./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3746516673 <...> Warning: Permanently added '10.128.0.239' (ED25519) to the list of known hosts. execve("./syz-executor3746516673", ["./syz-executor3746516673"], 0x7fffd5e90190 /* 10 vars */) = 0 brk(NULL) = 0x55556c57e000 brk(0x55556c57ed00) = 0x55556c57ed00 arch_prctl(ARCH_SET_FS, 0x55556c57e380) = 0 set_tid_address(0x55556c57e650) = 5047 set_robust_list(0x55556c57e660, 24) = 0 rseq(0x55556c57eca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3746516673", 4096) = 28 getrandom("\xdd\x5c\xa1\xa4\x47\xcc\x46\xe5", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556c57ed00 brk(0x55556c59fd00) = 0x55556c59fd00 brk(0x55556c5a0000) = 0x55556c5a0000 mprotect(0x7f9d39e5c000, 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=0x55556c57e650) = 5048 ./strace-static-x86_64: Process 5048 attached [pid 5048] set_robust_list(0x55556c57e660, 24) = 0 [pid 5048] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5048] setpgid(0, 0) = 0 [pid 5048] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 executing program [pid 5048] write(3, "1000", 4) = 4 [pid 5048] close(3) = 0 [pid 5048] write(1, "executing program\n", 18) = 18 [pid 5048] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 3 [ 163.816781][ T5048] ===================================================== [ 163.824182][ T5048] BUG: KMSAN: uninit-value in tcf_ct_flow_table_get+0x611/0x2260 [ 163.832852][ T5048] tcf_ct_flow_table_get+0x611/0x2260 [ 163.838387][ T5048] tcf_ct_init+0xa67/0x2890 [ 163.843099][ T5048] tcf_action_init_1+0x6cc/0xb30 [ 163.848195][ T5048] tcf_action_init+0x458/0xf00 [ 163.853196][ T5048] tc_ctl_action+0x4be/0x19d0 [ 163.858023][ T5048] rtnetlink_rcv_msg+0x12fc/0x1410 [ 163.863355][ T5048] netlink_rcv_skb+0x375/0x650 [ 163.868328][ T5048] rtnetlink_rcv+0x34/0x40 [ 163.872967][ T5048] netlink_unicast+0xf52/0x1260 [ 163.877988][ T5048] netlink_sendmsg+0x10da/0x11e0 [ 163.883181][ T5048] __sock_sendmsg+0x30f/0x380 [ 163.888021][ T5048] ____sys_sendmsg+0x877/0xb60 [ 163.893001][ T5048] ___sys_sendmsg+0x28d/0x3c0 [ 163.897806][ T5048] __x64_sys_sendmsg+0x307/0x4a0 [ 163.902959][ T5048] x64_sys_call+0x2dd6/0x3c10 [ 163.907801][ T5048] do_syscall_64+0xcd/0x1e0 [ 163.912600][ T5048] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 163.918698][ T5048] [ 163.921186][ T5048] Local variable key created at: [ 163.926197][ T5048] tcf_ct_flow_table_get+0x4a/0x2260 [ 163.931703][ T5048] tcf_ct_init+0xa67/0x2890 [ 163.936353][ T5048] [ 163.938751][ T5048] CPU: 0 PID: 5048 Comm: syz-executor374 Not tainted 6.10.0-syzkaller-11185-g2c9b3512402e #0 [ 163.949176][ T5048] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 [ 163.959429][ T5048] ===================================================== [ 163.966554][ T5048] Disabling lock debugging due to kernel taint [ 163.972843][ T5048] Kernel panic - not syncing: kmsan.panic set ... [ 163.979315][ T5048] CPU: 0 PID: 5048 Comm: syz-executor374 Tainted: G B 6.10.0-syzkaller-11185-g2c9b3512402e #0 [ 163.991037][ T5048] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 [ 164.001176][ T5048] Call Trace: [ 164.004515][ T5048] [ 164.007505][ T5048] dump_stack_lvl+0x216/0x2d0 [ 164.012299][ T5048] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 164.018238][ T5048] dump_stack+0x1e/0x30 [ 164.022497][ T5048] panic+0x4e2/0xcd0 [ 164.026522][ T5048] ? kmsan_get_metadata+0xf1/0x1d0 [ 164.031770][ T5048] kmsan_report+0x2d5/0x2e0 [ 164.036427][ T5048] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 164.042426][ T5048] ? __msan_warning+0x95/0x120 [ 164.047296][ T5048] ? tcf_ct_flow_table_get+0x611/0x2260 [ 164.052937][ T5048] ? tcf_ct_init+0xa67/0x2890 [ 164.057875][ T5048] ? tcf_action_init_1+0x6cc/0xb30 [ 164.063091][ T5048] ? tcf_action_init+0x458/0xf00 [ 164.068124][ T5048] ? tc_ctl_action+0x4be/0x19d0 [ 164.073071][ T5048] ? rtnetlink_rcv_msg+0x12fc/0x1410 [ 164.078444][ T5048] ? netlink_rcv_skb+0x375/0x650 [ 164.083499][ T5048] ? rtnetlink_rcv+0x34/0x40 [ 164.088255][ T5048] ? netlink_unicast+0xf52/0x1260 [ 164.093418][ T5048] ? netlink_sendmsg+0x10da/0x11e0 [ 164.098668][ T5048] ? __sock_sendmsg+0x30f/0x380 [ 164.103637][ T5048] ? ____sys_sendmsg+0x877/0xb60 [ 164.108709][ T5048] ? ___sys_sendmsg+0x28d/0x3c0 [ 164.113638][ T5048] ? __x64_sys_sendmsg+0x307/0x4a0 [ 164.118832][ T5048] ? x64_sys_call+0x2dd6/0x3c10 [ 164.123798][ T5048] ? do_syscall_64+0xcd/0x1e0 [ 164.128588][ T5048] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 164.134787][ T5048] ? kmsan_get_metadata+0x146/0x1d0 [ 164.140123][ T5048] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 164.146608][ T5048] ? kmsan_get_metadata+0x146/0x1d0 [ 164.151928][ T5048] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 164.157865][ T5048] ? _raw_spin_unlock_irqrestore+0x3f/0x60 [ 164.163771][ T5048] ? kmsan_get_metadata+0x146/0x1d0 [ 164.169205][ T5048] ? kmsan_get_metadata+0x146/0x1d0 [ 164.174524][ T5048] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 164.180458][ T5048] ? kmsan_get_metadata+0x146/0x1d0 [ 164.185776][ T5048] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 164.191721][ T5048] __msan_warning+0x95/0x120 [ 164.196423][ T5048] tcf_ct_flow_table_get+0x611/0x2260 [ 164.201903][ T5048] ? nf_ct_tmpl_alloc+0xbd/0x2d0 [ 164.206950][ T5048] ? kmsan_get_metadata+0x146/0x1d0 [ 164.212273][ T5048] tcf_ct_init+0xa67/0x2890 [ 164.216935][ T5048] tcf_action_init_1+0x6cc/0xb30 [ 164.221971][ T5048] ? __pfx_tcf_ct_init+0x10/0x10 [ 164.227036][ T5048] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 164.233130][ T5048] tcf_action_init+0x458/0xf00 [ 164.238079][ T5048] tc_ctl_action+0x4be/0x19d0 [ 164.242922][ T5048] ? kmsan_get_metadata+0x146/0x1d0 [ 164.248399][ T5048] ? __pfx_tc_ctl_action+0x10/0x10 [ 164.253624][ T5048] ? __pfx_tc_ctl_action+0x10/0x10 [ 164.258847][ T5048] rtnetlink_rcv_msg+0x12fc/0x1410 [ 164.264059][ T5048] ? kmsan_get_metadata+0x146/0x1d0 [ 164.269399][ T5048] netlink_rcv_skb+0x375/0x650 [ 164.274299][ T5048] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 164.279861][ T5048] ? __pfx_rtnetlink_rcv+0x10/0x10 [ 164.285054][ T5048] rtnetlink_rcv+0x34/0x40 [ 164.289551][ T5048] netlink_unicast+0xf52/0x1260 [ 164.294564][ T5048] netlink_sendmsg+0x10da/0x11e0 [ 164.299658][ T5048] ? __pfx_netlink_sendmsg+0x10/0x10 [ 164.305074][ T5048] ? __pfx_netlink_sendmsg+0x10/0x10 [ 164.310801][ T5048] __sock_sendmsg+0x30f/0x380 [ 164.315584][ T5048] ____sys_sendmsg+0x877/0xb60 [ 164.320448][ T5048] ___sys_sendmsg+0x28d/0x3c0 [ 164.325205][ T5048] ? kmsan_get_metadata+0x146/0x1d0 [ 164.330623][ T5048] ? filter_irq_stacks+0x60/0x1a0 [ 164.335776][ T5048] ? kmsan_get_metadata+0x146/0x1d0 [ 164.341880][ T5048] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 164.347817][ T5048] ? kmsan_get_metadata+0x146/0x1d0 [ 164.353142][ T5048] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 164.359109][ T5048] __x64_sys_sendmsg+0x307/0x4a0 [ 164.364137][ T5048] ? uprobe_notify_resume+0x52b0/0x5330 [ 164.369785][ T5048] ? syscall_trace_enter+0x279/0x600 [ 164.375186][ T5048] x64_sys_call+0x2dd6/0x3c10 [ 164.379974][ T5048] do_syscall_64+0xcd/0x1e0 [ 164.384613][ T5048] ? clear_bhb_loop+0x25/0x80 [ 164.389441][ T5048] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 164.395488][ T5048] RIP: 0033:0x7f9d39de9bf9 [ 164.400030][ T5048] 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 [ 164.419743][ T5048] RSP: 002b:00007ffd5f2e8878 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 164.428257][ T5048] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f9d39de9bf9 [ 164.436308][ T5048] RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000000003 [ 164.444351][ T5048] RBP: 00007f9d39e5c5f0 R08: 0000000000000000 R09: 0000000000000006 [ 164.452421][ T5048] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 164.460502][ T5048] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 164.468560][ T5048] [ 164.471761][ T5048] Kernel Offset: disabled [ 164.476141][ T5048] Rebooting in 86400 seconds..