[ 71.405871][ T40] audit: type=1400 audit(1767857011.031:106): avc: denied { transition } for pid=6016 comm="sshd-session" path="/bin/sh" dev="sda1" ino=90 scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 71.415317][ T40] audit: type=1400 audit(1767857011.031:107): avc: denied { noatsecure } for pid=6016 comm="sshd-session" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 71.422332][ T40] audit: type=1400 audit(1767857011.041:108): avc: denied { rlimitinh } for pid=6016 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 71.431306][ T40] audit: type=1400 audit(1767857011.041:109): avc: denied { siginh } for pid=6016 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 Warning: Permanently added '[localhost]:40631' (ED25519) to the list of known hosts. [ 75.660990][ T40] audit: type=1400 audit(1767857015.291:110): avc: denied { execute } for pid=6039 comm="sh" name="syz-execprog" dev="sda1" ino=2020 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:etc_runtime_t tclass=file permissive=1 [ 75.668476][ T40] audit: type=1400 audit(1767857015.291:111): avc: denied { execute_no_trans } for pid=6039 comm="sh" path="/syz-execprog" dev="sda1" ino=2020 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:etc_runtime_t tclass=file permissive=1 2026/01/08 07:23:35 ignoring optional flag "type"="qemu" 2026/01/08 07:23:35 parsed 1 programs [ 76.080937][ T40] audit: type=1400 audit(1767857015.711:112): avc: denied { unlink } for pid=6046 comm="syz-executor" name="swap-file" dev="sda1" ino=2027 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=file permissive=1 trawcon="root:object_r:swapfile_t" [ 76.464514][ T1420] ieee802154 phy0 wpan0: encryption failed: -22 [ 76.467273][ T1420] ieee802154 phy1 wpan1: encryption failed: -22 [ 77.316371][ T6046] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k 2026/01/08 07:23:36 executed programs: 0 [ 77.369130][ T5295] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 77.374371][ T5295] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 77.380583][ T5295] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 77.380624][ T6065] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1 [ 77.385608][ T5295] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 77.391923][ T6068] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9 [ 77.397130][ T6068] Bluetooth: hci2: unexpected cc 0x0c03 length: 249 > 1 [ 77.402077][ T6068] Bluetooth: hci3: unexpected cc 0x0c03 length: 249 > 1 [ 77.405970][ T6068] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9 [ 77.406123][ T6070] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 77.409213][ T6068] Bluetooth: hci2: unexpected cc 0x1003 length: 249 > 9 [ 77.413553][ T6070] Bluetooth: hci3: unexpected cc 0x1003 length: 249 > 9 [ 77.416537][ T6068] Bluetooth: hci2: unexpected cc 0x1001 length: 249 > 9 [ 77.419568][ T6070] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4 [ 77.423549][ T6068] Bluetooth: hci3: unexpected cc 0x1001 length: 249 > 9 [ 77.425684][ T6071] Bluetooth: hci2: unexpected cc 0x0c23 length: 249 > 4 [ 77.429093][ T6068] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2 [ 77.430202][ T6071] Bluetooth: hci2: unexpected cc 0x0c38 length: 249 > 2 [ 77.430827][ T6063] Bluetooth: hci3: unexpected cc 0x0c23 length: 249 > 4 [ 77.431816][ T6063] Bluetooth: hci3: unexpected cc 0x0c38 length: 249 > 2 [ 77.812634][ T6066] chnl_net:caif_netlink_parms(): no params data found [ 77.831200][ T6058] chnl_net:caif_netlink_parms(): no params data found [ 77.924112][ T6060] chnl_net:caif_netlink_parms(): no params data found [ 77.980907][ T6062] chnl_net:caif_netlink_parms(): no params data found [ 78.002434][ T6066] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.005261][ T6066] bridge0: port 1(bridge_slave_0) entered disabled state [ 78.007771][ T6066] bridge_slave_0: entered allmulticast mode [ 78.012950][ T6066] bridge_slave_0: entered promiscuous mode [ 78.077689][ T6066] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.080911][ T6066] bridge0: port 2(bridge_slave_1) entered disabled state [ 78.083269][ T6066] bridge_slave_1: entered allmulticast mode [ 78.086232][ T6066] bridge_slave_1: entered promiscuous mode [ 78.191778][ T6058] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.194925][ T6058] bridge0: port 1(bridge_slave_0) entered disabled state [ 78.197984][ T6058] bridge_slave_0: entered allmulticast mode [ 78.204253][ T6058] bridge_slave_0: entered promiscuous mode [ 78.262144][ T6058] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.265723][ T6058] bridge0: port 2(bridge_slave_1) entered disabled state [ 78.269193][ T6058] bridge_slave_1: entered allmulticast mode [ 78.273126][ T6058] bridge_slave_1: entered promiscuous mode [ 78.279377][ T6066] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 78.334395][ T6066] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 78.338540][ T6060] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.342377][ T6060] bridge0: port 1(bridge_slave_0) entered disabled state [ 78.345721][ T6060] bridge_slave_0: entered allmulticast mode [ 78.349984][ T6060] bridge_slave_0: entered promiscuous mode [ 78.421486][ T6060] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.424710][ T6060] bridge0: port 2(bridge_slave_1) entered disabled state [ 78.427771][ T6060] bridge_slave_1: entered allmulticast mode [ 78.431509][ T6060] bridge_slave_1: entered promiscuous mode [ 78.458171][ T6058] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 78.464903][ T6066] team0: Port device team_slave_0 added [ 78.518288][ T6058] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 78.523628][ T6066] team0: Port device team_slave_1 added [ 78.547010][ T6062] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.549990][ T6062] bridge0: port 1(bridge_slave_0) entered disabled state [ 78.552905][ T6062] bridge_slave_0: entered allmulticast mode [ 78.555796][ T6062] bridge_slave_0: entered promiscuous mode [ 78.592317][ T6060] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 78.595690][ T6062] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.598515][ T6062] bridge0: port 2(bridge_slave_1) entered disabled state [ 78.603371][ T6062] bridge_slave_1: entered allmulticast mode [ 78.607096][ T6062] bridge_slave_1: entered promiscuous mode [ 78.636645][ T6060] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 78.673650][ T6058] team0: Port device team_slave_0 added [ 78.693444][ T6066] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 78.696295][ T6066] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem. [ 78.705285][ T6066] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 78.725853][ T6058] team0: Port device team_slave_1 added [ 78.744724][ T6066] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 78.747375][ T6066] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem. [ 78.756572][ T6066] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 78.762483][ T6062] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 78.789492][ T6060] team0: Port device team_slave_0 added [ 78.799674][ T6062] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 78.820934][ T6060] team0: Port device team_slave_1 added [ 78.853418][ T6058] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 78.855870][ T6058] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem. [ 78.865281][ T6058] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 78.916196][ T6058] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 78.919045][ T6058] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem. [ 78.927418][ T6058] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 78.950204][ T6060] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 78.952816][ T6060] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem. [ 78.961204][ T6060] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 78.966914][ T6062] team0: Port device team_slave_0 added [ 78.974441][ T6062] team0: Port device team_slave_1 added [ 78.991491][ T6060] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 78.993978][ T6060] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem. [ 79.003027][ T6060] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 79.056344][ T6066] hsr_slave_0: entered promiscuous mode [ 79.058629][ T6066] hsr_slave_1: entered promiscuous mode [ 79.081397][ T6062] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 79.083979][ T6062] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem. [ 79.092726][ T6062] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 79.162790][ T6062] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 79.165162][ T6062] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem. [ 79.178871][ T6062] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 79.212959][ T6060] hsr_slave_0: entered promiscuous mode [ 79.216354][ T6060] hsr_slave_1: entered promiscuous mode [ 79.219648][ T6060] debugfs: 'hsr0' already exists in 'hsr' [ 79.222535][ T6060] Cannot create hsr debugfs directory [ 79.228165][ T6058] hsr_slave_0: entered promiscuous mode [ 79.232079][ T6058] hsr_slave_1: entered promiscuous mode [ 79.234524][ T6058] debugfs: 'hsr0' already exists in 'hsr' [ 79.236357][ T6058] Cannot create hsr debugfs directory [ 79.373363][ T6062] hsr_slave_0: entered promiscuous mode [ 79.375711][ T6062] hsr_slave_1: entered promiscuous mode [ 79.378234][ T6062] debugfs: 'hsr0' already exists in 'hsr' [ 79.381067][ T6062] Cannot create hsr debugfs directory [ 79.500565][ T6071] Bluetooth: hci1: command tx timeout [ 79.500577][ T64] Bluetooth: hci2: command tx timeout [ 79.503767][ T6065] Bluetooth: hci3: command tx timeout [ 79.510149][ T64] Bluetooth: hci0: command tx timeout [ 79.835355][ T6066] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 79.853893][ T6066] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 79.860512][ T6066] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 79.867637][ T6066] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 79.972176][ T6066] 8021q: adding VLAN 0 to HW filter on device bond0 [ 79.988349][ T6066] 8021q: adding VLAN 0 to HW filter on device team0 [ 80.016996][ T1213] bridge0: port 1(bridge_slave_0) entered blocking state [ 80.019640][ T1213] bridge0: port 1(bridge_slave_0) entered forwarding state [ 80.031358][ T1178] bridge0: port 2(bridge_slave_1) entered blocking state [ 80.034709][ T1178] bridge0: port 2(bridge_slave_1) entered forwarding state [ 80.211534][ T6062] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 80.235287][ T6062] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 80.242633][ T6062] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 80.258529][ T6062] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 80.297228][ T6060] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 80.302930][ T6060] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 80.322242][ T6060] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 80.337109][ T6060] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 80.362081][ T6066] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 80.401419][ T6058] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 80.414175][ T6058] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 80.425320][ T6058] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 80.433729][ T6058] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 80.473956][ T6066] veth0_vlan: entered promiscuous mode [ 80.485768][ T6066] veth1_vlan: entered promiscuous mode [ 80.533585][ T6062] 8021q: adding VLAN 0 to HW filter on device bond0 [ 80.562214][ T6060] 8021q: adding VLAN 0 to HW filter on device bond0 [ 80.591335][ T6066] veth0_macvtap: entered promiscuous mode [ 80.601087][ T6062] 8021q: adding VLAN 0 to HW filter on device team0 [ 80.605005][ T6066] veth1_macvtap: entered promiscuous mode [ 80.633015][ T6060] 8021q: adding VLAN 0 to HW filter on device team0 [ 80.637475][ T6066] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 80.642571][ T1213] bridge0: port 1(bridge_slave_0) entered blocking state [ 80.645349][ T1213] bridge0: port 1(bridge_slave_0) entered forwarding state [ 80.666561][ T1213] bridge0: port 1(bridge_slave_0) entered blocking state [ 80.669681][ T1213] bridge0: port 1(bridge_slave_0) entered forwarding state [ 80.675259][ T1213] bridge0: port 2(bridge_slave_1) entered blocking state [ 80.677942][ T1213] bridge0: port 2(bridge_slave_1) entered forwarding state [ 80.686183][ T6066] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 80.702309][ T752] bridge0: port 2(bridge_slave_1) entered blocking state [ 80.706063][ T752] bridge0: port 2(bridge_slave_1) entered forwarding state [ 80.711795][ T4574] netdevsim netdevsim3 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 80.715429][ T4574] netdevsim netdevsim3 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 80.725243][ T4574] netdevsim netdevsim3 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 80.731123][ T4574] netdevsim netdevsim3 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 80.807221][ T6058] 8021q: adding VLAN 0 to HW filter on device bond0 [ 80.860656][ T6058] 8021q: adding VLAN 0 to HW filter on device team0 [ 80.882796][ T1150] bridge0: port 1(bridge_slave_0) entered blocking state [ 80.886265][ T1150] bridge0: port 1(bridge_slave_0) entered forwarding state [ 80.914235][ T752] bridge0: port 2(bridge_slave_1) entered blocking state [ 80.916665][ T752] bridge0: port 2(bridge_slave_1) entered forwarding state [ 81.014806][ T6062] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 81.097129][ T6062] veth0_vlan: entered promiscuous mode [ 81.121268][ T6062] veth1_vlan: entered promiscuous mode [ 81.128697][ T6060] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 81.168513][ T6062] veth0_macvtap: entered promiscuous mode [ 81.182780][ T6062] veth1_macvtap: entered promiscuous mode [ 81.203654][ T6062] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 81.230636][ T6062] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 81.266263][ T6060] veth0_vlan: entered promiscuous mode [ 81.280079][ T1178] netdevsim netdevsim1 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.289454][ T1178] netdevsim netdevsim1 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.303844][ T1178] netdevsim netdevsim1 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.308207][ T1178] netdevsim netdevsim1 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.338547][ T6060] veth1_vlan: entered promiscuous mode [ 81.362840][ T6058] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 81.421911][ T6060] veth0_macvtap: entered promiscuous mode [ 81.433406][ T6060] veth1_macvtap: entered promiscuous mode [ 81.466889][ T6060] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 81.496594][ T6058] veth0_vlan: entered promiscuous mode [ 81.512613][ T6060] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 81.525610][ T1150] netdevsim netdevsim2 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.536722][ T1150] netdevsim netdevsim2 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.542010][ T6058] veth1_vlan: entered promiscuous mode [ 81.545673][ T1213] netdevsim netdevsim2 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.558257][ T1213] netdevsim netdevsim2 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.589058][ T6065] Bluetooth: hci0: command tx timeout [ 81.589283][ T64] Bluetooth: hci2: command tx timeout [ 81.589303][ T64] Bluetooth: hci3: command tx timeout [ 81.589316][ T64] Bluetooth: hci1: command tx timeout [ 81.641076][ T18] ------------[ cut here ]------------ [ 81.641479][ T18] [ 81.641484][ T18] ====================================================== [ 81.641488][ T18] WARNING: possible circular locking dependency detected [ 81.641493][ T18] syzkaller #0 Not tainted [ 81.641498][ T18] ------------------------------------------------------ [ 81.641502][ T18] rcu_exp_gp_kthr/18 is trying to acquire lock: [ 81.641507][ T18] ffffffff8e2d6c40 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x61/0x80 [ 81.641551][ T18] [ 81.641551][ T18] but task is already holding lock: [ 81.641554][ T18] ffff88806a63ac98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x7e/0x130 [ 81.641583][ T18] [ 81.641583][ T18] which lock already depends on the new lock. [ 81.641583][ T18] [ 81.641586][ T18] [ 81.641586][ T18] the existing dependency chain (in reverse order) is: [ 81.641590][ T18] [ 81.641590][ T18] -> #4 (&rq->__lock){-.-.}-{2:2}: [ 81.641603][ T18] _raw_spin_lock_nested+0x31/0x40 [ 81.641615][ T18] raw_spin_rq_lock_nested+0x29/0x130 [ 81.641632][ T18] task_rq_lock+0xcf/0x490 [ 81.641640][ T18] cgroup_move_task+0x81/0x2a0 [ 81.641650][ T18] css_set_move_task+0x288/0x5f0 [ 81.641663][ T18] cgroup_post_fork+0x201/0x9e0 [ 81.641675][ T18] copy_process+0x56b6/0x7430 [ 81.641692][ T18] kernel_clone+0xfc/0x910 [ 81.641700][ T18] user_mode_thread+0xc8/0x110 [ 81.641708][ T18] rest_init+0x23/0x2b0 [ 81.641717][ T18] start_kernel+0x3ef/0x4d0 [ 81.641851][ T18] x86_64_start_reservations+0x18/0x30 [ 81.641872][ T18] x86_64_start_kernel+0x130/0x190 [ 81.641881][ T18] common_startup_64+0x13e/0x148 [ 81.641895][ T18] [ 81.641895][ T18] -> #3 (&p->pi_lock){-.-.}-{2:2}: [ 81.641910][ T18] _raw_spin_lock_irqsave+0x3a/0x60 [ 81.641923][ T18] try_to_wake_up+0xb7/0x1860 [ 81.641939][ T18] __wake_up_common+0x135/0x1f0 [ 81.641951][ T18] __wake_up+0x31/0x60 [ 81.641961][ T18] tty_port_default_wakeup+0x4d/0x60 [ 81.642035][ T18] serial8250_tx_chars+0x68e/0x860 [ 81.642049][ T18] serial8250_handle_irq+0x761/0xcb0 [ 81.642062][ T18] serial8250_default_handle_irq+0x9e/0x270 [ 81.642080][ T18] serial8250_interrupt+0xf8/0x1d0 [ 81.642104][ T18] __handle_irq_event_percpu+0x236/0x890 [ 81.642128][ T18] handle_irq_event+0xab/0x1e0 [ 81.642153][ T18] handle_edge_irq+0x3ca/0x9e0 [ 81.642176][ T18] __common_interrupt+0xd0/0x2f0 [ 81.642203][ T18] common_interrupt+0xba/0xe0 [ 81.642218][ T18] asm_common_interrupt+0x26/0x40 [ 81.642233][ T18] finish_task_switch.isra.0+0x210/0xbd0 [ 81.642249][ T18] __schedule+0x1141/0x6150 [ 81.642261][ T18] schedule_idle+0x5c/0x90 [ 81.642272][ T18] do_idle+0x2b3/0x510 [ 81.642288][ T18] cpu_startup_entry+0x4f/0x60 [ 81.642304][ T18] rest_init+0x16b/0x2b0 [ 81.642311][ T18] start_kernel+0x3ef/0x4d0 [ 81.642327][ T18] x86_64_start_reservations+0x18/0x30 [ 81.642345][ T18] x86_64_start_kernel+0x130/0x190 [ 81.642354][ T18] common_startup_64+0x13e/0x148 [ 81.642366][ T18] [ 81.642366][ T18] -> #2 (&tty->write_wait){-.-.}-{3:3}: [ 81.642381][ T18] _raw_spin_lock_irqsave+0x3a/0x60 [ 81.642393][ T18] __wake_up+0x1c/0x60 [ 81.642402][ T18] tty_port_default_wakeup+0x4d/0x60 [ 81.642418][ T18] serial8250_tx_chars+0x68e/0x860 [ 81.642436][ T18] serial8250_handle_irq+0x761/0xcb0 [ 81.642459][ T18] serial8250_default_handle_irq+0x9e/0x270 [ 81.642481][ T18] serial8250_interrupt+0xf8/0x1d0 [ 81.642506][ T18] __handle_irq_event_percpu+0x236/0x890 [ 81.642534][ T18] handle_irq_event+0xab/0x1e0 [ 81.642550][ T18] handle_edge_irq+0x3ca/0x9e0 [ 81.642565][ T18] __common_interrupt+0xd0/0x2f0 [ 81.642581][ T18] common_interrupt+0xba/0xe0 [ 81.642590][ T18] asm_common_interrupt+0x26/0x40 [ 81.642600][ T18] pv_native_safe_halt+0xf/0x20 [ 81.642612][ T18] default_idle+0x13/0x20 [ 81.642628][ T18] default_idle_call+0x6c/0xb0 [ 81.642643][ T18] do_idle+0x38d/0x510 [ 81.642658][ T18] cpu_startup_entry+0x4f/0x60 [ 81.642674][ T18] rest_init+0x16b/0x2b0 [ 81.642681][ T18] start_kernel+0x3ef/0x4d0 [ 81.642697][ T18] x86_64_start_reservations+0x18/0x30 [ 81.642714][ T18] x86_64_start_kernel+0x130/0x190 [ 81.642723][ T18] common_startup_64+0x13e/0x148 [ 81.642735][ T18] [ 81.642735][ T18] -> #1 (&port_lock_key){-.-.}-{3:3}: [ 81.642749][ T18] _raw_spin_lock_irqsave+0x3a/0x60 [ 81.642762][ T18] serial8250_console_write+0x181/0x1890 [ 81.642778][ T18] console_flush_one_record+0x796/0xc60 [ 81.642874][ T18] console_unlock+0xef/0x240 [ 81.642889][ T18] vprintk_emit+0x407/0x6b0 [ 81.642898][ T18] _printk+0xc7/0x100 [ 81.642909][ T18] register_console+0x823/0x1210 [ 81.642918][ T18] univ8250_console_init+0x5f/0x90 [ 81.642931][ T18] console_init+0x152/0x600 [ 81.642941][ T18] start_kernel+0x298/0x4d0 [ 81.642957][ T18] x86_64_start_reservations+0x18/0x30 [ 81.642974][ T18] x86_64_start_kernel+0x130/0x190 [ 81.642982][ T18] common_startup_64+0x13e/0x148 [ 81.642996][ T18] [ 81.642996][ T18] -> #0 (console_owner){....}-{0:0}: [ 81.643012][ T18] __lock_acquire+0x1669/0x2890 [ 81.643024][ T18] lock_acquire+0x179/0x330 [ 81.643035][ T18] console_lock_spinning_enable+0x72/0x80 [ 81.643050][ T18] console_flush_one_record+0x73f/0xc60 [ 81.643073][ T18] console_unlock+0xef/0x240 [ 81.643087][ T18] vprintk_emit+0x407/0x6b0 [ 81.643095][ T18] _printk+0xc7/0x100 [ 81.643106][ T18] __report_bug+0x3a6/0x520 [ 81.643118][ T18] report_bug+0xb2/0x220 [ 81.643128][ T18] handle_bug+0x127/0x260 [ 81.643143][ T18] exc_invalid_op+0x17/0x50 [ 81.643157][ T18] asm_exc_invalid_op+0x1a/0x20 [ 81.643167][ T18] set_next_entity+0x6c2/0x9d0 [ 81.643180][ T18] set_next_task_fair+0x59/0x350 [ 81.643194][ T18] __schedule+0x166f/0x6150 [ 81.643205][ T18] preempt_schedule_common+0x44/0xc0 [ 81.643217][ T18] preempt_schedule_thunk+0x16/0x30 [ 81.643227][ T18] __sync_rcu_exp_select_node_cpus+0x758/0xd50 [ 81.643250][ T18] sync_rcu_exp_select_cpus+0x3cb/0xab0 [ 81.643269][ T18] wait_rcu_exp_gp+0x2c/0x40 [ 81.643288][ T18] kthread_worker_fn+0x310/0xbf0 [ 81.643303][ T18] kthread+0x3c5/0x780 [ 81.643317][ T18] ret_from_fork+0x983/0xb10 [ 81.643332][ T18] ret_from_fork_asm+0x1a/0x30 [ 81.643353][ T18] [ 81.643353][ T18] other info that might help us debug this: [ 81.643353][ T18] [ 81.643360][ T18] Chain exists of: [ 81.643360][ T18] console_owner --> &p->pi_lock --> &rq->__lock [ 81.643360][ T18] [ 81.643382][ T18] Possible unsafe locking scenario: [ 81.643382][ T18] [ 81.643386][ T18] CPU0 CPU1 [ 81.643390][ T18] ---- ---- [ 81.643393][ T18] lock(&rq->__lock); [ 81.643402][ T18] lock(&p->pi_lock); [ 81.643411][ T18] lock(&rq->__lock); [ 81.643420][ T18] lock(console_owner); [ 81.643429][ T18] [ 81.643429][ T18] *** DEADLOCK *** [ 81.643429][ T18] [ 81.643432][ T18] 3 locks held by rcu_exp_gp_kthr/18: [ 81.643442][ T18] #0: ffff88806a63ac98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x7e/0x130 [ 81.643486][ T18] #1: ffffffff8e3b7080 (console_lock){+.+.}-{0:0}, at: _printk+0xc7/0x100 [ 81.643511][ T18] #2: ffffffff8e3b70f8 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x103/0xc60 [ 81.643545][ T18] [ 81.643545][ T18] stack backtrace: [ 81.643555][ T18] CPU: 3 UID: 0 PID: 18 Comm: rcu_exp_gp_kthr Not tainted syzkaller #0 PREEMPT(full) [ 81.643577][ T18] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 81.643588][ T18] Call Trace: [ 81.643596][ T18] [ 81.643603][ T18] dump_stack_lvl+0x116/0x1f0 [ 81.643627][ T18] print_circular_bug+0x275/0x340 [ 81.643646][ T18] check_noncircular+0x146/0x160 [ 81.643672][ T18] __lock_acquire+0x1669/0x2890 [ 81.643687][ T18] lock_acquire+0x179/0x330 [ 81.643699][ T18] ? console_lock_spinning_enable+0x61/0x80 [ 81.643715][ T18] ? console_lock_spinning_enable+0x4a/0x80 [ 81.643732][ T18] console_lock_spinning_enable+0x72/0x80 [ 81.643747][ T18] ? console_lock_spinning_enable+0x61/0x80 [ 81.643763][ T18] console_flush_one_record+0x73f/0xc60 [ 81.643786][ T18] ? __pfx_console_flush_one_record+0x10/0x10 [ 81.643806][ T18] ? __lock_acquire+0x436/0x2890 [ 81.643820][ T18] ? is_printk_cpu_sync_owner+0x32/0x40 [ 81.643832][ T18] console_unlock+0xef/0x240 [ 81.643847][ T18] ? __pfx_console_unlock+0x10/0x10 [ 81.643863][ T18] ? do_raw_spin_unlock+0x150/0x230 [ 81.643878][ T18] ? _printk+0xc7/0x100 [ 81.643891][ T18] ? __down_trylock_console_sem+0xb0/0x140 [ 81.643905][ T18] vprintk_emit+0x407/0x6b0 [ 81.643914][ T18] ? __pfx_vprintk_emit+0x10/0x10 [ 81.643932][ T18] _printk+0xc7/0x100 [ 81.643944][ T18] ? __pfx__printk+0x10/0x10 [ 81.643956][ T18] ? update_load_avg+0x233/0x2220 [ 81.643970][ T18] ? __report_bug+0x396/0x520 [ 81.643980][ T18] ? __report_bug+0x264/0x520 [ 81.643991][ T18] __report_bug+0x3a6/0x520 [ 81.644001][ T18] ? set_next_entity+0x6c2/0x9d0 [ 81.644014][ T18] ? __pfx___report_bug+0x10/0x10 [ 81.644025][ T18] ? __lock_acquire+0x436/0x2890 [ 81.644037][ T18] ? __lock_acquire+0x436/0x2890 [ 81.644049][ T18] ? set_next_entity+0x6c2/0x9d0 [ 81.644062][ T18] report_bug+0xb2/0x220 [ 81.644072][ T18] ? set_next_entity+0x6c2/0x9d0 [ 81.644084][ T18] handle_bug+0x127/0x260 [ 81.644100][ T18] exc_invalid_op+0x17/0x50 [ 81.644115][ T18] asm_exc_invalid_op+0x1a/0x20 [ 81.644125][ T18] RIP: 0010:set_next_entity+0x6c2/0x9d0 [ 81.644139][ T18] Code: fc ff df 4c 89 f2 48 c1 ea 03 80 3c 02 00 0f 85 fb 02 00 00 49 8b bc 24 78 01 00 00 48 89 da e8 64 4d 08 00 e9 bc fc ff ff 90 <0f> 0b 90 e9 00 fb ff ff 90 0f 0b 90 e9 84 fa ff ff 48 c7 c3 ff ff [ 81.644154][ T18] RSP: 0018:ffffc90000157a30 EFLAGS: 00010086 [ 81.644165][ T18] RAX: dffffc0000000000 RBX: 0000001287656efc RCX: 0000000000000001 [ 81.644172][ T18] RDX: 1ffff110059b540b RSI: ffffffff8daa7f9d RDI: ffff8880249e4a58 [ 81.644178][ T18] RBP: ffff8880249e4a00 R08: 0000000000000001 R09: 0000000000000000 [ 81.644185][ T18] R10: 0000000000000000 R11: 0000000000000001 R12: ffff88802cdaa000 [ 81.644191][ T18] R13: ffff88802cdaa058 R14: ffff88802cdaa178 R15: 0000000000000000 [ 81.644201][ T18] set_next_task_fair+0x59/0x350 [ 81.644217][ T18] ? preempt_schedule_common+0x44/0xc0 [ 81.644229][ T18] __schedule+0x166f/0x6150 [ 81.644242][ T18] ? smp_call_function_single+0x23c/0x6b0 [ 81.644258][ T18] ? __pfx___schedule+0x10/0x10 [ 81.644270][ T18] ? preempt_schedule_thunk+0x16/0x30 [ 81.644281][ T18] preempt_schedule_common+0x44/0xc0 [ 81.644294][ T18] preempt_schedule_thunk+0x16/0x30 [ 81.644305][ T18] ? smp_call_function_single+0x23c/0x6b0 [ 81.644318][ T18] __sync_rcu_exp_select_node_cpus+0x758/0xd50 [ 81.644333][ T18] sync_rcu_exp_select_cpus+0x3cb/0xab0 [ 81.644346][ T18] ? rcu_is_watching+0x12/0xc0 [ 81.644357][ T18] wait_rcu_exp_gp+0x2c/0x40 [ 81.644382][ T18] kthread_worker_fn+0x310/0xbf0 [ 81.644395][ T18] ? __pfx_wait_rcu_exp_gp+0x10/0x10 [ 81.644413][ T18] ? __pfx_kthread_worker_fn+0x10/0x10 [ 81.644426][ T18] kthread+0x3c5/0x780 [ 81.644438][ T18] ? __pfx_kthread+0x10/0x10 [ 81.644450][ T18] ? rcu_is_watching+0x12/0xc0 [ 81.644459][ T18] ? __pfx_kthread+0x10/0x10 [ 81.644474][ T18] ret_from_fork+0x983/0xb10 [ 81.644491][ T18] ? __pfx_ret_from_fork+0x10/0x10 [ 81.644509][ T18] ? __switch_to+0x7af/0x10d0 [ 81.644578][ T18] ? __pfx_kthread+0x10/0x10 [ 81.644596][ T18] ret_from_fork_asm+0x1a/0x30 [ 81.644614][ T18] [ 82.124444][ T18] WARNING: kernel/sched/fair.c:5449 at set_next_entity+0x6c2/0x9d0, CPU#3: rcu_exp_gp_kthr/18 [ 82.128588][ T18] Modules linked in: [ 82.130078][ T18] CPU: 3 UID: 0 PID: 18 Comm: rcu_exp_gp_kthr Not tainted syzkaller #0 PREEMPT(full) [ 82.134008][ T18] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 82.138665][ T18] RIP: 0010:set_next_entity+0x6c2/0x9d0 [ 82.140915][ T18] Code: fc ff df 4c 89 f2 48 c1 ea 03 80 3c 02 00 0f 85 fb 02 00 00 49 8b bc 24 78 01 00 00 48 89 da e8 64 4d 08 00 e9 bc fc ff ff 90 <0f> 0b 90 e9 00 fb ff ff 90 0f 0b 90 e9 84 fa ff ff 48 c7 c3 ff ff [ 82.148462][ T18] RSP: 0018:ffffc90000157a30 EFLAGS: 00010086 [ 82.151002][ T18] RAX: dffffc0000000000 RBX: 0000001287656efc RCX: 0000000000000001 [ 82.154398][ T18] RDX: 1ffff110059b540b RSI: ffffffff8daa7f9d RDI: ffff8880249e4a58 [ 82.157641][ T18] RBP: ffff8880249e4a00 R08: 0000000000000001 R09: 0000000000000000 [ 82.160866][ T18] R10: 0000000000000000 R11: 0000000000000001 R12: ffff88802cdaa000 [ 82.164056][ T18] R13: ffff88802cdaa058 R14: ffff88802cdaa178 R15: 0000000000000000 [ 82.167307][ T18] FS: 0000000000000000(0000) GS:ffff8880d6bf5000(0000) knlGS:0000000000000000 [ 82.171269][ T18] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 82.173821][ T18] CR2: 0000555581e3c788 CR3: 000000003ab39000 CR4: 0000000000352ef0 [ 82.176388][ T18] Call Trace: [ 82.177528][ T18] [ 82.178708][ T18] set_next_task_fair+0x59/0x350 [ 82.180346][ T18] ? preempt_schedule_common+0x44/0xc0 [ 82.182227][ T18] __schedule+0x166f/0x6150 [ 82.183713][ T18] ? smp_call_function_single+0x23c/0x6b0 [ 82.185922][ T18] ? __pfx___schedule+0x10/0x10 [ 82.187837][ T18] ? preempt_schedule_thunk+0x16/0x30 [ 82.189993][ T18] preempt_schedule_common+0x44/0xc0 [ 82.192008][ T18] preempt_schedule_thunk+0x16/0x30 [ 82.193928][ T18] ? smp_call_function_single+0x23c/0x6b0 [ 82.195896][ T18] __sync_rcu_exp_select_node_cpus+0x758/0xd50 [ 82.198014][ T18] sync_rcu_exp_select_cpus+0x3cb/0xab0 [ 82.199876][ T18] ? rcu_is_watching+0x12/0xc0 [ 82.201522][ T18] wait_rcu_exp_gp+0x2c/0x40 [ 82.203247][ T18] kthread_worker_fn+0x310/0xbf0 [ 82.205257][ T18] ? __pfx_wait_rcu_exp_gp+0x10/0x10 [ 82.207286][ T18] ? __pfx_kthread_worker_fn+0x10/0x10 [ 82.209147][ T18] kthread+0x3c5/0x780 [ 82.210447][ T18] ? __pfx_kthread+0x10/0x10 [ 82.211953][ T18] ? rcu_is_watching+0x12/0xc0 [ 82.213507][ T18] ? __pfx_kthread+0x10/0x10 [ 82.215183][ T18] ret_from_fork+0x983/0xb10 [ 82.216712][ T18] ? __pfx_ret_from_fork+0x10/0x10 [ 82.218445][ T18] ? __switch_to+0x7af/0x10d0 [ 82.220192][ T18] ? __pfx_kthread+0x10/0x10 [ 82.222053][ T18] ret_from_fork_asm+0x1a/0x30 [ 82.223809][ T18] [ 82.224917][ T18] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 82.227918][ T18] CPU: 3 UID: 0 PID: 18 Comm: rcu_exp_gp_kthr Not tainted syzkaller #0 PREEMPT(full) [ 82.232067][ T18] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 82.236544][ T18] Call Trace: [ 82.237929][ T18] [ 82.239122][ T18] dump_stack_lvl+0x3d/0x1f0 [ 82.241063][ T18] vpanic+0x640/0x6f0 [ 82.243199][ T18] ? set_next_entity+0x6c2/0x9d0 [ 82.245750][ T18] panic+0xca/0xd0 [ 82.247732][ T18] ? __pfx_panic+0x10/0x10 [ 82.249942][ T18] ? check_panic_on_warn+0x1f/0xb0 [ 82.251769][ T18] check_panic_on_warn+0xab/0xb0 [ 82.253571][ T18] __warn+0x108/0x3c0 [ 82.255018][ T18] __report_bug+0x2a0/0x520 [ 82.256540][ T18] ? set_next_entity+0x6c2/0x9d0 [ 82.258152][ T18] ? __pfx___report_bug+0x10/0x10 [ 82.259768][ T18] ? __lock_acquire+0x436/0x2890 [ 82.261358][ T18] ? __lock_acquire+0x436/0x2890 [ 82.263099][ T18] ? set_next_entity+0x6c2/0x9d0 [ 82.264938][ T18] report_bug+0xb2/0x220 [ 82.266470][ T18] ? set_next_entity+0x6c2/0x9d0 [ 82.268192][ T18] handle_bug+0x127/0x260 [ 82.269610][ T18] exc_invalid_op+0x17/0x50 [ 82.271054][ T18] asm_exc_invalid_op+0x1a/0x20 [ 82.272648][ T18] RIP: 0010:set_next_entity+0x6c2/0x9d0 [ 82.274441][ T18] Code: fc ff df 4c 89 f2 48 c1 ea 03 80 3c 02 00 0f 85 fb 02 00 00 49 8b bc 24 78 01 00 00 48 89 da e8 64 4d 08 00 e9 bc fc ff ff 90 <0f> 0b 90 e9 00 fb ff ff 90 0f 0b 90 e9 84 fa ff ff 48 c7 c3 ff ff [ 82.280910][ T18] RSP: 0018:ffffc90000157a30 EFLAGS: 00010086 [ 82.283196][ T18] RAX: dffffc0000000000 RBX: 0000001287656efc RCX: 0000000000000001 [ 82.285837][ T18] RDX: 1ffff110059b540b RSI: ffffffff8daa7f9d RDI: ffff8880249e4a58 [ 82.288260][ T18] RBP: ffff8880249e4a00 R08: 0000000000000001 R09: 0000000000000000 [ 82.290796][ T18] R10: 0000000000000000 R11: 0000000000000001 R12: ffff88802cdaa000 [ 82.293788][ T18] R13: ffff88802cdaa058 R14: ffff88802cdaa178 R15: 0000000000000000 [ 82.296386][ T18] set_next_task_fair+0x59/0x350 [ 82.297997][ T18] ? preempt_schedule_common+0x44/0xc0 [ 82.299742][ T18] __schedule+0x166f/0x6150 [ 82.301253][ T18] ? smp_call_function_single+0x23c/0x6b0 [ 82.303654][ T18] ? __pfx___schedule+0x10/0x10 [ 82.305308][ T18] ? preempt_schedule_thunk+0x16/0x30 [ 82.307180][ T18] preempt_schedule_common+0x44/0xc0 [ 82.309068][ T18] preempt_schedule_thunk+0x16/0x30 [ 82.310906][ T18] ? smp_call_function_single+0x23c/0x6b0 [ 82.312758][ T18] __sync_rcu_exp_select_node_cpus+0x758/0xd50 [ 82.314808][ T18] sync_rcu_exp_select_cpus+0x3cb/0xab0 [ 82.316599][ T18] ? rcu_is_watching+0x12/0xc0 [ 82.318140][ T18] wait_rcu_exp_gp+0x2c/0x40 [ 82.319636][ T18] kthread_worker_fn+0x310/0xbf0 [ 82.321253][ T18] ? __pfx_wait_rcu_exp_gp+0x10/0x10 [ 82.322994][ T18] ? __pfx_kthread_worker_fn+0x10/0x10 [ 82.324968][ T18] kthread+0x3c5/0x780 [ 82.326471][ T18] ? __pfx_kthread+0x10/0x10 [ 82.328068][ T18] ? rcu_is_watching+0x12/0xc0 [ 82.329628][ T18] ? __pfx_kthread+0x10/0x10 [ 82.331143][ T18] ret_from_fork+0x983/0xb10 [ 82.332599][ T18] ? __pfx_ret_from_fork+0x10/0x10 [ 82.334214][ T18] ? __switch_to+0x7af/0x10d0 [ 82.335838][ T18] ? __pfx_kthread+0x10/0x10 [ 82.337415][ T18] ret_from_fork_asm+0x1a/0x30 [ 82.339108][ T18] [ 83.433293][ T18] Shutting down cpus with NMI [ 83.436200][ T18] Kernel Offset: disabled [ 83.438044][ T18] Rebooting in 86400 seconds..