WARNING: suspicious RCU usage in _destroy_all_sets netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 bridge_slave_1: left allmulticast mode bridge_slave_1: left promiscuous mode bridge0: port 2(bridge_slave_1) entered disabled state bridge_slave_0: left allmulticast mode bridge_slave_0: left promiscuous mode bridge0: port 1(bridge_slave_0) entered disabled state bond0 (unregistering): (slave bond_slave_0): Releasing backup interface bond0 (unregistering): (slave bond_slave_1): Releasing backup interface bond0 (unregistering): Released all slaves hsr_slave_0: left promiscuous mode hsr_slave_1: left promiscuous mode batman_adv: batadv0: Interface deactivated: batadv_slave_0 batman_adv: batadv0: Removing interface: batadv_slave_0 batman_adv: batadv0: Interface deactivated: batadv_slave_1 batman_adv: batadv0: Removing interface: batadv_slave_1 veth1_macvtap: left promiscuous mode veth0_macvtap: left promiscuous mode veth1_vlan: left promiscuous mode veth0_vlan: left promiscuous mode team0 (unregistering): Port device team_slave_1 removed team0 (unregistering): Port device team_slave_0 removed ============================= WARNING: suspicious RCU usage 6.10.0-rc4-syzkaller-g6ba59ff42279 #0 Not tainted ----------------------------- net/netfilter/ipset/ip_set_core.c:1200 suspicious rcu_dereference_protected() usage! other info that might help us debug this: rcu_scheduler_active = 2, debug_locks = 1 3 locks held by kworker/u32:7/1095: #0: ffff8880162e4948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x12bf/0x1b60 kernel/workqueue.c:3206 #1: ffffc900042cfd80 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x957/0x1b60 kernel/workqueue.c:3207 #2: ffffffff8f7375d0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xbb/0xbf0 net/core/net_namespace.c:594 stack backtrace: CPU: 3 PID: 1095 Comm: kworker/u32:7 Not tainted 6.10.0-rc4-syzkaller-g6ba59ff42279 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 Workqueue: netns cleanup_net Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:114 lockdep_rcu_suspicious+0x20b/0x3b0 kernel/locking/lockdep.c:6712 _destroy_all_sets+0x261/0x6d0 net/netfilter/ipset/ip_set_core.c:1200 ip_set_net_exit+0x26/0x60 net/netfilter/ipset/ip_set_core.c:2396 ops_exit_list+0xb0/0x180 net/core/net_namespace.c:173 cleanup_net+0x5b7/0xbf0 net/core/net_namespace.c:640 process_one_work+0x9fb/0x1b60 kernel/workqueue.c:3231 process_scheduled_works kernel/workqueue.c:3312 [inline] worker_thread+0x6c8/0xf70 kernel/workqueue.c:3393 kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 ============================= WARNING: suspicious RCU usage 6.10.0-rc4-syzkaller-g6ba59ff42279 #0 Not tainted ----------------------------- net/netfilter/ipset/ip_set_core.c:1211 suspicious rcu_dereference_protected() usage! other info that might help us debug this: rcu_scheduler_active = 2, debug_locks = 1 3 locks held by kworker/u32:7/1095: #0: ffff8880162e4948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x12bf/0x1b60 kernel/workqueue.c:3206 #1: ffffc900042cfd80 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x957/0x1b60 kernel/workqueue.c:3207 #2: ffffffff8f7375d0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xbb/0xbf0 net/core/net_namespace.c:594 stack backtrace: CPU: 3 PID: 1095 Comm: kworker/u32:7 Not tainted 6.10.0-rc4-syzkaller-g6ba59ff42279 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 Workqueue: netns cleanup_net Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:114 lockdep_rcu_suspicious+0x20b/0x3b0 kernel/locking/lockdep.c:6712 _destroy_all_sets+0x4e6/0x6d0 net/netfilter/ipset/ip_set_core.c:1211 ip_set_net_exit+0x26/0x60 net/netfilter/ipset/ip_set_core.c:2396 ops_exit_list+0xb0/0x180 net/core/net_namespace.c:173 cleanup_net+0x5b7/0xbf0 net/core/net_namespace.c:640 process_one_work+0x9fb/0x1b60 kernel/workqueue.c:3231 process_scheduled_works kernel/workqueue.c:3312 [inline] worker_thread+0x6c8/0xf70 kernel/workqueue.c:3393 kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 [ 53.050107][ T39] audit: type=1400 audit(1718612817.099:82): avc: denied { siginh } for pid=5175 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 53.467190][ T39] audit: type=1400 audit(1718612817.539:83): avc: denied { write } for pid=5179 comm="sftp-server" path="pipe:[2019]" dev="pipefs" ino=2019 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1 [ 54.723290][ T39] audit: type=1400 audit(1718612818.799:84): avc: denied { read } for pid=4675 comm="syslogd" name="log" dev="sda1" ino=1915 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:var_t tclass=lnk_file permissive=1 [ 54.732345][ T39] audit: type=1400 audit(1718612818.799:85): avc: denied { append } for pid=4675 comm="syslogd" name="messages" dev="tmpfs" ino=3 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 54.743027][ T39] audit: type=1400 audit(1718612818.799:86): avc: denied { open } for pid=4675 comm="syslogd" path="/tmp/messages" dev="tmpfs" ino=3 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 54.751455][ T39] audit: type=1400 audit(1718612818.799:87): avc: denied { getattr } for pid=4675 comm="syslogd" path="/tmp/messages" dev="tmpfs" ino=3 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 Warning: Permanently added '[localhost]:12719' (ED25519) to the list of known hosts. [ 59.536507][ T39] audit: type=1400 audit(1718612823.609:88): avc: denied { execute } for pid=5192 comm="sh" name="syz-fuzzer" dev="sda1" ino=1924 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:etc_runtime_t tclass=file permissive=1 [ 59.549452][ T39] audit: type=1400 audit(1718612823.609:89): avc: denied { execute_no_trans } for pid=5192 comm="sh" path="/syz-fuzzer" dev="sda1" ino=1924 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:etc_runtime_t tclass=file permissive=1 2024/06/17 08:27:03 fuzzer started 2024/06/17 08:27:04 connecting to host at localhost:36429 2024/06/17 08:27:04 checking machine... 2024/06/17 08:27:04 checking revisions... [ 60.260086][ T39] audit: type=1400 audit(1718612824.329:90): avc: denied { getattr } for pid=5192 comm="syz-fuzzer" path="user:[4026531837]" dev="nsfs" ino=4026531837 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:nsfs_t tclass=file permissive=1 [ 60.268945][ T39] audit: type=1400 audit(1718612824.339:91): avc: denied { read } for pid=5192 comm="syz-fuzzer" dev="nsfs" ino=4026531837 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:nsfs_t tclass=file permissive=1 [ 60.276817][ T39] audit: type=1400 audit(1718612824.339:92): avc: denied { open } for pid=5192 comm="syz-fuzzer" path="user:[4026531837]" dev="nsfs" ino=4026531837 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:nsfs_t tclass=file permissive=1 2024/06/17 08:27:04 testing simple program... [ 60.285656][ T39] audit: type=1400 audit(1718612824.349:93): avc: denied { read } for pid=5192 comm="syz-fuzzer" name="raw-gadget" dev="devtmpfs" ino=761 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 60.296471][ T39] audit: type=1400 audit(1718612824.349:94): avc: denied { open } for pid=5192 comm="syz-fuzzer" path="/dev/raw-gadget" dev="devtmpfs" ino=761 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 60.306991][ T39] audit: type=1400 audit(1718612824.349:95): avc: denied { read } for pid=5192 comm="syz-fuzzer" name="vhci" dev="devtmpfs" ino=1105 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:vhost_device_t tclass=chr_file permissive=1 [ 60.317337][ T39] audit: type=1400 audit(1718612824.349:96): avc: denied { open } for pid=5192 comm="syz-fuzzer" path="/dev/vhci" dev="devtmpfs" ino=1105 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:vhost_device_t tclass=chr_file permissive=1 [ 60.328473][ T39] audit: type=1400 audit(1718612824.399:97): avc: denied { mounton } for pid=5203 comm="syz-executor" path="/syzcgroup/unified" dev="sda1" ino=1927 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:root_t tclass=dir permissive=1 [ 60.329310][ T5203] cgroup: Unknown subsys name 'net' [ 60.491007][ T5203] cgroup: Unknown subsys name 'rlimit' [ 60.678048][ T5204] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 61.870534][ T5203] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 62.086483][ T4637] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 62.091087][ T4637] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 62.095514][ T4637] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 62.100410][ T4637] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 62.104360][ T4637] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 62.107801][ T4637] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 62.263434][ T5206] chnl_net:caif_netlink_parms(): no params data found [ 62.365698][ T5206] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.369529][ T5206] bridge0: port 1(bridge_slave_0) entered disabled state [ 62.373834][ T5206] bridge_slave_0: entered allmulticast mode [ 62.377464][ T5206] bridge_slave_0: entered promiscuous mode [ 62.383080][ T5206] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.386118][ T5206] bridge0: port 2(bridge_slave_1) entered disabled state [ 62.389099][ T5206] bridge_slave_1: entered allmulticast mode [ 62.392508][ T5206] bridge_slave_1: entered promiscuous mode [ 62.433825][ T5206] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 62.440570][ T5206] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 62.488540][ T5206] team0: Port device team_slave_0 added [ 62.492672][ T5206] team0: Port device team_slave_1 added [ 62.528678][ T5206] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 62.530793][ T5206] 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 1560 would solve the problem. [ 62.540253][ T5206] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 62.548552][ T5206] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 62.551764][ T5206] 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 1560 would solve the problem. [ 62.563114][ T5206] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 62.639090][ T5206] hsr_slave_0: entered promiscuous mode [ 62.642274][ T5206] hsr_slave_1: entered promiscuous mode [ 62.795451][ T5206] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 62.801188][ T5206] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 62.806983][ T5206] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 62.812327][ T5206] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 62.834477][ T5206] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.836991][ T5206] bridge0: port 2(bridge_slave_1) entered forwarding state [ 62.840029][ T5206] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.842590][ T5206] bridge0: port 1(bridge_slave_0) entered forwarding state [ 62.911280][ T5206] 8021q: adding VLAN 0 to HW filter on device bond0 [ 62.930819][ T103] bridge0: port 1(bridge_slave_0) entered disabled state [ 62.936728][ T103] bridge0: port 2(bridge_slave_1) entered disabled state [ 62.955514][ T5206] 8021q: adding VLAN 0 to HW filter on device team0 [ 62.967549][ T827] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.970451][ T827] bridge0: port 1(bridge_slave_0) entered forwarding state [ 62.985334][ T817] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.988544][ T817] bridge0: port 2(bridge_slave_1) entered forwarding state executing program [ 63.142677][ T5206] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 63.186461][ T5206] veth0_vlan: entered promiscuous mode [ 63.195228][ T5206] veth1_vlan: entered promiscuous mode [ 63.222858][ T5206] veth0_macvtap: entered promiscuous mode [ 63.230347][ T5206] veth1_macvtap: entered promiscuous mode [ 63.250814][ T5206] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 63.258891][ T5206] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 63.265769][ T5206] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 63.269880][ T5206] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 63.274117][ T5206] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 63.278051][ T5206] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 63.355087][ T73] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 63.358826][ T73] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 63.392850][ T73] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 63.396311][ T73] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 2024/06/17 08:27:07 building call list... executing program [ 66.492519][ T1095] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 66.693494][ T39] kauditd_printk_skb: 26 callbacks suppressed [ 66.693510][ T39] audit: type=1400 audit(1718612830.769:124): avc: denied { read } for pid=5192 comm="syz-fuzzer" name="fuse" dev="devtmpfs" ino=105 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fuse_device_t tclass=chr_file permissive=1 [ 66.706272][ T39] audit: type=1400 audit(1718612830.769:125): avc: denied { open } for pid=5192 comm="syz-fuzzer" path="/dev/fuse" dev="devtmpfs" ino=105 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fuse_device_t tclass=chr_file permissive=1 [ 66.720770][ T39] audit: type=1400 audit(1718612830.789:126): avc: denied { read } for pid=5192 comm="syz-fuzzer" name="autofs" dev="devtmpfs" ino=104 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:autofs_device_t tclass=chr_file permissive=1 [ 66.728985][ T39] audit: type=1400 audit(1718612830.789:127): avc: denied { open } for pid=5192 comm="syz-fuzzer" path="/dev/autofs" dev="devtmpfs" ino=104 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:autofs_device_t tclass=chr_file permissive=1 [ 66.736983][ T39] audit: type=1400 audit(1718612830.789:128): avc: denied { read } for pid=5192 comm="syz-fuzzer" name="btrfs-control" dev="devtmpfs" ino=1150 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:lvm_control_t tclass=chr_file permissive=1 [ 66.745507][ T39] audit: type=1400 audit(1718612830.789:129): avc: denied { open } for pid=5192 comm="syz-fuzzer" path="/dev/btrfs-control" dev="devtmpfs" ino=1150 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:lvm_control_t tclass=chr_file permissive=1 [ 66.754397][ T39] audit: type=1400 audit(1718612830.789:130): avc: denied { read } for pid=5192 comm="syz-fuzzer" name="cachefiles" dev="devtmpfs" ino=4 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cachefiles_device_t tclass=chr_file permissive=1 [ 66.764255][ T39] audit: type=1400 audit(1718612830.789:131): avc: denied { open } for pid=5192 comm="syz-fuzzer" path="/dev/cachefiles" dev="devtmpfs" ino=4 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cachefiles_device_t tclass=chr_file permissive=1 [ 66.774377][ T39] audit: type=1400 audit(1718612830.809:132): avc: denied { read } for pid=5192 comm="syz-fuzzer" name="renderD128" dev="devtmpfs" ino=636 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:dri_device_t tclass=chr_file permissive=1 [ 66.784116][ T39] audit: type=1400 audit(1718612830.809:133): avc: denied { open } for pid=5192 comm="syz-fuzzer" path="/dev/dri/renderD128" dev="devtmpfs" ino=636 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:dri_device_t tclass=chr_file permissive=1 [ 67.030790][ T5195] can: request_module (can-proto-0) failed. [ 67.060601][ T5195] can: request_module (can-proto-0) failed. [ 67.089163][ T5195] can: request_module (can-proto-0) failed. [ 67.630430][ T5195] UDPLite6: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list [ 67.994863][ T5195] UDPLite: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list [ 69.125311][ T1095] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 69.192890][ T1095] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 69.286926][ T1095] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 69.390239][ T1095] bridge_slave_1: left allmulticast mode [ 69.393011][ T1095] bridge_slave_1: left promiscuous mode [ 69.396583][ T1095] bridge0: port 2(bridge_slave_1) entered disabled state [ 69.405954][ T1095] bridge_slave_0: left allmulticast mode [ 69.408366][ T1095] bridge_slave_0: left promiscuous mode [ 69.410881][ T1095] bridge0: port 1(bridge_slave_0) entered disabled state [ 69.621598][ T1095] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 69.628615][ T1095] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 69.636013][ T1095] bond0 (unregistering): Released all slaves [ 70.033136][ T1095] hsr_slave_0: left promiscuous mode [ 70.036892][ T1095] hsr_slave_1: left promiscuous mode [ 70.040331][ T1095] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 70.043762][ T1095] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 70.048231][ T1095] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 70.051403][ T1095] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 70.070117][ T1095] veth1_macvtap: left promiscuous mode [ 70.073786][ T1095] veth0_macvtap: left promiscuous mode [ 70.075833][ T1095] veth1_vlan: left promiscuous mode [ 70.077820][ T1095] veth0_vlan: left promiscuous mode [ 70.549574][ T1095] team0 (unregistering): Port device team_slave_1 removed [ 70.603421][ T1095] team0 (unregistering): Port device team_slave_0 removed [ 71.403957][ T1095] [ 71.405178][ T1095] ============================= [ 71.407268][ T1095] WARNING: suspicious RCU usage [ 71.409410][ T1095] 6.10.0-rc4-syzkaller-g6ba59ff42279 #0 Not tainted [ 71.412353][ T1095] ----------------------------- [ 71.414430][ T1095] net/netfilter/ipset/ip_set_core.c:1200 suspicious rcu_dereference_protected() usage! [ 71.418470][ T1095] [ 71.418470][ T1095] other info that might help us debug this: [ 71.418470][ T1095] [ 71.422839][ T1095] [ 71.422839][ T1095] rcu_scheduler_active = 2, debug_locks = 1 [ 71.426173][ T1095] 3 locks held by kworker/u32:7/1095: [ 71.428374][ T1095] #0: ffff8880162e4948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x12bf/0x1b60 [ 71.432741][ T1095] #1: ffffc900042cfd80 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x957/0x1b60 [ 71.436992][ T1095] #2: ffffffff8f7375d0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xbb/0xbf0 [ 71.440880][ T1095] [ 71.440880][ T1095] stack backtrace: [ 71.443515][ T1095] CPU: 3 PID: 1095 Comm: kworker/u32:7 Not tainted 6.10.0-rc4-syzkaller-g6ba59ff42279 #0 [ 71.447645][ T1095] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 [ 71.452029][ T1095] Workqueue: netns cleanup_net [ 71.454119][ T1095] Call Trace: [ 71.455585][ T1095] [ 71.456894][ T1095] dump_stack_lvl+0x16c/0x1f0 [ 71.459018][ T1095] lockdep_rcu_suspicious+0x20b/0x3b0 [ 71.461345][ T1095] _destroy_all_sets+0x261/0x6d0 [ 71.463441][ T1095] ? __pfx_ip_set_net_exit+0x10/0x10 [ 71.465730][ T1095] ip_set_net_exit+0x26/0x60 [ 71.467738][ T1095] ops_exit_list+0xb0/0x180 [ 71.469731][ T1095] cleanup_net+0x5b7/0xbf0 [ 71.471659][ T1095] ? __pfx_cleanup_net+0x10/0x10 [ 71.473803][ T1095] process_one_work+0x9fb/0x1b60 [ 71.475941][ T1095] ? __pfx_lock_acquire+0x10/0x10 [ 71.478111][ T1095] ? __pfx_process_one_work+0x10/0x10 [ 71.480465][ T1095] ? assign_work+0x1a0/0x250 [ 71.482471][ T1095] worker_thread+0x6c8/0xf70 [ 71.484488][ T1095] ? __pfx_worker_thread+0x10/0x10 [ 71.486706][ T1095] kthread+0x2c1/0x3a0 [ 71.488473][ T1095] ? _raw_spin_unlock_irq+0x23/0x50 [ 71.490741][ T1095] ? __pfx_kthread+0x10/0x10 [ 71.492753][ T1095] ret_from_fork+0x45/0x80 [ 71.494717][ T1095] ? __pfx_kthread+0x10/0x10 [ 71.496730][ T1095] ret_from_fork_asm+0x1a/0x30 [ 71.498836][ T1095] [ 71.500411][ T1095] [ 71.501492][ T1095] ============================= [ 71.503695][ T1095] WARNING: suspicious RCU usage [ 71.505810][ T1095] 6.10.0-rc4-syzkaller-g6ba59ff42279 #0 Not tainted [ 71.508609][ T1095] ----------------------------- [ 71.510701][ T1095] net/netfilter/ipset/ip_set_core.c:1211 suspicious rcu_dereference_protected() usage! [ 71.514889][ T1095] [ 71.514889][ T1095] other info that might help us debug this: [ 71.514889][ T1095] [ 71.519229][ T1095] [ 71.519229][ T1095] rcu_scheduler_active = 2, debug_locks = 1 [ 71.522738][ T1095] 3 locks held by kworker/u32:7/1095: [ 71.525035][ T1095] #0: ffff8880162e4948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x12bf/0x1b60 [ 71.529434][ T1095] #1: ffffc900042cfd80 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x957/0x1b60 [ 71.533652][ T1095] #2: ffffffff8f7375d0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xbb/0xbf0 [ 71.537608][ T1095] [ 71.537608][ T1095] stack backtrace: [ 71.540151][ T1095] CPU: 3 PID: 1095 Comm: kworker/u32:7 Not tainted 6.10.0-rc4-syzkaller-g6ba59ff42279 #0 [ 71.544372][ T1095] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 [ 71.548688][ T1095] Workqueue: netns cleanup_net [ 71.550766][ T1095] Call Trace: [ 71.552219][ T1095] [ 71.553525][ T1095] dump_stack_lvl+0x16c/0x1f0 [ 71.555564][ T1095] lockdep_rcu_suspicious+0x20b/0x3b0 [ 71.557901][ T1095] _destroy_all_sets+0x4e6/0x6d0 [ 71.560054][ T1095] ? __pfx_ip_set_net_exit+0x10/0x10 [ 71.562387][ T1095] ip_set_net_exit+0x26/0x60 [ 71.564378][ T1095] ops_exit_list+0xb0/0x180 [ 71.566359][ T1095] cleanup_net+0x5b7/0xbf0 [ 71.568283][ T1095] ? __pfx_cleanup_net+0x10/0x10 [ 71.570460][ T1095] process_one_work+0x9fb/0x1b60 [ 71.572627][ T1095] ? __pfx_lock_acquire+0x10/0x10 [ 71.574804][ T1095] ? __pfx_process_one_work+0x10/0x10 [ 71.577114][ T1095] ? assign_work+0x1a0/0x250 [ 71.579203][ T1095] worker_thread+0x6c8/0xf70 [ 71.581258][ T1095] ? __pfx_worker_thread+0x10/0x10 [ 71.583502][ T1095] kthread+0x2c1/0x3a0 [ 71.585287][ T1095] ? _raw_spin_unlock_irq+0x23/0x50 [ 71.587523][ T1095] ? __pfx_kthread+0x10/0x10 [ 71.589519][ T1095] ret_from_fork+0x45/0x80 [ 71.591447][ T1095] ? __pfx_kthread+0x10/0x10 [ 71.593485][ T1095] ret_from_fork_asm+0x1a/0x30 [ 71.595553][ T1095] VM DIAGNOSIS: 08:27:22 Registers: info registers vcpu 0 CPU#0 RAX=000000000009ff51 RBX=0000000000000000 RCX=ffffffff8ae83889 RDX=0000000000000000 RSI=ffffffff8b2caf60 RDI=ffffffff8b900680 RBP=fffffbfff1b12af8 RSP=ffffffff8d807e20 R8 =0000000000000001 R9 =ffffed100d606fe5 R10=ffff88806b037f2b R11=0000000000000000 R12=0000000000000000 R13=ffffffff8d8957c0 R14=ffffffff8fe47cd0 R15=0000000000000000 RIP=ffffffff8ae84c7f RFL=00000242 [---Z---] CPL=0 II=0 A20=1 SMM=0 HLT=1 ES =0000 0000000000000000 ffffffff 00c00000 CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA] SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA] DS =0000 0000000000000000 ffffffff 00c00000 FS =0000 0000000000000000 ffffffff 00c00000 GS =0000 ffff88806b000000 ffffffff 00c00000 LDT=0000 0000000000000000 ffffffff 00c00000 TR =0040 fffffe0000003000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000001000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007ffcb19da000 CR3=000000002c2de000 CR4=00350ef0 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000fffe0ff0 DR7=0000000000000400 EFER=0000000000000d01 FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80 FPR0=0000000000000000 0000 FPR1=0000000000000000 0000 FPR2=0000000000000000 0000 FPR3=0000000000000000 0000 FPR4=0000000000000000 0000 FPR5=0000000000000000 0000 FPR6=0000000000000000 0000 FPR7=0000000000000000 0000 Opmask00=0000000000062003 Opmask01=00000000001000c0 Opmask02=000000000fffffff Opmask03=0000000000000000 Opmask04=0000000000000000 Opmask05=0000000000000000 Opmask06=0000000000000000 Opmask07=0000000000000000 ZMM00=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000033687465 ZMM01=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00007ffcb19c9d70 0000003000000008 ZMM02=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 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1a1a1a1a1a1a1a1a 1a1a1a1a1a1a1a1a ZMM31=0000000000000000 0000000000000000 0000000000000000 0000000000000000 2020202020202020 2020202020202020 2020202020202020 2020202020202020 info registers vcpu 1 CPU#1 RAX=0000000000056915 RBX=0000000000000001 RCX=ffffffff8ae83889 RDX=0000000000000000 RSI=ffffffff8b2caf60 RDI=ffffffff8b900680 RBP=ffffed1002fd6910 RSP=ffffc90000187e08 R8 =0000000000000001 R9 =ffffed100d626fe5 R10=ffff88806b137f2b R11=0000000000000000 R12=0000000000000001 R13=ffff888017eb4880 R14=ffffffff8fe47cd0 R15=0000000000000000 RIP=ffffffff8ae84c7f RFL=00000242 [---Z---] CPL=0 II=0 A20=1 SMM=0 HLT=1 ES =0000 0000000000000000 ffffffff 00c00000 CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA] SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA] DS =0000 0000000000000000 ffffffff 00c00000 FS =0000 0000000000000000 ffffffff 00c00000 GS =0000 ffff88806b100000 ffffffff 00c00000 LDT=0000 0000000000000000 ffffffff 00c00000 TR =0040 fffffe000004a000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000048000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=000055dc00600680 CR3=000000000d97a000 CR4=00350ef0 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000fffe0ff0 DR7=0000000000000400 EFER=0000000000000d01 FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80 FPR0=0000000000000000 0000 FPR1=0000000000000000 0000 FPR2=0000000000000000 0000 FPR3=0000000000000000 0000 FPR4=0000000000000000 0000 FPR5=0000000000000000 0000 FPR6=0000000000000000 0000 FPR7=0000000000000000 0000 Opmask00=0000000004040003 Opmask01=0000000000000001 Opmask02=00000000ffff3f01 Opmask03=0000000000000000 Opmask04=0000000000000000 Opmask05=0000000000000000 Opmask06=0000000000000000 Opmask07=0000000000000000 ZMM00=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00007ffcb19e9c00 0000003000000010 ZMM01=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 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0000000000000000 ffffffff 00c00000 GS =0000 ffff88806b200000 ffffffff 00c00000 LDT=0000 0000000000000000 ffffffff 00c00000 TR =0040 fffffe0000091000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe000008f000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007fc611d960e8 CR3=0000000027366000 CR4=00350ef0 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000fffe0ff0 DR7=0000000000000400 EFER=0000000000000d01 FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80 FPR0=0000000000000000 0000 FPR1=0000000000000000 0000 FPR2=0000000000000000 0000 FPR3=0000000000000000 0000 FPR4=0000000000000000 0000 FPR5=0000000000000000 0000 FPR6=0000000000000000 0000 FPR7=0000000000000000 0000 Opmask00=0000000004040101 Opmask01=0000000000000000 Opmask02=000000000fffffff Opmask03=0000000000000000 Opmask04=0000000000000000 Opmask05=0000000000000000 Opmask06=0000000000000000 Opmask07=0000000000000000 ZMM00=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 000030316270616c ZMM01=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00007ffcb19e9d00 0000003000000010 ZMM02=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 2e2e2e2e2e2e2e2e 2e2e2e2e2e2e2e2e ZMM03=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00000000ff000000 ZMM04=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM05=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ffffffffffff0000 0000000000000000 ZMM06=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM07=0000000000000000 0000000000000000 0000000000000000 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0000000000000000 0000000000000041 0000000000000000 00306e6170772f74 656e2f307968702f ZMM22=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0e0709027e1a1045 7615041f3953691d 5316010116055211 5f5069530a040016 ZMM23=0000000000000000 0000000000000000 0000000000000000 0000000000000000 1f475f7f7f7f5f5f 7f7f5e5f7f5f7d7f 7f1f1b5f3f57777f 5f5b7f7f7f5f7f1f ZMM24=0000000000000000 0000000000000000 0000000000000000 0000000000000000 207325203a732500 36657361656c2e73 2573252f64637063 68642f62642f7261 ZMM25=0000000000000000 0000000000000000 0000000000000000 0000000000000000 612037202031206e 61636564006e6966 65706f2037362070 616361360a690064 ZMM26=0000000000000000 0000000000000000 0000000000000000 0000000000000000 612037200a312065 2063656400646461 2070692037362061 362038200a360064 ZMM27=0000000000000000 0000000000000000 0000000000000000 0000000000000000 bfbfbfbfbfbfbfbf bfbfbfbfbfbfbfbf bfbfbfbfbfbfbfbf bfbf2b313423342c ZMM28=0000000000000000 0000000000000000 0000000000000000 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0000000000000000 0000000000000000 bfbfbfbfbfbfbfbf bfbfbfbfbfbfbfbf bfbfbfbfbfbfbfbf bfbf2b313423342c ZMM28=0000000000000000 0000000000000000 0000000000000000 0000000000000000 262821df2e2e33df 3228df3232202b22 df312e232d2435bf 2324353124322431 ZMM29=0000000000000000 0000000000000000 0000000000000000 0000000000000000 4141414141414141 4141414141414141 4141414141414141 4141414141414141 ZMM30=0000000000000000 0000000000000000 0000000000000000 0000000000000000 1a1a1a1a1a1a1a1a 1a1a1a1a1a1a1a1a 1a1a1a1a1a1a1a1a 1a1a1a1a1a1a1a1a ZMM31=0000000000000000 0000000000000000 0000000000000000 0000000000000000 2020202020202020 2020202020202020 2020202020202020 2020202020202020 syzkaller build log: go env (err=) GO111MODULE='auto' GOARCH='amd64' GOBIN='' GOCACHE='/syzkaller/.cache/go-build' GOENV='/syzkaller/.config/go/env' GOEXE='' GOEXPERIMENT='' GOFLAGS='' GOHOSTARCH='amd64' GOHOSTOS='linux' GOINSECURE='' GOMODCACHE='/syzkaller/jobs/linux/gopath/pkg/mod' GONOPROXY='' GONOSUMDB='' GOOS='linux' GOPATH='/syzkaller/jobs/linux/gopath' GOPRIVATE='' GOPROXY='https://proxy.golang.org,direct' GOROOT='/usr/local/go' GOSUMDB='sum.golang.org' GOTMPDIR='' GOTOOLCHAIN='auto' GOTOOLDIR='/usr/local/go/pkg/tool/linux_amd64' GOVCS='' GOVERSION='go1.21.4' GCCGO='gccgo' GOAMD64='v1' AR='ar' CC='gcc' CXX='g++' CGO_ENABLED='1' GOMOD='/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/go.mod' GOWORK='' CGO_CFLAGS='-O2 -g' CGO_CPPFLAGS='' CGO_CXXFLAGS='-O2 -g' CGO_FFLAGS='-O2 -g' CGO_LDFLAGS='-O2 -g' PKG_CONFIG='pkg-config' GOGCCFLAGS='-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/tmp/go-build69418406=/tmp/go-build -gno-record-gcc-switches' git status (err=) HEAD detached at 0ea90952b nothing to commit, working tree clean tput: No value for $TERM and no -T specified tput: No value for $TERM and no -T specified Makefile:31: run command via tools/syz-env for best compatibility, see: Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env go list -f '{{.Stale}}' ./sys/syz-sysgen | grep -q false || go install ./sys/syz-sysgen make .descriptions tput: No value for $TERM and no -T specified tput: No value for $TERM and no -T specified Makefile:31: run command via tools/syz-env for best compatibility, see: Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env bin/syz-sysgen touch .descriptions GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=0ea90952bdac100bde3149fa2a7818ba7af943b4 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20240322-161956'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-fuzzer github.com/google/syzkaller/syz-fuzzer GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=0ea90952bdac100bde3149fa2a7818ba7af943b4 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20240322-161956'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-execprog github.com/google/syzkaller/tools/syz-execprog GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=0ea90952bdac100bde3149fa2a7818ba7af943b4 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20240322-161956'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-stress github.com/google/syzkaller/tools/syz-stress mkdir -p ./bin/linux_amd64 gcc -o ./bin/linux_amd64/syz-executor executor/executor.cc \ -m64 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-format-overflow -Wno-unused-but-set-variable -Wno-unused-command-line-argument -static-pie -fpermissive -w -DGOOS_linux=1 -DGOARCH_amd64=1 \ -DHOSTGOOS_linux=1 -DGIT_REVISION=\"0ea90952bdac100bde3149fa2a7818ba7af943b4\"