=============================
WARNING: suspicious RCU usage
6.5.0-rc6-syzkaller-00138-ga0e026e7b37e #0 Not tainted
-----------------------------
include/linux/inetdevice.h:250 suspicious rcu_dereference_protected() usage!
other info that might help us debug this:
rcu_scheduler_active = 2, debug_locks = 1
2 locks held by syz-executor.5/14587:
#0: ffffffff8e47af70 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1077
#1: ffffffff8e47b028 (genl_mutex){+.+.}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff8e47b028 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x573/0x800 net/netlink/genetlink.c:1065
stack backtrace:
CPU: 1 PID: 14587 Comm: syz-executor.5 Not tainted 6.5.0-rc6-syzkaller-00138-ga0e026e7b37e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x125/0x1b0 lib/dump_stack.c:106
lockdep_rcu_suspicious+0x20c/0x3b0 kernel/locking/lockdep.c:6719
__in_dev_get_rtnl include/linux/inetdevice.h:250 [inline]
inetdev_event+0x444/0x1900 net/ipv4/devinet.c:1532
notifier_call_chain+0xb6/0x3b0 kernel/notifier.c:93
call_netdevice_notifiers_info+0xb9/0x130 net/core/dev.c:1962
call_netdevice_notifiers_extack net/core/dev.c:2000 [inline]
call_netdevice_notifiers net/core/dev.c:2014 [inline]
dev_set_mtu_ext+0x1e8/0x5d0 net/core/dev.c:8664
dev_set_mtu+0xb1/0x160 net/core/dev.c:8694
batadv_update_min_mtu+0x6e/0x90 net/batman-adv/hard-interface.c:645
batadv_netlink_set_mesh+0x7d8/0x14e0 net/batman-adv/netlink.c:498
genl_family_rcv_msg_doit.isra.0+0x1ef/0x2d0 net/netlink/genetlink.c:970
genl_family_rcv_msg net/netlink/genetlink.c:1050 [inline]
genl_rcv_msg+0x559/0x800 net/netlink/genetlink.c:1067
netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2549
genl_rcv+0x28/0x40 net/netlink/genetlink.c:1078
netlink_unicast_kernel net/netlink/af_netlink.c:1339 [inline]
netlink_unicast+0x539/0x800 net/netlink/af_netlink.c:1365
netlink_sendmsg+0x93c/0xe30 net/netlink/af_netlink.c:1914
sock_sendmsg_nosec net/socket.c:725 [inline]
sock_sendmsg+0xd9/0x180 net/socket.c:748
____sys_sendmsg+0x6ac/0x940 net/socket.c:2494
___sys_sendmsg+0x135/0x1d0 net/socket.c:2548
__sys_sendmsg+0x117/0x1e0 net/socket.c:2577
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fa14f07cae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa14fd080c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fa14f19bf80 RCX: 00007fa14f07cae9
RDX: 0000000000000000 RSI: 00000000200001c0 RDI: 0000000000000004
RBP: 00007fa14f0c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fa14f19bf80 R15: 00007ffc19a92128
=============================
WARNING: suspicious RCU usage
6.5.0-rc6-syzkaller-00138-ga0e026e7b37e #0 Not tainted
-----------------------------
include/linux/inetdevice.h:250 suspicious rcu_dereference_protected() usage!
other info that might help us debug this:
rcu_scheduler_active = 2, debug_locks = 1
2 locks held by syz-executor.5/14587:
#0: ffffffff8e47af70 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1077
#1: ffffffff8e47b028 (genl_mutex){+.+.}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff8e47b028 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x573/0x800 net/netlink/genetlink.c:1065
stack backtrace:
CPU: 0 PID: 14587 Comm: syz-executor.5 Not tainted 6.5.0-rc6-syzkaller-00138-ga0e026e7b37e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x125/0x1b0 lib/dump_stack.c:106
lockdep_rcu_suspicious+0x20c/0x3b0 kernel/locking/lockdep.c:6719
__in_dev_get_rtnl include/linux/inetdevice.h:250 [inline]
fib_netdev_event+0x281/0x6f0 net/ipv4/fib_frontend.c:1479
notifier_call_chain+0xb6/0x3b0 kernel/notifier.c:93
call_netdevice_notifiers_info+0xb9/0x130 net/core/dev.c:1962
call_netdevice_notifiers_extack net/core/dev.c:2000 [inline]
call_netdevice_notifiers net/core/dev.c:2014 [inline]
dev_set_mtu_ext+0x1e8/0x5d0 net/core/dev.c:8664
dev_set_mtu+0xb1/0x160 net/core/dev.c:8694
batadv_update_min_mtu+0x6e/0x90 net/batman-adv/hard-interface.c:645
batadv_netlink_set_mesh+0x7d8/0x14e0 net/batman-adv/netlink.c:498
genl_family_rcv_msg_doit.isra.0+0x1ef/0x2d0 net/netlink/genetlink.c:970
genl_family_rcv_msg net/netlink/genetlink.c:1050 [inline]
genl_rcv_msg+0x559/0x800 net/netlink/genetlink.c:1067
netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2549
genl_rcv+0x28/0x40 net/netlink/genetlink.c:1078
netlink_unicast_kernel net/netlink/af_netlink.c:1339 [inline]
netlink_unicast+0x539/0x800 net/netlink/af_netlink.c:1365
netlink_sendmsg+0x93c/0xe30 net/netlink/af_netlink.c:1914
sock_sendmsg_nosec net/socket.c:725 [inline]
sock_sendmsg+0xd9/0x180 net/socket.c:748
____sys_sendmsg+0x6ac/0x940 net/socket.c:2494
___sys_sendmsg+0x135/0x1d0 net/socket.c:2548
__sys_sendmsg+0x117/0x1e0 net/socket.c:2577
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fa14f07cae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa14fd080c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fa14f19bf80 RCX: 00007fa14f07cae9
RDX: 0000000000000000 RSI: 00000000200001c0 RDI: 0000000000000004
RBP: 00007fa14f0c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fa14f19bf80 R15: 00007ffc19a92128
=============================
WARNING: suspicious RCU usage
6.5.0-rc6-syzkaller-00138-ga0e026e7b37e #0 Not tainted
-----------------------------
drivers/net/team/team.c:40 suspicious rcu_dereference_protected() usage!
other info that might help us debug this:
rcu_scheduler_active = 2, debug_locks = 1
2 locks held by syz-executor.5/14587:
#0: ffffffff8e47af70 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1077
#1: ffffffff8e47b028 (genl_mutex){+.+.}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff8e47b028 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x573/0x800 net/netlink/genetlink.c:1065
stack backtrace:
CPU: 0 PID: 14587 Comm: syz-executor.5 Not tainted 6.5.0-rc6-syzkaller-00138-ga0e026e7b37e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x125/0x1b0 lib/dump_stack.c:106
lockdep_rcu_suspicious+0x20c/0x3b0 kernel/locking/lockdep.c:6719
team_port_get_rtnl+0x122/0x140 drivers/net/team/team.c:40
team_device_event+0x40/0x750 drivers/net/team/team.c:3016
notifier_call_chain+0xb6/0x3b0 kernel/notifier.c:93
call_netdevice_notifiers_info+0xb9/0x130 net/core/dev.c:1962
call_netdevice_notifiers_extack net/core/dev.c:2000 [inline]
call_netdevice_notifiers net/core/dev.c:2014 [inline]
dev_set_mtu_ext+0x1e8/0x5d0 net/core/dev.c:8664
dev_set_mtu+0xb1/0x160 net/core/dev.c:8694
batadv_update_min_mtu+0x6e/0x90 net/batman-adv/hard-interface.c:645
batadv_netlink_set_mesh+0x7d8/0x14e0 net/batman-adv/netlink.c:498
genl_family_rcv_msg_doit.isra.0+0x1ef/0x2d0 net/netlink/genetlink.c:970
genl_family_rcv_msg net/netlink/genetlink.c:1050 [inline]
genl_rcv_msg+0x559/0x800 net/netlink/genetlink.c:1067
netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2549
genl_rcv+0x28/0x40 net/netlink/genetlink.c:1078
netlink_unicast_kernel net/netlink/af_netlink.c:1339 [inline]
netlink_unicast+0x539/0x800 net/netlink/af_netlink.c:1365
netlink_sendmsg+0x93c/0xe30 net/netlink/af_netlink.c:1914
sock_sendmsg_nosec net/socket.c:725 [inline]
sock_sendmsg+0xd9/0x180 net/socket.c:748
____sys_sendmsg+0x6ac/0x940 net/socket.c:2494
___sys_sendmsg+0x135/0x1d0 net/socket.c:2548
__sys_sendmsg+0x117/0x1e0 net/socket.c:2577
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fa14f07cae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa14fd080c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fa14f19bf80 RCX: 00007fa14f07cae9
RDX: 0000000000000000 RSI: 00000000200001c0 RDI: 0000000000000004
RBP: 00007fa14f0c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fa14f19bf80 R15: 00007ffc19a92128
=============================
WARNING: suspicious RCU usage
6.5.0-rc6-syzkaller-00138-ga0e026e7b37e #0 Not tainted
-----------------------------
include/net/addrconf.h:315 suspicious rcu_dereference_check() usage!
other info that might help us debug this:
rcu_scheduler_active = 2, debug_locks = 1
2 locks held by syz-executor.5/14587:
#0: ffffffff8e47af70 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1077
#1: ffffffff8e47b028 (genl_mutex){+.+.}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff8e47b028 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x573/0x800 net/netlink/genetlink.c:1065
stack backtrace:
CPU: 0 PID: 14587 Comm: syz-executor.5 Not tainted 6.5.0-rc6-syzkaller-00138-ga0e026e7b37e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x125/0x1b0 lib/dump_stack.c:106
lockdep_rcu_suspicious+0x20c/0x3b0 kernel/locking/lockdep.c:6719
__in6_dev_get include/net/addrconf.h:315 [inline]
__in6_dev_get include/net/addrconf.h:313 [inline]
addrconf_notify+0x461/0x1940 net/ipv6/addrconf.c:3549
notifier_call_chain+0xb6/0x3b0 kernel/notifier.c:93
call_netdevice_notifiers_info+0xb9/0x130 net/core/dev.c:1962
call_netdevice_notifiers_extack net/core/dev.c:2000 [inline]
call_netdevice_notifiers net/core/dev.c:2014 [inline]
dev_set_mtu_ext+0x1e8/0x5d0 net/core/dev.c:8664
dev_set_mtu+0xb1/0x160 net/core/dev.c:8694
batadv_update_min_mtu+0x6e/0x90 net/batman-adv/hard-interface.c:645
batadv_netlink_set_mesh+0x7d8/0x14e0 net/batman-adv/netlink.c:498
genl_family_rcv_msg_doit.isra.0+0x1ef/0x2d0 net/netlink/genetlink.c:970
genl_family_rcv_msg net/netlink/genetlink.c:1050 [inline]
genl_rcv_msg+0x559/0x800 net/netlink/genetlink.c:1067
netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2549
genl_rcv+0x28/0x40 net/netlink/genetlink.c:1078
netlink_unicast_kernel net/netlink/af_netlink.c:1339 [inline]
netlink_unicast+0x539/0x800 net/netlink/af_netlink.c:1365
netlink_sendmsg+0x93c/0xe30 net/netlink/af_netlink.c:1914
sock_sendmsg_nosec net/socket.c:725 [inline]
sock_sendmsg+0xd9/0x180 net/socket.c:748
____sys_sendmsg+0x6ac/0x940 net/socket.c:2494
___sys_sendmsg+0x135/0x1d0 net/socket.c:2548
__sys_sendmsg+0x117/0x1e0 net/socket.c:2577
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fa14f07cae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa14fd080c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fa14f19bf80 RCX: 00007fa14f07cae9
RDX: 0000000000000000 RSI: 00000000200001c0 RDI: 0000000000000004
RBP: 00007fa14f0c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fa14f19bf80 R15: 00007ffc19a92128
=============================
WARNING: suspicious RCU usage
6.5.0-rc6-syzkaller-00138-ga0e026e7b37e #0 Not tainted
-----------------------------
include/net/addrconf.h:315 suspicious rcu_dereference_check() usage!
other info that might help us debug this:
rcu_scheduler_active = 2, debug_locks = 1
2 locks held by syz-executor.5/14587:
#0: ffffffff8e47af70 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1077
#1: ffffffff8e47b028 (genl_mutex){+.+.}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff8e47b028 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x573/0x800 net/netlink/genetlink.c:1065
stack backtrace:
CPU: 0 PID: 14587 Comm: syz-executor.5 Not tainted 6.5.0-rc6-syzkaller-00138-ga0e026e7b37e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x125/0x1b0 lib/dump_stack.c:106
lockdep_rcu_suspicious+0x20c/0x3b0 kernel/locking/lockdep.c:6719
__in6_dev_get include/net/addrconf.h:315 [inline]
__in6_dev_get include/net/addrconf.h:313 [inline]
ipv6_mc_netdev_event+0x304/0x440 net/ipv6/mcast.c:2836
notifier_call_chain+0xb6/0x3b0 kernel/notifier.c:93
call_netdevice_notifiers_info+0xb9/0x130 net/core/dev.c:1962
call_netdevice_notifiers_extack net/core/dev.c:2000 [inline]
call_netdevice_notifiers net/core/dev.c:2014 [inline]
dev_set_mtu_ext+0x1e8/0x5d0 net/core/dev.c:8664
dev_set_mtu+0xb1/0x160 net/core/dev.c:8694
batadv_update_min_mtu+0x6e/0x90 net/batman-adv/hard-interface.c:645
batadv_netlink_set_mesh+0x7d8/0x14e0 net/batman-adv/netlink.c:498
genl_family_rcv_msg_doit.isra.0+0x1ef/0x2d0 net/netlink/genetlink.c:970
genl_family_rcv_msg net/netlink/genetlink.c:1050 [inline]
genl_rcv_msg+0x559/0x800 net/netlink/genetlink.c:1067
netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2549
genl_rcv+0x28/0x40 net/netlink/genetlink.c:1078
netlink_unicast_kernel net/netlink/af_netlink.c:1339 [inline]
netlink_unicast+0x539/0x800 net/netlink/af_netlink.c:1365
netlink_sendmsg+0x93c/0xe30 net/netlink/af_netlink.c:1914
sock_sendmsg_nosec net/socket.c:725 [inline]
sock_sendmsg+0xd9/0x180 net/socket.c:748
____sys_sendmsg+0x6ac/0x940 net/socket.c:2494
___sys_sendmsg+0x135/0x1d0 net/socket.c:2548
__sys_sendmsg+0x117/0x1e0 net/socket.c:2577
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fa14f07cae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa14fd080c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fa14f19bf80 RCX: 00007fa14f07cae9
RDX: 0000000000000000 RSI: 00000000200001c0 RDI: 0000000000000004
RBP: 00007fa14f0c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fa14f19bf80 R15: 00007ffc19a92128
=============================
WARNING: suspicious RCU usage
6.5.0-rc6-syzkaller-00138-ga0e026e7b37e #0 Not tainted
-----------------------------
net/8021q/vlan.c:391 suspicious rcu_dereference_protected() usage!
other info that might help us debug this:
rcu_scheduler_active = 2, debug_locks = 1
2 locks held by syz-executor.5/14587:
#0: ffffffff8e47af70 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1077
#1: ffffffff8e47b028 (genl_mutex){+.+.}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff8e47b028 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x573/0x800 net/netlink/genetlink.c:1065
stack backtrace:
CPU: 0 PID: 14587 Comm: syz-executor.5 Not tainted 6.5.0-rc6-syzkaller-00138-ga0e026e7b37e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x125/0x1b0 lib/dump_stack.c:106
lockdep_rcu_suspicious+0x20c/0x3b0 kernel/locking/lockdep.c:6719
vlan_device_event+0x619/0x2110 net/8021q/vlan.c:391
notifier_call_chain+0xb6/0x3b0 kernel/notifier.c:93
call_netdevice_notifiers_info+0xb9/0x130 net/core/dev.c:1962
call_netdevice_notifiers_extack net/core/dev.c:2000 [inline]
call_netdevice_notifiers net/core/dev.c:2014 [inline]
dev_set_mtu_ext+0x1e8/0x5d0 net/core/dev.c:8664
dev_set_mtu+0xb1/0x160 net/core/dev.c:8694
batadv_update_min_mtu+0x6e/0x90 net/batman-adv/hard-interface.c:645
batadv_netlink_set_mesh+0x7d8/0x14e0 net/batman-adv/netlink.c:498
genl_family_rcv_msg_doit.isra.0+0x1ef/0x2d0 net/netlink/genetlink.c:970
genl_family_rcv_msg net/netlink/genetlink.c:1050 [inline]
genl_rcv_msg+0x559/0x800 net/netlink/genetlink.c:1067
netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2549
genl_rcv+0x28/0x40 net/netlink/genetlink.c:1078
netlink_unicast_kernel net/netlink/af_netlink.c:1339 [inline]
netlink_unicast+0x539/0x800 net/netlink/af_netlink.c:1365
netlink_sendmsg+0x93c/0xe30 net/netlink/af_netlink.c:1914
sock_sendmsg_nosec net/socket.c:725 [inline]
sock_sendmsg+0xd9/0x180 net/socket.c:748
____sys_sendmsg+0x6ac/0x940 net/socket.c:2494
___sys_sendmsg+0x135/0x1d0 net/socket.c:2548
__sys_sendmsg+0x117/0x1e0 net/socket.c:2577
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fa14f07cae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa14fd080c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fa14f19bf80 RCX: 00007fa14f07cae9
RDX: 0000000000000000 RSI: 00000000200001c0 RDI: 0000000000000004
RBP: 00007fa14f0c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fa14f19bf80 R15: 00007ffc19a92128
=============================
WARNING: suspicious RCU usage
6.5.0-rc6-syzkaller-00138-ga0e026e7b37e #0 Not tainted
-----------------------------
net/tipc/bearer.c:689 suspicious rcu_dereference_protected() usage!
other info that might help us debug this:
rcu_scheduler_active = 2, debug_locks = 1
2 locks held by syz-executor.5/14587:
#0: ffffffff8e47af70 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1077
#1: ffffffff8e47b028 (genl_mutex){+.+.}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff8e47b028 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x573/0x800 net/netlink/genetlink.c:1065
stack backtrace:
CPU: 1 PID: 14587 Comm: syz-executor.5 Not tainted 6.5.0-rc6-syzkaller-00138-ga0e026e7b37e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x125/0x1b0 lib/dump_stack.c:106
lockdep_rcu_suspicious+0x20c/0x3b0 kernel/locking/lockdep.c:6719
tipc_l2_device_event+0x40e/0x700 net/tipc/bearer.c:689
notifier_call_chain+0xb6/0x3b0 kernel/notifier.c:93
call_netdevice_notifiers_info+0xb9/0x130 net/core/dev.c:1962
call_netdevice_notifiers_extack net/core/dev.c:2000 [inline]
call_netdevice_notifiers net/core/dev.c:2014 [inline]
dev_set_mtu_ext+0x1e8/0x5d0 net/core/dev.c:8664
dev_set_mtu+0xb1/0x160 net/core/dev.c:8694
batadv_update_min_mtu+0x6e/0x90 net/batman-adv/hard-interface.c:645
batadv_netlink_set_mesh+0x7d8/0x14e0 net/batman-adv/netlink.c:498
genl_family_rcv_msg_doit.isra.0+0x1ef/0x2d0 net/netlink/genetlink.c:970
genl_family_rcv_msg net/netlink/genetlink.c:1050 [inline]
genl_rcv_msg+0x559/0x800 net/netlink/genetlink.c:1067
netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2549
genl_rcv+0x28/0x40 net/netlink/genetlink.c:1078
netlink_unicast_kernel net/netlink/af_netlink.c:1339 [inline]
netlink_unicast+0x539/0x800 net/netlink/af_netlink.c:1365
netlink_sendmsg+0x93c/0xe30 net/netlink/af_netlink.c:1914
sock_sendmsg_nosec net/socket.c:725 [inline]
sock_sendmsg+0xd9/0x180 net/socket.c:748
____sys_sendmsg+0x6ac/0x940 net/socket.c:2494
___sys_sendmsg+0x135/0x1d0 net/socket.c:2548
__sys_sendmsg+0x117/0x1e0 net/socket.c:2577
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fa14f07cae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa14fd080c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fa14f19bf80 RCX: 00007fa14f07cae9
RDX: 0000000000000000 RSI: 00000000200001c0 RDI: 0000000000000004
RBP: 00007fa14f0c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fa14f19bf80 R15: 00007ffc19a92128
=============================
WARNING: suspicious RCU usage
6.5.0-rc6-syzkaller-00138-ga0e026e7b37e #0 Not tainted
-----------------------------
net/mpls/internal.h:189 suspicious rcu_dereference_check() usage!
other info that might help us debug this:
rcu_scheduler_active = 2, debug_locks = 1
2 locks held by syz-executor.5/14587:
#0: ffffffff8e47af70 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1077
#1: ffffffff8e47b028 (genl_mutex){+.+.}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff8e47b028 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x573/0x800 net/netlink/genetlink.c:1065
stack backtrace:
CPU: 0 PID: 14587 Comm: syz-executor.5 Not tainted 6.5.0-rc6-syzkaller-00138-ga0e026e7b37e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x125/0x1b0 lib/dump_stack.c:106
lockdep_rcu_suspicious+0x20c/0x3b0 kernel/locking/lockdep.c:6719
mpls_dev_get net/mpls/internal.h:189 [inline]
mpls_dev_get net/mpls/internal.h:187 [inline]
mpls_dev_notify+0x2d8/0xa00 net/mpls/af_mpls.c:1624
notifier_call_chain+0xb6/0x3b0 kernel/notifier.c:93
call_netdevice_notifiers_info+0xb9/0x130 net/core/dev.c:1962
call_netdevice_notifiers_extack net/core/dev.c:2000 [inline]
call_netdevice_notifiers net/core/dev.c:2014 [inline]
dev_set_mtu_ext+0x1e8/0x5d0 net/core/dev.c:8664
dev_set_mtu+0xb1/0x160 net/core/dev.c:8694
batadv_update_min_mtu+0x6e/0x90 net/batman-adv/hard-interface.c:645
batadv_netlink_set_mesh+0x7d8/0x14e0 net/batman-adv/netlink.c:498
genl_family_rcv_msg_doit.isra.0+0x1ef/0x2d0 net/netlink/genetlink.c:970
genl_family_rcv_msg net/netlink/genetlink.c:1050 [inline]
genl_rcv_msg+0x559/0x800 net/netlink/genetlink.c:1067
netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2549
genl_rcv+0x28/0x40 net/netlink/genetlink.c:1078
netlink_unicast_kernel net/netlink/af_netlink.c:1339 [inline]
netlink_unicast+0x539/0x800 net/netlink/af_netlink.c:1365
netlink_sendmsg+0x93c/0xe30 net/netlink/af_netlink.c:1914
sock_sendmsg_nosec net/socket.c:725 [inline]
sock_sendmsg+0xd9/0x180 net/socket.c:748
____sys_sendmsg+0x6ac/0x940 net/socket.c:2494
___sys_sendmsg+0x135/0x1d0 net/socket.c:2548
__sys_sendmsg+0x117/0x1e0 net/socket.c:2577
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fa14f07cae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa14fd080c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fa14f19bf80 RCX: 00007fa14f07cae9
RDX: 0000000000000000 RSI: 00000000200001c0 RDI: 0000000000000004
RBP: 00007fa14f0c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fa14f19bf80 R15: 00007ffc19a92128
------------[ cut here ]------------
RTNL: assertion failed at net/hsr/hsr_slave.h (24)
WARNING: CPU: 1 PID: 14587 at net/hsr/hsr_slave.h:24 hsr_port_get_rtnl net/hsr/hsr_slave.h:24 [inline]
WARNING: CPU: 1 PID: 14587 at net/hsr/hsr_slave.h:24 hsr_netdev_notify+0x9d9/0xd70 net/hsr/hsr_main.c:42
Modules linked in:
CPU: 1 PID: 14587 Comm: syz-executor.5 Not tainted 6.5.0-rc6-syzkaller-00138-ga0e026e7b37e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
RIP: 0010:hsr_port_get_rtnl net/hsr/hsr_slave.h:24 [inline]
RIP: 0010:hsr_netdev_notify+0x9d9/0xd70 net/hsr/hsr_main.c:42
Code: 0f 85 f4 f6 ff ff e8 26 75 75 f7 ba 18 00 00 00 48 c7 c6 40 84 ad 8b 48 c7 c7 80 84 ad 8b c6 05 9a 44 85 04 01 e8 47 37 3c f7 <0f> 0b e9 c9 f6 ff ff 48 8b 7c 24 08 e8 36 82 c9 f7 e9 dd fc ff ff
RSP: 0018:ffffc900031ef1b0 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 0000000000000018 RCX: ffffc90006cac000
RDX: 0000000000040000 RSI: ffffffff814ccc86 RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: 1ffff9200063de38
R13: ffff88802bdf4000 R14: ffffc900031ef1e0 R15: 0000000000000000
FS: 00007fa14fd086c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555556c26938 CR3: 000000001f2b2000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
notifier_call_chain+0xb6/0x3b0 kernel/notifier.c:93
call_netdevice_notifiers_info+0xb9/0x130 net/core/dev.c:1962
call_netdevice_notifiers_extack net/core/dev.c:2000 [inline]
call_netdevice_notifiers net/core/dev.c:2014 [inline]
dev_set_mtu_ext+0x1e8/0x5d0 net/core/dev.c:8664
dev_set_mtu+0xb1/0x160 net/core/dev.c:8694
batadv_update_min_mtu+0x6e/0x90 net/batman-adv/hard-interface.c:645
batadv_netlink_set_mesh+0x7d8/0x14e0 net/batman-adv/netlink.c:498
genl_family_rcv_msg_doit.isra.0+0x1ef/0x2d0 net/netlink/genetlink.c:970
genl_family_rcv_msg net/netlink/genetlink.c:1050 [inline]
genl_rcv_msg+0x559/0x800 net/netlink/genetlink.c:1067
netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2549
genl_rcv+0x28/0x40 net/netlink/genetlink.c:1078
netlink_unicast_kernel net/netlink/af_netlink.c:1339 [inline]
netlink_unicast+0x539/0x800 net/netlink/af_netlink.c:1365
netlink_sendmsg+0x93c/0xe30 net/netlink/af_netlink.c:1914
sock_sendmsg_nosec net/socket.c:725 [inline]
sock_sendmsg+0xd9/0x180 net/socket.c:748
____sys_sendmsg+0x6ac/0x940 net/socket.c:2494
___sys_sendmsg+0x135/0x1d0 net/socket.c:2548
__sys_sendmsg+0x117/0x1e0 net/socket.c:2577
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fa14f07cae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa14fd080c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fa14f19bf80 RCX: 00007fa14f07cae9
RDX: 0000000000000000 RSI: 00000000200001c0 RDI: 0000000000000004
RBP: 00007fa14f0c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fa14f19bf80 R15: 00007ffc19a92128