j1939_tp_schedule_txtimer+0xbe/0x100 [ 148.173595][ C0] ? j1939_sk_sendmsg+0x1c2c/0x25d0 [ 148.178894][ C0] ? ____sys_sendmsg+0xa8e/0xe70 [ 148.183957][ C0] ? __msan_warning+0x92/0x110 [ 148.188864][ C0] ? can_send+0x269/0x1100 [ 148.193391][ C0] ? j1939_send_one+0x40f/0x4d0 [ 148.198376][ C0] ? j1939_xtp_do_tx_ctl+0x69f/0x9e0 [ 148.203799][ C0] ? j1939_tp_txtimer+0x35bb/0x4520 [ 148.209106][ C0] ? __run_hrtimer+0x298/0x910 [ 148.214021][ C0] ? hrtimer_run_softirq+0x4b0/0x870 [ 148.219398][ C0] ? __do_softirq+0x1c5/0x7b9 [ 148.224165][ C0] ? invoke_softirq+0x8f/0x100 [ 148.229066][ C0] ? __irq_exit_rcu+0x5a/0x110 [ 148.233925][ C0] ? irq_exit_rcu+0xe/0x10 [ 148.238484][ C0] ? sysvec_apic_timer_interrupt+0x9a/0xc0 [ 148.244451][ C0] ? asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 148.250720][ C0] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 148.256632][ C0] ? hrtimer_start_range_ns+0xaba/0xb50 [ 148.262274][ C0] ? j1939_tp_schedule_txtimer+0xbe/0x100 [ 148.268108][ C0] ? j1939_sk_sendmsg+0x1c2c/0x25d0 [ 148.273419][ C0] ? ____sys_sendmsg+0xa8e/0xe70 [ 148.278526][ C0] ? ___sys_sendmsg+0x2a1/0x3f0 [ 148.283498][ C0] ? __x64_sys_sendmsg+0x367/0x540 [ 148.288777][ C0] ? do_syscall_64+0x3d/0xb0 [ 148.293497][ C0] ? entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 148.299748][ C0] ? should_fail+0x3f/0x800 [ 148.304358][ C0] ? memcg_slab_post_alloc_hook+0x2d/0x980 [ 148.310334][ C0] ? kmsan_get_shadow_origin_ptr+0x49/0xa0 [ 148.316340][ C0] ? kmsan_get_shadow_origin_ptr+0x49/0xa0 [ 148.322343][ C0] ? __kmem_cache_alloc_node+0x71f/0xc90 [ 148.328180][ C0] ? j1939_xtp_do_tx_ctl+0xa3/0x9e0 [ 148.333540][ C0] ? kmsan_get_shadow_origin_ptr+0x49/0xa0 [ 148.339502][ C0] __msan_warning+0x92/0x110 [ 148.344237][ C0] can_send+0x269/0x1100 [ 148.348593][ C0] j1939_send_one+0x40f/0x4d0 [ 148.353389][ C0] j1939_xtp_do_tx_ctl+0x69f/0x9e0 [ 148.358665][ C0] j1939_tp_txtimer+0x35bb/0x4520 [ 148.363807][ C0] ? kmsan_get_shadow_origin_ptr+0x49/0xa0 [ 148.369801][ C0] ? rb_erase+0x209/0x2440 [ 148.374342][ C0] ? kmsan_get_shadow_origin_ptr+0x49/0xa0 [ 148.380260][ C0] ? j1939_tp_init+0x90/0x90 [ 148.384965][ C0] __run_hrtimer+0x298/0x910 [ 148.389726][ C0] hrtimer_run_softirq+0x4b0/0x870 [ 148.394947][ C0] ? local_bh_enable+0x30/0x30 [ 148.399828][ C0] __do_softirq+0x1c5/0x7b9 [ 148.404497][ C0] invoke_softirq+0x8f/0x100 [ 148.409170][ C0] __irq_exit_rcu+0x5a/0x110 [ 148.413860][ C0] irq_exit_rcu+0xe/0x10 [ 148.418250][ C0] sysvec_apic_timer_interrupt+0x9a/0xc0 [ 148.424031][ C0] [ 148.427021][ C0] [ 148.430008][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 148.436189][ C0] RIP: 0010:_raw_spin_unlock_irqrestore+0x2f/0x50 [ 148.442743][ C0] Code: 56 53 49 89 f6 48 89 fb e8 0e 8e 6e f4 48 89 df e8 c6 80 6e f4 c6 00 00 c6 03 00 41 f7 c6 00 02 00 00 74 01 fb bf 01 00 00 00 1c 74 b1 f3 65 8b 05 cd d1 4a 72 85 c0 74 05 5b 41 5e 5d c3 0f [ 148.462520][ C0] RSP: 0018:ffff888132c9f930 EFLAGS: 00000206 [ 148.468704][ C0] RAX: ffff88823fdcfb40 RBX: ffff88813fc93b40 RCX: 0000000000b3f1aa [ 148.476739][ C0] RDX: ffff88823fd22b40 RSI: 00000000063eedf0 RDI: 0000000000000001 [ 148.484768][ C0] RBP: ffff888132c9f940 R08: ffffffff81934fdb R09: ffff88813248b2b8 [ 148.492834][ C0] R10: ffff888132c9f8c8 R11: ffff88813288b238 R12: 0000000000000000 [ 148.500937][ C0] R13: 0000000000000000 R14: 0000000000000286 R15: 0000000000000001 [ 148.509058][ C0] ? clockevents_program_min_delta+0x23b/0x6a0 [ 148.515354][ C0] hrtimer_start_range_ns+0xaba/0xb50 [ 148.520845][ C0] j1939_tp_schedule_txtimer+0xbe/0x100 [ 148.526515][ C0] j1939_sk_sendmsg+0x1c2c/0x25d0 [ 148.531748][ C0] ? j1939_sk_getsockopt+0x520/0x520 [ 148.537196][ C0] ____sys_sendmsg+0xa8e/0xe70 [ 148.542124][ C0] ___sys_sendmsg+0x2a1/0x3f0 [ 148.546994][ C0] ? kmsan_get_shadow_origin_ptr+0x49/0xa0 [ 148.552911][ C0] ? kmsan_get_shadow_origin_ptr+0x49/0xa0 [ 148.558817][ C0] __x64_sys_sendmsg+0x367/0x540 [ 148.563919][ C0] do_syscall_64+0x3d/0xb0 [ 148.568470][ C0] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 148.574474][ C0] RIP: 0033:0x7fa9fff5dc49 [ 148.578943][ C0] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 00 00 90 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 [ 148.598674][ C0] RSP: 002b:00007ffea52d16e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 148.607222][ C0] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fa9fff5dc49 [ 148.615259][ C0] RDX: 0000000000000000 RSI: 0000000020000340 RDI: 0000000000000004 [ 148.623296][ C0] RBP: 0000000000000000 R08: 000000000000000d R09: 000000000000000d [ 148.631407][ C0] R10: 000000000000000d R11: 0000000000000246 R12: 00007ffea52d1700 [ 148.639484][ C0] R13: 00000000000f4240 R14: 0000000000000000 R15: 0000000000000000 [ 148.647601][ C0] [ 148.650856][ C0] Kernel Offset: disabled [ 148.655227][ C0] Rebooting in 86400 seconds..