./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1735262548 <...> Warning: Permanently added '10.128.1.114' (ECDSA) to the list of known hosts. execve("./syz-executor1735262548", ["./syz-executor1735262548"], 0x7ffebf438f40 /* 10 vars */) = 0 brk(NULL) = 0x5555555ca000 brk(0x5555555cac40) = 0x5555555cac40 arch_prctl(ARCH_SET_FS, 0x5555555ca300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor1735262548", 4096) = 28 brk(0x5555555ebc40) = 0x5555555ebc40 brk(0x5555555ec000) = 0x5555555ec000 mprotect(0x7f4f85aa2000, 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 3635 attached , child_tidptr=0x5555555ca5d0) = 3635 [pid 3635] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 3635] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3635] setsid() = 1 [pid 3635] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 3635] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 3635] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 3635] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 3635] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 3635] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 3635] unshare(CLONE_NEWNS) = 0 [pid 3635] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 3635] unshare(CLONE_NEWIPC) = 0 [pid 3635] unshare(CLONE_NEWCGROUP) = 0 [pid 3635] unshare(CLONE_NEWUTS) = 0 [pid 3635] unshare(CLONE_SYSVSEM) = 0 [pid 3635] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3635] write(3, "16777216", 8) = 8 [pid 3635] close(3) = 0 [pid 3635] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 3635] write(3, "536870912", 9) = 9 [pid 3635] close(3) = 0 [pid 3635] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3635] write(3, "1024", 4) = 4 [pid 3635] close(3) = 0 [pid 3635] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3635] write(3, "8192", 4) = 4 [pid 3635] close(3) = 0 [pid 3635] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3635] write(3, "1024", 4) = 4 [pid 3635] close(3) = 0 [pid 3635] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 3635] write(3, "1024", 4) = 4 [pid 3635] close(3) = 0 [pid 3635] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 3635] write(3, "1024 1048576 500 1024", 21) = 21 [pid 3635] close(3) = 0 [pid 3635] getpid() = 1 [pid 3635] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< SOFTIRQ-unsafe lock order detected [ 62.434566][ T3635] 6.1.0-rc4-syzkaller #0 Not tainted [ 62.439826][ T3635] ----------------------------------------------------- [ 62.446737][ T3635] syz-executor173/3635 [HC0[0]:SC0[4]:HE1:SE0] is trying to acquire: [ 62.454790][ T3635] ffff8880217e8fb8 (k-clock-AF_INET){+++.}-{2:2}, at: __mptcp_close+0x349/0x8d0 [ 62.463838][ T3635] [ 62.463838][ T3635] and this task is already holding: [ 62.471181][ T3635] ffff8880217e8cb0 (k-slock-AF_INET){+.-.}-{2:2}, at: __lock_sock_fast+0x40/0xe0 [ 62.480307][ T3635] which would create a new lock dependency: [ 62.486180][ T3635] (k-slock-AF_INET){+.-.}-{2:2} -> (k-clock-AF_INET){+++.}-{2:2} [ 62.493994][ T3635] [ 62.493994][ T3635] but this new dependency connects a SOFTIRQ-irq-safe lock: [ 62.503448][ T3635] (k-slock-AF_INET){+.-.}-{2:2} [ 62.503466][ T3635] [ 62.503466][ T3635] ... which became SOFTIRQ-irq-safe at: [ 62.516068][ T3635] lock_acquire+0x1e3/0x630 [ 62.520669][ T3635] _raw_spin_lock+0x2e/0x40 [ 62.525265][ T3635] dccp_v4_ctl_send_reset+0xb00/0x12f0 [ 62.530812][ T3635] dccp_v4_rcv+0x1283/0x18e0 [ 62.535510][ T3635] ip_protocol_deliver_rcu+0x9f/0x7c0 [ 62.540975][ T3635] ip_local_deliver_finish+0x2ec/0x4c0 [ 62.546525][ T3635] ip_local_deliver+0x1ae/0x200 [ 62.551475][ T3635] ip_rcv_finish+0x1cf/0x2f0 [ 62.556171][ T3635] ip_rcv+0xae/0xd0 [ 62.560090][ T3635] __netif_receive_skb_one_core+0x114/0x180 [ 62.566102][ T3635] __netif_receive_skb+0x1f/0x1c0 [ 62.571244][ T3635] process_backlog+0x3e4/0x810 [ 62.576207][ T3635] __napi_poll+0xb8/0x770 [ 62.580729][ T3635] net_rx_action+0xa00/0xde0 [ 62.585439][ T3635] __do_softirq+0x1fb/0xadc [ 62.590048][ T3635] do_softirq.part.0+0xde/0x130 [ 62.595100][ T3635] __local_bh_enable_ip+0x106/0x130 [ 62.600387][ T3635] ip_finish_output2+0x7dc/0x2180 [ 62.605510][ T3635] __ip_finish_output+0x396/0x650 [ 62.610906][ T3635] ip_finish_output+0x31/0x280 [ 62.615766][ T3635] ip_output+0x1a3/0x320 [ 62.620193][ T3635] __ip_queue_xmit+0x8e2/0x1bf0 [ 62.625138][ T3635] dccp_transmit_skb+0xcfe/0x1450 [ 62.630271][ T3635] dccp_connect+0x39b/0x720 [ 62.634877][ T3635] dccp_v4_connect+0x1098/0x2010 [ 62.639915][ T3635] __inet_stream_connect+0x69e/0xed0 [ 62.645296][ T3635] inet_stream_connect+0x57/0xa0 [ 62.650327][ T3635] __sys_connect_file+0x153/0x1a0 [ 62.655440][ T3635] __sys_connect+0x165/0x1a0 [ 62.660142][ T3635] __x64_sys_connect+0x73/0xb0 [ 62.664997][ T3635] do_syscall_64+0x39/0xb0 [ 62.669517][ T3635] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 62.675524][ T3635] [ 62.675524][ T3635] to a SOFTIRQ-irq-unsafe lock: [ 62.682538][ T3635] (k-clock-AF_INET){+++.}-{2:2} [ 62.682569][ T3635] [ 62.682569][ T3635] ... which became SOFTIRQ-irq-unsafe at: [ 62.695457][ T3635] ... [ 62.695465][ T3635] lock_acquire+0x1e3/0x630 [ 62.702647][ T3635] _raw_write_lock+0x2e/0x40 [ 62.707334][ T3635] l2tp_tunnel_register+0x126/0x1210 [ 62.712722][ T3635] l2tp_nl_cmd_tunnel_create+0x3d6/0x8b0 [ 62.718468][ T3635] genl_family_rcv_msg_doit+0x228/0x320 [ 62.724370][ T3635] genl_rcv_msg+0x445/0x780 [ 62.728968][ T3635] netlink_rcv_skb+0x157/0x430 [ 62.733825][ T3635] genl_rcv+0x28/0x40 [ 62.737928][ T3635] netlink_unicast+0x547/0x7f0 [ 62.742788][ T3635] netlink_sendmsg+0x91b/0xe10 [ 62.747662][ T3635] sock_sendmsg+0xd3/0x120 [ 62.752197][ T3635] ____sys_sendmsg+0x712/0x8c0 [ 62.757075][ T3635] ___sys_sendmsg+0x110/0x1b0 [ 62.761939][ T3635] __sys_sendmsg+0xf7/0x1c0 [ 62.766534][ T3635] do_syscall_64+0x39/0xb0 [ 62.771057][ T3635] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 62.777146][ T3635] [ 62.777146][ T3635] other info that might help us debug this: [ 62.777146][ T3635] [ 62.787370][ T3635] Possible interrupt unsafe locking scenario: [ 62.787370][ T3635] [ 62.796113][ T3635] CPU0 CPU1 [ 62.801474][ T3635] ---- ---- [ 62.807009][ T3635] lock(k-clock-AF_INET); [ 62.811428][ T3635] local_irq_disable(); [ 62.818182][ T3635] lock(k-slock-AF_INET); [ 62.825132][ T3635] lock(k-clock-AF_INET); [ 62.832068][ T3635] [ 62.835522][ T3635] lock(k-slock-AF_INET); [ 62.840114][ T3635] [ 62.840114][ T3635] *** DEADLOCK *** [ 62.840114][ T3635] [ 62.848352][ T3635] 4 locks held by syz-executor173/3635: [ 62.853891][ T3635] #0: ffff888070a1ac10 (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: __sock_release+0x86/0x280 [ 62.864464][ T3635] #1: ffff88807e660130 (sk_lock-AF_INET){+.+.}-{0:0}, at: mptcp_close+0x1d/0x150 [ 62.873718][ T3635] #2: ffff8880217e8d30 (k-sk_lock-AF_INET/1){+.+.}-{0:0}, at: mptcp_close+0x28/0x150 [ 62.883324][ T3635] #3: ffff8880217e8cb0 (k-slock-AF_INET){+.-.}-{2:2}, at: __lock_sock_fast+0x40/0xe0 [ 62.893009][ T3635] [ 62.893009][ T3635] the dependencies between SOFTIRQ-irq-safe lock and the holding lock: [ 62.903410][ T3635] -> (k-slock-AF_INET){+.-.}-{2:2} { [ 62.908717][ T3635] HARDIRQ-ON-W at: [ 62.912697][ T3635] lock_acquire+0x1e3/0x630 [ 62.918870][ T3635] _raw_spin_lock_bh+0x33/0x40 [ 62.925826][ T3635] lock_sock_nested+0x5f/0xf0 [ 62.932346][ T3635] __inet_bind+0x8c3/0xc90 [ 62.938421][ T3635] inet_bind+0x177/0x220 [ 62.944323][ T3635] udp_sock_create4+0x1d1/0x490 [ 62.950834][ T3635] rxe_setup_udp_tunnel.constprop.0+0xfc/0x220 [ 62.958655][ T3635] rxe_net_init+0x1f/0xd0 [ 62.964647][ T3635] rxe_module_init+0x10/0x49 [ 62.970891][ T3635] do_one_initcall+0x141/0x780 [ 62.977320][ T3635] kernel_init_freeable+0x6ff/0x788 [ 62.984199][ T3635] kernel_init+0x1e/0x1d0 [ 62.990186][ T3635] ret_from_fork+0x1f/0x30 [ 62.996283][ T3635] IN-SOFTIRQ-W at: [ 63.000443][ T3635] lock_acquire+0x1e3/0x630 [ 63.006615][ T3635] _raw_spin_lock+0x2e/0x40 [ 63.012803][ T3635] dccp_v4_ctl_send_reset+0xb00/0x12f0 [ 63.019958][ T3635] dccp_v4_rcv+0x1283/0x18e0 [ 63.026745][ T3635] ip_protocol_deliver_rcu+0x9f/0x7c0 [ 63.033776][ T3635] ip_local_deliver_finish+0x2ec/0x4c0 [ 63.040895][ T3635] ip_local_deliver+0x1ae/0x200 [ 63.047402][ T3635] ip_rcv_finish+0x1cf/0x2f0 [ 63.053651][ T3635] ip_rcv+0xae/0xd0 [ 63.059115][ T3635] __netif_receive_skb_one_core+0x114/0x180 [ 63.066764][ T3635] __netif_receive_skb+0x1f/0x1c0 [ 63.073459][ T3635] process_backlog+0x3e4/0x810 [ 63.079887][ T3635] __napi_poll+0xb8/0x770 [ 63.085981][ T3635] net_rx_action+0xa00/0xde0 [ 63.092243][ T3635] __do_softirq+0x1fb/0xadc [ 63.098504][ T3635] do_softirq.part.0+0xde/0x130 [ 63.105027][ T3635] __local_bh_enable_ip+0x106/0x130 [ 63.111891][ T3635] ip_finish_output2+0x7dc/0x2180 [ 63.118587][ T3635] __ip_finish_output+0x396/0x650 [ 63.125275][ T3635] ip_finish_output+0x31/0x280 [ 63.131874][ T3635] ip_output+0x1a3/0x320 [ 63.137772][ T3635] __ip_queue_xmit+0x8e2/0x1bf0 [ 63.144286][ T3635] dccp_transmit_skb+0xcfe/0x1450 [ 63.150988][ T3635] dccp_connect+0x39b/0x720 [ 63.157157][ T3635] dccp_v4_connect+0x1098/0x2010 [ 63.163754][ T3635] __inet_stream_connect+0x69e/0xed0 [ 63.170698][ T3635] inet_stream_connect+0x57/0xa0 [ 63.177377][ T3635] __sys_connect_file+0x153/0x1a0 [ 63.184053][ T3635] __sys_connect+0x165/0x1a0 [ 63.190303][ T3635] __x64_sys_connect+0x73/0xb0 [ 63.196807][ T3635] do_syscall_64+0x39/0xb0 [ 63.202892][ T3635] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 63.210468][ T3635] INITIAL USE at: [ 63.214383][ T3635] lock_acquire+0x1e3/0x630 [ 63.220650][ T3635] _raw_spin_lock_bh+0x33/0x40 [ 63.227007][ T3635] lock_sock_nested+0x5f/0xf0 [ 63.233271][ T3635] __inet_bind+0x8c3/0xc90 [ 63.239264][ T3635] inet_bind+0x177/0x220 [ 63.245106][ T3635] udp_sock_create4+0x1d1/0x490 [ 63.251531][ T3635] rxe_setup_udp_tunnel.constprop.0+0xfc/0x220 [ 63.259616][ T3635] rxe_net_init+0x1f/0xd0 [ 63.265527][ T3635] rxe_module_init+0x10/0x49 [ 63.271685][ T3635] do_one_initcall+0x141/0x780 [ 63.278030][ T3635] kernel_init_freeable+0x6ff/0x788 [ 63.284811][ T3635] kernel_init+0x1e/0x1d0 [ 63.290731][ T3635] ret_from_fork+0x1f/0x30 [ 63.299173][ T3635] } [ 63.301674][ T3635] ... key at: [] af_family_kern_slock_keys+0x20/0x300 [ 63.310541][ T3635] [ 63.310541][ T3635] the dependencies between the lock to be acquired [ 63.310553][ T3635] and SOFTIRQ-irq-unsafe lock: [ 63.324062][ T3635] -> (k-clock-AF_INET){+++.}-{2:2} { [ 63.329392][ T3635] HARDIRQ-ON-W at: [ 63.333383][ T3635] lock_acquire+0x1e3/0x630 [ 63.339559][ T3635] _raw_write_lock+0x2e/0x40 [ 63.345810][ T3635] l2tp_tunnel_register+0x126/0x1210 [ 63.352838][ T3635] l2tp_nl_cmd_tunnel_create+0x3d6/0x8b0 [ 63.360139][ T3635] genl_family_rcv_msg_doit+0x228/0x320 [ 63.367341][ T3635] genl_rcv_msg+0x445/0x780 [ 63.373498][ T3635] netlink_rcv_skb+0x157/0x430 [ 63.379920][ T3635] genl_rcv+0x28/0x40 [ 63.385588][ T3635] netlink_unicast+0x547/0x7f0 [ 63.392017][ T3635] netlink_sendmsg+0x91b/0xe10 [ 63.398443][ T3635] sock_sendmsg+0xd3/0x120 [ 63.404523][ T3635] ____sys_sendmsg+0x712/0x8c0 [ 63.410955][ T3635] ___sys_sendmsg+0x110/0x1b0 [ 63.417284][ T3635] __sys_sendmsg+0xf7/0x1c0 [ 63.423439][ T3635] do_syscall_64+0x39/0xb0 [ 63.429520][ T3635] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 63.437080][ T3635] HARDIRQ-ON-R at: [ 63.441058][ T3635] lock_acquire+0x1e3/0x630 [ 63.447228][ T3635] _raw_read_lock_bh+0x3f/0x70 [ 63.453649][ T3635] sock_i_uid+0x1f/0xb0 [ 63.459459][ T3635] udp_lib_lport_inuse+0x32/0x490 [ 63.466144][ T3635] udp_lib_get_port+0x835/0x18c0 [ 63.472751][ T3635] __inet_bind+0x831/0xc90 [ 63.478825][ T3635] inet_bind+0x177/0x220 [ 63.484731][ T3635] udp_sock_create4+0x1d1/0x490 [ 63.491247][ T3635] rxe_setup_udp_tunnel.constprop.0+0xfc/0x220 [ 63.499068][ T3635] rxe_net_init+0x1f/0xd0 [ 63.505059][ T3635] rxe_module_init+0x10/0x49 [ 63.511301][ T3635] do_one_initcall+0x141/0x780 [ 63.517734][ T3635] kernel_init_freeable+0x6ff/0x788 [ 63.524598][ T3635] kernel_init+0x1e/0x1d0 [ 63.530580][ T3635] ret_from_fork+0x1f/0x30 [ 63.536659][ T3635] SOFTIRQ-ON-W at: [ 63.540640][ T3635] lock_acquire+0x1e3/0x630 [ 63.547076][ T3635] _raw_write_lock+0x2e/0x40 [ 63.553328][ T3635] l2tp_tunnel_register+0x126/0x1210 [ 63.560278][ T3635] l2tp_nl_cmd_tunnel_create+0x3d6/0x8b0 [ 63.567577][ T3635] genl_family_rcv_msg_doit+0x228/0x320 [ 63.574782][ T3635] genl_rcv_msg+0x445/0x780 [ 63.580944][ T3635] netlink_rcv_skb+0x157/0x430 [ 63.587363][ T3635] genl_rcv+0x28/0x40 [ 63.593001][ T3635] netlink_unicast+0x547/0x7f0 [ 63.599417][ T3635] netlink_sendmsg+0x91b/0xe10 [ 63.605835][ T3635] sock_sendmsg+0xd3/0x120 [ 63.611916][ T3635] ____sys_sendmsg+0x712/0x8c0 [ 63.618345][ T3635] ___sys_sendmsg+0x110/0x1b0 [ 63.624679][ T3635] __sys_sendmsg+0xf7/0x1c0 [ 63.630849][ T3635] do_syscall_64+0x39/0xb0 [ 63.636928][ T3635] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 63.644532][ T3635] INITIAL USE at: [ 63.648427][ T3635] lock_acquire+0x1e3/0x630 [ 63.654526][ T3635] _raw_write_lock+0x2e/0x40 [ 63.660687][ T3635] l2tp_tunnel_register+0x126/0x1210 [ 63.667557][ T3635] l2tp_nl_cmd_tunnel_create+0x3d6/0x8b0 [ 63.674769][ T3635] genl_family_rcv_msg_doit+0x228/0x320 [ 63.681887][ T3635] genl_rcv_msg+0x445/0x780 [ 63.687958][ T3635] netlink_rcv_skb+0x157/0x430 [ 63.694293][ T3635] genl_rcv+0x28/0x40 [ 63.700806][ T3635] netlink_unicast+0x547/0x7f0 [ 63.707136][ T3635] netlink_sendmsg+0x91b/0xe10 [ 63.713485][ T3635] sock_sendmsg+0xd3/0x120 [ 63.719506][ T3635] ____sys_sendmsg+0x712/0x8c0 [ 63.725861][ T3635] ___sys_sendmsg+0x110/0x1b0 [ 63.732106][ T3635] __sys_sendmsg+0xf7/0x1c0 [ 63.738188][ T3635] do_syscall_64+0x39/0xb0 [ 63.744186][ T3635] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 63.751661][ T3635] INITIAL READ USE at: [ 63.756001][ T3635] lock_acquire+0x1e3/0x630 [ 63.762520][ T3635] _raw_read_lock_bh+0x3f/0x70 [ 63.769300][ T3635] sock_i_uid+0x1f/0xb0 [ 63.775459][ T3635] udp_lib_lport_inuse+0x32/0x490 [ 63.782511][ T3635] udp_lib_get_port+0x835/0x18c0 [ 63.789480][ T3635] __inet_bind+0x831/0xc90 [ 63.795903][ T3635] inet_bind+0x177/0x220 [ 63.802150][ T3635] udp_sock_create4+0x1d1/0x490 [ 63.809009][ T3635] rxe_setup_udp_tunnel.constprop.0+0xfc/0x220 [ 63.817174][ T3635] rxe_net_init+0x1f/0xd0 [ 63.823513][ T3635] rxe_module_init+0x10/0x49 [ 63.830102][ T3635] do_one_initcall+0x141/0x780 [ 63.836888][ T3635] kernel_init_freeable+0x6ff/0x788 [ 63.844126][ T3635] kernel_init+0x1e/0x1d0 [ 63.850565][ T3635] ret_from_fork+0x1f/0x30 [ 63.856995][ T3635] } [ 63.859487][ T3635] ... key at: [] af_kern_callback_keys+0x20/0x300 [ 63.868010][ T3635] ... acquired at: [ 63.871804][ T3635] lock_acquire+0x1e3/0x630 [ 63.876498][ T3635] _raw_write_lock_bh+0x33/0x40 [ 63.881532][ T3635] __mptcp_close+0x349/0x8d0 [ 63.886304][ T3635] mptcp_close+0x28/0x150 [ 63.890821][ T3635] inet_release+0x132/0x270 [ 63.895508][ T3635] __sock_release+0xcd/0x280 [ 63.900376][ T3635] sock_close+0x1c/0x20 [ 63.904720][ T3635] __fput+0x27c/0xa90 [ 63.908888][ T3635] task_work_run+0x16f/0x270 [ 63.913665][ T3635] do_exit+0xb3d/0x2a30 [ 63.918009][ T3635] do_group_exit+0xd4/0x2a0 [ 63.922700][ T3635] __x64_sys_exit_group+0x3e/0x50 [ 63.927919][ T3635] do_syscall_64+0x39/0xb0 [ 63.932700][ T3635] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 63.938778][ T3635] [ 63.941094][ T3635] [ 63.941094][ T3635] stack backtrace: [ 63.946975][ T3635] CPU: 0 PID: 3635 Comm: syz-executor173 Not tainted 6.1.0-rc4-syzkaller #0 [ 63.955740][ T3635] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 63.965815][ T3635] Call Trace: [ 63.969096][ T3635] [ 63.972029][ T3635] dump_stack_lvl+0xd1/0x138 [ 63.976639][ T3635] check_irq_usage.cold+0x4e4/0x761 [ 63.981857][ T3635] ? print_shortest_lock_dependencies_backwards+0x80/0x80 [ 63.989020][ T3635] ? check_path.constprop.0+0x24/0x50 [ 63.994438][ T3635] ? save_trace+0x43/0xad0 [ 63.998890][ T3635] ? _find_first_zero_bit+0x94/0xb0 [ 64.004113][ T3635] ? lockdep_unlock+0x11b/0x290 [ 64.009037][ T3635] __lock_acquire+0x2a5b/0x56d0 [ 64.013935][ T3635] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 64.019961][ T3635] lock_acquire+0x1e3/0x630 [ 64.024490][ T3635] ? __mptcp_close+0x349/0x8d0 [ 64.029268][ T3635] ? lock_release+0x810/0x810 [ 64.033962][ T3635] ? do_raw_spin_lock+0x124/0x2b0 [ 64.038999][ T3635] ? rwlock_bug.part.0+0x90/0x90 [ 64.043947][ T3635] _raw_write_lock_bh+0x33/0x40 [ 64.048809][ T3635] ? __mptcp_close+0x349/0x8d0 [ 64.053583][ T3635] __mptcp_close+0x349/0x8d0 [ 64.058184][ T3635] mptcp_close+0x28/0x150 [ 64.062522][ T3635] inet_release+0x132/0x270 [ 64.067039][ T3635] __sock_release+0xcd/0x280 [ 64.071650][ T3635] sock_close+0x1c/0x20 [ 64.075825][ T3635] __fput+0x27c/0xa90 [ 64.079822][ T3635] ? __sock_release+0x280/0x280 [ 64.084691][ T3635] task_work_run+0x16f/0x270 [ 64.089297][ T3635] ? task_work_cancel+0x30/0x30 [ 64.094166][ T3635] do_exit+0xb3d/0x2a30 [ 64.098340][ T3635] ? lock_downgrade+0x6e0/0x6e0 [ 64.103238][ T3635] ? do_raw_spin_lock+0x124/0x2b0 [ 64.108269][ T3635] ? mm_update_next_owner+0x7b0/0x7b0 [ 64.113657][ T3635] ? rwlock_bug.part.0+0x90/0x90 [ 64.118607][ T3635] ? _raw_spin_unlock_irq+0x23/0x50 [ 64.123818][ T3635] do_group_exit+0xd4/0x2a0 [ 64.128340][ T3635] __x64_sys_exit_group+0x3e/0x50 [ 64.133382][ T3635] do_syscall_64+0x39/0xb0 [ 64.137815][ T3635] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 64.143725][ T3635] RIP: 0033:0x7f4f85a2d199 [ 64.148145][ T3635] Code: Unable to access opcode bytes at 0x7f4f85a2d16f. [ 64.155155][ T3635] RSP: 002b:00007ffe87541b18 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 64.163573][ T3635] RAX: ffffffffffffffda RBX: 00007f4f85aa8410 RCX: 00007f4f85a2d199 [pid 3635] +++ exited with 1 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3635, si_uid=0, si_status=1, si_utime=0, si_stime=84} --- exit_group(0) = ? +++ exited with 0 +++ [ 64.171545][ T3635] RDX: 000000000000003c RSI