program: syz_open_dev$usbmon(&(0x7f00000015c0), 0x5dc, 0x80000) (async) syz_open_dev$usbmon(&(0x7f00000015c0), 0x5dc, 0x80000) openat$mice(0xffffffffffffff9c, &(0x7f0000000100), 0x84000) (async) openat$mice(0xffffffffffffff9c, &(0x7f0000000100), 0x84000) r0 = socket$nl_route(0x10, 0x3, 0x0) socket$kcm(0x23, 0x5, 0x0) (async) r1 = socket$kcm(0x23, 0x5, 0x0) listen(r1, 0x800) r2 = socket$kcm(0x10, 0x2, 0x0) sendmsg$inet(r2, &(0x7f0000000440)={0x0, 0x0, &(0x7f0000000f00)=[{&(0x7f0000000200)="5c00000014006b05c84e21000ab16d6e230675f811000000440002005817d30461bc24eeb556a7ef595105ea1698fa51f60a64c9f408000000e786a6d0bdbdc3d44bd70011b6c0504bb9189d9193e9bd00"/92, 0x5c}], 0x1, 0x0, 0x0, 0x1f00c00e}, 0x240040c4) r3 = socket$phonet_pipe(0x23, 0x5, 0x2) connect$phonet_pipe(r3, &(0x7f0000000040)={0x23, 0x0, 0x58}, 0x10) (async) connect$phonet_pipe(r3, &(0x7f0000000040)={0x23, 0x0, 0x58}, 0x10) accept4(r1, 0x0, 0x0, 0x80000) seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000000)={0x1, &(0x7f0000000100)=[{0x6, 0x0, 0xe, 0x7fff0000}]}) (async) r4 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000000)={0x1, &(0x7f0000000100)=[{0x6, 0x0, 0xe, 0x7fff0000}]}) socket$nl_netfilter(0x10, 0x3, 0xc) (async) r5 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPCTNL_MSG_CT_NEW(r5, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000180)={0x6c, 0x0, 0x1, 0x401, 0x0, 0x0, {0x2}, [@CTA_TUPLE_ORIG={0x2c, 0x1, 0x0, 0x1, [@CTA_TUPLE_IP={0x14, 0x1, 0x0, 0x1, @ipv4={{0x8, 0x1, @multicast2=0xe0000001}, {0x8, 0x2, @dev}}}, @CTA_TUPLE_PROTO={0xc, 0x2, 0x0, 0x1, {0x5}}, @CTA_TUPLE_ZONE={0x6, 0x3, 0x1, 0x0, 0x4}]}, @CTA_TUPLE_REPLY={0x24, 0x2, 0x0, 0x1, [@CTA_TUPLE_IP={0x14, 0x1, 0x0, 0x1, @ipv4={{0x8, 0x1, @multicast1}, {0x8, 0x2, @multicast1}}}, @CTA_TUPLE_PROTO={0xc, 0x2, 0x0, 0x1, {0x5}}]}, @CTA_TIMEOUT={0x8, 0x7, 0x1, 0x0, 0x2}]}, 0x6c}}, 0x0) r6 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPCTNL_MSG_CT_NEW(r6, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)={0x6c, 0x0, 0x1, 0x401, 0x0, 0x1a14, {0x2}, [@CTA_TUPLE_ORIG={0x24, 0x1, 0x0, 0x1, [@CTA_TUPLE_IP={0x14, 0x1, 0x0, 0x1, @ipv4={{0x8, 0x1, @multicast1}, {0x8, 0x2, @multicast1}}}, @CTA_TUPLE_PROTO={0xc, 0x2, 0x0, 0x1, {0x5}}]}, @CTA_TUPLE_REPLY={0x2c, 0x2, 0x0, 0x1, [@CTA_TUPLE_IP={0x14, 0x1, 0x0, 0x1, @ipv4={{0x8}, {0x8, 0x2, @initdev={0xac, 0x1e, 0x0, 0x0}}}}, @CTA_TUPLE_PROTO={0xc, 0x2, 0x0, 0x1, {0x5}}, @CTA_TUPLE_ZONE={0x6, 0x3, 0x1, 0x0, 0x1}]}, @CTA_TIMEOUT={0x8, 0x7, 0x1, 0x0, 0x1}]}, 0x6c}}, 0x0) setsockopt$PNPIPE_ENCAP(r3, 0x113, 0x1, &(0x7f0000000080)=0x1, 0x4) syz_mount_image$ocfs2(&(0x7f0000004440), &(0x7f0000000040)='./file1\x00', 0x8c0, &(0x7f0000000300)=ANY=[@ANYBLOB="61636c2c6865617274626561743d6e6f6e652c6469725f72f06c765f6c6576656c3d3030303030304e303030303030303030303030995c3a46686572656e63793d66756c6c2c636f686572656e63793d66a56c6c2c6c6f63616c666c6f636b732c636f686572656e63793d66756c6c2c6e6f61636c2c002888c4c8a5425cd6823dc1073def7db2908d820460043e5c784a8e6551891f65bf4c6fc3ca3c30693d3c1411075fba8c390596b476aebc7b3f7e52d77b1a"], 0x1, 0x4421, &(0x7f0000004500)="$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close_range(r4, 0xffffffffffffffff, 0x0) (async) close_range(r4, 0xffffffffffffffff, 0x0) sendmsg$nl_route(r0, &(0x7f0000000480)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000640)=ANY=[@ANYBLOB="400000001000370400006b82e7e9000000000000", @ANYRES32=0x0, @ANYBLOB="8b0404000000000020001280080001007369740035ff0280080002007f000001060012004e220000"], 0x40}}, 0x1400c092) (async) sendmsg$nl_route(r0, &(0x7f0000000480)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000640)=ANY=[@ANYBLOB="400000001000370400006b82e7e9000000000000", @ANYRES32=0x0, @ANYBLOB="8b0404000000000020001280080001007369740035ff0280080002007f000001060012004e220000"], 0x40}}, 0x1400c092) perf_event_open(&(0x7f0000000040)={0x5, 0x80, 0xce, 0x1, 0x0, 0x0, 0x0, 0x8, 0x44d2c, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x9a3, 0x0, @perf_config_ext={0xc1a0, 0x8}, 0x1081a, 0xa67, 0xa1c, 0x3, 0x6, 0x87c, 0x1, 0x0, 0x0, 0x0, 0x10}, 0x0, 0x4000000000, 0xffffffffffffffff, 0x1) (async) perf_event_open(&(0x7f0000000040)={0x5, 0x80, 0xce, 0x1, 0x0, 0x0, 0x0, 0x8, 0x44d2c, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x9a3, 0x0, @perf_config_ext={0xc1a0, 0x8}, 0x1081a, 0xa67, 0xa1c, 0x3, 0x6, 0x87c, 0x1, 0x0, 0x0, 0x0, 0x10}, 0x0, 0x4000000000, 0xffffffffffffffff, 0x1) getsockopt$sock_cred(r0, 0x1, 0x11, &(0x7f0000000040)={0x0}, &(0x7f00000000c0)=0xc) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000180)={r7, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30) r8 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) r9 = openat$cgroup_procs(r8, &(0x7f0000000480)='cgroup.threads\x00', 0x2, 0x0) sendfile(r9, r9, 0x0, 0x4) prlimit64(0x0, 0x7, &(0x7f0000000000), 0x0) (async) prlimit64(0x0, 0x7, &(0x7f0000000000), 0x0) userfaultfd(0x80001) seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000080)={0x1, &(0x7f0000000000)=[{0x6}]}) bpf$PROG_LOAD_XDP(0x5, 0x0, 0x0) readv(r9, &(0x7f0000000340)=[{&(0x7f0000001740)=""/153, 0x99}], 0x1) [ 86.328727][ T5325] netlink: 'syz.0.0': attribute type 2 has an invalid length. [ 86.444498][ T5290] Bluetooth: hci0: command tx timeout [ 87.076907][ T5325] loop0: detected capacity change from 0 to 32768 [ 87.109387][ T5325] ======================================================= [ 87.109387][ T5325] WARNING: The mand mount option has been deprecated and [ 87.109387][ T5325] and is ignored by this kernel. Remove the mand [ 87.109387][ T5325] option from the mount to silence this warning. [ 87.109387][ T5325] ======================================================= [ 87.201221][ T5325] ocfs2: Unknown parameter 'dir_ršlv_level' [ 87.288790][ T24] audit: type=1326 audit(1779181426.692:2): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined pid=5324 comm="syz.0.0" exe="/syz-executor" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7f680959ce59 code=0x0 [ 87.307415][ C0] [ 87.308507][ C0] ================================ [ 87.310504][ C0] WARNING: inconsistent lock state [ 87.312592][ C0] syzkaller #0 Not tainted [ 87.314644][ C0] -------------------------------- [ 87.316933][ C0] inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. [ 87.319812][ C0] syz.0.0/5325 [HC0[0]:SC1[1]:HE1:SE0] takes: [ 87.326964][ C0] ffff8880420a35e8 (slock-AF_PHONET/1){+.?.}-{3:3}, at: __sk_receive_skb+0x1bf/0x9e0 [ 87.331187][ C0] {SOFTIRQ-ON-W} state was registered at: [ 87.333742][ C0] lock_acquire+0x106/0x350 [ 87.335889][ C0] _raw_spin_lock_nested+0x32/0x50 [ 87.338185][ C0] __sk_receive_skb+0x1bf/0x9e0 [ 87.340432][ C0] pep_do_rcv+0x685/0xaa0 [ 87.342328][ C0] __release_sock+0x297/0x3a0 [ 87.343961][ C0] release_sock+0x190/0x260 [ 87.345740][ C0] pep_sock_accept+0xdf5/0x12b0 [ 87.347680][ C0] pn_socket_accept+0xc9/0x2e0 [ 87.349663][ C0] do_accept+0x521/0x760 [ 87.351282][ C0] __sys_accept4+0x139/0x230 [ 87.353215][ C0] __x64_sys_accept4+0x9a/0xb0 [ 87.355270][ C0] do_syscall_64+0x15f/0xf80 [ 87.357498][ C0] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 87.360082][ C0] irq event stamp: 50574 [ 87.361994][ C0] hardirqs last enabled at (50574): [] _raw_spin_unlock_irq+0x23/0x50 [ 87.366345][ C0] hardirqs last disabled at (50573): [] _raw_spin_lock_irq+0x17/0x50 [ 87.370643][ C0] softirqs last enabled at (50568): [] netif_rx+0x79/0x90 [ 87.374373][ C0] softirqs last disabled at (50569): [] do_softirq+0x76/0xd0 [ 87.378425][ C0] [ 87.378425][ C0] other info that might help us debug this: [ 87.381887][ C0] Possible unsafe locking scenario: [ 87.381887][ C0] [ 87.384992][ C0] CPU0 [ 87.386639][ C0] ---- [ 87.388148][ C0] lock(slock-AF_PHONET/1); [ 87.390142][ C0] [ 87.391810][ C0] lock(slock-AF_PHONET/1); [ 87.393911][ C0] [ 87.393911][ C0] *** DEADLOCK *** [ 87.393911][ C0] [ 87.397382][ C0] 5 locks held by syz.0.0/5325: [ 87.399722][ C0] #0: ffff888012f8ac40 (&sb->s_type->i_mutex_key#13){+.+.}-{4:4}, at: sock_close+0x9b/0x240 [ 87.404170][ C0] #1: ffff8880420a3ce0 (sk_lock-AF_PHONET){+.+.}-{0:0}, at: pep_sock_close+0x86/0x5b0 [ 87.408491][ C0] #2: ffffffff8e95cca0 (rcu_read_lock){....}-{1:3}, at: process_backlog+0x3eb/0x1950 [ 87.412558][ C0] #3: ffff8880420a42e8 (slock-AF_PHONET){+.-.}-{3:3}, at: __sk_receive_skb+0x1f1/0x9e0 [ 87.416837][ C0] #4: ffff8880420a4360 (sk_lock-AF_PHONET){+.+.}-{0:0}, at: phonet_rcv+0x781/0xc40 [ 87.420830][ C0] [ 87.420830][ C0] stack backtrace: [ 87.423366][ C0] CPU: 0 UID: 0 PID: 5325 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 87.423380][ C0] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 87.423386][ C0] Call Trace: [ 87.423393][ C0] [ 87.423399][ C0] dump_stack_lvl+0xe8/0x150 [ 87.423414][ C0] print_usage_bug+0x28b/0x2e0 [ 87.423426][ C0] mark_lock_irq+0x410/0x420 [ 87.423433][ C0] ? __pfx_stack_trace_save+0x10/0x10 [ 87.423444][ C0] mark_lock+0x115/0x190 [ 87.423452][ C0] __lock_acquire+0x689/0x2cf0 [ 87.423461][ C0] ? sk_filter_trim_cap+0x1a7/0xe70 [ 87.423477][ C0] ? sk_filter_trim_cap+0x91e/0xe70 [ 87.423490][ C0] ? ret_from_fork_asm+0x1a/0x30 [ 87.423503][ C0] ? __sk_receive_skb+0x1bf/0x9e0 [ 87.423513][ C0] lock_acquire+0x106/0x350 [ 87.423524][ C0] ? __sk_receive_skb+0x1bf/0x9e0 [ 87.423537][ C0] _raw_spin_lock_nested+0x32/0x50 [ 87.423562][ C0] ? __sk_receive_skb+0x1bf/0x9e0 [ 87.423568][ C0] __sk_receive_skb+0x1bf/0x9e0 [ 87.423576][ C0] pep_do_rcv+0x685/0xaa0 [ 87.423585][ C0] ? __pfx_pep_do_rcv+0x10/0x10 [ 87.423595][ C0] ? __pfx_pep_do_rcv+0x10/0x10 [ 87.423605][ C0] ? phonet_rcv+0x781/0xc40 [ 87.423615][ C0] __sk_receive_skb+0x962/0x9e0 [ 87.423626][ C0] phonet_rcv+0x781/0xc40 [ 87.423637][ C0] ? sock_wfree+0x28e/0x750 [ 87.423652][ C0] ? __pfx_phonet_rcv+0x10/0x10 [ 87.423665][ C0] ? process_backlog+0x3eb/0x1950 [ 87.423676][ C0] ? process_backlog+0x3eb/0x1950 [ 87.423686][ C0] ? __pfx_phonet_rcv+0x10/0x10 [ 87.423697][ C0] ? process_backlog+0x3eb/0x1950 [ 87.423704][ C0] process_backlog+0xc66/0x1950 [ 87.423713][ C0] __napi_poll+0xae/0x340 [ 87.423718][ C0] ? skb_defer_free_flush+0x233/0x260 [ 87.423725][ C0] net_rx_action+0x627/0xf70 [ 87.423731][ C0] ? lock_acquire+0x106/0x350 [ 87.423739][ C0] ? __pfx_net_rx_action+0x10/0x10 [ 87.423750][ C0] handle_softirqs+0x22a/0x840 [ 87.423758][ C0] ? do_softirq+0x76/0xd0 [ 87.423764][ C0] ? netif_rx+0x79/0x90 [ 87.423772][ C0] do_softirq+0x76/0xd0 [ 87.423779][ C0] [ 87.423781][ C0] [ 87.423783][ C0] __local_bh_enable_ip+0xf8/0x130 [ 87.423789][ C0] netif_rx+0x83/0x90 [ 87.423801][ C0] pn_send+0x62a/0x8e0 [ 87.423814][ C0] pn_skb_send+0x218/0x510 [ 87.423826][ C0] pep_sock_close+0x2c1/0x5b0 [ 87.423841][ C0] pn_socket_release+0x9b/0xc0 [ 87.423851][ C0] sock_close+0xc3/0x240 [ 87.423866][ C0] ? __pfx_sock_close+0x10/0x10 [ 87.423879][ C0] __fput+0x44f/0xa60 [ 87.423891][ C0] task_work_run+0x1d9/0x270 [ 87.423907][ C0] ? __pfx_task_work_run+0x10/0x10 [ 87.423922][ C0] exit_to_user_mode_loop+0xf3/0x4d0 [ 87.423933][ C0] ? rcu_is_watching+0x15/0xb0 [ 87.423944][ C0] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 87.423954][ C0] do_syscall_64+0x33e/0xf80 [ 87.423969][ C0] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 87.423979][ C0] ? clear_bhb_loop+0x40/0x90 [ 87.423991][ C0] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 87.424001][ C0] RIP: 0033:0x7f680959ce59 [ 87.424018][ C0] 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 e8 ff ff ff f7 d8 64 89 01 48 [ 87.424024][ C0] RSP: 002b:00007f68059f4fe8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 [ 87.424032][ C0] RAX: 0000000000000000 RBX: 00007f6809815fa0 RCX: 00007f680959ce59 [ 87.424037][ C0] RDX: 0000000000000000 RSI: ffffffffffffffff RDI: 0000000000000000 [ 87.424041][ C0] RBP: 00007f6809632d6f R08: 0000000000000000 R09: 0000000000000000 [ 87.424049][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 87.424053][ C0] R13: 00007f6809816038 R14: 00007f6809815fa0 R15: 00007ffe7fc2fee8 [ 87.424059][ C0] [ 87.781640][ T5325] gprs0: detached