[ 428.111159][ T29] audit: type=1400 audit(427.420:135): avc: denied { write } for pid=3523 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=485 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 429.448511][ T29] audit: type=1400 audit(428.730:136): avc: denied { write } for pid=3527 comm="rm" name="hook-state" dev="tmpfs" ino=485 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 436.040712][ T29] audit: type=1400 audit(435.350:137): avc: denied { write } for pid=3533 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=485 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 437.335515][ T29] audit: type=1400 audit(436.640:138): avc: denied { write } for pid=3536 comm="rm" name="hook-state" dev="tmpfs" ino=485 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 439.149659][ T29] audit: type=1400 audit(438.460:139): avc: denied { write } for pid=3539 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=485 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 440.159694][ T29] audit: type=1400 audit(439.470:140): avc: denied { write } for pid=3542 comm="rm" name="hook-state" dev="tmpfs" ino=485 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 441.895347][ T29] audit: type=1400 audit(441.200:141): avc: denied { write } for pid=3545 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=485 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 442.908133][ T29] audit: type=1400 audit(442.210:142): avc: denied { write } for pid=3548 comm="rm" name="hook-state" dev="tmpfs" ino=485 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 498.586422][ T29] audit: type=1400 audit(497.890:143): avc: denied { write } for pid=3555 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=485 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 499.614582][ T29] audit: type=1400 audit(498.910:144): avc: denied { write } for pid=3558 comm="rm" name="hook-state" dev="tmpfs" ino=485 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 Warning: Permanently added '[localhost]:56851' (ED25519) to the list of known hosts. 1970/01/01 00:08:27 ignoring optional flag "type"="qemu" 1970/01/01 00:08:33 parsed 1 programs [ 514.370725][ T29] audit: type=1400 audit(513.670:145): avc: denied { unlink } for pid=3573 comm="syz-executor" name="swap-file" dev="vda" ino=1874 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=file permissive=1 trawcon="root:object_r:swapfile_t" [ 515.115810][ T3573] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k 1970/01/01 00:08:34 executed programs: 0 [ 515.710968][ T29] audit: type=1400 audit(515.010:146): avc: denied { mounton } for pid=3579 comm="syz-executor.0" path="/sys/fs/fuse/connections" dev="fusectl" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fusefs_t tclass=dir permissive=1 [ 523.815112][ T3579] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 523.852979][ T3579] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 527.496310][ T3579] hsr_slave_0: entered promiscuous mode [ 527.505768][ T3579] hsr_slave_1: entered promiscuous mode [ 530.268413][ T29] audit: type=1400 audit(529.570:147): avc: denied { write } for pid=3610 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=485 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 531.378231][ T29] audit: type=1400 audit(530.670:148): avc: denied { write } for pid=3615 comm="rm" name="hook-state" dev="tmpfs" ino=485 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 532.098753][ T3579] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 532.156170][ T3579] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 532.184167][ T3579] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 532.239298][ T3579] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 532.265894][ T3579] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 532.336141][ T3579] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 532.357755][ T3579] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 532.422564][ T3579] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 533.371324][ T29] audit: type=1400 audit(532.680:149): avc: denied { write } for pid=3621 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=485 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 534.491229][ T29] audit: type=1400 audit(533.800:150): avc: denied { write } for pid=3629 comm="rm" name="hook-state" dev="tmpfs" ino=485 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 536.259752][ T29] audit: type=1400 audit(535.560:151): avc: denied { write } for pid=3634 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=485 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 536.450078][ T3579] 8021q: adding VLAN 0 to HW filter on device bond0 [ 537.452415][ T29] audit: type=1400 audit(536.760:152): avc: denied { write } for pid=3638 comm="rm" name="hook-state" dev="tmpfs" ino=485 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 539.302064][ T29] audit: type=1400 audit(538.610:153): avc: denied { write } for pid=3644 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=485 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 540.645137][ T29] audit: type=1400 audit(539.950:154): avc: denied { write } for pid=3648 comm="rm" name="hook-state" dev="tmpfs" ino=485 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 543.170043][ T29] audit: type=1400 audit(542.480:155): avc: denied { write } for pid=3654 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=485 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 544.843515][ T29] audit: type=1400 audit(544.150:156): avc: denied { write } for pid=3660 comm="rm" name="hook-state" dev="tmpfs" ino=485 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 546.690419][ T29] audit: type=1400 audit(545.970:157): avc: denied { write } for pid=3665 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=485 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 547.734001][ T29] audit: type=1400 audit(547.040:158): avc: denied { write } for pid=3671 comm="rm" name="hook-state" dev="tmpfs" ino=485 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 549.384850][ T29] audit: type=1400 audit(548.690:159): avc: denied { write } for pid=3676 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=485 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 550.303007][ T29] audit: type=1400 audit(549.610:160): avc: denied { write } for pid=3681 comm="rm" name="hook-state" dev="tmpfs" ino=485 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 552.016514][ T29] audit: type=1400 audit(551.320:161): avc: denied { write } for pid=3686 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=485 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 552.223630][ T3579] veth0_vlan: entered promiscuous mode [ 552.338914][ T3579] veth1_vlan: entered promiscuous mode [ 552.703150][ T3579] veth0_macvtap: entered promiscuous mode [ 552.813021][ T3579] veth1_macvtap: entered promiscuous mode [ 553.372005][ T3424] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 553.373425][ T3424] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 553.374391][ T3424] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 553.374840][ T3424] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 553.414770][ T29] audit: type=1400 audit(552.720:162): avc: denied { write } for pid=3690 comm="rm" name="hook-state" dev="tmpfs" ino=485 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 555.452879][ T3699] nbd0: detected capacity change from 0 to 131072 [ 555.893128][ T29] audit: type=1400 audit(555.200:163): avc: denied { write } for pid=3696 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=485 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 556.883571][ T29] audit: type=1400 audit(556.190:164): avc: denied { write } for pid=3702 comm="rm" name="hook-state" dev="tmpfs" ino=485 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 557.069640][ T48] block nbd0: Receive control failed (result -104) [ 558.486384][ T29] audit: type=1400 audit(557.790:165): avc: denied { write } for pid=3704 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=485 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 559.453855][ T29] audit: type=1400 audit(558.760:166): avc: denied { write } for pid=3707 comm="rm" name="hook-state" dev="tmpfs" ino=485 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 561.024135][ T29] audit: type=1400 audit(560.330:167): avc: denied { write } for pid=3709 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=485 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 561.946201][ T29] audit: type=1400 audit(561.250:168): avc: denied { write } for pid=3712 comm="rm" name="hook-state" dev="tmpfs" ino=485 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 563.188510][ T29] audit: type=1400 audit(562.490:169): avc: denied { write } for pid=3714 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=485 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 564.208744][ T29] audit: type=1400 audit(563.520:170): avc: denied { write } for pid=3717 comm="rm" name="hook-state" dev="tmpfs" ino=485 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 565.715181][ T29] audit: type=1400 audit(565.020:171): avc: denied { write } for pid=3719 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=485 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 566.753282][ T29] audit: type=1400 audit(566.060:172): avc: denied { write } for pid=3722 comm="rm" name="hook-state" dev="tmpfs" ino=485 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 586.134675][ T1266] block nbd0: Possible stuck request 00000000e83ef513: control (read@0,4096B). Runtime 30 seconds [ 616.215382][ T1266] block nbd0: Possible stuck request 00000000e83ef513: control (read@0,4096B). Runtime 60 seconds [ 646.292009][ T1266] block nbd0: Possible stuck request 00000000e83ef513: control (read@0,4096B). Runtime 90 seconds [ 676.372621][ T1266] block nbd0: Possible stuck request 00000000e83ef513: control (read@0,4096B). Runtime 120 seconds [ 706.453047][ T1266] block nbd0: Possible stuck request 00000000e83ef513: control (read@0,4096B). Runtime 150 seconds 1970/01/01 00:11:48 executed programs: 1 [ 718.433270][ T3726] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 718.491153][ T3726] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 722.337998][ T3726] hsr_slave_0: entered promiscuous mode [ 722.368862][ T3726] hsr_slave_1: entered promiscuous mode [ 722.375945][ T3726] debugfs: 'hsr0' already exists in 'hsr' [ 722.383182][ T3726] Cannot create hsr debugfs directory [ 724.194431][ T3726] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 724.568942][ T3726] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 724.839119][ T3726] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 725.138123][ T3726] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 726.060507][ T3726] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 726.108800][ T3726] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 726.124996][ T3726] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 726.192506][ T3726] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 726.209690][ T3726] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 726.270166][ T3726] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 726.285757][ T3726] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 726.341038][ T3726] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 729.482817][ T3726] 8021q: adding VLAN 0 to HW filter on device bond0 [ 736.534572][ T1266] block nbd0: Possible stuck request 00000000e83ef513: control (read@0,4096B). Runtime 180 seconds [ 739.900931][ T3726] veth0_vlan: entered promiscuous mode [ 739.995301][ T3726] veth1_vlan: entered promiscuous mode [ 740.319412][ T3726] veth0_macvtap: entered promiscuous mode [ 740.354684][ T3726] veth1_macvtap: entered promiscuous mode [ 740.744173][ T2161] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 740.745974][ T2161] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 740.746574][ T2161] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 740.802183][ T12] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 766.624722][ T1266] block nbd0: Possible stuck request 00000000e83ef513: control (read@0,4096B). Runtime 210 seconds [ 796.705165][ T1266] block nbd0: Possible stuck request 00000000e83ef513: control (read@0,4096B). Runtime 240 seconds [ 821.905311][ T29] audit: type=1400 audit(821.210:173): avc: denied { write } for pid=3801 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=485 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 822.685029][ T29] audit: type=1400 audit(821.990:174): avc: denied { write } for pid=3804 comm="rm" name="hook-state" dev="tmpfs" ino=485 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 826.771768][ T1266] block nbd0: Possible stuck request 00000000e83ef513: control (read@0,4096B). Runtime 270 seconds [ 856.851699][ T1266] block nbd0: Possible stuck request 00000000e83ef513: control (read@0,4096B). Runtime 300 seconds [ 886.932580][ T1266] block nbd0: Possible stuck request 00000000e83ef513: control (read@0,4096B). Runtime 330 seconds 1970/01/01 00:14:55 executed programs: 2 [ 906.441226][ T3808] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 906.494337][ T3808] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 910.329140][ T3808] hsr_slave_0: entered promiscuous mode [ 910.335811][ T3808] hsr_slave_1: entered promiscuous mode [ 910.346182][ T3808] debugfs: 'hsr0' already exists in 'hsr' [ 910.352391][ T3808] Cannot create hsr debugfs directory [ 912.526040][ T3808] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 912.835467][ T3808] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 913.190780][ T3808] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 913.489890][ T3808] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 914.351785][ T3808] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 914.392079][ T3808] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 914.405830][ T3808] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 914.432185][ T3808] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 914.445847][ T3808] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 914.491503][ T3808] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 914.511842][ T3808] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 914.544964][ T3808] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 917.020895][ T1266] block nbd0: Possible stuck request 00000000e83ef513: control (read@0,4096B). Runtime 360 seconds [ 917.221513][ T3808] 8021q: adding VLAN 0 to HW filter on device bond0 [ 928.769849][ T3808] veth0_vlan: entered promiscuous mode [ 928.861533][ T3808] veth1_vlan: entered promiscuous mode [ 929.206393][ T3808] veth0_macvtap: entered promiscuous mode [ 929.254924][ T3808] veth1_macvtap: entered promiscuous mode [ 929.690310][ T2161] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 929.693705][ T2161] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 929.714863][ T2161] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 929.715640][ T2161] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 947.093228][ T1266] block nbd0: Possible stuck request 00000000e83ef513: control (read@0,4096B). Runtime 390 seconds [ 977.170976][ T1266] block nbd0: Possible stuck request 00000000e83ef513: control (read@0,4096B). Runtime 420 seconds [ 1005.331349][ T31] INFO: task udevd:3195 blocked for more than 430 seconds. [ 1005.334810][ T31] Not tainted syzkaller #0 [ 1005.335658][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1005.336206][ T31] task:udevd state:D stack:0 pid:3195 tgid:3195 ppid:1 task_flags:0x400140 flags:0x00000000 [ 1005.338615][ T31] Call trace: [ 1005.338935][ T31] __switch_to+0x20c/0x520 (T) [ 1005.340865][ T31] __schedule+0xf98/0x3500 [ 1005.341006][ T31] schedule+0xcc/0x294 [ 1005.341168][ T31] schedule_preempt_disabled+0x18/0x2c [ 1005.341316][ T31] __mutex_lock+0x7d8/0x153c [ 1005.341446][ T31] mutex_lock_nested+0x24/0x34 [ 1005.341594][ T31] bdev_open+0x2b8/0xa70 [ 1005.341730][ T31] blkdev_open+0x270/0x3f0 [ 1005.341853][ T31] do_dentry_open+0x37c/0xfe8 [ 1005.341986][ T31] vfs_open+0x5c/0x2fc [ 1005.342106][ T31] path_openat+0x1bac/0x3560 [ 1005.342264][ T31] do_file_open+0x18c/0x374 [ 1005.342394][ T31] do_sys_openat2+0xdc/0x180 [ 1005.342558][ T31] __arm64_sys_openat+0x130/0x1e0 [ 1005.342697][ T31] invoke_syscall+0x74/0x240 [ 1005.342864][ T31] el0_svc_common.constprop.0+0xac/0x230 [ 1005.343005][ T31] do_el0_svc+0x40/0x58 [ 1005.343148][ T31] el0_svc+0x58/0x2a4 [ 1005.343361][ T31] el0t_64_sync_handler+0xa0/0xe4 [ 1005.343510][ T31] el0t_64_sync+0x198/0x19c [ 1005.344378][ T31] INFO: task syz-executor.0:3694 blocked for more than 430 seconds. [ 1005.344511][ T31] Not tainted syzkaller #0 [ 1005.344593][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1005.344661][ T31] task:syz-executor.0 state:D stack:0 pid:3694 tgid:3693 ppid:3579 task_flags:0x400140 flags:0x00000019 [ 1005.344874][ T31] Call trace: [ 1005.344941][ T31] __switch_to+0x20c/0x520 (T) [ 1005.345093][ T31] __schedule+0xf98/0x3500 [ 1005.345221][ T31] schedule+0xcc/0x294 [ 1005.345345][ T31] schedule_preempt_disabled+0x18/0x2c [ 1005.345531][ T31] __mutex_lock+0x7d8/0x153c [ 1005.345660][ T31] mutex_lock_nested+0x24/0x34 [ 1005.345790][ T31] bdev_release+0x104/0x510 [ 1005.345915][ T31] blkdev_release+0x14/0x24 [ 1005.346040][ T31] __fput+0x2d0/0x980 [ 1005.346174][ T31] ____fput+0x14/0x20 [ 1005.346307][ T31] task_work_run+0x134/0x238 [ 1005.346442][ T31] exit_to_user_mode_loop+0x190/0x1c8 [ 1005.348457][ T31] el0_svc+0x244/0x2a4 [ 1005.348620][ T31] el0t_64_sync_handler+0xa0/0xe4 [ 1005.348753][ T31] el0t_64_sync+0x198/0x19c [ 1005.349323][ T31] [ 1005.349323][ T31] Showing all locks held in the system: [ 1005.349595][ T31] 2 locks held by pr/ttyAMA-1/30: [ 1005.349879][ T31] 1 lock held by khungtaskd/31: [ 1005.349993][ T31] #0: ffff800087875240 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x40/0x190 [ 1005.351194][ T31] 1 lock held by udevd/3195: [ 1005.351289][ T31] #0: ffff0000150cb350 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0x2b8/0xa70 [ 1005.351783][ T31] 2 locks held by getty/3320: [ 1005.351862][ T31] #0: ffff0000137e50a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c [ 1005.352369][ T31] #1: ffff80008db0b2e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x420/0xec0 [ 1005.352843][ T31] 2 locks held by kworker/0:5/3692: [ 1005.352934][ T31] 1 lock held by syz-executor.0/3694: [ 1005.353014][ T31] #0: ffff0000150cb350 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_release+0x104/0x510 [ 1005.353429][ T31] 1 lock held by udevd/3700: [ 1005.353524][ T31] #0: ffff0000150cb350 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0x2b8/0xa70 [ 1005.353931][ T31] 1 lock held by syz-executor.0/3799: [ 1005.354012][ T31] #0: ffff0000150cb350 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0x2b8/0xa70 [ 1005.354432][ T31] 1 lock held by syz-executor.0/3880: [ 1005.354547][ T31] #0: ffff0000150cb350 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0x2b8/0xa70 [ 1005.355148][ T31] [ 1005.355224][ T31] ============================================= [ 1005.355224][ T31] [ 1005.356110][ T31] Kernel panic - not syncing: hung_task: blocked tasks [ 1005.369267][ T31] CPU: 1 UID: 0 PID: 31 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT [ 1005.369892][ T31] Hardware name: linux,dummy-virt (DT) [ 1005.370288][ T31] Call trace: [ 1005.370731][ T31] show_stack+0x18/0x24 (C) [ 1005.371141][ T31] dump_stack_lvl+0x7c/0xb0 [ 1005.371771][ T31] dump_stack+0x1c/0x28 [ 1005.372376][ T31] vpanic+0x464/0x764 [ 1005.372815][ T31] do_panic_on_target_cpu+0x0/0x40 [ 1005.373231][ T31] watchdog+0x560/0xf18 [ 1005.373647][ T31] kthread+0x2ec/0x384 [ 1005.373986][ T31] ret_from_fork+0x10/0x20 [ 1005.375091][ T31] SMP: stopping secondary CPUs [ 1005.376743][ T31] Kernel Offset: disabled [ 1005.377161][ T31] CPU features: 0x04100000,800d0008,00040000,0400421b [ 1005.377730][ T31] Memory Limit: none [ 1005.379803][ T31] Rebooting in 86400 seconds..