./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1373997562 <...> Warning: Permanently added '10.128.1.67' (ED25519) to the list of known hosts. execve("./syz-executor1373997562", ["./syz-executor1373997562"], 0x7ffd6552c870 /* 10 vars */) = 0 brk(NULL) = 0x5555853d0000 brk(0x5555853d0d00) = 0x5555853d0d00 arch_prctl(ARCH_SET_FS, 0x5555853d0380) = 0 set_tid_address(0x5555853d0650) = 5833 set_robust_list(0x5555853d0660, 24) = 0 rseq(0x5555853d0ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1373997562", 4096) = 28 getrandom("\x04\x3a\x54\xf7\xe8\x37\x69\xfd", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555853d0d00 brk(0x5555853f1d00) = 0x5555853f1d00 brk(0x5555853f2000) = 0x5555853f2000 mprotect(0x7fa051628000, 16384, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000 chmod("/dev/raw-gadget", 0666) = 0 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5834 attached [pid 5834] set_robust_list(0x5555853d0660, 24 [pid 5833] <... clone resumed>, child_tidptr=0x5555853d0650) = 5834 [pid 5834] <... set_robust_list resumed>) = 0 [pid 5834] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5834] getppid() = 0 [pid 5834] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5834] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5834] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5834] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5834] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5834] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5834] unshare(CLONE_NEWNS) = 0 [pid 5834] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5834] unshare(CLONE_NEWIPC) = 0 [pid 5834] unshare(CLONE_NEWCGROUP) = 0 [pid 5834] unshare(CLONE_NEWUTS) = 0 [pid 5834] unshare(CLONE_SYSVSEM) = 0 [pid 5834] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5834] write(3, "16777216", 8) = 8 [pid 5834] close(3) = 0 [pid 5834] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5834] write(3, "536870912", 9) = 9 [pid 5834] close(3) = 0 [pid 5834] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5834] write(3, "1024", 4) = 4 [pid 5834] close(3) = 0 [pid 5834] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5834] write(3, "8192", 4) = 4 [pid 5834] close(3) = 0 [pid 5834] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5834] write(3, "1024", 4) = 4 [pid 5834] close(3) = 0 [pid 5834] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5834] write(3, "1024", 4) = 4 [pid 5834] close(3) = 0 [pid 5834] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5834] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5834] close(3) = 0 [pid 5834] getpid() = 1 [pid 5834] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [ 88.135784][ T5834] dump_stack_lvl+0x189/0x250 [ 88.135803][ T5834] ? __pfx_dump_stack_lvl+0x10/0x10 [ 88.135817][ T5834] ? __irq_work_queue_local+0x13a/0x3e0 [ 88.135832][ T5834] ? print_lock_name+0xde/0x100 [ 88.135851][ T5834] __might_resched+0x495/0x610 [ 88.135863][ T5834] ? __wake_up_klogd+0x1c/0x110 [ 88.135874][ T5834] ? __pfx___might_resched+0x10/0x10 [ 88.135882][ T5834] ? do_raw_spin_lock+0x121/0x290 [ 88.135902][ T5834] __mutex_lock+0x106/0xe80 [ 88.135917][ T5834] ? __pfx__printk+0x10/0x10 [ 88.135928][ T5834] ? team_change_rx_flags+0x38/0x220 [ 88.135945][ T5834] ? __netdev_printk+0x1bf/0x4d0 [ 88.135955][ T5834] ? __pfx___mutex_lock+0x10/0x10 [ 88.135967][ T5834] ? netdev_info+0x10a/0x160 [ 88.135981][ T5834] ? __pfx_netdev_info+0x10/0x10 [ 88.135996][ T5834] team_change_rx_flags+0x38/0x220 [ 88.136012][ T5834] ? __pfx_team_change_rx_flags+0x10/0x10 [ 88.136025][ T5834] __dev_set_promiscuity+0x3f8/0x590 [ 88.136042][ T5834] netif_set_promiscuity+0x50/0xe0 [ 88.136055][ T5834] dev_set_promiscuity+0x126/0x260 [ 88.136070][ T5834] packet_notifier+0x292/0xa60 [ 88.136083][ T5834] ? packet_notifier+0x78/0xa60 [ 88.136095][ T5834] notifier_call_chain+0x1b3/0x3e0 [ 88.136109][ T5834] unregister_netdevice_many_notify+0x15d8/0x2330 [ 88.136126][ T5834] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 88.136142][ T5834] ? rtnl_dellink+0x331/0x710 [ 88.136156][ T5834] ? unregister_netdevice_queue+0x1b3/0x380 [ 88.136174][ T5834] ? __nla_parse+0x40/0x60 [ 88.136188][ T5834] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 88.136201][ T5834] rtnl_dellink+0x488/0x710 [ 88.136215][ T5834] ? __pfx_rtnl_dellink+0x10/0x10 [ 88.136275][ T5834] ? __pfx_rtnl_dellink+0x10/0x10 [ 88.136285][ T5834] rtnetlink_rcv_msg+0x7cf/0xb70 [ 88.136297][ T5834] ? rtnetlink_rcv_msg+0x1ab/0xb70 [ 88.136307][ T5834] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 88.136320][ T5834] ? ref_tracker_free+0x63a/0x7d0 [ 88.136329][ T5834] ? __copy_skb_header+0xa7/0x550 [ 88.136347][ T5834] netlink_rcv_skb+0x219/0x490 [ 88.136358][ T5834] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 88.136370][ T5834] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 88.136391][ T5834] ? netlink_deliver_tap+0x2e/0x1b0 [ 88.136402][ T5834] ? netlink_deliver_tap+0x2e/0x1b0 [ 88.136415][ T5834] netlink_unicast+0x75b/0x8d0 [ 88.136431][ T5834] netlink_sendmsg+0x805/0xb30 [ 88.136453][ T5834] ? __pfx_netlink_sendmsg+0x10/0x10 [ 88.136466][ T5834] ? aa_sock_msg_perm+0x94/0x160 [ 88.136478][ T5834] ? bpf_lsm_socket_sendmsg+0x9/0x20 [ 88.136489][ T5834] ? __pfx_netlink_sendmsg+0x10/0x10 [ 88.136500][ T5834] __sock_sendmsg+0x219/0x270 [ 88.136512][ T5834] ____sys_sendmsg+0x505/0x830 [ 88.136528][ T5834] ? __pfx_____sys_sendmsg+0x10/0x10 [ 88.136546][ T5834] ? import_iovec+0x74/0xa0 [ 88.136561][ T5834] ___sys_sendmsg+0x21f/0x2a0 [ 88.136575][ T5834] ? __pfx____sys_sendmsg+0x10/0x10 [ 88.136590][ T5834] ? do_raw_spin_lock+0x121/0x290 [ 88.136609][ T5834] ? _raw_spin_lock_irq+0xae/0xf0 [ 88.136634][ T5834] __x64_sys_sendmsg+0x19b/0x260 [ 88.136649][ T5834] ? __pfx___x64_sys_sendmsg+0x10/0x10 [ 88.136674][ T5834] do_syscall_64+0xf6/0x210 [ 88.136687][ T5834] ? clear_bhb_loop+0x60/0xb0 [ 88.136699][ T5834] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 88.136708][ T5834] RIP: 0033:0x7fa0515b66d9 [ 88.136720][ T5834] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 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 [ 88.136728][ T5834] RSP: 002b:00007fffe746d308 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 88.136738][ T5834] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0515b66d9 [ 88.136745][ T5834] RDX: 0000000000000000 RSI: 00002000000001c0 RDI: 0000000000000004 [ 88.136750][ T5834] RBP: 00007fa0515fd48d R08: 0000555500000000 R09: 0000555500000000 [ 88.136756][ T5834] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa0515fd3f5 [ 88.136762][ T5834] R13: 0000000000000001 R14: 00007fffe746d350 R15: 0000000000000003 [ 88.136777][ T5834] [ 88.136784][ T5834] [ 88.551302][ T5834] ============================= [ 88.556137][ T5834] [ BUG: Invalid wait context ] [ 88.560969][ T5834] 6.15.0-rc6-syzkaller-00168-g239af1970bcb #0 Tainted: G W [ 88.569621][ T5834] ----------------------------- [ 88.574449][ T5834] syz-executor137/5834 is trying to lock: [ 88.580147][ T5834] ffff8880790dce00 (team->team_lock_key){+.+.}-{4:4}, at: team_change_rx_flags+0x38/0x220 [ 88.590063][ T5834] other info that might help us debug this: [ 88.595937][ T5834] context-{5:5} [ 88.599380][ T5834] 2 locks held by syz-executor137/5834: [ 88.604905][ T5834] #0: ffffffff8f2f7408 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_dellink+0x331/0x710 [ 88.613863][ T5834] #1: ffffffff8df3dce0 (rcu_read_lock){....}-{1:3}, at: packet_notifier+0x78/0xa60 [ 88.623253][ T5834] stack backtrace: [ 88.626962][ T5834] CPU: 0 UID: 0 PID: 5834 Comm: syz-executor137 Tainted: G W 6.15.0-rc6-syzkaller-00168-g239af1970bcb #0 PREEMPT(full) [ 88.626982][ T5834] Tainted: [W]=WARN [ 88.626986][ T5834] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 88.626995][ T5834] Call Trace: [ 88.627001][ T5834] [ 88.627007][ T5834] dump_stack_lvl+0x189/0x250 [ 88.627030][ T5834] ? __pfx_dump_stack_lvl+0x10/0x10 [ 88.627048][ T5834] ? __pfx__printk+0x10/0x10 [ 88.627060][ T5834] ? __irq_work_queue_local+0x13a/0x3e0 [ 88.627079][ T5834] ? print_lock_name+0xde/0x100 [ 88.627099][ T5834] __lock_acquire+0xbcf/0xd20 [ 88.627121][ T5834] ? team_change_rx_flags+0x38/0x220 [ 88.627140][ T5834] lock_acquire+0x120/0x360 [ 88.627157][ T5834] ? team_change_rx_flags+0x38/0x220 [ 88.627180][ T5834] __mutex_lock+0x182/0xe80 [ 88.627197][ T5834] ? team_change_rx_flags+0x38/0x220 [ 88.627216][ T5834] ? __pfx__printk+0x10/0x10 [ 88.627229][ T5834] ? team_change_rx_flags+0x38/0x220 [ 88.627247][ T5834] ? __netdev_printk+0x1bf/0x4d0 [ 88.627260][ T5834] ? __pfx___mutex_lock+0x10/0x10 [ 88.627277][ T5834] ? netdev_info+0x10a/0x160 [ 88.627292][ T5834] ? __pfx_netdev_info+0x10/0x10 [ 88.627308][ T5834] team_change_rx_flags+0x38/0x220 [ 88.627328][ T5834] ? __pfx_team_change_rx_flags+0x10/0x10 [ 88.627346][ T5834] __dev_set_promiscuity+0x3f8/0x590 [ 88.627370][ T5834] netif_set_promiscuity+0x50/0xe0 [ 88.627387][ T5834] dev_set_promiscuity+0x126/0x260 [ 88.627405][ T5834] packet_notifier+0x292/0xa60 [ 88.627421][ T5834] ? packet_notifier+0x78/0xa60 [ 88.627435][ T5834] notifier_call_chain+0x1b3/0x3e0 [ 88.627451][ T5834] unregister_netdevice_many_notify+0x15d8/0x2330 [ 88.627469][ T5834] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 88.627490][ T5834] ? rtnl_dellink+0x331/0x710 [ 88.627506][ T5834] ? unregister_netdevice_queue+0x1b3/0x380 [ 88.627527][ T5834] ? __nla_parse+0x40/0x60 [ 88.627544][ T5834] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 88.627562][ T5834] rtnl_dellink+0x488/0x710 [ 88.627578][ T5834] ? __pfx_rtnl_dellink+0x10/0x10 [ 88.627619][ T5834] ? __pfx_rtnl_dellink+0x10/0x10 [ 88.627633][ T5834] rtnetlink_rcv_msg+0x7cf/0xb70 [ 88.627648][ T5834] ? rtnetlink_rcv_msg+0x1ab/0xb70 [ 88.627662][ T5834] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 88.627677][ T5834] ? ref_tracker_free+0x63a/0x7d0 [ 88.627691][ T5834] ? __copy_skb_header+0xa7/0x550 [ 88.627711][ T5834] netlink_rcv_skb+0x219/0x490 [ 88.627727][ T5834] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 88.627741][ T5834] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 88.627761][ T5834] ? netlink_deliver_tap+0x2e/0x1b0 [ 88.627775][ T5834] ? netlink_deliver_tap+0x2e/0x1b0 [ 88.627791][ T5834] netlink_unicast+0x75b/0x8d0 [ 88.627808][ T5834] netlink_sendmsg+0x805/0xb30 [ 88.627825][ T5834] ? __pfx_netlink_sendmsg+0x10/0x10 [ 88.627841][ T5834] ? aa_sock_msg_perm+0x94/0x160 [ 88.627856][ T5834] ? bpf_lsm_socket_sendmsg+0x9/0x20 [ 88.627872][ T5834] ? __pfx_netlink_sendmsg+0x10/0x10 [ 88.627887][ T5834] __sock_sendmsg+0x219/0x270 [ 88.627901][ T5834] ____sys_sendmsg+0x505/0x830 [ 88.627920][ T5834] ? __pfx_____sys_sendmsg+0x10/0x10 [ 88.627939][ T5834] ? import_iovec+0x74/0xa0 [ 88.627958][ T5834] ___sys_sendmsg+0x21f/0x2a0 [ 88.627976][ T5834] ? __pfx____sys_sendmsg+0x10/0x10 [ 88.627994][ T5834] ? do_raw_spin_lock+0x121/0x290 [ 88.628013][ T5834] ? _raw_spin_lock_irq+0xae/0xf0 [ 88.628034][ T5834] __x64_sys_sendmsg+0x19b/0x260 [ 88.628052][ T5834] ? __pfx___x64_sys_sendmsg+0x10/0x10 [ 88.628076][ T5834] do_syscall_64+0xf6/0x210 [ 88.628094][ T5834] ? clear_bhb_loop+0x60/0xb0 [ 88.628109][ T5834] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 88.628123][ T5834] RIP: 0033:0x7fa0515b66d9 [ 88.628136][ T5834] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 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 [ 88.628147][ T5834] RSP: 002b:00007fffe746d308 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 88.628161][ T5834] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0515b66d9 [ 88.628170][ T5834] RDX: 0000000000000000 RSI: 00002000000001c0 RDI: 0000000000000004 [ 88.628179][ T5834] RBP: 00007fa0515fd48d R08: 0000555500000000 R09: 0000555500000000 [ 88.628188][ T5834] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa0515fd3f5 [ 88.628197][ T5834] R13: 0000000000000001 R14: 00007fffe746d350 R15: 0000000000000003 [ 88.628210][ T5834] [ 89.058027][ T5834] team_slave_0: left promiscuous mode [ 89.063872][ T5834] team_slave_1: left promiscuous mode [ 89.072389][ T5834] team0 (unregistering): Port device team_slave_0 removed [pid 5834] sendmsg(4, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\x20\x00\x00\x00\x11\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", iov_len=32}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 32 [pid 5834] exit_group(1) = ? [pid 5834] +++ exited with 1 +++ [ 89.081279][ T5834] team0 (unregistering): Port device team_slave_1 removed --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5834, si_uid=0, si_status=1, si_utime=0, si_stime=125 /* 1.25 s */} --- exit_group(0) = ? +++ exited with 0 +++ [