UDF-fs: Scanning with blocksize 512 failed UDF-fs: warning (device loop0): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 1024 failed UDF-fs: warning (device loop0): udf_load_vrs: No VRS found ====================================================== WARNING: possible circular locking dependency detected 4.14.198-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor.3/18971 is trying to acquire lock: (&sig->cred_guard_mutex){+.+.}, at: [] lock_trace fs/proc/base.c:407 [inline] (&sig->cred_guard_mutex){+.+.}, at: [] proc_pid_stack+0x13f/0x2f0 fs/proc/base.c:457 but task is already holding lock: (&p->lock){+.+.}, at: [] seq_read+0xba/0x1120 fs/seq_file.c:165 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #3 (&p->lock){+.+.}: __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xc4/0x1310 kernel/locking/mutex.c:893 seq_read+0xba/0x1120 fs/seq_file.c:165 proc_reg_read+0xee/0x1a0 fs/proc/inode.c:217 do_loop_readv_writev fs/read_write.c:695 [inline] do_loop_readv_writev fs/read_write.c:682 [inline] do_iter_read+0x3eb/0x5b0 fs/read_write.c:919 vfs_readv+0xc8/0x120 fs/read_write.c:981 kernel_readv fs/splice.c:361 [inline] default_file_splice_read+0x418/0x910 fs/splice.c:416 do_splice_to+0xfb/0x140 fs/splice.c:880 splice_direct_to_actor+0x207/0x730 fs/splice.c:952 do_splice_direct+0x164/0x210 fs/splice.c:1061 do_sendfile+0x47f/0xb30 fs/read_write.c:1441 SYSC_sendfile64 fs/read_write.c:1502 [inline] SyS_sendfile64+0xff/0x110 fs/read_write.c:1488 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb -> #2 (sb_writers#3){.+.+}: percpu_down_read_preempt_disable include/linux/percpu-rwsem.h:36 [inline] percpu_down_read include/linux/percpu-rwsem.h:59 [inline] __sb_start_write+0x19a/0x2e0 fs/super.c:1363 sb_start_write include/linux/fs.h:1549 [inline] mnt_want_write+0x3a/0xb0 fs/namespace.c:386 ovl_do_remove+0x65/0xaf0 fs/overlayfs/dir.c:759 vfs_rmdir.part.0+0x144/0x390 fs/namei.c:3908 vfs_rmdir fs/namei.c:3893 [inline] do_rmdir+0x334/0x3c0 fs/namei.c:3968 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb -> #1 (&ovl_i_mutex_dir_key[depth]#2){++++}: down_read+0x36/0x80 kernel/locking/rwsem.c:24 inode_lock_shared include/linux/fs.h:729 [inline] do_last fs/namei.c:3333 [inline] path_openat+0x149b/0x2970 fs/namei.c:3569 do_filp_open+0x179/0x3c0 fs/namei.c:3603 do_open_execat+0xd3/0x450 fs/exec.c:849 do_execveat_common+0x711/0x1f30 fs/exec.c:1742 do_execve fs/exec.c:1847 [inline] SYSC_execve fs/exec.c:1928 [inline] SyS_execve+0x3b/0x50 fs/exec.c:1923 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb -> #0 (&sig->cred_guard_mutex){+.+.}: lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998 __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xc4/0x1310 kernel/locking/mutex.c:893 lock_trace fs/proc/base.c:407 [inline] proc_pid_stack+0x13f/0x2f0 fs/proc/base.c:457 proc_single_show+0xe7/0x150 fs/proc/base.c:761 seq_read+0x4cf/0x1120 fs/seq_file.c:237 do_loop_readv_writev fs/read_write.c:695 [inline] do_loop_readv_writev fs/read_write.c:682 [inline] do_iter_read+0x3eb/0x5b0 fs/read_write.c:919 vfs_readv+0xc8/0x120 fs/read_write.c:981 do_preadv fs/read_write.c:1065 [inline] SYSC_preadv fs/read_write.c:1115 [inline] SyS_preadv+0x15a/0x200 fs/read_write.c:1110 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb other info that might help us debug this: Chain exists of: &sig->cred_guard_mutex --> sb_writers#3 --> &p->lock Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&p->lock); lock(sb_writers#3); lock(&p->lock); lock(&sig->cred_guard_mutex); *** DEADLOCK *** 1 lock held by syz-executor.3/18971: #0: (&p->lock){+.+.}, at: [] seq_read+0xba/0x1120 fs/seq_file.c:165 stack backtrace: CPU: 1 PID: 18971 Comm: syz-executor.3 Not tainted 4.14.198-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x283 lib/dump_stack.c:58 print_circular_bug.constprop.0.cold+0x2d7/0x41e kernel/locking/lockdep.c:1258 check_prev_add kernel/locking/lockdep.c:1905 [inline] check_prevs_add kernel/locking/lockdep.c:2022 [inline] validate_chain kernel/locking/lockdep.c:2464 [inline] __lock_acquire+0x2e0e/0x3f20 kernel/locking/lockdep.c:3491 lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998 __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xc4/0x1310 kernel/locking/mutex.c:893 lock_trace fs/proc/base.c:407 [inline] proc_pid_stack+0x13f/0x2f0 fs/proc/base.c:457 proc_single_show+0xe7/0x150 fs/proc/base.c:761 seq_read+0x4cf/0x1120 fs/seq_file.c:237 do_loop_readv_writev fs/read_write.c:695 [inline] do_loop_readv_writev fs/read_write.c:682 [inline] do_iter_read+0x3eb/0x5b0 fs/read_write.c:919 vfs_readv+0xc8/0x120 fs/read_write.c:981 do_preadv fs/read_write.c:1065 [inline] SYSC_preadv fs/read_write.c:1115 [inline] SyS_preadv+0x15a/0x200 fs/read_write.c:1110 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x45de59 RSP: 002b:00007f24190abc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000127 RAX: ffffffffffffffda RBX: 0000000000025dc0 RCX: 000000000045de59 RDX: 0000000000000375 RSI: 00000000200017c0 RDI: 0000000000000006 RBP: 000000000118c168 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118c124 R13: 00007ffd7cbbfaef R14: 00007f24190ac9c0 R15: 000000000118c124 UDF-fs: Scanning with blocksize 2048 failed UDF-fs: warning (device loop0): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 4096 failed UDF-fs: warning (device loop0): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 512 failed UDF-fs: warning (device loop0): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 1024 failed UDF-fs: warning (device loop0): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 2048 failed UDF-fs: warning (device loop0): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 4096 failed print_req_error: I/O error, dev loop4, sector 0 print_req_error: I/O error, dev loop4, sector 0 nla_parse: 16 callbacks suppressed netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'. ieee80211 phy31: mac80211_hwsim_bss_info_changed(changed=0xa00 vif->addr=02:00:00:00:1f:00) UDF-fs: warning (device loop0): udf_load_vrs: No VRS found ieee80211 phy31: BCN EN: 0 (BI=100) UDF-fs: Scanning with blocksize 512 failed ieee80211 phy31: beaconing vifs remaining: 0 UDF-fs: warning (device loop0): udf_load_vrs: No VRS found ieee80211 phy31: mac80211_hwsim_bss_info_changed(changed=0x4000 vif->addr=02:00:00:00:1f:00) UDF-fs: Scanning with blocksize 1024 failed UDF-fs: warning (device loop0): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 2048 failed ieee80211 phy31: mac80211_hwsim_config (freq=2412(2412 - 0)/noht idle=0 ps=0 smps=static) UDF-fs: warning (device loop0): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 4096 failed ieee80211 phy31: mac80211_hwsim_config (freq=2412(2412 - 0)/noht idle=1 ps=0 smps=static) ieee80211 phy31: mac80211_hwsim_remove_interface (type=1 mac_addr=02:00:00:00:1f:00) ieee80211 phy31: mac80211_hwsim_stop netlink: 88 bytes leftover after parsing attributes in process `syz-executor.4'. netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 88 bytes leftover after parsing attributes in process `syz-executor.4'. UDF-fs: warning (device loop0): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 512 failed ieee80211 phy32: mac80211_hwsim_bss_info_changed(changed=0xa00 vif->addr=02:00:00:00:20:00) UDF-fs: warning (device loop0): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 1024 failed ieee80211 phy32: BCN EN: 0 (BI=100) UDF-fs: warning (device loop0): udf_load_vrs: No VRS found ieee80211 phy32: beaconing vifs remaining: 0 UDF-fs: Scanning with blocksize 2048 failed ieee80211 phy32: mac80211_hwsim_bss_info_changed(changed=0x4000 vif->addr=02:00:00:00:20:00) UDF-fs: warning (device loop0): udf_load_vrs: No VRS found ieee80211 phy32: mac80211_hwsim_config (freq=2412(2412 - 0)/noht idle=0 ps=0 smps=static) UDF-fs: Scanning with blocksize 4096 failed ieee80211 phy32: mac80211_hwsim_config (freq=2412(2412 - 0)/noht idle=1 ps=0 smps=static) ieee80211 phy32: mac80211_hwsim_remove_interface (type=1 mac_addr=02:00:00:00:20:00) ieee80211 phy32: mac80211_hwsim_stop UDF-fs: bad mount option "0" or missing value 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 device bridge_slave_1 left promiscuous mode bridge0: port 2(bridge_slave_1) entered disabled state device bridge_slave_0 left promiscuous mode bridge0: port 1(bridge_slave_0) entered disabled state device veth1_macvtap left promiscuous mode device veth0_macvtap left promiscuous mode device veth1_vlan left promiscuous mode device veth0_vlan left promiscuous mode device hsr_slave_1 left promiscuous mode device hsr_slave_0 left promiscuous mode team0 (unregistering): Port device team_slave_1 removed team0 (unregistering): Port device team_slave_0 removed bond0 (unregistering): Releasing backup interface bond_slave_1 bond0 (unregistering): Releasing backup interface bond_slave_0 bond0 (unregistering): Released all slaves IPVS: ftp: loaded support on port[0] = 21 chnl_net:caif_netlink_parms(): no params data found bridge0: port 1(bridge_slave_0) entered blocking state bridge0: port 1(bridge_slave_0) entered disabled state device bridge_slave_0 entered promiscuous mode bridge0: port 2(bridge_slave_1) entered blocking state bridge0: port 2(bridge_slave_1) entered disabled state device bridge_slave_1 entered promiscuous mode bond0: Enslaving bond_slave_0 as an active interface with an up link bond0: Enslaving bond_slave_1 as an active interface with an up link IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready team0: Port device team_slave_0 added IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready team0: Port device team_slave_1 added batman_adv: batadv0: Adding interface: batadv_slave_0 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. batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active batman_adv: batadv0: Adding interface: batadv_slave_1 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. batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready device hsr_slave_0 entered promiscuous mode device hsr_slave_1 entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready bridge0: port 2(bridge_slave_1) entered blocking state bridge0: port 2(bridge_slave_1) entered forwarding state bridge0: port 1(bridge_slave_0) entered blocking state bridge0: port 1(bridge_slave_0) entered forwarding state IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready 8021q: adding VLAN 0 to HW filter on device bond0 IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready bridge0: port 1(bridge_slave_0) entered disabled state bridge0: port 2(bridge_slave_1) entered disabled state IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready 8021q: adding VLAN 0 to HW filter on device team0 IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready bridge0: port 1(bridge_slave_0) entered blocking state bridge0: port 1(bridge_slave_0) entered forwarding state IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready bridge0: port 2(bridge_slave_1) entered blocking state bridge0: port 2(bridge_slave_1) entered forwarding state IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready 8021q: adding VLAN 0 to HW filter on device batadv0 IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready IPv6: ADDRCONF(NETDEV_UP): veth1_virt_wifi: link is not ready IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready IPv6: ADDRCONF(NETDEV_UP): veth1_vlan: link is not ready IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready device veth0_vlan entered promiscuous mode IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready device veth1_vlan entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready IPv6: ADDRCONF(NETDEV_UP): veth1_macvtap: link is not ready IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready device veth0_macvtap entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): macvtap0: link is not ready device veth1_macvtap entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): macsec0: link is not ready IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0 batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0 batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0 batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! IPv6: ADDRCONF(NETDEV_UP): batadv_slave_0: link is not ready batman_adv: batadv0: Interface activated: batadv_slave_0 IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1 batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1 batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1 batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! IPv6: ADDRCONF(NETDEV_UP): batadv_slave_1: link is not ready batman_adv: batadv0: Interface activated: batadv_slave_1 IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready Bluetooth: hci1 command 0x0409 tx timeout ieee80211 phy33: Selected rate control algorithm 'minstrel_ht' ieee80211 phy33: hwaddr 02:00:00:00:21:00 registered ieee80211 phy33: mac80211_hwsim_start ieee80211 phy33: mac80211_hwsim_add_interface (type=1 mac_addr=02:00:00:00:21:00) ieee80211 phy33: mac80211_hwsim_bss_info_changed(changed=0xe vif->addr=02:00:00:00:21:00) ieee80211 phy33: ERP_CTS_PROT: 0 ieee80211 phy33: ERP_PREAMBLE: 0 ieee80211 phy33: ERP_SLOT: 0 ieee80211 phy33: mac80211_hwsim_conf_tx (queue=0 txop=47 cw_min=3 cw_max=7 aifs=2) ieee80211 phy33: mac80211_hwsim_conf_tx (queue=1 txop=94 cw_min=7 cw_max=15 aifs=2) ieee80211 phy33: mac80211_hwsim_conf_tx (queue=2 txop=0 cw_min=15 cw_max=1023 aifs=3) ieee80211 phy33: mac80211_hwsim_conf_tx (queue=3 txop=0 cw_min=15 cw_max=1023 aifs=7) ieee80211 phy33: mac80211_hwsim_bss_info_changed(changed=0x2000 vif->addr=02:00:00:00:21:00) ieee80211 phy33: mac80211_hwsim_config (freq=2412(2412 - 0)/noht idle=1 ps=0 smps=static) ieee80211 phy33: mac80211_hwsim_configure_filter IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready ieee80211 phy33: mac80211_hwsim_configure_filter ieee80211 phy33: mac80211_hwsim_bss_info_changed(changed=0x10 vif->addr=02:00:00:00:21:00) ieee80211 phy33: HT: op_mode=0xb wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 ieee80211 phy34: Selected rate control algorithm 'minstrel_ht' wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 ieee80211 phy34: hwaddr 02:00:00:00:22:00 registered ieee80211 phy33: mac80211_hwsim_config (freq=2412(2412 - 0)/noht idle=0 ps=0 smps=static) ieee80211 phy34: mac80211_hwsim_start ieee80211 phy34: mac80211_hwsim_add_interface (type=1 mac_addr=02:00:00:00:22:00) ieee80211 phy34: mac80211_hwsim_bss_info_changed(changed=0xe vif->addr=02:00:00:00:22:00) ieee80211 phy34: ERP_CTS_PROT: 0 ieee80211 phy34: ERP_PREAMBLE: 0 ieee80211 phy33: mac80211_hwsim_config (freq=2412(2412 - 0)/noht idle=0 ps=0 smps=static) ieee80211 phy34: ERP_SLOT: 0 ieee80211 phy34: mac80211_hwsim_conf_tx (queue=0 txop=47 cw_min=3 cw_max=7 aifs=2) ieee80211 phy34: mac80211_hwsim_conf_tx (queue=1 txop=94 cw_min=7 cw_max=15 aifs=2) ieee80211 phy33: mac80211_hwsim_bss_info_changed(changed=0x40000 vif->addr=02:00:00:00:21:00) ieee80211 phy34: mac80211_hwsim_conf_tx (queue=2 txop=0 cw_min=15 cw_max=1023 aifs=3) ieee80211 phy33: TX Power: 20 dBm ieee80211 phy33: mac80211_hwsim_bss_info_changed(changed=0x4000 vif->addr=02:00:00:00:21:00) ieee80211 phy34: mac80211_hwsim_conf_tx (queue=3 txop=0 cw_min=15 cw_max=1023 aifs=7) ieee80211 phy34: mac80211_hwsim_bss_info_changed(changed=0x2000 vif->addr=02:00:00:00:22:00) ieee80211 phy33: mac80211_hwsim_conf_tx (queue=0 txop=0 cw_min=15 cw_max=1023 aifs=2) ieee80211 phy34: mac80211_hwsim_config (freq=2412(2412 - 0)/noht idle=1 ps=0 smps=static) ieee80211 phy34: mac80211_hwsim_configure_filter IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready ieee80211 phy34: mac80211_hwsim_configure_filter ieee80211 phy33: mac80211_hwsim_conf_tx (queue=1 txop=0 cw_min=15 cw_max=1023 aifs=2) ieee80211 phy34: mac80211_hwsim_bss_info_changed(changed=0x10 vif->addr=02:00:00:00:22:00) ieee80211 phy33: mac80211_hwsim_conf_tx (queue=2 txop=0 cw_min=15 cw_max=1023 aifs=2) ieee80211 phy34: HT: op_mode=0xb ieee80211 phy33: mac80211_hwsim_conf_tx (queue=3 txop=0 cw_min=15 cw_max=1023 aifs=2) wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 ieee80211 phy33: mac80211_hwsim_bss_info_changed(changed=0x2000 vif->addr=02:00:00:00:21:00) ieee80211 phy34: mac80211_hwsim_config (freq=2412(2412 - 0)/noht idle=0 ps=0 smps=static) ieee80211 phy33: mac80211_hwsim_bss_info_changed(changed=0x8bfe vif->addr=02:00:00:00:21:00) ieee80211 phy34: mac80211_hwsim_config (freq=2412(2412 - 0)/noht idle=0 ps=0 smps=static) ieee80211 phy33: mac80211_hwsim_bss_info_changed: BSSID changed: 50:50:50:50:50:50 ieee80211 phy33: BCN EN: 1 (BI=100) ieee80211 phy33: ERP_CTS_PROT: 0 ieee80211 phy34: mac80211_hwsim_bss_info_changed(changed=0x40000 vif->addr=02:00:00:00:22:00) ieee80211 phy34: TX Power: 20 dBm ieee80211 phy33: ERP_PREAMBLE: 0 ieee80211 phy34: mac80211_hwsim_bss_info_changed(changed=0x4000 vif->addr=02:00:00:00:22:00) ieee80211 phy33: ERP_SLOT: 0 ieee80211 phy33: HT: op_mode=0xb ieee80211 phy34: mac80211_hwsim_conf_tx (queue=0 txop=0 cw_min=15 cw_max=1023 aifs=2) ieee80211 phy33: BASIC_RATES: 0x1 ieee80211 phy34: mac80211_hwsim_conf_tx (queue=1 txop=0 cw_min=15 cw_max=1023 aifs=2) IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready ieee80211 phy33: mac80211_hwsim_configure_filter ieee80211 phy34: mac80211_hwsim_conf_tx (queue=2 txop=0 cw_min=15 cw_max=1023 aifs=2) ieee80211 phy34: mac80211_hwsim_conf_tx (queue=3 txop=0 cw_min=15 cw_max=1023 aifs=2) ieee80211 phy34: mac80211_hwsim_bss_info_changed(changed=0x2000 vif->addr=02:00:00:00:22:00) ieee80211 phy34: mac80211_hwsim_bss_info_changed(changed=0x8bfe vif->addr=02:00:00:00:22:00) ieee80211 phy34: mac80211_hwsim_bss_info_changed: BSSID changed: 50:50:50:50:50:50 ieee80211 phy34: BCN EN: 1 (BI=100) ieee80211 phy34: ERP_CTS_PROT: 0 ieee80211 phy34: ERP_PREAMBLE: 0 ieee80211 phy34: ERP_SLOT: 0 ieee80211 phy34: HT: op_mode=0xb ieee80211 phy34: BASIC_RATES: 0x1 IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready ieee80211 phy34: mac80211_hwsim_configure_filter FAT-fs (loop1): Unrecognized mount option "shoh" or missing value print_req_error: I/O error, dev loop1, sector 0 FAT-fs (loop1): Unrecognized mount option "shoh" or missing value UDF-fs: bad mount option "session=00000000"—¼Å'…['00000000000D" or missing value audit: type=1804 audit(1602989758.751:54): pid=19392 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op="invalid_pcr" cause="open_writers" comm="syz-executor.3" name="/root/syzkaller-testdir922045166/syzkaller.YU7Boq/350/bus" dev="sda1" ino=15969 res=1 device vxlan0 entered promiscuous mode audit: type=1804 audit(1602989758.801:55): pid=19399 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op="invalid_pcr" cause="ToMToU" comm="syz-executor.3" name="/root/syzkaller-testdir922045166/syzkaller.YU7Boq/350/bus" dev="sda1" ino=15969 res=1 UDF-fs: bad mount option "session=00000000"—¼Å'…['00000000000D" or missing value audit: type=1804 audit(1602989758.901:56): pid=19378 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op="invalid_pcr" cause="open_writers" comm="syz-executor.3" name="/root/syzkaller-testdir922045166/syzkaller.YU7Boq/350/bus" dev="sda1" ino=15969 res=1 UDF-fs: warning (device loop0): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 512 failed UDF-fs: warning (device loop0): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 1024 failed audit: type=1804 audit(1602989758.901:57): pid=19378 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op="invalid_pcr" cause="ToMToU" comm="syz-executor.3" name="/root/syzkaller-testdir922045166/syzkaller.YU7Boq/350/bus" dev="sda1" ino=15969 res=1 UDF-fs: warning (device loop0): udf_load_vrs: No VRS found audit: type=1804 audit(1602989759.031:58): pid=19430 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op="invalid_pcr" cause="open_writers" comm="syz-executor.3" name="/root/syzkaller-testdir922045166/syzkaller.YU7Boq/351/bus" dev="sda1" ino=16017 res=1 UDF-fs: Scanning with blocksize 2048 failed UDF-fs: warning (device loop0): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 4096 failed audit: type=1804 audit(1602989759.091:59): pid=19437 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op="invalid_pcr" cause="ToMToU" comm="syz-executor.3" name="/root/syzkaller-testdir922045166/syzkaller.YU7Boq/351/bus" dev="sda1" ino=16017 res=1 print_req_error: I/O error, dev loop1, sector 0 device vxlan0 entered promiscuous mode netlink: 88 bytes leftover after parsing attributes in process `syz-executor.4'. netlink: 88 bytes leftover after parsing attributes in process `syz-executor.4'. netlink: 88 bytes leftover after parsing attributes in process `syz-executor.4'. Bluetooth: hci1 command 0x041b tx timeout audit: type=1804 audit(1602989759.651:60): pid=19492 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op="invalid_pcr" cause="open_writers" comm="syz-executor.3" name="/root/syzkaller-testdir922045166/syzkaller.YU7Boq/352/bus" dev="sda1" ino=15969 res=1 device vxlan0 entered promiscuous mode netlink: 88 bytes leftover after parsing attributes in process `syz-executor.4'. audit: type=1804 audit(1602989759.701:61): pid=19500 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op="invalid_pcr" cause="ToMToU" comm="syz-executor.3" name="/root/syzkaller-testdir922045166/syzkaller.YU7Boq/352/bus" dev="sda1" ino=15969 res=1 UDF-fs: warning (device loop0): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 512 failed UDF-fs: warning (device loop0): udf_load_vrs: No VRS found SELinux: unrecognized netlink message: protocol=0 nlmsg_type=39 sclass=netlink_route_socket pid=19519 comm=syz-executor.4 UDF-fs: Scanning with blocksize 1024 failed UDF-fs: warning (device loop0): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 2048 failed SELinux: unrecognized netlink message: protocol=0 nlmsg_type=39 sclass=netlink_route_socket pid=19519 comm=syz-executor.4 print_req_error: I/O error, dev loop1, sector 0 UDF-fs: warning (device loop0): udf_load_vrs: No VRS found device vxlan0 entered promiscuous mode UDF-fs: Scanning with blocksize 4096 failed audit: type=1804 audit(1602989760.121:62): pid=19534 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op="invalid_pcr" cause="open_writers" comm="syz-executor.3" name="/root/syzkaller-testdir922045166/syzkaller.YU7Boq/353/bus" dev="sda1" ino=16129 res=1 audit: type=1804 audit(1602989760.201:63): pid=19544 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op="invalid_pcr" cause="ToMToU" comm="syz-executor.3" name="/root/syzkaller-testdir922045166/syzkaller.YU7Boq/353/bus" dev="sda1" ino=16129 res=1 UDF-fs: bad mount option "session=000000000000µ0000000" or missing value device vxlan0 entered promiscuous mode