./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1484175566 <...> Warning: Permanently added '10.128.1.177' (ED25519) to the list of known hosts. execve("./syz-executor1484175566", ["./syz-executor1484175566"], 0x7ffdb122ed30 /* 10 vars */) = 0 brk(NULL) = 0x55556ddfd000 brk(0x55556ddfdd00) = 0x55556ddfdd00 arch_prctl(ARCH_SET_FS, 0x55556ddfd380) = 0 set_tid_address(0x55556ddfd650) = 5050 set_robust_list(0x55556ddfd660, 24) = 0 rseq(0x55556ddfdca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1484175566", 4096) = 28 getrandom("\x6c\xae\x86\x12\x55\x8f\xa2\xd7", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556ddfdd00 brk(0x55556de1ed00) = 0x55556de1ed00 brk(0x55556de1f000) = 0x55556de1f000 mprotect(0x7f5e9bfb6000, 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 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556ddfd650) = 5051 ./strace-static-x86_64: Process 5051 attached [pid 5051] set_robust_list(0x55556ddfd660, 24) = 0 [pid 5051] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5051] setpgid(0, 0) = 0 [pid 5051] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5051] write(3, "1000", 4) = 4 [pid 5051] close(3) = 0 executing program [pid 5051] write(1, "executing program\n", 18) = 18 [pid 5051] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 3 [ 162.626140][ T5051] ===================================================== [ 162.633754][ T5051] BUG: KMSAN: uninit-value in tcf_ct_flow_table_get+0x611/0x2260 [ 162.641608][ T5051] tcf_ct_flow_table_get+0x611/0x2260 [ 162.647255][ T5051] tcf_ct_init+0xa67/0x2890 [ 162.651906][ T5051] tcf_action_init_1+0x6cc/0xb30 [ 162.657069][ T5051] tcf_action_init+0x458/0xf00 [ 162.661987][ T5051] tc_ctl_action+0x4be/0x19d0 [ 162.666864][ T5051] rtnetlink_rcv_msg+0x12fc/0x1410 [ 162.672127][ T5051] netlink_rcv_skb+0x375/0x650 [ 162.677115][ T5051] rtnetlink_rcv+0x34/0x40 [ 162.681659][ T5051] netlink_unicast+0xf52/0x1260 [ 162.686811][ T5051] netlink_sendmsg+0x10da/0x11e0 [ 162.691888][ T5051] __sock_sendmsg+0x30f/0x380 [ 162.696759][ T5051] ____sys_sendmsg+0x877/0xb60 [ 162.701681][ T5051] ___sys_sendmsg+0x28d/0x3c0 [ 162.706587][ T5051] __x64_sys_sendmsg+0x307/0x4a0 [ 162.711693][ T5051] x64_sys_call+0x2dd6/0x3c10 [ 162.716650][ T5051] do_syscall_64+0xcd/0x1e0 [ 162.721335][ T5051] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 162.727533][ T5051] [ 162.729933][ T5051] Local variable key created at: [ 162.735015][ T5051] tcf_ct_flow_table_get+0x4a/0x2260 [ 162.740452][ T5051] tcf_ct_init+0xa67/0x2890 [ 162.745345][ T5051] [ 162.747760][ T5051] CPU: 1 PID: 5051 Comm: syz-executor148 Not tainted 6.10.0-syzkaller-11185-g2c9b3512402e #0 [ 162.758115][ T5051] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 [ 162.768392][ T5051] ===================================================== [ 162.775616][ T5051] Disabling lock debugging due to kernel taint [ 162.781855][ T5051] Kernel panic - not syncing: kmsan.panic set ... [ 162.788336][ T5051] CPU: 1 PID: 5051 Comm: syz-executor148 Tainted: G B 6.10.0-syzkaller-11185-g2c9b3512402e #0 [ 162.800154][ T5051] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 [ 162.810288][ T5051] Call Trace: [ 162.813649][ T5051] [ 162.816664][ T5051] dump_stack_lvl+0x216/0x2d0 [ 162.821455][ T5051] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 162.827399][ T5051] dump_stack+0x1e/0x30 [ 162.831661][ T5051] panic+0x4e2/0xcd0 [ 162.835685][ T5051] ? kmsan_get_metadata+0xf1/0x1d0 [ 162.840999][ T5051] kmsan_report+0x2d5/0x2e0 [ 162.845624][ T5051] ? pcpu_alloc_area+0x114e/0x12c0 [ 162.850834][ T5051] ? __msan_warning+0x95/0x120 [ 162.855708][ T5051] ? tcf_ct_flow_table_get+0x611/0x2260 [ 162.861349][ T5051] ? tcf_ct_init+0xa67/0x2890 [ 162.866109][ T5051] ? tcf_action_init_1+0x6cc/0xb30 [ 162.871315][ T5051] ? tcf_action_init+0x458/0xf00 [ 162.876347][ T5051] ? tc_ctl_action+0x4be/0x19d0 [ 162.881304][ T5051] ? rtnetlink_rcv_msg+0x12fc/0x1410 [ 162.886684][ T5051] ? netlink_rcv_skb+0x375/0x650 [ 162.891761][ T5051] ? rtnetlink_rcv+0x34/0x40 [ 162.896482][ T5051] ? netlink_unicast+0xf52/0x1260 [ 162.901613][ T5051] ? netlink_sendmsg+0x10da/0x11e0 [ 162.906807][ T5051] ? __sock_sendmsg+0x30f/0x380 [ 162.911755][ T5051] ? ____sys_sendmsg+0x877/0xb60 [ 162.916773][ T5051] ? ___sys_sendmsg+0x28d/0x3c0 [ 162.921705][ T5051] ? __x64_sys_sendmsg+0x307/0x4a0 [ 162.926901][ T5051] ? x64_sys_call+0x2dd6/0x3c10 [ 162.931862][ T5051] ? do_syscall_64+0xcd/0x1e0 [ 162.936665][ T5051] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 162.942939][ T5051] ? kmsan_get_metadata+0x146/0x1d0 [ 162.948290][ T5051] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 162.954818][ T5051] ? kmsan_get_metadata+0x146/0x1d0 [ 162.960138][ T5051] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 162.966072][ T5051] ? _raw_spin_unlock_irqrestore+0x3f/0x60 [ 162.971981][ T5051] ? kmsan_get_metadata+0x146/0x1d0 [ 162.977302][ T5051] ? kmsan_get_metadata+0x146/0x1d0 [ 162.982624][ T5051] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 162.988615][ T5051] ? kmsan_get_metadata+0x146/0x1d0 [ 162.993933][ T5051] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 162.999865][ T5051] __msan_warning+0x95/0x120 [ 163.004585][ T5051] tcf_ct_flow_table_get+0x611/0x2260 [ 163.010115][ T5051] ? nf_ct_tmpl_alloc+0xbd/0x2d0 [ 163.015191][ T5051] ? kmsan_get_metadata+0x146/0x1d0 [ 163.020669][ T5051] tcf_ct_init+0xa67/0x2890 [ 163.025294][ T5051] tcf_action_init_1+0x6cc/0xb30 [ 163.030332][ T5051] ? __pfx_tcf_ct_init+0x10/0x10 [ 163.035389][ T5051] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 163.041332][ T5051] tcf_action_init+0x458/0xf00 [ 163.046261][ T5051] tc_ctl_action+0x4be/0x19d0 [ 163.051059][ T5051] ? kmsan_get_metadata+0x146/0x1d0 [ 163.056434][ T5051] ? __pfx_tc_ctl_action+0x10/0x10 [ 163.061649][ T5051] ? __pfx_tc_ctl_action+0x10/0x10 [ 163.066857][ T5051] rtnetlink_rcv_msg+0x12fc/0x1410 [ 163.072084][ T5051] ? kmsan_get_metadata+0x146/0x1d0 [ 163.077487][ T5051] netlink_rcv_skb+0x375/0x650 [ 163.082413][ T5051] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 163.088029][ T5051] ? __pfx_rtnetlink_rcv+0x10/0x10 [ 163.093227][ T5051] rtnetlink_rcv+0x34/0x40 [ 163.097736][ T5051] netlink_unicast+0xf52/0x1260 [ 163.102794][ T5051] netlink_sendmsg+0x10da/0x11e0 [ 163.107864][ T5051] ? __pfx_netlink_sendmsg+0x10/0x10 [ 163.113413][ T5051] ? __pfx_netlink_sendmsg+0x10/0x10 [ 163.118786][ T5051] __sock_sendmsg+0x30f/0x380 [ 163.123567][ T5051] ____sys_sendmsg+0x877/0xb60 [ 163.128469][ T5051] ___sys_sendmsg+0x28d/0x3c0 [ 163.133278][ T5051] ? kmsan_get_metadata+0x146/0x1d0 [ 163.138632][ T5051] ? filter_irq_stacks+0x60/0x1a0 [ 163.143848][ T5051] ? kmsan_get_metadata+0x146/0x1d0 [ 163.149260][ T5051] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 163.155197][ T5051] ? kmsan_get_metadata+0x146/0x1d0 [ 163.160516][ T5051] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 163.166456][ T5051] __x64_sys_sendmsg+0x307/0x4a0 [ 163.171505][ T5051] ? uprobe_notify_resume+0x52b0/0x5330 [ 163.177154][ T5051] ? syscall_trace_enter+0x279/0x600 [ 163.182555][ T5051] x64_sys_call+0x2dd6/0x3c10 [ 163.187352][ T5051] do_syscall_64+0xcd/0x1e0 [ 163.191968][ T5051] ? clear_bhb_loop+0x25/0x80 [ 163.196740][ T5051] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 163.202784][ T5051] RIP: 0033:0x7f5e9bf42c39 [ 163.207342][ T5051] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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 b8 ff ff ff f7 d8 64 89 01 48 [ 163.227076][ T5051] RSP: 002b:00007ffca23416d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 163.235588][ T5051] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f5e9bf42c39 [ 163.243640][ T5051] RDX: 0000000000000000 RSI: 0000000020000300 RDI: 0000000000000003 [ 163.251706][ T5051] RBP: 00007f5e9bfb65f0 R08: 0000000000000000 R09: 0000000000000006 [ 163.259799][ T5051] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 163.267844][ T5051] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 163.275903][ T5051] [ 163.279216][ T5051] Kernel Offset: disabled [ 163.283594][ T5051] Rebooting in 86400 seconds..