device bridge_slave_1 left promiscuous mode
bridge0: port 2(bridge_slave_1) entered disabled state
bridge0: port 1(bridge_slave_0) entered disabled state
device batadv0 left promiscuous mode
============================================
WARNING: possible recursive locking detected
4.19.211-syzkaller #0 Not tainted
--------------------------------------------
kworker/u4:6/9944 is trying to acquire lock:
00000000ffd5b967 (&macvlan_netdev_addr_lock_key#2/2){+...}, at: netif_addr_lock_nested include/linux/netdevice.h:4007 [inline]
00000000ffd5b967 (&macvlan_netdev_addr_lock_key#2/2){+...}, at: dev_uc_sync_multiple+0x11a/0x1e0 net/core/dev_addr_lists.c:574
but task is already holding lock:
00000000a693d488 (&macvlan_netdev_addr_lock_key#2/2){+...}, at: spin_lock_bh include/linux/spinlock.h:334 [inline]
00000000a693d488 (&macvlan_netdev_addr_lock_key#2/2){+...}, at: netif_addr_lock_bh include/linux/netdevice.h:4012 [inline]
00000000a693d488 (&macvlan_netdev_addr_lock_key#2/2){+...}, at: dev_uc_unsync net/core/dev_addr_lists.c:597 [inline]
00000000a693d488 (&macvlan_netdev_addr_lock_key#2/2){+...}, at: dev_uc_unsync+0xb4/0x1d0 net/core/dev_addr_lists.c:592
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0
----
lock(&macvlan_netdev_addr_lock_key#2/2);
lock(&macvlan_netdev_addr_lock_key#2/2);
*** DEADLOCK ***
May be due to missing lock nesting notation
7 locks held by kworker/u4:6/9944:
#0: 000000009aff36a9 ((wq_completion)"%s""netns"){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124
#1: 00000000bd999853 (net_cleanup_work){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128
#2: 00000000b59b6d10 (pernet_ops_rwsem){++++}, at: cleanup_net+0xa8/0x8b0 net/core/net_namespace.c:521
#3: 00000000c5fde9a9 (rtnl_mutex){+.+.}, at: rtnl_lock_unregistering net/core/dev.c:9748 [inline]
#3: 00000000c5fde9a9 (rtnl_mutex){+.+.}, at: default_device_exit_batch+0xea/0x3c0 net/core/dev.c:9786
#4: 00000000a693d488 (&macvlan_netdev_addr_lock_key#2/2){+...}, at: spin_lock_bh include/linux/spinlock.h:334 [inline]
#4: 00000000a693d488 (&macvlan_netdev_addr_lock_key#2/2){+...}, at: netif_addr_lock_bh include/linux/netdevice.h:4012 [inline]
#4: 00000000a693d488 (&macvlan_netdev_addr_lock_key#2/2){+...}, at: dev_uc_unsync net/core/dev_addr_lists.c:597 [inline]
#4: 00000000a693d488 (&macvlan_netdev_addr_lock_key#2/2){+...}, at: dev_uc_unsync+0xb4/0x1d0 net/core/dev_addr_lists.c:592
#5: 00000000a22da1ff (&dev_addr_list_lock_key#2/1){+...}, at: netif_addr_lock_nested include/linux/netdevice.h:4007 [inline]
#5: 00000000a22da1ff (&dev_addr_list_lock_key#2/1){+...}, at: dev_uc_unsync net/core/dev_addr_lists.c:598 [inline]
#5: 00000000a22da1ff (&dev_addr_list_lock_key#2/1){+...}, at: dev_uc_unsync+0x136/0x1d0 net/core/dev_addr_lists.c:592
#6: 000000002227d5d3 (rcu_read_lock){....}, at: team_set_rx_mode+0x0/0x230 drivers/net/team/team.c:509
stack backtrace:
CPU: 0 PID: 9944 Comm: kworker/u4:6 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: netns cleanup_net
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
print_deadlock_bug kernel/locking/lockdep.c:1764 [inline]
check_deadlock kernel/locking/lockdep.c:1808 [inline]
validate_chain kernel/locking/lockdep.c:2404 [inline]
__lock_acquire.cold+0x121/0x57e kernel/locking/lockdep.c:3416
lock_acquire+0x170/0x3c0 kernel/locking/lockdep.c:3908
_raw_spin_lock_nested+0x30/0x40 kernel/locking/spinlock.c:354
netif_addr_lock_nested include/linux/netdevice.h:4007 [inline]
dev_uc_sync_multiple+0x11a/0x1e0 net/core/dev_addr_lists.c:574
team_set_rx_mode+0xce/0x230 drivers/net/team/team.c:1788
__dev_set_rx_mode+0x1d9/0x2f0 net/core/dev.c:7601
dev_uc_unsync net/core/dev_addr_lists.c:600 [inline]
dev_uc_unsync+0x17b/0x1d0 net/core/dev_addr_lists.c:592
macvlan_stop+0xfe/0x4c0 drivers/net/macvlan.c:682
__dev_close_many+0x1ab/0x2e0 net/core/dev.c:1485
dev_close_many+0x24a/0x670 net/core/dev.c:1510
rollback_registered_many+0x2f7/0xe70 net/core/dev.c:8173
unregister_netdevice_many.part.0+0x1a/0x300 net/core/dev.c:9324
unregister_netdevice_many net/core/dev.c:9323 [inline]
default_device_exit_batch+0x2fa/0x3c0 net/core/dev.c:9795
ops_exit_list+0xf9/0x150 net/core/net_namespace.c:156
cleanup_net+0x3b4/0x8b0 net/core/net_namespace.c:554
process_one_work+0x864/0x1570 kernel/workqueue.c:2153
worker_thread+0x64c/0x1130 kernel/workqueue.c:2296
kthread+0x33f/0x460 kernel/kthread.c:259
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
device team0 left promiscuous mode
device macvlan4 left promiscuous mode
device macvlan5 left promiscuous mode
device team_slave_0 left promiscuous mode
device team_slave_1 left promiscuous mode
device veth1_macvtap left promiscuous mode
device veth0_macvtap left promiscuous mode
device veth1_vlan left promiscuous mode
device veth0_vlan left promiscuous mode
Bluetooth: hci2: command 0x0419 tx timeout
bond1 (unregistering): Released all slaves
team0 (unregistering): Port device macvlan5 removed
team0 (unregistering): Port device macvlan4 removed
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
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!
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_UP): veth0_macvtap: link is not ready
IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
IPv6: ADDRCONF(NETDEV_UP): veth1_macvtap: link is not 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!
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!
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
ieee80211 phy43: Selected rate control algorithm 'minstrel_ht'
IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
ieee80211 phy44: Selected rate control algorithm 'minstrel_ht'
IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready
wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready
ieee80211 phy45: Selected rate control algorithm 'minstrel_ht'
IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
ieee80211 phy46: Selected rate control algorithm 'minstrel_ht'
*** Guest State ***
CR0: actual=0x0000000000000020, shadow=0x0000000000000000, gh_mask=fffffffffffffff7
IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready
wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready
CR4: actual=0x0000000000002040, shadow=0x0000000000000000, gh_mask=ffffffffffffe871
CR3 = 0x0000000000000000
RSP = 0x0000000000000b36 RIP = 0x0000000000000000
RFLAGS=0x00000002 DR7 = 0x0000000000000400
Sysenter RSP=0000000000000000 CS:RIP=0000:0000000000000000
CS: sel=0x0000, attr=0x10000, limit=0x00000000, base=0x0000000000000000
DS: sel=0x0000, attr=0x10000, limit=0x00000000, base=0x0000000000000000
SS: sel=0x0000, attr=0x10000, limit=0x00000000, base=0x0000000000000000
ES: sel=0x0000, attr=0x10000, limit=0x00000000, base=0x0000000000000000
FS: sel=0x0000, attr=0x10000, limit=0x00000000, base=0x0000000000000000
GS: sel=0x0000, attr=0x10000, limit=0x00000000, base=0x0000000000000000
GDTR: limit=0x00000000, base=0x0000000000000000
EXT4-fs (loop2): VFS: Can't find ext4 filesystem
LDTR: sel=0x0000, attr=0x10000, limit=0x00000000, base=0x0000000000000000
IDTR: limit=0x00000000, base=0x0000000000000000
TR: sel=0x0000, attr=0x10000, limit=0x00000000, base=0x0000000000000000
EFER = 0x0000000000000000 PAT = 0x0007040600070406
DebugCtl = 0x0000000000000000 DebugExceptions = 0x0000000000000000
Interruptibility = 00000000 ActivityState = 00000000
audit: type=1800 audit(1634506265.405:323): pid=1862 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.2" name="bus" dev="sda1" ino=13954 res=0
*** Host State ***
RIP = 0xffffffff811a9c2f RSP = 0xffff88809433f8c0
CS=0010 SS=0018 DS=0000 ES=0000 FS=0000 GS=0000 TR=0040
FSBase=00007fc569a7d700 GSBase=ffff8880ba000000 TRBase=fffffe0000034000
GDTBase=fffffe0000032000 IDTBase=fffffe0000000000
CR0=0000000080050033 CR3=0000000010678000 CR4=00000000003426f0
Sysenter RSP=fffffe0000034000 CS:RIP=0010:ffffffff88201290
EFER = 0x0000000000000d01 PAT = 0x0407050600070106
*** Control State ***
PinBased=0000003f CPUBased=b5a06dfa SecondaryExec=000000e2
EntryControls=0000d1ff ExitControls=002fefff
ExceptionBitmap=00060042 PFECmask=00000000 PFECmatch=00000000
VMEntry: intr_info=00000000 errcode=00000000 ilen=00000000
VMExit: intr_info=00000000 errcode=00000000 ilen=00000003
reason=80000021 qualification=0000000000000000
IDTVectoring: info=00000000 errcode=00000000
TSC Offset = 0xfffffe763f8599f6
TPR Threshold = 0x00
EPT pointer = 0x00000000950ea01e
Virtual processor ID = 0x0002
EXT4-fs (loop2): VFS: Can't find ext4 filesystem
audit: type=1800 audit(1634506265.595:324): pid=1862 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.2" name="bus" dev="sda1" ino=13954 res=0
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'.
bond0: Releasing backup interface bond_slave_0
UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2020/09/19 18:44 (1000)
UDF-fs: error (device loop0): udf_read_inode: (ino 1408) failed !bh
UDF-fs: error (device loop0): udf_fill_super: Error in udf_iget, block=96, partition=0
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'.
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'.
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'.
IPVS: ftp: loaded support on port[0] = 21
base_sock_release(0000000061a144c9) sk=00000000b197b164
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'.
UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2020/09/19 18:44 (1000)
UDF-fs: error (device loop0): udf_read_inode: (ino 1408) failed !bh
UDF-fs: error (device loop0): udf_fill_super: Error in udf_iget, block=96, partition=0
base_sock_release(00000000de7b26e6) sk=0000000045231245
orangefs_mount: mount request failed with -4
orangefs_mount: mount request failed with -4
IPVS: ftp: loaded support on port[0] = 21
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'.
UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2020/09/19 18:44 (1000)
UDF-fs: error (device loop5): udf_read_inode: (ino 1408) failed !bh
UDF-fs: error (device loop5): udf_fill_super: Error in udf_iget, block=96, partition=0
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'.
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'.
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'.
UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2020/09/19 18:44 (1000)
UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2020/09/19 18:44 (1000)
UDF-fs: error (device loop5): udf_read_inode: (ino 1408) failed !bh
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'.
UDF-fs: error (device loop5): udf_fill_super: Error in udf_iget, block=96, partition=0
UDF-fs: error (device loop0): udf_read_inode: (ino 1408) failed !bh
UDF-fs: error (device loop0): udf_fill_super: Error in udf_iget, block=96, partition=0
TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters.
TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters.
IPVS: ftp: loaded support on port[0] = 21
TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters.
UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2020/09/19 18:44 (1000)
UDF-fs: error (device loop0): udf_read_inode: (ino 1408) failed !bh
IPVS: ftp: loaded support on port[0] = 21
UDF-fs: error (device loop0): udf_fill_super: Error in udf_iget, block=96, partition=0
nla_parse: 2 callbacks suppressed
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'.
UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2020/09/19 18:44 (1000)
TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters.
UDF-fs: error (device loop0): udf_read_inode: (ino 1408) failed !bh
UDF-fs: error (device loop0): udf_fill_super: Error in udf_iget, block=96, partition=0