[ 32.870696][ T42] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9
[ 32.877848][ T42] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4
[ 32.884899][ T42] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3
[ 32.891992][ T42] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2
[ 32.957663][ T1518] chnl_net:caif_netlink_parms(): no params data found
[ 33.519694][ T1518] 8021q: adding VLAN 0 to HW filter on device bond0
[ 33.895096][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
[ 33.902492][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
[ 33.910500][ T1518] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 34.712773][ T345] bond0 (unregistering): Released all slaves
Warning: Permanently added '10.128.1.110' (ED25519) to the list of known hosts.
2026/06/12 07:21:57 parsed 1 programs
Setting up swapspace version 1, size = 127995904 bytes
[ 43.025913][ T1956] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k
[ 43.489522][ T1978] chnl_net:caif_netlink_parms(): no params data found
[ 44.050707][ T1978] 8021q: adding VLAN 0 to HW filter on device bond0
[ 44.419146][ T1139] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
[ 44.426536][ T1139] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
[ 44.434609][ T1978] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 45.110881][ T1474] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1
[ 45.117911][ T1474] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9
[ 45.124950][ T1474] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9
[ 45.132149][ T1474] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4
[ 45.139445][ T1474] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3
[ 45.146445][ T1474] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2
[ 45.215272][ T1139] bond0 (unregistering): Released all slaves
2026/06/12 07:21:59 executed programs: 0
[ 45.666951][ T42] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1
[ 45.674043][ T42] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9
[ 45.681121][ T42] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9
[ 45.688333][ T42] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4
[ 45.695406][ T42] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3
[ 45.702574][ T42] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2
[ 45.769377][ T2446] chnl_net:caif_netlink_parms(): no params data found
[ 46.327873][ T2446] 8021q: adding VLAN 0 to HW filter on device bond0
[ 46.702288][ T345] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
[ 46.709754][ T345] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
[ 46.717970][ T2446] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 47.417924][ T2846] nbd0: detected capacity change from 0 to 549764202496
[ 47.757373][ T1474] Bluetooth: hci0: command 0x0409 tx timeout
[ 48.226530][ T42] block nbd0: Receive control failed (result -104)
[ 49.827340][ T42] Bluetooth: hci0: command 0x041b tx timeout
[ 51.917328][ T42] Bluetooth: hci0: command 0x040f tx timeout
[ 53.987329][ T42] Bluetooth: hci0: command 0x0419 tx timeout
[ 62.415651][ T42] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1
[ 62.422866][ T42] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9
[ 62.429932][ T42] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9
[ 62.437231][ T42] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4
[ 62.444346][ T42] Bluetooth: hci1: unexpected cc 0x0c25 length: 249 > 3
[ 62.451408][ T42] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2
[ 62.516886][ T2848] chnl_net:caif_netlink_parms(): no params data found
[ 63.072568][ T2848] 8021q: adding VLAN 0 to HW filter on device bond0
[ 63.446164][ T1139] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
[ 63.453710][ T1139] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
[ 63.461812][ T2848] 8021q: adding VLAN 0 to HW filter on device batadv0
2026/06/12 07:22:18 executed programs: 3
[ 64.159096][ T3249] nbd1: detected capacity change from 0 to 549764202496
[ 64.467316][ T1474] Bluetooth: hci1: command 0x0409 tx timeout
[ 64.980945][ T42] block nbd1: Receive control failed (result -104)
[ 66.557275][ T42] Bluetooth: hci1: command 0x041b tx timeout
[ 68.627340][ T42] Bluetooth: hci1: command 0x040f tx timeout
[ 70.707322][ T42] Bluetooth: hci1: command 0x0419 tx timeout
[ 77.827361][ T464] block nbd0: Possible stuck request ffff888101aa0000: control (read@0,4096B). Runtime 30 seconds
[ 79.170763][ T42] Bluetooth: hci2: unexpected cc 0x0c03 length: 249 > 1
[ 79.178304][ T42] Bluetooth: hci2: unexpected cc 0x1003 length: 249 > 9
[ 79.185354][ T42] Bluetooth: hci2: unexpected cc 0x1001 length: 249 > 9
[ 79.192563][ T42] Bluetooth: hci2: unexpected cc 0x0c23 length: 249 > 4
[ 79.199791][ T42] Bluetooth: hci2: unexpected cc 0x0c25 length: 249 > 3
[ 79.206789][ T42] Bluetooth: hci2: unexpected cc 0x0c38 length: 249 > 2
[ 79.272163][ T3251] chnl_net:caif_netlink_parms(): no params data found
[ 79.830565][ T3251] 8021q: adding VLAN 0 to HW filter on device bond0
[ 80.202120][ T345] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
[ 80.209455][ T345] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
[ 80.217654][ T3251] 8021q: adding VLAN 0 to HW filter on device batadv0
2026/06/12 07:22:35 executed programs: 4
[ 80.937505][ T3652] nbd2: detected capacity change from 0 to 549764202496
[ 81.267322][ T1474] Bluetooth: hci2: command 0x0409 tx timeout
[ 81.737187][ T42] block nbd2: Receive control failed (result -104)
[ 83.357319][ T42] Bluetooth: hci2: command 0x041b tx timeout
[ 85.427324][ T42] Bluetooth: hci2: command 0x040f tx timeout
[ 87.507361][ T1474] Bluetooth: hci2: command 0x0419 tx timeout
[ 94.467380][ T464] block nbd1: Possible stuck request ffff888101ad0000: control (read@0,4096B). Runtime 30 seconds
[ 95.923614][ T1474] Bluetooth: hci3: unexpected cc 0x0c03 length: 249 > 1
[ 95.930698][ T1474] Bluetooth: hci3: unexpected cc 0x1003 length: 249 > 9
[ 95.937786][ T1474] Bluetooth: hci3: unexpected cc 0x1001 length: 249 > 9
[ 95.944947][ T1474] Bluetooth: hci3: unexpected cc 0x0c23 length: 249 > 4
[ 95.952092][ T1474] Bluetooth: hci3: unexpected cc 0x0c25 length: 249 > 3
[ 95.959100][ T1474] Bluetooth: hci3: unexpected cc 0x0c38 length: 249 > 2
[ 96.025640][ T3654] chnl_net:caif_netlink_parms(): no params data found
[ 96.590915][ T3654] 8021q: adding VLAN 0 to HW filter on device bond0
[ 96.960866][ T1139] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
[ 96.968256][ T1139] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
[ 96.976270][ T3654] 8021q: adding VLAN 0 to HW filter on device batadv0
2026/06/12 07:22:51 executed programs: 5
[ 97.688399][ T4055] nbd3: detected capacity change from 0 to 549764202496
[ 97.987276][ T42] Bluetooth: hci3: command 0x0409 tx timeout
[ 98.496982][ T1474] block nbd3: Receive control failed (result -104)
[ 100.067383][ T1474] Bluetooth: hci3: command 0x041b tx timeout
[ 102.147333][ T1474] Bluetooth: hci3: command 0x040f tx timeout
[ 104.227361][ T1474] Bluetooth: hci3: command 0x0419 tx timeout
[ 107.907394][ T464] block nbd0: Possible stuck request ffff888101aa0000: control (read@0,4096B). Runtime 60 seconds
[ 109.706923][ T879] udevd[879]: worker [1974] /devices/virtual/block/nbd0 is taking a long time
[ 111.107388][ T464] block nbd2: Possible stuck request ffff888101eb8000: control (read@0,4096B). Runtime 30 seconds
[ 112.683645][ T1474] Bluetooth: hci4: unexpected cc 0x0c03 length: 249 > 1
[ 112.690918][ T1474] Bluetooth: hci4: unexpected cc 0x1003 length: 249 > 9
[ 112.698757][ T1474] Bluetooth: hci4: unexpected cc 0x1001 length: 249 > 9
[ 112.705938][ T1474] Bluetooth: hci4: unexpected cc 0x0c23 length: 249 > 4
[ 112.713073][ T1474] Bluetooth: hci4: unexpected cc 0x0c25 length: 249 > 3
[ 112.720109][ T1474] Bluetooth: hci4: unexpected cc 0x0c38 length: 249 > 2
[ 112.786384][ T4057] chnl_net:caif_netlink_parms(): no params data found
[ 113.359098][ T4057] 8021q: adding VLAN 0 to HW filter on device bond0
[ 113.735691][ T1139] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
[ 113.743011][ T1139] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
[ 113.751146][ T4057] 8021q: adding VLAN 0 to HW filter on device batadv0
2026/06/12 07:23:08 executed programs: 6
[ 114.458086][ T4458] nbd4: detected capacity change from 0 to 549764202496
[ 114.797325][ T42] Bluetooth: hci4: command 0x0409 tx timeout
[ 115.276625][ T1474] block nbd4: Receive control failed (result -104)
[ 116.867332][ T1474] Bluetooth: hci4: command 0x041b tx timeout
[ 118.947358][ T1474] Bluetooth: hci4: command 0x040f tx timeout
[ 121.027355][ T1474] Bluetooth: hci4: command 0x0419 tx timeout
[ 124.547437][ T464] block nbd1: Possible stuck request ffff888101ad0000: control (read@0,4096B). Runtime 60 seconds
[ 126.477446][ T879] udevd[879]: worker [2850] /devices/virtual/block/nbd1 is taking a long time
[ 127.747571][ T46] block nbd3: Possible stuck request ffff888101ef8000: control (read@0,4096B). Runtime 30 seconds
[ 129.462096][ T1474] Bluetooth: hci5: unexpected cc 0x0c03 length: 249 > 1
[ 129.469214][ T1474] Bluetooth: hci5: unexpected cc 0x1003 length: 249 > 9
[ 129.476236][ T1474] Bluetooth: hci5: unexpected cc 0x1001 length: 249 > 9
[ 129.483703][ T1474] Bluetooth: hci5: unexpected cc 0x0c23 length: 249 > 4
[ 129.490819][ T1474] Bluetooth: hci5: unexpected cc 0x0c25 length: 249 > 3
[ 129.497907][ T1474] Bluetooth: hci5: unexpected cc 0x0c38 length: 249 > 2
[ 129.566075][ T4460] chnl_net:caif_netlink_parms(): no params data found
[ 130.139992][ T4460] 8021q: adding VLAN 0 to HW filter on device bond0
[ 130.526293][ T38] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
[ 130.533786][ T38] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
[ 130.541827][ T4460] 8021q: adding VLAN 0 to HW filter on device batadv0
2026/06/12 07:23:25 executed programs: 7
[ 131.268392][ T4861] nbd5: detected capacity change from 0 to 549764202496
[ 131.507293][ T42] Bluetooth: hci5: command 0x0409 tx timeout
[ 132.070521][ T1474] block nbd5: Receive control failed (result -104)
[ 133.587334][ T1474] Bluetooth: hci5: command 0x041b tx timeout
[ 135.667361][ T42] Bluetooth: hci5: command 0x040f tx timeout
[ 137.747354][ T1474] Bluetooth: hci5: command 0x0419 tx timeout
[ 137.987496][ T464] block nbd0: Possible stuck request ffff888101aa0000: control (read@0,4096B). Runtime 90 seconds
[ 141.187382][ T464] block nbd2: Possible stuck request ffff888101eb8000: control (read@0,4096B). Runtime 60 seconds
[ 143.287355][ T879] udevd[879]: worker [3254] /devices/virtual/block/nbd2 is taking a long time
[ 145.027635][ T46] block nbd4: Possible stuck request ffff8881022a8000: control (read@0,4096B). Runtime 30 seconds
[ 146.260247][ T1474] Bluetooth: hci6: unexpected cc 0x0c03 length: 249 > 1
[ 146.267365][ T1474] Bluetooth: hci6: unexpected cc 0x1003 length: 249 > 9
[ 146.274415][ T1474] Bluetooth: hci6: unexpected cc 0x1001 length: 249 > 9
[ 146.281609][ T1474] Bluetooth: hci6: unexpected cc 0x0c23 length: 249 > 4
[ 146.288676][ T1474] Bluetooth: hci6: unexpected cc 0x0c25 length: 249 > 3
[ 146.295670][ T1474] Bluetooth: hci6: unexpected cc 0x0c38 length: 249 > 2
[ 146.362169][ T4863] chnl_net:caif_netlink_parms(): no params data found
[ 146.939029][ T4863] 8021q: adding VLAN 0 to HW filter on device bond0
[ 147.325502][ T38] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
[ 147.332883][ T38] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
[ 147.342147][ T4863] 8021q: adding VLAN 0 to HW filter on device batadv0
2026/06/12 07:23:42 executed programs: 8
[ 148.067626][ T5264] nbd6: detected capacity change from 0 to 549764202496
[ 148.307302][ T42] Bluetooth: hci6: command 0x0409 tx timeout
[ 148.868747][ T1474] block nbd6: Receive control failed (result -104)
[ 150.387286][ T1474] Bluetooth: hci6: command 0x041b tx timeout
[ 152.467306][ T1474] Bluetooth: hci6: command 0x040f tx timeout
[ 154.547352][ T42] Bluetooth: hci6: command 0x0419 tx timeout
[ 154.627396][ T464] block nbd1: Possible stuck request ffff888101ad0000: control (read@0,4096B). Runtime 90 seconds
[ 157.827569][ T46] block nbd3: Possible stuck request ffff888101ef8000: control (read@0,4096B). Runtime 60 seconds
[ 160.086869][ T879] udevd[879]: worker [3656] /devices/virtual/block/nbd3 is taking a long time
[ 161.667645][ T46] block nbd5: Possible stuck request ffff888102688000: control (read@0,4096B). Runtime 30 seconds
[ 163.055768][ T42] Bluetooth: hci7: unexpected cc 0x0c03 length: 249 > 1
[ 163.062861][ T42] Bluetooth: hci7: unexpected cc 0x1003 length: 249 > 9
[ 163.069942][ T42] Bluetooth: hci7: unexpected cc 0x1001 length: 249 > 9
[ 163.077159][ T42] Bluetooth: hci7: unexpected cc 0x0c23 length: 249 > 4
[ 163.084360][ T42] Bluetooth: hci7: unexpected cc 0x0c25 length: 249 > 3
[ 163.092506][ T42] Bluetooth: hci7: unexpected cc 0x0c38 length: 249 > 2
[ 163.157992][ T5266] chnl_net:caif_netlink_parms(): no params data found
[ 163.726916][ T5266] 8021q: adding VLAN 0 to HW filter on device bond0
[ 164.110329][ T1139] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
[ 164.117817][ T1139] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
[ 164.125989][ T5266] 8021q: adding VLAN 0 to HW filter on device batadv0
2026/06/12 07:23:59 executed programs: 9
[ 164.887431][ T5667] nbd7: detected capacity change from 0 to 549764202496
[ 165.107327][ T1474] Bluetooth: hci7: command 0x0409 tx timeout
[ 165.661128][ T42] block nbd7: Receive control failed (result -104)
[ 167.187301][ T42] Bluetooth: hci7: command 0x041b tx timeout
[ 168.067346][ T464] block nbd0: Possible stuck request ffff888101aa0000: control (read@0,4096B). Runtime 120 seconds
[ 169.267322][ T1474] Bluetooth: hci7: command 0x040f tx timeout
[ 169.507316][ T1474] Bluetooth: hci0: command 0x0406 tx timeout
[ 171.267550][ T464] block nbd2: Possible stuck request ffff888101eb8000: control (read@0,4096B). Runtime 90 seconds
[ 171.347342][ T42] Bluetooth: hci7: command 0x0419 tx timeout
[ 175.107501][ T46] block nbd4: Possible stuck request ffff8881022a8000: control (read@0,4096B). Runtime 60 seconds
[ 176.906824][ T879] udevd[879]: worker [4059] /devices/virtual/block/nbd4 is taking a long time
[ 178.307501][ T46] block nbd6: Possible stuck request ffff8881026a0000: control (read@0,4096B). Runtime 30 seconds
[ 179.846475][ T42] Bluetooth: hci8: unexpected cc 0x0c03 length: 249 > 1
[ 179.854810][ T42] Bluetooth: hci8: unexpected cc 0x1003 length: 249 > 9
[ 179.861898][ T42] Bluetooth: hci8: unexpected cc 0x1001 length: 249 > 9
[ 179.870394][ T42] Bluetooth: hci8: unexpected cc 0x0c23 length: 249 > 4
[ 179.877502][ T42] Bluetooth: hci8: unexpected cc 0x0c25 length: 249 > 3
[ 179.884516][ T42] Bluetooth: hci8: unexpected cc 0x0c38 length: 249 > 2
[ 179.951079][ T5670] chnl_net:caif_netlink_parms(): no params data found
[ 180.525130][ T5670] 8021q: adding VLAN 0 to HW filter on device bond0
[ 180.913051][ T38] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
[ 180.920504][ T38] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
[ 180.929139][ T5670] 8021q: adding VLAN 0 to HW filter on device batadv0
2026/06/12 07:24:15 executed programs: 10
[ 181.657679][ T6071] nbd8: detected capacity change from 0 to 549764202496
[ 181.907301][ T1474] Bluetooth: hci8: command 0x0409 tx timeout
[ 182.458180][ T42] block nbd8: Receive control failed (result -104)
[ 183.997335][ T42] Bluetooth: hci8: command 0x041b tx timeout
[ 184.717424][ T464] block nbd1: Possible stuck request ffff888101ad0000: control (read@0,4096B). Runtime 120 seconds
[ 184.867343][ T42] Bluetooth: hci1: command 0x0406 tx timeout
[ 186.067317][ T1474] Bluetooth: hci8: command 0x040f tx timeout
[ 187.927349][ T46] block nbd3: Possible stuck request ffff888101ef8000: control (read@0,4096B). Runtime 90 seconds
[ 188.147366][ T1474] Bluetooth: hci8: command 0x0419 tx timeout
[ 191.747516][ T46] block nbd5: Possible stuck request ffff888102688000: control (read@0,4096B). Runtime 60 seconds
[ 193.667355][ T28] INFO: task syz.2.17:2846 blocked for more than 143 seconds.
[ 193.674819][ T28] Not tainted syzkaller #0
[ 193.677123][ T879] udevd[879]: worker [4462] /devices/virtual/block/nbd5 is taking a long time
[ 193.679740][ T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 193.679742][ T28] task:syz.2.17 state:D stack:13456 pid:2846 ppid:2446 flags:0x00004004
[ 193.679756][ T28] Call Trace:
[ 193.709672][ T28]
[ 193.712603][ T28] __schedule+0x55b/0x830
[ 193.716907][ T28] ? sync_bdevs+0xda/0x150
[ 193.721321][ T28] schedule+0x50/0xb0
[ 193.725273][ T28] schedule_preempt_disabled+0x2e/0x40
[ 193.730719][ T28] __mutex_lock+0x44c/0x9b0
[ 193.735201][ T28] sync_bdevs+0xda/0x150
[ 193.739440][ T28] ksys_sync+0x60/0xa0
[ 193.743482][ T28] __ia32_sys_sync+0x5/0x10
[ 193.747968][ T28] do_syscall_64+0x4c/0xa0
[ 193.752358][ T28] ? clear_bhb_loop+0x60/0xb0
[ 193.756997][ T28] ? clear_bhb_loop+0x60/0xb0
[ 193.761652][ T28] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 193.767527][ T28] RIP: 0033:0x7fd158b7aef9
[ 193.771930][ T28] RSP: 002b:00007fd1581de028 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2
[ 193.780326][ T28] RAX: ffffffffffffffda RBX: 00007fd158de5fa0 RCX: 00007fd158b7aef9
[ 193.788460][ T28] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 193.796408][ T28] RBP: 00007fd158de5fa0 R08: 0000000000000000 R09: 0000000000000000
[ 193.804376][ T28] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 193.812349][ T28] R13: 00007fd158de6038 R14: 00007fd158de5fa0 R15: 00007fff2d69d558
[ 193.820308][ T28]
[ 193.823329][ T28]
[ 193.823329][ T28] Showing all locks held in the system:
[ 193.831064][ T28] 1 lock held by rcu_tasks_kthre/12:
[ 193.836315][ T28] #0: ffffffff8357af28 (rcu_tasks.tasks_gp_mutex){....}-{3:3}, at: rcu_tasks_kthread+0x97/0x4c0
[ 193.846810][ T28] 1 lock held by rcu_tasks_trace/13:
[ 193.852079][ T28] #0: ffffffff8357b550 (rcu_tasks_trace.tasks_gp_mutex){....}-{3:3}, at: rcu_tasks_kthread+0x97/0x4c0
[ 193.863096][ T28] 1 lock held by khungtaskd/28:
[ 193.867928][ T28] #0: ffffffff8357ace8 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x2a/0xf0
[ 193.877648][ T28] 2 locks held by getty/955:
[ 193.882203][ T28] #0: ffff8881001ac898 (&tty->ldisc_sem){....}-{0:0}, at: tty_ldisc_ref_wait+0x1c/0x40
[ 193.891901][ T28] #1: ffffc900021e32f0 (&ldata->atomic_read_lock){....}-{3:3}, at: n_tty_read+0x19e/0x6d0
[ 193.901862][ T28] 1 lock held by udevd/1974:
[ 193.906413][ T28] #0: ffff888100fcfcc8 (&disk->open_mutex){....}-{3:3}, at: blkdev_get_by_dev+0x8c/0x2e0
[ 193.916290][ T28] 1 lock held by syz.2.17/2846:
[ 193.921118][ T28] #0: ffff888100fcfcc8 (&disk->open_mutex){....}-{3:3}, at: sync_bdevs+0xda/0x150
[ 193.930392][ T28] 1 lock held by udevd/2850:
[ 193.934949][ T28] #0: ffff8881016da4c8 (&disk->open_mutex){....}-{3:3}, at: blkdev_get_by_dev+0x8c/0x2e0
[ 193.944841][ T28] 1 lock held by syz.3.18/3249:
[ 193.949667][ T28] #0: ffff8881016da4c8 (&disk->open_mutex){....}-{3:3}, at: sync_bdevs+0xda/0x150
[ 193.958931][ T28] 1 lock held by udevd/3254:
[ 193.963491][ T28] #0: ffff8881016dccc8 (&disk->open_mutex){....}-{3:3}, at: blkdev_get_by_dev+0x8c/0x2e0
[ 193.973391][ T28] 1 lock held by syz.4.19/3652:
[ 193.978215][ T28] #0: ffff8881016dccc8 (&disk->open_mutex){....}-{3:3}, at: sync_bdevs+0xda/0x150
[ 193.987508][ T28] 1 lock held by udevd/3656:
[ 193.992075][ T28] #0: ffff8881016df4c8 (&disk->open_mutex){....}-{3:3}, at: blkdev_get_by_dev+0x8c/0x2e0
[ 194.002045][ T28] 1 lock held by syz.5.20/4055:
[ 194.006865][ T28] #0: ffff8881016df4c8 (&disk->open_mutex){....}-{3:3}, at: sync_bdevs+0xda/0x150
[ 194.016135][ T28] 1 lock held by udevd/4059:
[ 194.020703][ T28] #0: ffff8881016e1cc8 (&disk->open_mutex){....}-{3:3}, at: blkdev_get_by_dev+0x8c/0x2e0
[ 194.030586][ T28] 1 lock held by syz.6.21/4458:
[ 194.035405][ T28] #0: ffff8881016e1cc8 (&disk->open_mutex){....}-{3:3}, at: sync_bdevs+0xda/0x150
[ 194.044671][ T28] 1 lock held by udevd/4462:
[ 194.049245][ T28] #0: ffff8881016e44c8 (&disk->open_mutex){....}-{3:3}, at: blkdev_get_by_dev+0x8c/0x2e0
[ 194.059165][ T28] 1 lock held by syz.7.22/4861:
[ 194.063983][ T28] #0: ffff8881016e44c8 (&disk->open_mutex){....}-{3:3}, at: sync_bdevs+0xda/0x150
[ 194.073262][ T28] 1 lock held by udevd/4866:
[ 194.077836][ T28] #0: ffff8881016e6cc8 (&disk->open_mutex){....}-{3:3}, at: blkdev_get_by_dev+0x8c/0x2e0
[ 194.087724][ T28] 1 lock held by syz.8.23/5264:
[ 194.092553][ T28] #0: ffff8881016e6cc8 (&disk->open_mutex){....}-{3:3}, at: sync_bdevs+0xda/0x150
[ 194.101820][ T28] 1 lock held by udevd/5268:
[ 194.106381][ T28] #0: ffff8881016f14c8 (&disk->open_mutex){....}-{3:3}, at: blkdev_get_by_dev+0x8c/0x2e0
[ 194.116254][ T28] 1 lock held by syz.9.24/5668:
[ 194.121257][ T28] #0: ffff8881016f14c8 (&disk->open_mutex){....}-{3:3}, at: sync_bdevs+0xda/0x150
[ 194.130528][ T28] 1 lock held by udevd/5672:
[ 194.135171][ T28] #0: ffff8881016f3cc8 (&disk->open_mutex){....}-{3:3}, at: blkdev_get_by_dev+0x8c/0x2e0
[ 194.145045][ T28] 1 lock held by syz.0.25/6071:
[ 194.149893][ T28] #0: ffff8881016f3cc8 (&disk->open_mutex){....}-{3:3}, at: sync_bdevs+0xda/0x150
[ 194.159167][ T28]
[ 194.161467][ T28] =============================================
[ 194.161467][ T28]
[ 194.169862][ T28] NMI backtrace for cpu 0
[ 194.174164][ T28] CPU: 0 PID: 28 Comm: khungtaskd Not tainted syzkaller #0
[ 194.181321][ T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[ 194.191348][ T28] Call Trace:
[ 194.194780][ T28]
[ 194.197684][ T28] dump_stack_lvl+0x74/0xbb
[ 194.202160][ T28] nmi_cpu_backtrace+0x102/0x160
[ 194.207067][ T28] ? arch_trigger_cpumask_backtrace+0x10/0x10
[ 194.213215][ T28] nmi_trigger_cpumask_backtrace+0xa5/0x160
[ 194.219071][ T28] watchdog+0x533/0x560
[ 194.223197][ T28] ? watchdog+0xd2/0x560
[ 194.227403][ T28] ? hungtask_pm_notify+0x20/0x20
[ 194.232390][ T28] kthread+0xcc/0xe0
[ 194.236255][ T28] ? kthread_blkcg+0x30/0x30
[ 194.240810][ T28] ret_from_fork+0x1f/0x30
[ 194.245194][ T28]
[ 194.248219][ T28] Sending NMI from CPU 0 to CPUs 1:
[ 194.253417][ C1] NMI backtrace for cpu 1 skipped: idling at default_idle+0xb/0x10
[ 194.254401][ T28] Kernel panic - not syncing: hung_task: blocked tasks
[ 194.269191][ T28] Kernel Offset: disabled
[ 194.273493][ T28] Rebooting in 86400 seconds..