Warning: Permanently added '[localhost]:15075' (ED25519) to the list of known hosts. [ 45.264651][ T43] kauditd_printk_skb: 17 callbacks suppressed [ 45.264673][ T43] audit: type=1400 audit(1791231254.495:138): avc: denied { execute } for pid=5729 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 [ 45.265164][ T43] audit: type=1400 audit(1791231254.495:139): avc: denied { execute_no_trans } for pid=5729 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 2026/10/05 20:14:15 parsed 1 programs 2026/10/05 20:14:15 serving rpc on tcp://33161 [ 46.513342][ T43] audit: type=1400 audit(1791231255.745:140): avc: denied { node_bind } for pid=5729 comm="syz-execprog" saddr=::1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:node_t tclass=tcp_socket permissive=1 [ 49.231707][ T43] audit: type=1400 audit(1791231258.455:141): avc: denied { mounton } for pid=5739 comm="syz-executor" path="/syzcgroup/unified" dev="sda1" ino=2023 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:root_t tclass=dir permissive=1 [ 49.233321][ T43] audit: type=1400 audit(1791231258.465:142): avc: denied { mount } for pid=5739 comm="syz-executor" name="/" dev="cgroup2" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 49.234923][ T5739] cgroup: Unknown subsys name 'net' [ 49.236070][ T43] audit: type=1400 audit(1791231258.465:143): avc: denied { unmount } for pid=5739 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 49.374587][ T5739] cgroup: Unknown subsys name 'cpuset' [ 49.376769][ T5739] cgroup: Unknown subsys name 'rlimit' [ 49.549519][ T43] audit: type=1400 audit(1791231258.775:144): avc: denied { setattr } for pid=5739 comm="syz-executor" name="raw-gadget" dev="devtmpfs" ino=848 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 49.549968][ T43] audit: type=1400 audit(1791231258.775:145): avc: denied { create } for pid=5739 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 49.550250][ T43] audit: type=1400 audit(1791231258.775:146): avc: denied { write } for pid=5739 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 49.550579][ T43] audit: type=1400 audit(1791231258.775:147): avc: denied { read } for pid=5739 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 Setting up swapspace version 1, size = 127995904 bytes [ 49.613563][ T5742] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 50.580679][ T5739] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 52.495136][ T43] kauditd_printk_skb: 10 callbacks suppressed [ 52.495156][ T43] audit: type=1400 audit(1791231261.725:158): avc: denied { execmem } for pid=5746 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 52.498985][ T43] audit: type=1400 audit(1791231261.725:159): avc: denied { read } for pid=5747 comm="syz-executor" dev="nsfs" ino=4026531833 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:nsfs_t tclass=file permissive=1 [ 52.499211][ T43] audit: type=1400 audit(1791231261.725:160): avc: denied { open } for pid=5747 comm="syz-executor" path="net:[4026531833]" dev="nsfs" ino=4026531833 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:nsfs_t tclass=file permissive=1 [ 52.500157][ T43] audit: type=1400 audit(1791231261.725:161): avc: denied { mounton } for pid=5747 comm="syz-executor" path="/" dev="sda1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:root_t tclass=dir permissive=1 [ 52.554690][ T43] audit: type=1400 audit(1791231261.785:162): avc: denied { mount } for pid=5747 comm="syz-executor" name="/" dev="tmpfs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:tmpfs_t tclass=filesystem permissive=1 [ 52.555663][ T43] audit: type=1400 audit(1791231261.785:163): avc: denied { mounton } for pid=5747 comm="syz-executor" path="/syzkaller.kvsZKq/syz-tmp/newroot/dev" dev="tmpfs" ino=3 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_tmpfs_t tclass=dir permissive=1 [ 52.556555][ T43] audit: type=1400 audit(1791231261.785:164): avc: denied { mount } for pid=5747 comm="syz-executor" name="/" dev="proc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:proc_t tclass=filesystem permissive=1 [ 52.558656][ T43] audit: type=1400 audit(1791231261.785:165): avc: denied { mounton } for pid=5747 comm="syz-executor" path="/syzkaller.kvsZKq/syz-tmp/newroot/sys/kernel/debug" dev="debugfs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:debugfs_t tclass=dir permissive=1 [ 52.559391][ T43] audit: type=1400 audit(1791231261.785:166): avc: denied { mounton } for pid=5747 comm="syz-executor" path="/syzkaller.kvsZKq/syz-tmp/newroot/proc/sys/fs/binfmt_misc" dev="proc" ino=1883 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:sysctl_fs_t tclass=dir permissive=1 [ 52.562202][ T43] audit: type=1400 audit(1791231261.795:167): avc: denied { unmount } for pid=5747 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1 [ 52.615030][ T5747] soft_limit_in_bytes is deprecated and will be removed. Writing any value to this file has no effect. Please report your usecase to linux-mm@kvack.org if you depend on this functionality. [ 53.664878][ T5773] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.665615][ T5773] bridge0: port 1(bridge_slave_0) entered disabled state [ 53.665712][ T5773] bridge_slave_0: entered allmulticast mode [ 53.667137][ T5773] bridge_slave_0: entered promiscuous mode [ 53.670451][ T5773] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.670523][ T5773] bridge0: port 2(bridge_slave_1) entered disabled state [ 53.671213][ T5773] bridge_slave_1: entered allmulticast mode [ 53.672646][ T5773] bridge_slave_1: entered promiscuous mode [ 53.693879][ T5773] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 53.696129][ T5773] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 53.714870][ T5773] team0: Port device team_slave_0 added [ 53.717083][ T5773] team0: Port device team_slave_1 added [ 53.733224][ T5773] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 53.733234][ T5773] 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. [ 53.733246][ T5773] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 53.734430][ T5773] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 53.734439][ T5773] 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. [ 53.734451][ T5773] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 53.761941][ T5773] hsr_slave_0: entered promiscuous mode [ 53.762748][ T5773] hsr_slave_1: entered promiscuous mode [ 53.869710][ T5773] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 53.874665][ T5773] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 53.875059][ T5773] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 53.879420][ T5773] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 53.879898][ T5773] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 53.884872][ T5773] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 53.886440][ T5773] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 53.893006][ T5773] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 53.934614][ T5773] 8021q: adding VLAN 0 to HW filter on device bond0 [ 53.944221][ T5773] 8021q: adding VLAN 0 to HW filter on device team0 [ 53.948671][ T379] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.948751][ T379] bridge0: port 1(bridge_slave_0) entered forwarding state [ 53.955001][ T379] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.955044][ T379] bridge0: port 2(bridge_slave_1) entered forwarding state [ 54.215616][ T5773] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 54.249023][ T5773] veth0_vlan: entered promiscuous mode [ 54.256093][ T5773] veth1_vlan: entered promiscuous mode [ 54.277545][ T5773] veth0_macvtap: entered promiscuous mode [ 54.281051][ T5773] veth1_macvtap: entered promiscuous mode [ 54.293738][ T5773] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 54.297952][ T5773] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 54.341823][ T13] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.341865][ T13] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.341894][ T13] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.341921][ T13] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.405839][ T13] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 54.427029][ T5813] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 54.427686][ T5813] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 54.428205][ T5813] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 54.429563][ T5813] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 54.430270][ T5813] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 54.520175][ T13] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 54.579898][ T13] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 54.611149][ T13] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 55.995876][ T38] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 55.996175][ T38] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 56.027669][ T64] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 56.027688][ T64] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 2026/10/05 20:14:25 executed programs: 0 [ 56.633359][ T5813] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 56.634843][ T5813] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 56.636128][ T5813] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 56.638035][ T5813] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 56.638590][ T5813] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 56.945193][ T13] bridge_slave_1: left allmulticast mode [ 56.945218][ T13] bridge_slave_1: left promiscuous mode [ 56.946015][ T13] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.949299][ T13] bridge_slave_0: left allmulticast mode [ 56.949318][ T13] bridge_slave_0: left promiscuous mode [ 56.949561][ T13] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.086343][ T13] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 57.089631][ T13] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 57.091322][ T13] bond0 (unregistering): Released all slaves [ 57.168779][ T13] hsr_slave_0: left promiscuous mode [ 57.169523][ T13] hsr_slave_1: left promiscuous mode [ 57.170273][ T13] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 57.170296][ T13] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 57.171270][ T13] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 57.171285][ T13] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 57.180561][ T13] veth1_macvtap: left promiscuous mode [ 57.180609][ T13] veth0_macvtap: left promiscuous mode [ 57.180696][ T13] veth1_vlan: left promiscuous mode [ 57.180770][ T13] veth0_vlan: left promiscuous mode [ 57.396654][ T13] team0 (unregistering): Port device team_slave_1 removed [ 57.416635][ T13] team0 (unregistering): Port device team_slave_0 removed [ 57.587865][ T43] kauditd_printk_skb: 20 callbacks suppressed [ 57.587883][ T43] audit: type=1400 audit(1791231266.815:188): avc: denied { write } for pid=5879 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1839 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 57.588164][ T43] audit: type=1400 audit(1791231266.815:189): avc: denied { create } for pid=5879 comm="dhcpcd-run-hook" name="resolv.conf.eth2.link" scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 57.588591][ T43] audit: type=1400 audit(1791231266.815:190): avc: denied { write } for pid=5879 comm="dhcpcd-run-hook" path="/run/dhcpcd/hook-state/resolv.conf.eth2.link" dev="tmpfs" ino=1936 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 57.589162][ T43] audit: type=1400 audit(1791231266.815:191): avc: denied { append } for pid=5879 comm="dhcpcd-run-hook" name="resolv.conf.eth2.link" dev="tmpfs" ino=1936 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 57.600834][ T5864] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.600918][ T5864] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.600973][ T5864] bridge_slave_0: entered allmulticast mode [ 57.602008][ T5864] bridge_slave_0: entered promiscuous mode [ 57.603315][ T5864] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.603353][ T5864] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.603404][ T5864] bridge_slave_1: entered allmulticast mode [ 57.604171][ T5864] bridge_slave_1: entered promiscuous mode [ 57.619127][ T5864] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.621834][ T5864] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.636644][ T5864] team0: Port device team_slave_0 added [ 57.638524][ T5864] team0: Port device team_slave_1 added [ 57.655076][ T5864] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 57.655087][ T5864] 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. [ 57.655099][ T5864] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 57.656312][ T5864] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 57.656322][ T5864] 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. [ 57.656341][ T5864] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 57.661256][ T43] audit: type=1400 audit(1791231266.885:192): avc: denied { write } for pid=5885 comm="rm" name="hook-state" dev="tmpfs" ino=1839 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 57.661303][ T43] audit: type=1400 audit(1791231266.885:193): avc: denied { unlink } for pid=5885 comm="rm" name="resolv.conf.eth2.link" dev="tmpfs" ino=1936 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 57.683294][ T5864] hsr_slave_0: entered promiscuous mode [ 57.683958][ T5864] hsr_slave_1: entered promiscuous mode [ 57.717503][ T5446] 8021q: adding VLAN 0 to HW filter on device eth2 [ 57.843063][ T43] audit: type=1400 audit(1791231267.075:194): avc: denied { write } for pid=5888 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1839 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 57.912168][ T43] audit: type=1400 audit(1791231267.145:195): avc: denied { write } for pid=5891 comm="rm" name="hook-state" dev="tmpfs" ino=1839 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 58.187368][ T5446] 8021q: adding VLAN 0 to HW filter on device eth3 [ 58.391372][ T43] audit: type=1400 audit(1791231267.615:196): avc: denied { write } for pid=5894 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1839 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 58.449796][ T43] audit: type=1400 audit(1791231267.675:197): avc: denied { write } for pid=5897 comm="rm" name="hook-state" dev="tmpfs" ino=1839 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 58.466637][ T5864] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 58.470655][ T5864] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 58.471460][ T5864] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 58.481411][ T5864] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 58.483373][ T5864] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 58.488195][ T5864] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 58.493141][ T5864] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 58.498968][ T5864] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 58.576208][ T5864] 8021q: adding VLAN 0 to HW filter on device bond0 [ 58.596574][ T5864] 8021q: adding VLAN 0 to HW filter on device team0 [ 58.650877][ T38] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.650961][ T38] bridge0: port 1(bridge_slave_0) entered forwarding state [ 58.660265][ T38] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.660350][ T38] bridge0: port 2(bridge_slave_1) entered forwarding state [ 58.712714][ T66] Bluetooth: hci0: command tx timeout [ 58.937161][ T5864] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 58.973179][ T5864] veth0_vlan: entered promiscuous mode [ 58.978408][ T5864] veth1_vlan: entered promiscuous mode [ 59.000604][ T5864] veth0_macvtap: entered promiscuous mode [ 59.006056][ T5864] veth1_macvtap: entered promiscuous mode [ 59.018215][ T5864] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 59.023410][ T5864] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 59.065512][ T64] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 59.065527][ T64] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 59.080625][ T38] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 59.080642][ T38] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 59.091980][ T5810] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.101758][ T13] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.102190][ T13] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.102222][ T13] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.106178][ T5922 ** replaying previous printk message ** [ 59.106178][ T5922] comedi comedi0: comedi_test: 1000000 microvolt, 100000 microsecond waveform attached [ 59.117770][ T5922] comedi comedi1: comedi_bond: 0:2 attached, 32 channels from 1 devices [ 59.117831][ T5922] [ 59.125229][ T5922] ============================================ [ 59.127140][ T5922] WARNING: possible recursive locking detected [ 59.129126][ T5922] syzkaller #0 Not tainted [ 59.130541][ T5922] -------------------------------------------- [ 59.132506][ T5922] syz.0.17/5922 is trying to acquire lock: [ 59.134343][ T5922] ffff88802d8728f0 (&dev->mutex#4){+.+.}-{4:4}, at: comedi_do_insn+0x2e/0x360 [ 59.136789][ T5922] [ 59.136789][ T5922] but task is already holding lock: [ 59.138992][ T5922] ffff88802d8720f0 (&dev->mutex#4){+.+.}-{4:4}, at: comedi_unlocked_ioctl+0x180/0x3310 [ 59.142011][ T5922] [ 59.142011][ T5922] other info that might help us debug this: [ 59.144497][ T5922] Possible unsafe locking scenario: [ 59.144497][ T5922] [ 59.146805][ T5922] CPU0 [ 59.147875][ T5922] ---- [ 59.148947][ T5922] lock(&dev->mutex#4); [ 59.150292][ T5922] lock(&dev->mutex#4); [ 59.151658][ T5922] [ 59.151658][ T5922] *** DEADLOCK *** [ 59.151658][ T5922] [ 59.154193][ T5922] May be due to missing lock nesting notation [ 59.154193][ T5922] [ 59.157132][ T5922] locks held by syz.0.17/5922: 1, last CPU#2: [ 59.159556][ T5922] #0: ffff88802d8720f0 (&dev->mutex#4){+.+.}-{4:4}, at: comedi_unlocked_ioctl+0x180/0x3310 [ 59.163163][ T5922] [ 59.163163][ T5922] stack backtrace: [ 59.165032][ T5922] CPU: 2 UID: 0 PID: 5922 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) [ 59.167889][ T5922] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 59.171072][ T5922] Call Trace: [ 59.172139][ T5922] [ 59.173127][ T5922] dump_stack_lvl+0x100/0x190 [ 59.174626][ T5922] print_deadlock_bug.cold+0xbd/0xca [ 59.176300][ T5922] __lock_acquire+0x13f4/0x1f40 [ 59.177857][ T5922] lock_acquire+0x1d1/0x380 [ 59.179301][ T5922] ? comedi_do_insn+0x2e/0x360 [ 59.180841][ T5922] ? __pfx___might_resched+0x10/0x10 [ 59.182534][ T5922] __mutex_lock+0x1a4/0x1bd0 [ 59.184005][ T5922] ? comedi_do_insn+0x2e/0x360 [ 59.185530][ T5922] ? comedi_do_insn+0x2e/0x360 [ 59.187051][ T5922] ? kernel_text_address+0x8d/0x100 [ 59.188705][ T5922] ? __pfx___mutex_lock+0x10/0x10 [ 59.190305][ T5922] ? lock_acquire+0x1d1/0x380 [ 59.191817][ T5922] ? comedi_dio_bitfield2+0xdb/0x420 [ 59.193502][ T5922] ? __pfx___might_resched+0x10/0x10 [ 59.195170][ T5922] ? rcu_is_watching+0x13/0xc0 [ 59.196686][ T5922] ? __up_read+0x333/0x980 [ 59.198125][ T5922] ? comedi_do_insn+0x2e/0x360 [ 59.199639][ T5922] comedi_do_insn+0x2e/0x360 [ 59.201133][ T5922] comedi_dio_bitfield2+0x3c0/0x420 [ 59.202780][ T5922] ? __pfx_comedi_dio_bitfield2+0x10/0x10 [ 59.204572][ T5922] bonding_dio_insn_bits+0x2b9/0x570 [ 59.206243][ T5922] ? __pfx_bonding_dio_insn_bits+0x10/0x10 [ 59.208079][ T5922] ? comedi_check_chanlist+0x27e/0x300 [ 59.209812][ T5922] parse_insn+0x1326/0x19f0 [ 59.211262][ T5922] ? __might_fault+0xc5/0x140 [ 59.212759][ T5922] ? __pfx_parse_insn+0x10/0x10 [ 59.214307][ T5922] do_insn_ioctl+0x152/0x4e0 [ 59.215769][ T5922] comedi_unlocked_ioctl+0xf68/0x3310 [ 59.217468][ T5922] ? tomoyo_path_number_perm+0x188/0x580 [ 59.219231][ T5922] ? __pfx_comedi_unlocked_ioctl+0x10/0x10 [ 59.221081][ T5922] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 59.222982][ T5922] ? do_vfs_ioctl+0x226/0x13e0 [ 59.224485][ T5922] ? __pfx_do_vfs_ioctl+0x10/0x10 [ 59.226081][ T5922] ? ioctl_has_perm.constprop.0.isra.0+0x380/0x540 [ 59.228152][ T5922] ? __pfx_ioctl_has_perm.constprop.0.isra.0+0x10/0x10 [ 59.230339][ T5922] ? selinux_file_ioctl+0x13b/0x290 [ 59.231982][ T5922] ? selinux_file_ioctl+0xb6/0x290 [ 59.233631][ T5922] ? __pfx_comedi_unlocked_ioctl+0x10/0x10 [ 59.235487][ T5922] __x64_sys_ioctl+0x18e/0x210 [ 59.237008][ T5922] do_syscall_64+0x123/0x790 [ 59.238503][ T5922] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 59.240378][ T5922] RIP: 0033:0x7f923f59e199 [ 59.241826][ T5922] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 [ 59.248240][ T5922] RSP: 002b:00007ffda4a1da98 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 59.250889][ T5922] RAX: ffffffffffffffda RBX: 00007f923f825fa0 RCX: 00007f923f59e199 [ 59.253382][ T5922] RDX: 0000200000000400 RSI: 000000008028640c RDI: 0000000000000004 [ 59.255858][ T5922] RBP: 00007f923f6350b8 R08: 0000000000000000 R09: 0000000000000000 [ 59.258342][ T5922] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 59.260871][ T5922] R13: 00007f923f825fac R14: 00007f923f825fa0 R15: 00007f923f825fa0 [ 59.263355][ T5922] [ 60.807147][ T5810] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 62.323812][ T5810] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 62.434022][ T5810] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 62.474801][ T5810] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 62.552198][ T5810] bridge_slave_1: left allmulticast mode [ 62.552213][ T5810] bridge_slave_1: left promiscuous mode [ 62.552281][ T5810] bridge0: port 2(bridge_slave_1) entered disabled state [ 62.554961][ T5810] bridge_slave_0: left allmulticast mode [ 62.554973][ T5810] bridge_slave_0: left promiscuous mode [ 62.555033][ T5810] bridge0: port 1(bridge_slave_0) entered disabled state [ 62.609187][ T5810] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 62.610637][ T5810] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 62.611493][ T5810] bond0 (unregistering): Released all slaves [ 62.669238][ T43] kauditd_printk_skb: 5 callbacks suppressed [ 62.669251][ T43] audit: type=1400 audit(1791231271.895:203): avc: denied { write } for pid=5929 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1839 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 62.700717][ T43] audit: type=1400 audit(1791231271.925:204): avc: denied { write } for pid=5932 comm="rm" name="hook-state" dev="tmpfs" ino=1839 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 62.720601][ T5446] 8021q: adding VLAN 0 to HW filter on device eth2 [ 62.773580][ T43] audit: type=1400 audit(1791231272.005:205): avc: denied { write } for pid=5936 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1839 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 62.804900][ T43] audit: type=1400 audit(1791231272.035:206): avc: denied { write } for pid=5939 comm="rm" name="hook-state" dev="tmpfs" ino=1839 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 62.825391][ T5810] hsr_slave_0: left promiscuous mode [ 62.825832][ T5810] hsr_slave_1: left promiscuous mode [ 62.826229][ T5810] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 62.826244][ T5810] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 62.826638][ T5810] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 62.826650][ T5810] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 62.829021][ T5810] veth1_macvtap: left promiscuous mode [ 62.829043][ T5810] veth0_macvtap: left promiscuous mode [ 62.829122][ T5810] veth1_vlan: left promiscuous mode [ 62.829159][ T5810] veth0_vlan: left promiscuous mode [ 62.888352][ T5810] team0 (unregistering): Port device team_slave_1 removed [ 62.890263][ T5810] team0 (unregistering): Port device team_slave_0 removed [ 62.915153][ T5446] 8021q: adding VLAN 0 to HW filter on device eth3 [ 62.971666][ T43] audit: type=1400 audit(1791231272.195:207): avc: denied { write } for pid=5942 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1839 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 63.008769][ T43] audit: type=1400 audit(1791231272.235:208): avc: denied { write } for pid=5945 comm="rm" name="hook-state" dev="tmpfs" ino=1839 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 63.037611][ T5446] 8021q: adding VLAN 0 to HW filter on device eth5 [ 63.081194][ T43] audit: type=1400 audit(1791231272.305:209): avc: denied { write } for pid=5948 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1839 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 63.122209][ T43] audit: type=1400 audit(1791231272.355:210): avc: denied { write } for pid=5951 comm="rm" name="hook-state" dev="tmpfs" ino=1839 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 63.145498][ T5446] 8021q: adding VLAN 0 to HW filter on device eth4