last executing test programs: 2m38.757202603s ago: executing program 0 (id=59): r0 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x2, 0x0, &(0x7f0000000140)={0x0, 0x0}) write(r0, &(0x7f0000000000)="fa", 0xfffffdef) write(r0, &(0x7f0000000040)="862a", 0x2) 2m22.50816353s ago: executing program 1 (id=60): r0 = socket$key(0xf, 0x3, 0x2) sendmsg$key(r0, &(0x7f0000000800)={0x0, 0x0, &(0x7f00008feff0)={&(0x7f0000000380)=ANY=[@ANYBLOB="020101090800000000170006ffffff00030006001000000002000000e0000009f9ff0f0005000000030005007217440502000000e0000001"], 0x40}}, 0x0) sendmsg$key(r0, &(0x7f0000000000)={0x0, 0x3, &(0x7f0000000080)={&(0x7f00000000c0)=ANY=[@ANYBLOB="020300090a00000000000000000000000300060000000e0002000000e0000009000000000000000002000100000000000000000200000000030005000000000002000000e00000f1"], 0x50}}, 0x0) 2m2.008771001s ago: executing program 0 (id=61): r0 = openat$sw_sync(0xffffffffffffff9c, &(0x7f0000001700), 0x0, 0x0) mprotect(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1) ioctl$SW_SYNC_IOC_CREATE_FENCE(r0, 0xc0285700, &(0x7f0000000000)={0x4, "f34f22eba164203d362bfd8fe8fb28df3b26000028f4a52c0800045600"}) 1m53.560754845s ago: executing program 1 (id=62): r0 = openat$dir(0xffffffffffffff9c, &(0x7f00000000c0)='./cgroup\x00', 0x0, 0x0) prlimit64(0x0, 0x7, &(0x7f0000002640)={0x3, 0xa5b1}, 0x0) open_by_handle_at(r0, &(0x7f0000000040)=@ceph_nfs_confh={0x10, 0x2, {0x8, 0x9}}, 0x0) 1m37.340351849s ago: executing program 0 (id=63): r0 = openat$sysfs(0xffffffffffffff9c, &(0x7f0000000200)='/sys/power/pm_wakeup_irq', 0x40, 0x101) io_setup(0x6, &(0x7f00000007c0)=0x0) io_submit(r1, 0x2, &(0x7f0000000280)=[&(0x7f0000000780)={0x0, 0x0, 0x0, 0x0, 0xa, r0, 0x0, 0x4000, 0x7fe, 0x0, 0x0, r0}, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1, 0x7, r0, 0x0, 0x0, 0x1, 0x0, 0x3, r0}]) 1m23.385585718s ago: executing program 1 (id=64): r0 = socket$inet_tcp(0x2, 0x1, 0x0) setsockopt$inet_tcp_TCP_FASTOPEN_KEY(r0, 0x6, 0x21, &(0x7f0000000000)="3a3f5d2129ffc724bcebbf31c6bdac74", 0x10) close_range(r0, r0, 0x0) 1m1.920834741s ago: executing program 1 (id=65): r0 = add_key$keyring(&(0x7f0000000000), &(0x7f0000000100)={'syz', 0x1}, 0x0, 0x0, 0xfffffffffffffffe) keyctl$restrict_keyring(0x1d, r0, 0x0, 0x0) add_key$fscrypt_v1(&(0x7f0000000440), &(0x7f0000000480)={'fscrypt:', @desc2}, &(0x7f00000004c0)={0x0, "3e82554dc8ccfbc2e85ec82d4ee9df60f6ae16b1a5f2c848722ba3b132e4fde178c945bd950b0477e801fc8a1be9b4ebbe9c2289a6b0aa00"}, 0x48, r0) 58.876927867s ago: executing program 0 (id=66): r0 = socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$ethtool(&(0x7f0000000240), 0xffffffffffffffff) sendmsg$ETHTOOL_MSG_LINKMODES_SET(r0, &(0x7f0000000280)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000002c0)={0x3c, r1, 0x1, 0x0, 0x0, {}, [@ETHTOOL_A_LINKMODES_HEADER={0x18, 0x1, 0x0, 0x1, [@ETHTOOL_A_HEADER_DEV_NAME={0x14, 0x2, 'syz_tun\x00'}]}, @ETHTOOL_A_LINKMODES_LANES={0x8, 0x9, 0x1}, @ETHTOOL_A_LINKMODES_MASTER_SLAVE_CFG={0x5, 0x7, 0x2}]}, 0x3c}}, 0x0) 36.252176425s ago: executing program 1 (id=67): r0 = openat$proc_mixer(0xffffffffffffff9c, &(0x7f0000000000)='/proc/asound/card0/oss_mixer\x00', 0x1, 0x0) write$proc_mixer(r0, 0x0, 0x0) close(r0) 28.610405177s ago: executing program 0 (id=68): r0 = syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) bind$nfc_llcp(r0, &(0x7f0000000240)={0x27, 0x0, 0x0, 0x4, 0x0, 0x3, "e88509de7f1939e8abff005597c8ef039a5be42200", 0x13}, 0x60) getsockname(r0, 0x0, 0x0) 13.395515367s ago: executing program 1 (id=69): keyctl$instantiate(0xc, 0x0, &(0x7f0000000100)=@encrypted_new={'new ', 'default', 0x20, 'trusted:', 'syz', 0x20, 0x1000}, 0x2d, 0xfffffffffffffff9) r0 = add_key(&(0x7f0000000140)='encrypted\x00', &(0x7f0000000180), &(0x7f0000000100), 0xca, 0xfffffffffffffffe) keyctl$update(0x2, r0, 0x0, 0x0) 0s ago: executing program 0 (id=70): r0 = syz_usb_connect(0x0, 0x3f, &(0x7f00000000c0)=ANY=[@ANYBLOB="11010000733336088dee1edb23610000000109022d0101100000000904000003fe03010009cd8d1f0002000000090505020000fcffff09058b1e20"], 0x0) syz_usb_control_io$uac1(r0, 0x0, &(0x7f00000009c0)={0x44, &(0x7f0000000340)=ANY=[@ANYBLOB="40000f0000000127"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) syz_open_dev$char_usb(0xc, 0xb4, 0x0) kernel console output (not intermixed with test programs): Warning: Permanently added '[localhost]:42468' (ED25519) to the list of known hosts. syzkaller login: [ 619.090831][ T3195] cgroup: Unknown subsys name 'net' [ 620.251160][ T3195] cgroup: Unknown subsys name 'cpuset' [ 620.447303][ T3195] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 712.665925][ T3195] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 845.147778][ T3208] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 845.300188][ T3208] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 847.842789][ T3207] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 847.944621][ T3207] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 864.120536][ T3208] hsr_slave_0: entered promiscuous mode [ 864.220880][ T3208] hsr_slave_1: entered promiscuous mode [ 871.966355][ T3207] hsr_slave_0: entered promiscuous mode [ 872.008268][ T3207] hsr_slave_1: entered promiscuous mode [ 872.067998][ T3207] debugfs: 'hsr0' already exists in 'hsr' [ 872.071671][ T3207] Cannot create hsr debugfs directory [ 881.571700][ T3208] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 882.278196][ T3208] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 882.458250][ T3208] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 882.765426][ T3208] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 885.678175][ T3207] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 886.109347][ T3207] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 886.257665][ T3207] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 886.410165][ T3207] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 902.439144][ T3208] 8021q: adding VLAN 0 to HW filter on device bond0 [ 905.271809][ T3207] 8021q: adding VLAN 0 to HW filter on device bond0 [ 979.387803][ T3208] veth0_vlan: entered promiscuous mode [ 980.468833][ T3208] veth1_vlan: entered promiscuous mode [ 982.499897][ T3207] veth0_vlan: entered promiscuous mode [ 983.427382][ T3207] veth1_vlan: entered promiscuous mode [ 986.275204][ T3208] veth0_macvtap: entered promiscuous mode [ 986.798286][ T3208] veth1_macvtap: entered promiscuous mode [ 989.148956][ T3207] veth0_macvtap: entered promiscuous mode [ 989.674732][ T3297] netdevsim netdevsim1 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 989.681530][ T3297] netdevsim netdevsim1 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 989.794473][ T3297] netdevsim netdevsim1 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 989.848465][ T3297] netdevsim netdevsim1 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 990.126729][ T3207] veth1_macvtap: entered promiscuous mode [ 996.996843][ T3211] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 997.000261][ T3211] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 997.097391][ T3211] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 997.187648][ T3211] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 999.968196][ T3208] soft_limit_in_bytes is deprecated and will be removed. Please report your usecase to linux-mm@kvack.org if you depend on this functionality. [ 1058.997657][ T3845] batadv_slave_0: entered allmulticast mode [ 1169.317600][ T3866] fuse: Invalid rootmode [ 1717.550772][ T31] audit: type=1800 audit(1715.790:2): pid=3973 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed comm="syz.0.57" name="SYSV00000000" dev="hugetlbfs" ino=0 res=0 errno=0 [ 1905.377941][ T806] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 1905.939506][ T806] usb 1-1: Using ep0 maxpacket: 8 [ 1906.647914][ T806] usb 1-1: config index 0 descriptor too short (expected 301, got 45) [ 1906.714218][ T806] usb 1-1: config 16 interface 0 altsetting 0 endpoint 0x5 has invalid wMaxPacketSize 0 [ 1906.718587][ T806] usb 1-1: config 16 interface 0 altsetting 0 bulk endpoint 0x5 has invalid maxpacket 0 [ 1906.815261][ T806] usb 1-1: config 16 interface 0 altsetting 0 bulk endpoint 0x8B has invalid maxpacket 32 [ 1906.817895][ T806] usb 1-1: config 16 interface 0 altsetting 0 has 2 endpoint descriptors, different from the interface descriptor's value: 3 [ 1906.821151][ T806] usb 1-1: New USB device found, idVendor=ee8d, idProduct=db1e, bcdDevice=61.23 [ 1906.940524][ T806] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 1908.700907][ T33] INFO: task kworker/u8:4:3212 blocked for more than 430 seconds. [ 1908.776260][ T33] Tainted: G L syzkaller #0 [ 1908.778661][ T33] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1908.780633][ T33] task:kworker/u8:4 state:D stack:0 pid:3212 tgid:3212 ppid:2 task_flags:0x4208060 flags:0x00000000 [ 1908.887820][ T33] Workqueue: wg-kex-wg1 wg_packet_handshake_send_worker [ 1909.038166][ T33] Call Trace: [ 1909.040241][ T33] [] __schedule+0xf14/0x4220 [ 1909.099981][ T33] [] schedule+0xb4/0x334 SYZFAIL: failed to recv rpc fd=3 want=4 recv=0 n=0 (errno 9: Bad file descriptor) [ 1909.173318][ T33] [] schedule_preempt_disabled+0x16/0x28 [ 1909.175644][ T33] [] rwsem_down_write_slowpath+0x4b4/0xe20 [ 1909.177617][ T33] [] down_write+0x172/0x190 [ 1909.179471][ T33] [] wg_noise_handshake_create_initiation+0xee/0x5e4 [ 1909.181900][ T33] [] wg_packet_send_handshake_initiation+0x182/0x2e8 [ 1909.318175][ T33] [] wg_packet_handshake_send_worker+0x1e/0x30 [ 1909.320303][ T33] [] process_one_work+0x930/0x1e14 [ 1909.375717][ T33] [] worker_thread+0x540/0xcbc [ 1909.378393][ T33] [] kthread+0x37c/0x778 [ 1909.380627][ T33] [] ret_from_fork_kernel+0x2a/0xbbc [ 1909.504104][ T33] [] ret_from_fork_kernel_asm+0x16/0x18 [ 1909.508293][ T33] [ 1909.508293][ T33] Showing all locks held in the system: [ 1909.511445][ T33] 2 locks held by kworker/1:0/24: [ 1909.603848][ T33] 1 lock held by khungtaskd/33: [ 1909.604970][ T33] #0: ffffffff885ec0a0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2a/0x1a8 [ 1909.608936][ T33] 5 locks held by kworker/0:2/806: [ 1909.610578][ T33] 1 lock held by syslogd/3013: [ 1909.686608][ T33] 2 locks held by getty/3163: [ 1909.689099][ T33] #0: ffffaf801921e0a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3a/0x48 [ 1909.759256][ T33] #1: ffff8f800008e2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x3be/0x1324 [ 1909.856698][ T33] 2 locks held by syz-executor/3195: [ 1909.859098][ T33] 2 locks held by kworker/1:1/3204: [ 1909.861342][ T33] 4 locks held by kworker/u8:4/3212: [ 1909.956729][ T33] #0: ffffaf801bcee148 ((wq_completion)wg-kex-wg1){+.+.}-{0:0}, at: process_one_work+0x814/0x1e14 [ 1910.114717][ T33] #1: ffff8f80099b7b70 ((work_completion)(&peer->transmit_handshake_work)){+.+.}-{0:0}, at: process_one_work+0x83c/0x1e14 [ 1910.120550][ T33] #2: ffffaf801a809308 (&wg->static_identity.lock){++++}-{4:4}, at: wg_noise_handshake_create_initiation+0xe4/0x5e4 [ 1910.198853][ T33] #3: ffffaf80313020f0 (&handshake->lock){++++}-{4:4}, at: wg_noise_handshake_create_initiation+0xee/0x5e4 [ 1910.525145][ T33] 3 locks held by kworker/u8:5/3297: [ 1910.527088][ T33] #0: ffffaf801bcee148 ((wq_completion)wg-kex-wg1){+.+.}-{0:0}, at: process_one_work+0x814/0x1e14 [ 1910.628487][ T33] #1: ffff8f8009b17b70 ((work_completion)(&peer->clear_peer_work)){+.+.}-{0:0}, at: process_one_work+0x83c/0x1e14 [ 1910.788618][ T33] #2: ffffaf80313020f0 (&handshake->lock){++++}-{4:4}, at: wg_noise_handshake_clear+0x26/0xb8 [ 1910.906541][ T33] 2 locks held by kworker/1:3/3675: [ 1910.908167][ T33] 3 locks held by kworker/u8:7/3769: [ 1910.909702][ T33] 4 locks held by kworker/0:4/3782: [ 1910.911146][ T33] #0: ffffaf8022115d48 ((wq_completion)wg-kex-wg1#2){+.+.}-{0:0}, at: process_one_work+0x814/0x1e14 [ 1911.070866][ T33] #1: ffff8f800a397b70 ((work_completion)(&({ do { const void *__vpp_verify = (typeof((worker) + 0))((void *)0); (void)__vpp_verify; } while (0); ({ unsigned long __ptr; __asm__ ("" : "=r"(__ptr) : "0"((__typeof_unqual__(*((worker))) *)(( unsigned long)((worker))))); (typeof((__typeof_unqual__(*((worker))) *)(( unsigned long)((worker))))) (__ptr + (((__per_cpu_offset[(cpu)])))); }); })->work)){+.+.}-{0:0}, at: process_one_work+0x83c/0x1e14 [ 1911.310918][ T33] #2: ffffaf801a809308 (&wg->static_identity.lock){++++}-{4:4}, at: wg_noise_handshake_consume_initiation+0x138/0x8f8 [ 1911.458063][ T33] #3: ffffaf80313020f0 (&handshake->lock){++++}-{4:4}, at: wg_noise_handshake_consume_initiation+0x4bc/0x8f8 [ 1911.567066][ T33] 4 locks held by kworker/1:4/3827: [ 1911.568639][ T33] 2 locks held by kworker/0:6/3828: [ 1911.570164][ T33] 2 locks held by kworker/1:5/3829: [ 1911.663290][ T33] 1 lock held by kworker/1:6/3839: [ 1911.665260][ T33] 2 locks held by kworker/1:8/3853: [ 1911.666725][ T33] 2 locks held by kworker/1:10/3908: [ 1911.668201][ T33] 2 locks held by kworker/u8:0/3911: [ 1911.669706][ T33] 2 locks held by kworker/0:5/3931: [ 1911.671157][ T33] 3 locks held by kworker/u8:1/3960: [ 1911.776249][ T33] 2 locks held by syz.0.70/4003: [ 1911.796120][ T33] [ 1911.799145][ T33] ============================================= [ 1911.799145][ T33] [ 1911.925389][ T33] NMI backtrace for cpu 0 [ 1911.926244][ T33] CPU: 0 UID: 0 PID: 33 Comm: khungtaskd Tainted: G L syzkaller #0 PREEMPT [ 1911.926841][ T33] Tainted: [L]=SOFTLOCKUP [ 1911.927006][ T33] Hardware name: riscv-virtio,qemu (DT) [ 1911.927252][ T33] Call Trace: [ 1911.927381][ T33] [] dump_backtrace+0x2e/0x3c [ 1911.927929][ T33] [] show_stack+0x30/0x3c [ 1911.928319][ T33] [] dump_stack_lvl+0x114/0x1ac [ 1911.929007][ T33] [] dump_stack+0x1c/0x28 [ 1911.929543][ T33] [] nmi_cpu_backtrace+0x25e/0x3b0 [ 1911.930077][ T33] [] nmi_trigger_cpumask_backtrace+0x29e/0x460 [ 1911.930608][ T33] [] arch_trigger_cpumask_backtrace+0x2c/0x3c [ 1911.931260][ T33] [] sys_info+0x20c/0x254 [ 1911.931571][ T33] [] watchdog+0xb44/0x1184 [ 1911.931943][ T33] [] kthread+0x37c/0x778 [ 1911.932356][ T33] [] ret_from_fork_kernel+0x2a/0xbbc [ 1911.932788][ T33] [] ret_from_fork_kernel_asm+0x16/0x18 [ 1911.947303][ T33] Sending NMI from CPU 0 to CPUs 1: [ 1911.949856][ C1] NMI backtrace for cpu 1 [ 1911.950659][ C1] CPU: 1 UID: 0 PID: 3769 Comm: kworker/u8:7 Tainted: G L syzkaller #0 PREEMPT [ 1911.951486][ C1] Tainted: [L]=SOFTLOCKUP [ 1911.951710][ C1] Hardware name: riscv-virtio,qemu (DT) [ 1911.952078][ C1] Workqueue: events_unbound nsim_dev_trap_report_work [ 1911.953174][ C1] epc : __local_bh_enable_ip+0x222/0x588 [ 1911.954079][ C1] ra : __local_bh_enable_ip+0x21e/0x588 [ 1911.954977][ C1] epc : ffffffff80165826 ra : ffffffff80165822 sp : ffff8f8000016aa0 [ 1911.955433][ C1] gp : ffffffff89f9af80 tp : ffffaf8030c0cf80 t0 : ffff8f8000016ee8 [ 1911.955885][ C1] t1 : ffffffff8007a304 t2 : ffff8f80000166c0 s0 : ffff8f8000016af0 [ 1911.956324][ C1] s1 : 0000000000000103 a0 : 0000000000000001 a1 : ffffffff87ef7658 [ 1911.956816][ C1] a2 : 0000000000000003 a3 : 0000000000000001 a4 : 0000000000001000 [ 1911.957259][ C1] a5 : 000000000008cac6 a6 : 0000000000000000 a7 : 0000000041b58ab3 [ 1911.957715][ C1] s2 : ffffaf8030c0cf80 s3 : ffffffff85a70f4c s4 : 0000000000000001 [ 1911.958144][ C1] s5 : ffffffff913696a8 s6 : 1ffff5f0061819f1 s7 : 0000000000000001 [ 1911.958602][ C1] s8 : ffffaf8013abdaa0 s9 : ffffaf8030b53700 s10: ffff8f8000016d20 [ 1911.959058][ C1] s11: ffffffff877a9180 t3 : ffffffff87d88058 t4 : 0000000000001fff [ 1911.959504][ C1] t5 : 00000000000000c8 t6 : 0000000000000002 ssp : 0000000000000000 [ 1911.959917][ C1] status: 0000000200000120 badaddr: 0000000000000000 cause: 8000000000000001 [ 1911.960420][ C1] [] __local_bh_enable_ip+0x222/0x588 [ 1911.961492][ C1] [] ipt_do_table+0xda0/0x1b5c [ 1911.962300][ C1] [] iptable_mangle_hook+0x5e/0x400 [ 1911.963135][ C1] [] nf_hook_slow+0xac/0x208 [ 1911.963833][ C1] [] ip_output+0x5a0/0x884 [ 1911.964565][ C1] [] ip_local_out+0xa6/0x17c [ 1911.965321][ C1] [] synproxy_send_tcp.isra.0+0x3f8/0x5dc [ 1911.966272][ C1] [] synproxy_send_client_synack+0x604/0x868 [ 1911.966873][ C1] [] nft_synproxy_do_eval+0x84e/0xa5c [ 1911.967515][ C1] [] nft_synproxy_eval+0x28/0x50 [ 1911.968095][ C1] [] nft_do_chain+0x30a/0x149c [ 1911.969063][ C1] [] nft_do_chain_inet+0xfe/0x328 [ 1911.969668][ C1] [] nf_hook_slow+0xac/0x208 [ 1911.970341][ C1] [] ip_local_deliver+0x2d2/0x55c [ 1911.971025][ C1] [] ip_rcv_finish+0x1ac/0x2a4 [ 1911.971699][ C1] [] ip_rcv+0xd2/0x458 [ 1911.972326][ C1] [] __netif_receive_skb_one_core+0x106/0x170 [ 1911.973196][ C1] [] __netif_receive_skb+0x28/0x12c [ 1911.973987][ C1] [] process_backlog+0x58e/0x1be0 [ 1911.974766][ C1] [] __napi_poll.constprop.0+0x9e/0x4a8 [ 1911.975572][ C1] [] net_rx_action+0x9ea/0xde4 [ 1911.976343][ C1] [] handle_softirqs+0x442/0x1198 [ 1911.977545][ C1] [] __irq_exit_rcu+0x2de/0x534 [ 1911.978389][ C1] [] irq_exit_rcu+0x10/0xf4 [ 1911.979222][ C1] [] handle_riscv_irq+0x40/0x4c [ 1911.980075][ C1] [] call_on_irq_stack+0x32/0x40 [ 1912.436267][ T33] Kernel panic - not syncing: hung_task: blocked tasks [ 1912.437843][ T33] CPU: 0 UID: 0 PID: 33 Comm: khungtaskd Tainted: G L syzkaller #0 PREEMPT [ 1912.438876][ T33] Tainted: [L]=SOFTLOCKUP [ 1912.439393][ T33] Hardware name: riscv-virtio,qemu (DT) [ 1912.440023][ T33] Call Trace: [ 1912.440531][ T33] [] dump_backtrace+0x2e/0x3c [ 1912.441534][ T33] [] show_stack+0x30/0x3c [ 1912.442849][ T33] [] dump_stack_lvl+0x114/0x1ac [ 1912.445334][ T33] [] dump_stack+0x1c/0x28 [ 1912.447974][ T33] [] vpanic+0x274/0x684 [ 1912.449020][ T33] [] panic+0xa0/0xa4 [ 1912.449760][ T33] [] watchdog+0xb74/0x1184 [ 1912.450594][ T33] [] kthread+0x37c/0x778 [ 1912.451426][ T33] [] ret_from_fork_kernel+0x2a/0xbbc [ 1912.452654][ T33] [] ret_from_fork_kernel_asm+0x16/0x18 [ 1912.454028][ T33] SMP: stopping secondary CPUs [ 1912.456736][ T33] Rebooting in 86400 seconds..