8021q: adding VLAN 0 to HW filter on device bond1
Invalid argument reading file caps for ./bus
bond0: Enslaving bond1 as an active interface with an up link
============================================
WARNING: possible recursive locking detected
4.14.166-syzkaller #0 Not tainted
--------------------------------------------
syz-executor.2/16876 is trying to acquire lock:
(&(&bond->stats_lock)->rlock#2/2){+.+.}, at: [<ffffffff83e7a5c2>] bond_get_stats+0xd2/0x4b0 drivers/net/bonding/bond_main.c:3416
but task is already holding lock:
Invalid argument reading file caps for ./bus
(&(&bond->stats_lock)->rlock#2/2){+.+.}, at: [<ffffffff83e7a5c2>] bond_get_stats+0xd2/0x4b0 drivers/net/bonding/bond_main.c:3416
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0
----
lock(&(&bond->stats_lock)->rlock#2/2);
lock(&(&bond->stats_lock)->rlock#2/2);
*** DEADLOCK ***
May be due to missing lock nesting notation
3 locks held by syz-executor.2/16876:
#0: (rtnl_mutex){+.+.}, at: [<ffffffff85239119>] rtnl_lock net/core/rtnetlink.c:72 [inline]
#0: (rtnl_mutex){+.+.}, at: [<ffffffff85239119>] rtnetlink_rcv_msg+0x339/0xb70 net/core/rtnetlink.c:4301
#1: (&(&bond->stats_lock)->rlock#2/2){+.+.}, at: [<ffffffff83e7a5c2>] bond_get_stats+0xd2/0x4b0 drivers/net/bonding/bond_main.c:3416
#2: (rcu_read_lock){....}, at: [<ffffffff83e7a5a1>] bond_get_nest_level drivers/net/bonding/bond_main.c:3405 [inline]
#2: (rcu_read_lock){....}, at: [<ffffffff83e7a5a1>] bond_get_stats+0xb1/0x4b0 drivers/net/bonding/bond_main.c:3416
stack backtrace:
CPU: 1 PID: 16876 Comm: syz-executor.2 Not tainted 4.14.166-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+0x142/0x197 lib/dump_stack.c:58
print_deadlock_bug kernel/locking/lockdep.c:1796 [inline]
check_deadlock kernel/locking/lockdep.c:1843 [inline]
validate_chain kernel/locking/lockdep.c:2444 [inline]
__lock_acquire.cold+0x2bf/0x8dc kernel/locking/lockdep.c:3487
lock_acquire+0x16f/0x430 kernel/locking/lockdep.c:3994
_raw_spin_lock_nested+0x35/0x50 kernel/locking/spinlock.c:362
bond_get_stats+0xd2/0x4b0 drivers/net/bonding/bond_main.c:3416
dev_get_stats+0x8e/0x250 net/core/dev.c:7994
bond_get_stats+0x20f/0x4b0 drivers/net/bonding/bond_main.c:3422
dev_get_stats+0x8e/0x250 net/core/dev.c:7994
rtnl_fill_stats+0x4d/0xac0 net/core/rtnetlink.c:1079
rtnl_fill_ifinfo+0xe45/0x32c0 net/core/rtnetlink.c:1385
rtmsg_ifinfo_build_skb+0x9b/0x140 net/core/rtnetlink.c:2903
rtmsg_ifinfo_event.part.0+0x35/0xc0 net/core/rtnetlink.c:2933
rtmsg_ifinfo_event net/core/rtnetlink.c:4357 [inline]
rtnetlink_event+0xf4/0x120 net/core/rtnetlink.c:4350
notifier_call_chain+0x111/0x1b0 kernel/notifier.c:93
__raw_notifier_call_chain kernel/notifier.c:394 [inline]
raw_notifier_call_chain+0x2e/0x40 kernel/notifier.c:401
call_netdevice_notifiers_info+0x56/0x70 net/core/dev.c:1671
call_netdevice_notifiers net/core/dev.c:1687 [inline]
netdev_features_change net/core/dev.c:1300 [inline]
netdev_change_features+0x66/0x80 net/core/dev.c:7458
bond_compute_features.isra.0+0x484/0x8d0 drivers/net/bonding/bond_main.c:1122
bond_slave_netdev_event drivers/net/bonding/bond_main.c:3150 [inline]
bond_netdev_event+0x493/0x8e0 drivers/net/bonding/bond_main.c:3191
notifier_call_chain+0x111/0x1b0 kernel/notifier.c:93
__raw_notifier_call_chain kernel/notifier.c:394 [inline]
raw_notifier_call_chain+0x2e/0x40 kernel/notifier.c:401
call_netdevice_notifiers_info+0x56/0x70 net/core/dev.c:1671
call_netdevice_notifiers net/core/dev.c:1687 [inline]
netdev_features_change net/core/dev.c:1300 [inline]
netdev_change_features+0x66/0x80 net/core/dev.c:7458
bond_compute_features.isra.0+0x484/0x8d0 drivers/net/bonding/bond_main.c:1122
bond_enslave+0x15ef/0x4c70 drivers/net/bonding/bond_main.c:1731
do_set_master net/core/rtnetlink.c:1961 [inline]
do_set_master+0x19f/0x200 net/core/rtnetlink.c:1936
rtnl_newlink+0x12ed/0x1700 net/core/rtnetlink.c:2747
rtnetlink_rcv_msg+0x3da/0xb70 net/core/rtnetlink.c:4306
netlink_rcv_skb+0x14f/0x3c0 net/netlink/af_netlink.c:2432
rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:4318
netlink_unicast_kernel net/netlink/af_netlink.c:1286 [inline]
netlink_unicast+0x44d/0x650 net/netlink/af_netlink.c:1312
netlink_sendmsg+0x7c4/0xc60 net/netlink/af_netlink.c:1877
sock_sendmsg_nosec net/socket.c:646 [inline]
sock_sendmsg+0xce/0x110 net/socket.c:656
___sys_sendmsg+0x70a/0x840 net/socket.c:2062
__sys_sendmsg+0xb9/0x140 net/socket.c:2096
SYSC_sendmsg net/socket.c:2107 [inline]
SyS_sendmsg+0x2d/0x50 net/socket.c:2103
do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45b349
RSP: 002b:00007fb6e14cec78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fb6e14cf6d4 RCX: 000000000045b349
RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000000003
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 000000000000099e R14: 00000000004cb152 R15: 000000000075bf2c
bond1: Enslaving veth3 as a backup interface with a down link
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
audit: type=1400 audit(2000000105.850:48): avc: denied { relabelto } for pid=16921 comm="syz-executor.2" name="bus" dev="sda1" ino=17442 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:console_device_t:s0 tclass=file permissive=1
audit: type=1400 audit(2000000105.890:49): avc: denied { setattr } for pid=16921 comm="syz-executor.2" name="bus" dev="sda1" ino=17442 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:console_device_t:s0 tclass=file permissive=1
Invalid argument reading file caps for ./bus
audit: type=1400 audit(2000000105.890:50): avc: denied { relabelfrom } for pid=16921 comm="syz-executor.2" name="bus" dev="sda1" ino=17442 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:console_device_t:s0 tclass=file permissive=1
audit: type=1400 audit(2000000105.890:51): avc: denied { getattr } for pid=7354 comm="syz-executor.2" path="/root/syzkaller-testdir057695883/syzkaller.Kce7dp/323/bus" dev="sda1" ino=17442 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:console_device_t:s0 tclass=file permissive=1
audit: type=1400 audit(2000000105.890:52): avc: denied { unlink } for pid=7354 comm="syz-executor.2" name="bus" dev="sda1" ino=17442 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:console_device_t:s0 tclass=file permissive=1
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Unknown ioctl 8841
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
selinux_nlmsg_perm: 1344 callbacks suppressed
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=17165 comm=syz-executor.3
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=17165 comm=syz-executor.3
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=17165 comm=syz-executor.3
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=17165 comm=syz-executor.3
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=17165 comm=syz-executor.3
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=17165 comm=syz-executor.3
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=17165 comm=syz-executor.3
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=17165 comm=syz-executor.3
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=17165 comm=syz-executor.3
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=17165 comm=syz-executor.3
Invalid argument reading file caps for ./bus
CUSE: info not properly terminated
Invalid argument reading file caps for ./bus
audit: type=1400 audit(2000000110.390:53): avc: denied { setopt } for pid=17220 comm="syz-executor.5" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_netfilter_socket permissive=1
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
netlink: 52 bytes leftover after parsing attributes in process `syz-executor.3'.
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
batadv_slave_0: Invalid MTU 5 requested, hw min 68
ucma_write: process 1137 (syz-executor.5) changed security contexts after opening file descriptor, this is not allowed.
Invalid argument reading file caps for ./bus
batadv_slave_0: Invalid MTU 5 requested, hw min 68
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
selinux_nlmsg_perm: 1434 callbacks suppressed
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=17541 comm=syz-executor.0
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=17541 comm=syz-executor.0
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=17541 comm=syz-executor.0
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=17541 comm=syz-executor.0
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=17541 comm=syz-executor.0
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=17541 comm=syz-executor.0
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=17541 comm=syz-executor.0
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=17541 comm=syz-executor.0
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=17541 comm=syz-executor.0
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=17541 comm=syz-executor.0
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus
Invalid argument reading file caps for ./bus