syzkaller login: [ 91.859504][ T54] cfg80211: failed to load regulatory.db
Warning: Permanently added '[localhost]:8076' (ED25519) to the list of known hosts.
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[ 255.542092][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU
[ 255.545729][ C0] rcu: 0-...!: (10500 ticks this GP) idle=6644/1/0x4000000000000000 softirq=29993/29993 fqs=0
[ 255.551734][ C0] rcu: (t=10500 jiffies g=21753 q=10 ncpus=1)
[ 255.554330][ C0] rcu: rcu_preempt kthread timer wakeup didn't happen for 10499 jiffies! g21753 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
[ 255.559588][ C0] rcu: Possible timer handling issue on cpu=0 timer-softirq=10310
[ 255.563040][ C0] rcu: rcu_preempt kthread starved for 10500 jiffies! g21753 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=0
[ 255.567947][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
[ 255.572180][ C0] rcu: RCU grace-period kthread stack dump:
[ 255.574780][ C0] task:rcu_preempt state:I stack:27432 pid:16 tgid:16 ppid:2 task_flags:0x208040 flags:0x00004000
[ 255.580095][ C0] Call Trace:
[ 255.581606][ C0]
[ 255.582903][ C0] __schedule+0x1798/0x4cc0
[ 255.585026][ C0] ? __lock_acquire+0xab9/0xd20
[ 255.587691][ C0] ? __pfx___schedule+0x10/0x10
[ 255.589483][ C0] ? schedule+0x91/0x360
[ 255.591159][ C0] schedule+0x165/0x360
[ 255.592731][ C0] schedule_timeout+0x12b/0x270
[ 255.594679][ C0] ? __pfx_schedule_timeout+0x10/0x10
[ 255.596770][ C0] ? __pfx_process_timeout+0x10/0x10
[ 255.598836][ C0] ? prepare_to_swait_event+0x341/0x380
[ 255.601055][ C0] rcu_gp_fqs_loop+0x301/0x1540
[ 255.603200][ C0] ? __pfx_rcu_gp_init+0x10/0x10
[ 255.605463][ C0] ? lockdep_hardirqs_on+0x9c/0x150
[ 255.607839][ C0] ? __pfx_rcu_gp_fqs_loop+0x10/0x10
[ 255.610219][ C0] ? _raw_spin_unlock_irqrestore+0xad/0x110
[ 255.612777][ C0] ? finish_swait+0xcd/0x1f0
[ 255.614725][ C0] rcu_gp_kthread+0x99/0x390
[ 255.616528][ C0] ? __pfx_rcu_gp_kthread+0x10/0x10
[ 255.618771][ C0] ? __kthread_parkme+0x7b/0x200
[ 255.620907][ C0] ? __kthread_parkme+0x1a1/0x200
[ 255.623074][ C0] kthread+0x70e/0x8a0
[ 255.624998][ C0] ? __pfx_rcu_gp_kthread+0x10/0x10
[ 255.627274][ C0] ? __pfx_kthread+0x10/0x10
[ 255.629363][ C0] ? _raw_spin_unlock_irq+0x23/0x50
[ 255.631634][ C0] ? lockdep_hardirqs_on+0x9c/0x150
[ 255.633825][ C0] ? __pfx_kthread+0x10/0x10
[ 255.635868][ C0] ret_from_fork+0x3fc/0x770
[ 255.637977][ C0] ? __pfx_ret_from_fork+0x10/0x10
[ 255.640261][ C0] ? __pfx_kthread+0x10/0x10
[ 255.642303][ C0] ret_from_fork_asm+0x1a/0x30
[ 255.644446][ C0]
[ 255.645979][ C0] CPU: 0 UID: 0 PID: 5677 Comm: syz-executor285 Not tainted syzkaller #0 PREEMPT(full)
[ 255.646016][ C0] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[ 255.646047][ C0] RIP: 0010:lock_is_held_type+0x137/0x190
[ 255.646064][ C0] Code: 01 75 44 48 c7 04 24 00 00 00 00 9c 8f 04 24 f7 04 24 00 02 00 00 75 4c 41 f7 c4 00 02 00 00 74 01 fb 65 48 8b 05 f9 23 25 07 <48> 3b 44 24 08 75 43 89 d8 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f
[ 255.646072][ C0] RSP: 0018:ffffc9000d9e6498 EFLAGS: 00000206
[ 255.646082][ C0] RAX: 2e16b0f43e00a000 RBX: 0000000000000000 RCX: 2e16b0f43e00a000
[ 255.646089][ C0] RDX: 0000000000000000 RSI: ffffffff8dbabc90 RDI: ffffffff8be34b80
[ 255.646096][ C0] RBP: 00000000ffffffff R08: 0000000000000000 R09: ffffffff8b1bfff8
[ 255.646103][ C0] R10: dffffc0000000000 R11: fffffbfff1f47807 R12: 0000000000000246
[ 255.646109][ C0] R13: ffff888033110000 R14: ffff88803efad228 R15: 0000000000000004
[ 255.646115][ C0] FS: 00007fc5979fe6c0(0000) GS:ffff88808d20c000(0000) knlGS:0000000000000000
[ 255.646123][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 255.646129][ C0] CR2: 0000200000003038 CR3: 00000000423f0000 CR4: 0000000000352ef0
[ 255.646158][ C0] Call Trace:
[ 255.646165][ C0]
[ 255.646172][ C0] tipc_sk_lookup+0x194/0x920
[ 255.646192][ C0] ? __local_bh_enable_ip+0x12d/0x1c0
[ 255.646204][ C0] ? lockdep_hardirqs_on+0x9c/0x150
[ 255.646215][ C0] ? tipc_sk_lookup+0xb8/0x920
[ 255.646225][ C0] ? __local_bh_enable_ip+0x12d/0x1c0
[ 255.646234][ C0] ? __pfx_tipc_sk_lookup+0x10/0x10
[ 255.646250][ C0] tipc_sk_rcv+0x3f9/0x2ba0
[ 255.646262][ C0] ? is_bpf_text_address+0x26/0x2b0
[ 255.646285][ C0] ? is_bpf_text_address+0x26/0x2b0
[ 255.646312][ C0] ? __pfx_tipc_sk_rcv+0x10/0x10
[ 255.646335][ C0] ? __raw_spin_lock_init+0x45/0x100
[ 255.646348][ C0] tipc_node_xmit+0x1c9/0xe90
[ 255.646356][ C0] ? tipc_sk_rcv+0x8a5/0x2ba0
[ 255.646364][ C0] ? tipc_node_xmit+0x1c9/0xe90
[ 255.646372][ C0] ? tipc_sk_backlog_rcv+0x1a1/0x230
[ 255.646383][ C0] ? __release_sock+0x24c/0x350
[ 255.646438][ C0] ? release_sock+0x5f/0x1f0
[ 255.646451][ C0] ? __fput+0x449/0xa70
[ 255.646464][ C0] ? task_work_run+0x1d1/0x260
[ 255.646474][ C0] ? exit_to_user_mode_loop+0xec/0x110
[ 255.646486][ C0] ? do_syscall_64+0x2bd/0x3b0
[ 255.646496][ C0] ? __pfx_tipc_node_xmit+0x10/0x10
[ 255.646524][ C0] tipc_node_xmit_skb+0xf4/0x150
[ 255.646535][ C0] ? __pfx_tipc_node_xmit_skb+0x10/0x10
[ 255.646542][ C0] ? tipc_msg_reverse+0x6b5/0x8f0
[ 255.646560][ C0] ? trace_tipc_sk_rej_msg+0x9c/0x240
[ 255.646571][ C0] tipc_sk_rcv+0x29c4/0x2ba0
[ 255.646587][ C0] ? unwind_next_frame+0xa5/0x2390
[ 255.646601][ C0] ? unwind_next_frame+0xa5/0x2390
[ 255.646610][ C0] ? unwind_next_frame+0x19ae/0x2390
[ 255.646623][ C0] ? ___sys_sendmsg+0x21f/0x2a0
[ 255.646637][ C0] ? __lock_acquire+0xab9/0xd20
[ 255.646651][ C0] ? __pfx_tipc_sk_rcv+0x10/0x10
[ 255.646677][ C0] ? __raw_spin_lock_init+0x45/0x100
[ 255.646689][ C0] tipc_node_xmit+0x1c9/0xe90
[ 255.646697][ C0] ? tipc_data_ready+0xbb/0x440
[ 255.646706][ C0] ? __pfx_tipc_node_xmit+0x10/0x10
[ 255.646711][ C0] ? __lock_acquire+0xab9/0xd20
[ 255.646729][ C0] tipc_sk_filter_rcv+0x12a0/0x30b0
[ 255.646752][ C0] ? __pfx_tipc_sk_filter_rcv+0x10/0x10
[ 255.646764][ C0] ? __local_bh_enable_ip+0x12d/0x1c0
[ 255.646783][ C0] tipc_sk_rcv+0x8a5/0x2ba0
[ 255.646793][ C0] ? tipc_msg_reverse+0x6b5/0x8f0
[ 255.646800][ C0] ? tipc_sk_filter_rcv+0x9df/0x30b0
[ 255.646810][ C0] ? tipc_sk_backlog_rcv+0x131/0x230
[ 255.646820][ C0] ? __release_sock+0x24c/0x350
[ 255.646830][ C0] ? task_work_run+0x1d1/0x260
[ 255.646841][ C0] ? exit_to_user_mode_loop+0xec/0x110
[ 255.646854][ C0] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 255.646882][ C0] ? __pfx_tipc_sk_rcv+0x10/0x10
[ 255.646905][ C0] ? __raw_spin_lock_init+0x45/0x100
[ 255.646917][ C0] tipc_node_xmit+0x1c9/0xe90
[ 255.646927][ C0] ? tipc_sk_filter_rcv+0x2df5/0x30b0
[ 255.646943][ C0] ? __pfx_tipc_node_xmit+0x10/0x10
[ 255.646969][ C0] tipc_node_distr_xmit+0x2a0/0x3b0
[ 255.646983][ C0] ? __pfx_tipc_node_distr_xmit+0x10/0x10
[ 255.647030][ C0] tipc_sk_backlog_rcv+0x1a1/0x230
[ 255.647047][ C0] ? __pfx_tipc_sk_backlog_rcv+0x10/0x10
[ 255.647058][ C0] ? __local_bh_enable_ip+0x12d/0x1c0
[ 255.647078][ C0] ? __pfx_tipc_sk_backlog_rcv+0x10/0x10
[ 255.647088][ C0] __release_sock+0x24c/0x350
[ 255.647105][ C0] release_sock+0x5f/0x1f0
[ 255.647120][ C0] tipc_release+0x1712/0x2190
[ 255.647139][ C0] ? tipc_release+0xae8/0x2190
[ 255.647150][ C0] ? __pfx_tipc_release+0x10/0x10
[ 255.647160][ C0] ? down_write+0x162/0x1f0
[ 255.647170][ C0] ? __pfx_down_write+0x10/0x10
[ 255.647179][ C0] ? do_raw_spin_lock+0x121/0x290
[ 255.647198][ C0] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 255.647212][ C0] sock_close+0xc3/0x240
[ 255.647224][ C0] ? __pfx_sock_close+0x10/0x10
[ 255.647232][ C0] __fput+0x449/0xa70
[ 255.647249][ C0] task_work_run+0x1d1/0x260
[ 255.647261][ C0] ? __pfx_task_work_run+0x10/0x10
[ 255.647277][ C0] ? exit_to_user_mode_loop+0x40/0x110
[ 255.647293][ C0] exit_to_user_mode_loop+0xec/0x110
[ 255.647306][ C0] do_syscall_64+0x2bd/0x3b0
[ 255.647316][ C0] ? lockdep_hardirqs_on+0x9c/0x150
[ 255.647329][ C0] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 255.647338][ C0] ? clear_bhb_loop+0x60/0xb0
[ 255.647349][ C0] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 255.647358][ C0] RIP: 0033:0x7fc597a45a59
[ 255.647452][ C0] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 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 b0 ff ff ff f7 d8 64 89 01 48
[ 255.647460][ C0] RSP: 002b:00007fc5979fe218 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 255.647470][ C0] RAX: 00000000000203a0 RBX: 00007fc597ad1328 RCX: 00007fc597a45a59
[ 255.647477][ C0] RDX: 0000000000000000 RSI: 00002000000003c0 RDI: 0000000000000003
[ 255.647483][ C0] RBP: 00007fc597ad1320 R08: 0000000000000000 R09: 0000000000000000
[ 255.647488][ C0] R10: 00002000000003c0 R11: 0000000000000246 R12: 00007fc597a9e594
[ 255.647494][ C0] R13: 0000200000004e40 R14: 0000200000002890 R15: 0000200000002740
[ 255.647511][ C0]
VM DIAGNOSIS:
05:35:43 Registers:
info registers vcpu 0
CPU#0
RAX=0000000000000030 RBX=0000000000000030 RCX=0000000000000000 RDX=00000000000003f8
RSI=0000000000000000 RDI=0000000000000020 RBP=00000000000003f8 RSP=ffffc900000073f0
R8 =ffff8880317a8237 R9 =1ffff110062f5046 R10=dffffc0000000000 R11=ffffffff8550fd80
R12=dffffc0000000000 R13=ffffffff99b098e8 R14=ffffffff99dfe820 R15=0000000000000000
RIP=ffffffff8550fdfc RFL=00000002 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=0
ES =0000 0000000000000000 ffffffff 00c00000
CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA]
SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA]
DS =0000 0000000000000000 ffffffff 00c00000
FS =0000 00007fc5979fe6c0 ffffffff 00c00000
GS =0000 ffff88808d20c000 ffffffff 00c00000
LDT=0000 0000000000000000 ffffffff 00c00000
TR =0040 fffffe0000003000 00004087 00008b00 DPL=0 TSS64-busy
GDT= fffffe0000001000 0000007f
IDT= fffffe0000000000 00000fff
CR0=80050033 CR2=0000200000003038 CR3=00000000423f0000 CR4=00352ef0
DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000
DR6=00000000ffff0ff0 DR7=0000000000000400
EFER=0000000000000d01
FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80
FPR0=0000000000000000 0000 FPR1=0000000000000000 0000
FPR2=0000000000000000 0000 FPR3=0000000000000000 0000
FPR4=0000000000000000 0000 FPR5=0000000000000000 0000
FPR6=0000000000000000 0000 FPR7=0000000000000000 0000
Opmask00=00000000fffffff0 Opmask01=0000000000000001 Opmask02=00000000fff7ffff Opmask03=0000000000000000
Opmask04=0000000000000000 Opmask05=0000000000000000 Opmask06=0000000000000000 Opmask07=0000000000000000
ZMM00=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM01=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM02=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00007fc597a724a7
ZMM03=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00007ffe43ecbe10 00007fc597ad6ee0
ZMM04=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00007fc597a05b6d
ZMM05=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM06=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM07=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000018 0000000000000000
ZMM08=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM09=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM10=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM11=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM12=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM13=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM14=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM15=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM16=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM17=0000000000000000 0000000000000000 0000000000000000 0000000000000000 00007fc597ad09e8 00007fc597ad09e0 00007fc597ad09e0 00007fc597ad6be0
ZMM18=0000000000000000 0000000000000000 0000000000000000 0000000000000000 7865006a64615f65 726f63735f6d6f6f 2f666c65732f636f 72702f0030303031
ZMM19=0000000000000000 0000000000000000 0000000000000000 0000000000000000 5d40004f41445f40 574a46565f484a4a 0a434940560a464a 57550a0015151514
ZMM20=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM21=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM22=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM23=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM24=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM25=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM26=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM27=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM28=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM29=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM30=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM31=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000