possible deadlock in lapbeth_device_event
============================================
WARNING: possible recursive locking detected
6.14.0-rc6-syzkaller-g6855b9be9cf7 #0 Not tainted
--------------------------------------------
dhcpcd/5503 is trying to acquire lock:
ffff888029c7cd28 (&dev->lock){+.+.}-{4:4}, at: netdev_lock include/linux/netdevice.h:2731 [inline]
ffff888029c7cd28 (&dev->lock){+.+.}-{4:4}, at: netif_napi_add_weight include/linux/netdevice.h:2763 [inline]
ffff888029c7cd28 (&dev->lock){+.+.}-{4:4}, at: lapbeth_new_device drivers/net/wan/lapbether.c:415 [inline]
ffff888029c7cd28 (&dev->lock){+.+.}-{4:4}, at: lapbeth_device_event+0x766/0xa20 drivers/net/wan/lapbether.c:460
but task is already holding lock:
ffff888061e84d28 (&dev->lock){+.+.}-{4:4}, at: netdev_lock include/linux/netdevice.h:2731 [inline]
ffff888061e84d28 (&dev->lock){+.+.}-{4:4}, at: netdev_lock_ops include/net/netdev_lock.h:40 [inline]
ffff888061e84d28 (&dev->lock){+.+.}-{4:4}, at: dev_change_flags+0x120/0x270 net/core/dev_api.c:67
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0
----
lock(&dev->lock);
lock(&dev->lock);
*** DEADLOCK ***
May be due to missing lock nesting notation
2 locks held by dhcpcd/5503:
#0: ffffffff8fed6f88 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
#0: ffffffff8fed6f88 (rtnl_mutex){+.+.}-{4:4}, at: devinet_ioctl+0x34c/0x1d80 net/ipv4/devinet.c:1121
#1: ffff888061e84d28 (&dev->lock){+.+.}-{4:4}, at: netdev_lock include/linux/netdevice.h:2731 [inline]
#1: ffff888061e84d28 (&dev->lock){+.+.}-{4:4}, at: netdev_lock_ops include/net/netdev_lock.h:40 [inline]
#1: ffff888061e84d28 (&dev->lock){+.+.}-{4:4}, at: dev_change_flags+0x120/0x270 net/core/dev_api.c:67
stack backtrace:
CPU: 0 UID: 0 PID: 5503 Comm: dhcpcd Not tainted 6.14.0-rc6-syzkaller-g6855b9be9cf7 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
print_deadlock_bug+0x483/0x620 kernel/locking/lockdep.c:3039
check_deadlock kernel/locking/lockdep.c:3091 [inline]
validate_chain+0x15e2/0x5920 kernel/locking/lockdep.c:3893
__lock_acquire+0x1397/0x2100 kernel/locking/lockdep.c:5228
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5851
__mutex_lock_common kernel/locking/mutex.c:585 [inline]
__mutex_lock+0x19c/0x1010 kernel/locking/mutex.c:730
netdev_lock include/linux/netdevice.h:2731 [inline]
netif_napi_add_weight include/linux/netdevice.h:2763 [inline]
lapbeth_new_device drivers/net/wan/lapbether.c:415 [inline]
lapbeth_device_event+0x766/0xa20 drivers/net/wan/lapbether.c:460
notifier_call_chain+0x1a5/0x3f0 kernel/notifier.c:85
__dev_notify_flags+0x207/0x400
netif_change_flags+0xf0/0x1a0 net/core/dev.c:9406
dev_change_flags+0x146/0x270 net/core/dev_api.c:68
devinet_ioctl+0xea2/0x1d80 net/ipv4/devinet.c:1200
inet_ioctl+0x3d7/0x4f0 net/ipv4/af_inet.c:1001
sock_do_ioctl+0x158/0x460 net/socket.c:1190
sock_ioctl+0x626/0x8e0 net/socket.c:1309
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:906 [inline]
__se_sys_ioctl+0xf5/0x170 fs/ioctl.c:892
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc62de6bd49
Code: 5c c3 48 8d 44 24 08 48 89 54 24 e0 48 89 44 24 c0 48 8d 44 24 d0 48 89 44 24 c8 b8 10 00 00 00 c7 44 24 b8 10 00 00 00 0f 05 <41> 89 c0 3d 00 f0 ff ff 76 10 48 8b 15 ae 60 0d 00 f7 d8 41 83 c8
RSP: 002b:00007ffda2ec0348 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fc62dd9d6c0 RCX: 00007fc62de6bd49
RDX: 00007ffda2ed0538 RSI: 0000000000008914 RDI: 000000000000000e
RBP: 00007ffda2ee06f8 R08: 00007ffda2ed04f8 R09: 00007ffda2ed04a8
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffda2ed0538 R14: 0000000000000028 R15: 0000000000008914
</TASK>
Warning: Permanently added '10.128.1.149' (ED25519) to the list of known hosts.
2025/03/20 15:40:46 ignoring optional flag "sandboxArg"="0"
2025/03/20 15:40:46 ignoring optional flag "type"="gce"
2025/03/20 15:40:46 parsed 1 programs
[ 66.616575][ T5832] cgroup: Unknown subsys name 'net'
[ 66.765962][ T5832] cgroup: Unknown subsys name 'cpuset'
[ 66.774030][ T5832] cgroup: Unknown subsys name 'rlimit'
[ 68.053133][ T5832] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k
[ 70.505445][ T5842] soft_limit_in_bytes is deprecated and will be removed. Please report your usecase to linux-mm@kvack.org if you depend on this functionality.
[ 71.307661][ T1079] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 71.320519][ T1079] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 71.374621][ T1079] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 71.383188][ T1079] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 71.706531][ T1300] ieee802154 phy0 wpan0: encryption failed: -22
[ 71.717938][ T1300] ieee802154 phy1 wpan1: encryption failed: -22
[ 71.996888][ T5893] chnl_net:caif_netlink_parms(): no params data found
[ 72.087904][ T5893] bridge0: port 1(bridge_slave_0) entered blocking state
[ 72.095847][ T5893] bridge0: port 1(bridge_slave_0) entered disabled state
[ 72.103188][ T5893] bridge_slave_0: entered allmulticast mode
[ 72.109854][ T5893] bridge_slave_0: entered promiscuous mode
[ 72.120319][ T5893] bridge0: port 2(bridge_slave_1) entered blocking state
[ 72.129089][ T5893] bridge0: port 2(bridge_slave_1) entered disabled state
[ 72.136465][ T5893] bridge_slave_1: entered allmulticast mode
[ 72.143516][ T5893] bridge_slave_1: entered promiscuous mode
[ 72.173391][ T5893] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 72.184875][ T5893] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 72.213809][ T5893] team0: Port device team_slave_0 added
[ 72.221784][ T5893] team0: Port device team_slave_1 added
[ 72.243086][ T5893] batman_adv: batadv0: Adding interface: batadv_slave_0
[ 72.250064][ T5893] 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.
[ 72.276041][ T5893] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[ 72.288940][ T5893] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 72.295968][ T5893] 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.
[ 72.321956][ T5893] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 72.352332][ T5893] hsr_slave_0: entered promiscuous mode
[ 72.358996][ T5893] hsr_slave_1: entered promiscuous mode
[ 72.448954][ T5893] netdevsim netdevsim0 netdevsim0: renamed from eth0
[ 72.460479][ T5893] netdevsim netdevsim0 netdevsim1: renamed from eth1
[ 72.470865][ T5893] netdevsim netdevsim0 netdevsim2: renamed from eth2
[ 72.480925][ T5893] netdevsim netdevsim0 netdevsim3: renamed from eth3
[ 72.534191][ T5893] 8021q: adding VLAN 0 to HW filter on device bond0
[ 72.560464][ T5893] 8021q: adding VLAN 0 to HW filter on device team0
[ 72.573834][ T1108] bridge0: port 1(bridge_slave_0) entered blocking state
[ 72.581035][ T1108] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 72.597950][ T36] bridge0: port 2(bridge_slave_1) entered blocking state
[ 72.605090][ T36] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 72.723437][ T5893] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 72.760090][ T5893] veth0_vlan: entered promiscuous mode
[ 72.770536][ T5893] veth1_vlan: entered promiscuous mode
[ 72.790858][ T5893] veth0_macvtap: entered promiscuous mode
[ 72.799956][ T5893] veth1_macvtap: entered promiscuous mode
[ 72.817345][ T5893] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 72.831216][ T5893] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 72.843605][ T5893] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[ 72.854059][ T5893] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[ 72.863127][ T5893] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[ 72.871944][ T5893] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[ 72.985590][ T12] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 73.083927][ T12] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 73.144910][ T12] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 73.191585][ T12] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 73.382263][ T54] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1
[ 73.391430][ T54] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9
[ 73.402168][ T54] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9
[ 73.410997][ T54] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4
[ 73.419385][ T54] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3
[ 73.427499][ T54] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2
2025/03/20 15:40:56 executed programs: 0
[ 73.925962][ T54] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1
[ 73.934795][ T54] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9
[ 73.946205][ T54] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9
[ 73.956682][ T54] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4
[ 73.965157][ T54] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3
[ 73.972771][ T54] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2
[ 74.072845][ T5939] chnl_net:caif_netlink_parms(): no params data found
[ 74.127617][ T5939] bridge0: port 1(bridge_slave_0) entered blocking state
[ 74.135061][ T5939] bridge0: port 1(bridge_slave_0) entered disabled state
[ 74.142220][ T5939] bridge_slave_0: entered allmulticast mode
[ 74.149632][ T5939] bridge_slave_0: entered promiscuous mode
[ 74.157280][ T5939] bridge0: port 2(bridge_slave_1) entered blocking state
[ 74.164518][ T5939] bridge0: port 2(bridge_slave_1) entered disabled state
[ 74.171714][ T5939] bridge_slave_1: entered allmulticast mode
[ 74.178930][ T5939] bridge_slave_1: entered promiscuous mode
[ 74.206412][ T5939] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 74.218128][ T5939] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 74.241663][ T5939] team0: Port device team_slave_0 added
[ 74.249231][ T5939] team0: Port device team_slave_1 added
[ 74.269774][ T5939] batman_adv: batadv0: Adding interface: batadv_slave_0
[ 74.277148][ T5939] 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.
[ 74.303314][ T5939] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[ 74.315746][ T5939] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 74.323667][ T5939] 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.
[ 74.351446][ T5939] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 74.390888][ T5939] hsr_slave_0: entered promiscuous mode
[ 74.397100][ T5939] hsr_slave_1: entered promiscuous mode
[ 74.403347][ T5939] debugfs: Directory 'hsr0' with parent 'hsr' already present!
[ 74.411178][ T5939] Cannot create hsr debugfs directory
[ 76.024541][ T5148] Bluetooth: hci0: command tx timeout
[ 76.412730][ T12] bridge_slave_1: left allmulticast mode
[ 76.418658][ T12] bridge_slave_1: left promiscuous mode
[ 76.437885][ T12] bridge0: port 2(bridge_slave_1) entered disabled state
[ 76.450712][ T12] bridge_slave_0: left allmulticast mode
[ 76.456717][ T12] bridge_slave_0: left promiscuous mode
[ 76.462995][ T12] bridge0: port 1(bridge_slave_0) entered disabled state
[ 76.710468][ T12] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface
[ 76.721240][ T12] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface
[ 76.731263][ T12] bond0 (unregistering): Released all slaves
[ 76.877805][ T12] hsr_slave_0: left promiscuous mode
[ 76.898845][ T12] hsr_slave_1: left promiscuous mode
[ 76.915592][ T12] batman_adv: batadv0: Interface deactivated: batadv_slave_0
[ 76.933453][ T12] batman_adv: batadv0: Removing interface: batadv_slave_0
[ 76.953770][ T12] batman_adv: batadv0: Interface deactivated: batadv_slave_1
[ 76.961219][ T12] batman_adv: batadv0: Removing interface: batadv_slave_1
[ 76.996034][ T12] veth1_macvtap: left promiscuous mode
[ 77.001978][ T12] veth0_macvtap: left promiscuous mode
[ 77.033051][ T12] veth1_vlan: left promiscuous mode
[ 77.038786][ T12] veth0_vlan: left promiscuous mode
[ 77.502798][ T12] team0 (unregistering): Port device team_slave_1 removed
[ 77.536575][ T12] team0 (unregistering): Port device team_slave_0 removed
[ 77.801305][ T5503]
[ 77.803680][ T5503] ============================================
[ 77.810125][ T5503] WARNING: possible recursive locking detected
[ 77.816291][ T5503] 6.14.0-rc6-syzkaller-g6855b9be9cf7 #0 Not tainted
[ 77.822873][ T5503] --------------------------------------------
[ 77.829106][ T5503] dhcpcd/5503 is trying to acquire lock:
[ 77.834716][ T5503] ffff888029c7cd28 (&dev->lock){+.+.}-{4:4}, at: lapbeth_device_event+0x766/0xa20
[ 77.844032][ T5503]
[ 77.844032][ T5503] but task is already holding lock:
[ 77.851394][ T5503] ffff888061e84d28 (&dev->lock){+.+.}-{4:4}, at: dev_change_flags+0x120/0x270
[ 77.860289][ T5503]
[ 77.860289][ T5503] other info that might help us debug this:
[ 77.868384][ T5503] Possible unsafe locking scenario:
[ 77.868384][ T5503]
[ 77.875822][ T5503] CPU0
[ 77.879090][ T5503] ----
[ 77.882354][ T5503] lock(&dev->lock);
[ 77.886329][ T5503] lock(&dev->lock);
[ 77.890322][ T5503]
[ 77.890322][ T5503] *** DEADLOCK ***
[ 77.890322][ T5503]
[ 77.898448][ T5503] May be due to missing lock nesting notation
[ 77.898448][ T5503]
[ 77.907183][ T5503] 2 locks held by dhcpcd/5503:
[ 77.911928][ T5503] #0: ffffffff8fed6f88 (rtnl_mutex){+.+.}-{4:4}, at: devinet_ioctl+0x34c/0x1d80
[ 77.921172][ T5503] #1: ffff888061e84d28 (&dev->lock){+.+.}-{4:4}, at: dev_change_flags+0x120/0x270
[ 77.930506][ T5503]
[ 77.930506][ T5503] stack backtrace:
[ 77.936402][ T5503] CPU: 0 UID: 0 PID: 5503 Comm: dhcpcd Not tainted 6.14.0-rc6-syzkaller-g6855b9be9cf7 #0
[ 77.936416][ T5503] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 77.936428][ T5503] Call Trace:
[ 77.936435][ T5503] <TASK>
[ 77.936441][ T5503] dump_stack_lvl+0x241/0x360
[ 77.936459][ T5503] ? __pfx_dump_stack_lvl+0x10/0x10
[ 77.936471][ T5503] ? __pfx__printk+0x10/0x10
[ 77.936483][ T5503] ? lockdep_unlock+0x16a/0x300
[ 77.936502][ T5503] print_deadlock_bug+0x483/0x620
[ 77.936516][ T5503] validate_chain+0x15e2/0x5920
[ 77.936533][ T5503] ? is_bpf_text_address+0x26/0x2a0
[ 77.936546][ T5503] ? unwind_next_frame+0x18e6/0x22d0
[ 77.936564][ T5503] ? __pfx_validate_chain+0x10/0x10
[ 77.936576][ T5503] ? preempt_count_add+0x93/0x190
[ 77.936592][ T5503] ? is_bpf_text_address+0x285/0x2a0
[ 77.936603][ T5503] ? is_bpf_text_address+0x26/0x2a0
[ 77.936614][ T5503] ? __pfx_stack_trace_consume_entry+0x10/0x10
[ 77.936630][ T5503] ? kernel_text_address+0xa7/0xe0
[ 77.936643][ T5503] ? look_up_lock_class+0x77/0x170
[ 77.936658][ T5503] ? register_lock_class+0x102/0x980
[ 77.936676][ T5503] ? __pfx_register_lock_class+0x10/0x10
[ 77.936694][ T5503] ? mark_lock+0x9a/0x360
[ 77.936705][ T5503] __lock_acquire+0x1397/0x2100
[ 77.936726][ T5503] lock_acquire+0x1ed/0x550
[ 77.936742][ T5503] ? lapbeth_device_event+0x766/0xa20
[ 77.936757][ T5503] ? __pfx_lock_acquire+0x10/0x10
[ 77.936774][ T5503] ? __pfx___might_resched+0x10/0x10
[ 77.936793][ T5503] __mutex_lock+0x19c/0x1010
[ 77.936808][ T5503] ? lapbeth_device_event+0x766/0xa20
[ 77.936821][ T5503] ? __asan_memset+0x23/0x50
[ 77.936834][ T5503] ? lapbeth_device_event+0x766/0xa20
[ 77.936846][ T5503] ? __pfx___mutex_lock+0x10/0x10
[ 77.936865][ T5503] ? __raw_spin_lock_init+0x45/0x100
[ 77.936879][ T5503] lapbeth_device_event+0x766/0xa20
[ 77.936893][ T5503] notifier_call_chain+0x1a5/0x3f0
[ 77.936911][ T5503] __dev_notify_flags+0x207/0x400
[ 77.936925][ T5503] ? dev_set_rx_mode+0xb8/0x2e0
[ 77.936938][ T5503] ? __pfx___dev_notify_flags+0x10/0x10
[ 77.936950][ T5503] ? __dev_change_flags+0x515/0x6f0
[ 77.936964][ T5503] ? __pfx___mutex_lock+0x10/0x10
[ 77.936979][ T5503] ? __pfx___dev_change_flags+0x10/0x10
[ 77.936992][ T5503] ? __pfx___mutex_lock+0x10/0x10
[ 77.937008][ T5503] netif_change_flags+0xf0/0x1a0
[ 77.937021][ T5503] dev_change_flags+0x146/0x270
[ 77.937035][ T5503] devinet_ioctl+0xea2/0x1d80
[ 77.937056][ T5503] ? __pfx_devinet_ioctl+0x10/0x10
[ 77.937074][ T5503] ? get_user_ifreq+0x1bb/0x200
[ 77.937090][ T5503] inet_ioctl+0x3d7/0x4f0
[ 77.937104][ T5503] ? __pfx_inet_ioctl+0x10/0x10
[ 77.937119][ T5503] ? tomoyo_path_number_perm+0x5dd/0x770
[ 77.937142][ T5503] sock_do_ioctl+0x158/0x460
[ 77.937159][ T5503] ? __pfx_sock_do_ioctl+0x10/0x10
[ 77.937175][ T5503] ? __pfx_lock_release+0x10/0x10
[ 77.937195][ T5503] sock_ioctl+0x626/0x8e0
[ 77.937215][ T5503] ? __pfx_sock_ioctl+0x10/0x10
[ 77.937231][ T5503] ? lockdep_hardirqs_on_prepare+0x43d/0x780
[ 77.937248][ T5503] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10
[ 77.937265][ T5503] ? __pfx_sock_ioctl+0x10/0x10
[ 77.937280][ T5503] __se_sys_ioctl+0xf5/0x170
[ 77.937293][ T5503] do_syscall_64+0xf3/0x230
[ 77.937310][ T5503] ? clear_bhb_loop+0x35/0x90
[ 77.937327][ T5503] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 77.937348][ T5503] RIP: 0033:0x7fc62de6bd49
[ 77.937363][ T5503] Code: 5c c3 48 8d 44 24 08 48 89 54 24 e0 48 89 44 24 c0 48 8d 44 24 d0 48 89 44 24 c8 b8 10 00 00 00 c7 44 24 b8 10 00 00 00 0f 05 <41> 89 c0 3d 00 f0 ff ff 76 10 48 8b 15 ae 60 0d 00 f7 d8 41 83 c8
[ 77.937374][ T5503] RSP: 002b:00007ffda2ec0348 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 77.937387][ T5503] RAX: ffffffffffffffda RBX: 00007fc62dd9d6c0 RCX: 00007fc62de6bd49
[ 77.937396][ T5503] RDX: 00007ffda2ed0538 RSI: 0000000000008914 RDI: 000000000000000e
[ 77.937405][ T5503] RBP: 00007ffda2ee06f8 R08: 00007ffda2ed04f8 R09: 00007ffda2ed04a8
[ 77.937413][ T5503] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 77.937420][ T5503] R13: 00007ffda2ed0538 R14: 0000000000000028 R15: 0000000000008914
[ 77.937433][ T5503] </TASK>
[ 78.333464][ T5148] Bluetooth: hci0: command tx timeout
[ 78.477477][ T5939] netdevsim netdevsim0 netdevsim0: renamed from eth0
[ 78.493549][ T5939] netdevsim netdevsim0 netdevsim1: renamed from eth1
[ 78.503498][ T5939] netdevsim netdevsim0 netdevsim2: renamed from eth2
[ 78.512328][ T5939] netdevsim netdevsim0 netdevsim3: renamed from eth3
[ 78.565932][ T5939] 8021q: adding VLAN 0 to HW filter on device bond0
[ 78.582287][ T5939] 8021q: adding VLAN 0 to HW filter on device team0
[ 78.593907][ T61] bridge0: port 1(bridge_slave_0) entered blocking state
[ 78.601123][ T61] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 78.612174][ T36] bridge0: port 2(bridge_slave_1) entered blocking state
[ 78.619411][ T36] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 78.739611][ T5939] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 78.778966][ T5939] veth0_vlan: entered promiscuous mode
[ 78.789333][ T5939] veth1_vlan: entered promiscuous mode
[ 78.813599][ T5939] veth0_macvtap: entered promiscuous mode
[ 78.821834][ T5939] veth1_macvtap: entered promiscuous mode
[ 78.839641][ T5939] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 78.852190][ T5939] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 78.864244][ T5939] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[ 78.874982][ T5939] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[ 78.885277][ T5939] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[ 78.895050][ T5939] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[ 78.932201][ T5939] ieee80211 phy5: Selected rate control algorithm 'minstrel_ht'
[ 78.951086][ T36] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 78.952397][ T5939] ieee80211 phy6: Selected rate control algorithm 'minstrel_ht'
[ 78.968014][ T36] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 78.983846][ T1108] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 78.991709][ T1108] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
syzkaller build log:
go env (err=<nil>)
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-2/linux/gopath/pkg/mod'
GONOPROXY=''
GONOSUMDB=''
GOOS='linux'
GOPATH='/syzkaller/jobs-2/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='go1.22.7'
GCCGO='gccgo'
GOAMD64='v1'
AR='ar'
CC='gcc'
CXX='g++'
CGO_ENABLED='1'
GOMOD='/syzkaller/jobs-2/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-build1142612327=/tmp/go-build -gno-record-gcc-switches'
git status (err=<nil>)
HEAD detached at e4bacdaf34
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
go fmt ./sys/... >/dev/null
touch .descriptions
GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=e4bacdaf3417006ad6aa0d911a44b49bb25a6e1a -X 'github.com/google/syzkaller/prog.gitRevisionDate=20240814-175600'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-execprog github.com/google/syzkaller/tools/syz-execprog
mkdir -p ./bin/linux_amd64
g++ -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 -std=c++17 -I. -Iexecutor/_include -fpermissive -w -DGOOS_linux=1 -DGOARCH_amd64=1 \
-DHOSTGOOS_linux=1 -DGIT_REVISION=\"e4bacdaf3417006ad6aa0d911a44b49bb25a6e1a\"
/usr/bin/ld: /tmp/ccxWwAtT.o: in function `test_cover_filter()':
executor.cc:(.text+0x13e0b): warning: the use of `tempnam' is dangerous, better use `mkstemp'
/usr/bin/ld: /tmp/ccxWwAtT.o: in function `Connection::Connect(char const*, char const*)':
executor.cc:(.text._ZN10Connection7ConnectEPKcS1_[_ZN10Connection7ConnectEPKcS1_]+0x104): warning: Using 'gethostbyname' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking