Extracting prog: 1m13.523217764s
Minimizing prog: 6m26.569424467s
Simplifying prog options: 2m27.903036155s
Extracting C: 25.54775865s
Simplifying C: 0s


extracting reproducer from 1 programs
testing a last program of every proc
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_sco-bind$bt_sco-listen-syz_emit_vhci-syz_emit_vhci
detailed listing:
executing program 0:
r0 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
bind$bt_sco(r0, &(0x7f0000000080), 0x8)
listen(r0, 0x0)
syz_emit_vhci(&(0x7f0000000180)=@HCI_EVENT_PKT={0x4, @hci_ev_conn_request={{0x4, 0xa}, {@any, "546792"}}}, 0xd)
syz_emit_vhci(&(0x7f0000000140)=@HCI_EVENT_PKT={0x4, @hci_ev_sync_conn_complete={{0x2c, 0x11}}}, 0x14)

program crashed: BUG: sleeping function called from invalid context in lock_sock_nested
single: successfully extracted reproducer
found reproducer with 5 syscalls
minimizing guilty program
testing program (duration=43.162343836s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_sco-bind$bt_sco-listen-syz_emit_vhci
detailed listing:
executing program 0:
r0 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
bind$bt_sco(r0, &(0x7f0000000080), 0x8)
listen(r0, 0x0)
syz_emit_vhci(&(0x7f0000000180)=@HCI_EVENT_PKT={0x4, @hci_ev_conn_request={{0x4, 0xa}, {@any, "546792"}}}, 0xd)

program did not crash
testing program (duration=43.162343836s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_sco-bind$bt_sco-listen-syz_emit_vhci
detailed listing:
executing program 0:
r0 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
bind$bt_sco(r0, &(0x7f0000000080), 0x8)
listen(r0, 0x0)
syz_emit_vhci(&(0x7f0000000140)=@HCI_EVENT_PKT={0x4, @hci_ev_sync_conn_complete={{0x2c, 0x11}}}, 0x14)

program did not crash
testing program (duration=43.162343836s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_sco-bind$bt_sco-syz_emit_vhci-syz_emit_vhci
detailed listing:
executing program 0:
r0 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
bind$bt_sco(r0, &(0x7f0000000080), 0x8)
syz_emit_vhci(&(0x7f0000000180)=@HCI_EVENT_PKT={0x4, @hci_ev_conn_request={{0x4, 0xa}, {@any, "546792"}}}, 0xd)
syz_emit_vhci(&(0x7f0000000140)=@HCI_EVENT_PKT={0x4, @hci_ev_sync_conn_complete={{0x2c, 0x11}}}, 0x14)

program did not crash
testing program (duration=43.162343836s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_sco-listen-syz_emit_vhci-syz_emit_vhci
detailed listing:
executing program 0:
r0 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
listen(r0, 0x0)
syz_emit_vhci(&(0x7f0000000180)=@HCI_EVENT_PKT={0x4, @hci_ev_conn_request={{0x4, 0xa}, {@any, "546792"}}}, 0xd)
syz_emit_vhci(&(0x7f0000000140)=@HCI_EVENT_PKT={0x4, @hci_ev_sync_conn_complete={{0x2c, 0x11}}}, 0x14)

program did not crash
testing program (duration=43.162343836s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bind$bt_sco-listen-syz_emit_vhci-syz_emit_vhci
detailed listing:
executing program 0:
bind$bt_sco(0xffffffffffffffff, &(0x7f0000000080), 0x8)
listen(0xffffffffffffffff, 0x0)
syz_emit_vhci(&(0x7f0000000180)=@HCI_EVENT_PKT={0x4, @hci_ev_conn_request={{0x4, 0xa}, {@any, "546792"}}}, 0xd)
syz_emit_vhci(&(0x7f0000000140)=@HCI_EVENT_PKT={0x4, @hci_ev_sync_conn_complete={{0x2c, 0x11}}}, 0x14)

program did not crash
testing program (duration=43.162343836s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_sco-bind$bt_sco-listen-syz_emit_vhci-syz_emit_vhci
detailed listing:
executing program 0:
r0 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
bind$bt_sco(r0, 0x0, 0x0)
listen(r0, 0x0)
syz_emit_vhci(&(0x7f0000000180)=@HCI_EVENT_PKT={0x4, @hci_ev_conn_request={{0x4, 0xa}, {@any, "546792"}}}, 0xd)
syz_emit_vhci(&(0x7f0000000140)=@HCI_EVENT_PKT={0x4, @hci_ev_sync_conn_complete={{0x2c, 0x11}}}, 0x14)

program did not crash
testing program (duration=43.162343836s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_sco-bind$bt_sco-listen-syz_emit_vhci-syz_emit_vhci
detailed listing:
executing program 0:
r0 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
bind$bt_sco(r0, &(0x7f0000000080), 0x8)
listen(r0, 0x0)
syz_emit_vhci(0x0, 0x0)
syz_emit_vhci(&(0x7f0000000140)=@HCI_EVENT_PKT={0x4, @hci_ev_sync_conn_complete={{0x2c, 0x11}}}, 0x14)

program did not crash
testing program (duration=43.162343836s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_sco-bind$bt_sco-listen-syz_emit_vhci-syz_emit_vhci
detailed listing:
executing program 0:
r0 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
bind$bt_sco(r0, &(0x7f0000000080), 0x8)
listen(r0, 0x0)
syz_emit_vhci(&(0x7f0000000180)=@HCI_EVENT_PKT={0x4, @hci_ev_conn_request={{0x4, 0xa}, {@any, "546792"}}}, 0xd)
syz_emit_vhci(0x0, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=43.162343836s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_sco-bind$bt_sco-listen-syz_emit_vhci-syz_emit_vhci
program did not crash
simplifying guilty program options
testing program (duration=43.162343836s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_sco-bind$bt_sco-listen-syz_emit_vhci-syz_emit_vhci
detailed listing:
executing program 0:
r0 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
bind$bt_sco(r0, &(0x7f0000000080), 0x8)
listen(r0, 0x0)
syz_emit_vhci(&(0x7f0000000180)=@HCI_EVENT_PKT={0x4, @hci_ev_conn_request={{0x4, 0xa}, {@any, "546792"}}}, 0xd)
syz_emit_vhci(&(0x7f0000000140)=@HCI_EVENT_PKT={0x4, @hci_ev_sync_conn_complete={{0x2c, 0x11}}}, 0x14)

program crashed: BUG: sleeping function called from invalid context in lock_sock_nested
extracting C reproducer
testing compiled C program (duration=43.162343836s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_sco-bind$bt_sco-listen-syz_emit_vhci-syz_emit_vhci
program did not crash
testing program (duration=43.162343836s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_sco-bind$bt_sco-listen-syz_emit_vhci-syz_emit_vhci
detailed listing:
executing program 0:
r0 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
bind$bt_sco(r0, &(0x7f0000000080), 0x8)
listen(r0, 0x0)
syz_emit_vhci(&(0x7f0000000180)=@HCI_EVENT_PKT={0x4, @hci_ev_conn_request={{0x4, 0xa}, {@any, "546792"}}}, 0xd)
syz_emit_vhci(&(0x7f0000000140)=@HCI_EVENT_PKT={0x4, @hci_ev_sync_conn_complete={{0x2c, 0x11}}}, 0x14)

program crashed: BUG: sleeping function called from invalid context in lock_sock_nested
extracting C reproducer
testing compiled C program (duration=43.162343836s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_sco-bind$bt_sco-listen-syz_emit_vhci-syz_emit_vhci
program did not crash
reproducing took 10m56.240178948s
repro crashed as (corrupted=false):
BUG: sleeping function called from invalid context at net/core/sock.c:3664
in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 67, name: kworker/u33:0
preempt_count: 1, expected: 0
RCU nest depth: 0, expected: 0
6 locks held by kworker/u33:0/67:
 #0: ffff888032b42948 ((wq_completion)hci0#2){+.+.}-{0:0}, at: process_one_work+0x1293/0x1ba0 kernel/workqueue.c:3213
 #1: ffffc90000d4fd18 ((work_completion)(&hdev->rx_work)){+.+.}-{0:0}, at: process_one_work+0x921/0x1ba0 kernel/workqueue.c:3214
 #2: ffff88804d274078 (&hdev->lock){+.+.}-{4:4}, at: hci_sync_conn_complete_evt+0x118/0x9f0 net/bluetooth/hci_event.c:4938
 #3: ffffffff90165948 (hci_cb_list_lock){+.+.}-{4:4}, at: hci_connect_cfm include/net/bluetooth/hci_core.h:2026 [inline]
 #3: ffffffff90165948 (hci_cb_list_lock){+.+.}-{4:4}, at: hci_sync_conn_complete_evt+0x32d/0x9f0 net/bluetooth/hci_event.c:5021
 #4: ffff888024740c20 (&conn->lock#3){+.+.}-{3:3}, at: spin_lock include/linux/spinlock.h:351 [inline]
 #4: ffff888024740c20 (&conn->lock#3){+.+.}-{3:3}, at: sco_conn_ready net/bluetooth/sco.c:1336 [inline]
 #4: ffff888024740c20 (&conn->lock#3){+.+.}-{3:3}, at: sco_connect_cfm+0x2d6/0xd80 net/bluetooth/sco.c:1422
 #5: ffff888033f3a258 (sk_lock-AF_BLUETOOTH-BTPROTO_SCO){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1624 [inline]
 #5: ffff888033f3a258 (sk_lock-AF_BLUETOOTH-BTPROTO_SCO){+.+.}-{0:0}, at: sco_conn_ready net/bluetooth/sco.c:1349 [inline]
 #5: ffff888033f3a258 (sk_lock-AF_BLUETOOTH-BTPROTO_SCO){+.+.}-{0:0}, at: sco_connect_cfm+0x3f3/0xd80 net/bluetooth/sco.c:1422
Preemption disabled at:
[<0000000000000000>] 0x0
CPU: 2 UID: 0 PID: 67 Comm: kworker/u33:0 Not tainted 6.14.0-syzkaller #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Workqueue: hci0 hci_rx_work
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:120
 __might_resched+0x3c0/0x5e0 kernel/sched/core.c:8767
 lock_sock_nested+0x4b/0xf0 net/core/sock.c:3664
 lock_sock include/net/sock.h:1624 [inline]
 sco_conn_ready net/bluetooth/sco.c:1349 [inline]
 sco_connect_cfm+0x3f3/0xd80 net/bluetooth/sco.c:1422
 hci_connect_cfm include/net/bluetooth/hci_core.h:2029 [inline]
 hci_sync_conn_complete_evt+0x398/0x9f0 net/bluetooth/hci_event.c:5021
 hci_event_func net/bluetooth/hci_event.c:7480 [inline]
 hci_event_packet+0x9eb/0x1180 net/bluetooth/hci_event.c:7532
 hci_rx_work+0x2c5/0x16b0 net/bluetooth/hci_core.c:4019
 process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3238
 process_scheduled_works kernel/workqueue.c:3319 [inline]
 worker_thread+0x6c8/0xf00 kernel/workqueue.c:3400
 kthread+0x3af/0x750 kernel/kthread.c:464
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
==================================================================
BUG: KASAN: slab-use-after-free in __lock_acquire+0x2d90/0x3c40 kernel/locking/lockdep.c:5091
Read of size 8 at addr ffff888033f3a1d8 by task kworker/u33:0/67

CPU: 2 UID: 0 PID: 67 Comm: kworker/u33:0 Tainted: G        W          6.14.0-syzkaller #0
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Workqueue: hci0 hci_rx_work
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:408 [inline]
 print_report+0xc3/0x670 mm/kasan/report.c:521
 kasan_report+0xd9/0x110 mm/kasan/report.c:634
 __lock_acquire+0x2d90/0x3c40 kernel/locking/lockdep.c:5091
 lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5851
 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline]
 _raw_spin_lock_bh+0x33/0x40 kernel/locking/spinlock.c:178
 spin_lock_bh include/linux/spinlock.h:356 [inline]
 lock_sock_nested+0x5f/0xf0 net/core/sock.c:3665
 lock_sock include/net/sock.h:1624 [inline]
 sco_conn_ready net/bluetooth/sco.c:1349 [inline]
 sco_connect_cfm+0x3f3/0xd80 net/bluetooth/sco.c:1422
 hci_connect_cfm include/net/bluetooth/hci_core.h:2029 [inline]
 hci_sync_conn_complete_evt+0x398/0x9f0 net/bluetooth/hci_event.c:5021
 hci_event_func net/bluetooth/hci_event.c:7480 [inline]
 hci_event_packet+0x9eb/0x1180 net/bluetooth/hci_event.c:7532
 hci_rx_work+0x2c5/0x16b0 net/bluetooth/hci_core.c:4019
 process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3238
 process_scheduled_works kernel/workqueue.c:3319 [inline]
 worker_thread+0x6c8/0xf00 kernel/workqueue.c:3400
 kthread+0x3af/0x750 kernel/kthread.c:464
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>

Allocated by task 6110:
 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
 kasan_save_track+0x14/0x30 mm/kasan/common.c:68
 poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
 __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:394
 kasan_kmalloc include/linux/kasan.h:260 [inline]
 __do_kmalloc_node mm/slub.c:4294 [inline]
 __kmalloc_noprof+0x21c/0x510 mm/slub.c:4306
 kmalloc_noprof include/linux/slab.h:905 [inline]
 sk_prot_alloc+0x1a8/0x2a0 net/core/sock.c:2181
 sk_alloc+0x36/0xc20 net/core/sock.c:2234
 bt_sock_alloc+0x3b/0x3a0 net/bluetooth/af_bluetooth.c:148
 sco_sock_alloc net/bluetooth/sco.c:560 [inline]
 sco_sock_create+0xe3/0x3c0 net/bluetooth/sco.c:591
 bt_sock_create+0x182/0x350 net/bluetooth/af_bluetooth.c:132
 __sock_create+0x335/0x8d0 net/socket.c:1548
 sock_create net/socket.c:1606 [inline]
 __sys_socket_create net/socket.c:1643 [inline]
 __sys_socket+0x14f/0x260 net/socket.c:1690
 __do_sys_socket net/socket.c:1704 [inline]
 __se_sys_socket net/socket.c:1702 [inline]
 __x64_sys_socket+0x72/0xb0 net/socket.c:1702
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Freed by task 6110:
 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
 kasan_save_track+0x14/0x30 mm/kasan/common.c:68
 kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:576
 poison_slab_object mm/kasan/common.c:247 [inline]
 __kasan_slab_free+0x51/0x70 mm/kasan/common.c:264
 kasan_slab_free include/linux/kasan.h:233 [inline]
 slab_free_hook mm/slub.c:2353 [inline]
 slab_free mm/slub.c:4609 [inline]
 kfree+0x2c4/0x4d0 mm/slub.c:4757
 sk_prot_free net/core/sock.c:2217 [inline]
 __sk_destruct+0x5ef/0x6f0 net/core/sock.c:2312
 sk_destruct+0xc2/0xf0 net/core/sock.c:2340
 __sk_free+0xf4/0x3e0 net/core/sock.c:2351
 sk_free+0x6a/0x90 net/core/sock.c:2362
 sock_put include/net/sock.h:1914 [inline]
 sco_sock_kill net/bluetooth/sco.c:502 [inline]
 sco_sock_kill+0x11a/0x1c0 net/bluetooth/sco.c:492
 sco_sock_release+0x154/0x2d0 net/bluetooth/sco.c:1318
 __sock_release+0xb0/0x270 net/socket.c:647
 sock_close+0x1c/0x30 net/socket.c:1398
 __fput+0x3ff/0xb70 fs/file_table.c:464
 task_work_run+0x14e/0x250 kernel/task_work.c:227
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x27b/0x2a0 kernel/entry/common.c:218
 do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The buggy address belongs to the object at ffff888033f3a000
 which belongs to the cache kmalloc-2k of size 2048
The buggy address is located 472 bytes inside of
 freed 2048-byte region [ffff888033f3a000, ffff888033f3a800)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x33f38
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88801b042f00 dead000000000122 0000000000000000
raw: 0000000000000000 0000000080080008 00000000f5000000 0000000000000000
head: 00fff00000000040 ffff88801b042f00 dead000000000122 0000000000000000
head: 0000000000000000 0000000080080008 00000000f5000000 0000000000000000
head: 00fff00000000003 ffffea0000cfce01 ffffffffffffffff 0000000000000000
head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd2820(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 6010, tgid 6010 (kworker/2:3), ts 73860909100, free_ts 73796033508
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x181/0x1b0 mm/page_alloc.c:1551
 prep_new_page mm/page_alloc.c:1559 [inline]
 get_page_from_freelist+0xfce/0x2f80 mm/page_alloc.c:3477
 __alloc_frozen_pages_noprof+0x221/0x2470 mm/page_alloc.c:4740
 alloc_pages_mpol+0x1fc/0x540 mm/mempolicy.c:2270
 alloc_slab_page mm/slub.c:2423 [inline]
 allocate_slab mm/slub.c:2587 [inline]
 new_slab+0x23d/0x330 mm/slub.c:2640
 ___slab_alloc+0xc5d/0x1720 mm/slub.c:3826
 __slab_alloc.constprop.0+0x56/0xb0 mm/slub.c:3916
 __slab_alloc_node mm/slub.c:3991 [inline]
 slab_alloc_node mm/slub.c:4152 [inline]
 __do_kmalloc_node mm/slub.c:4293 [inline]
 __kmalloc_node_track_caller_noprof+0x2f1/0x510 mm/slub.c:4313
 kmalloc_reserve+0xef/0x2c0 net/core/skbuff.c:537
 __alloc_skb+0x164/0x380 net/core/skbuff.c:606
 skb_copy+0x1c9/0x3a0 net/core/skbuff.c:2069
 mac80211_hwsim_tx_frame_no_nl.isra.0+0xb7f/0x12f0 drivers/net/wireless/virtual/mac80211_hwsim.c:1866
 mac80211_hwsim_tx+0x7a2/0x25b0 drivers/net/wireless/virtual/mac80211_hwsim.c:2084
 drv_tx net/mac80211/driver-ops.h:37 [inline]
 wake_tx_push_queue net/mac80211/util.c:298 [inline]
 ieee80211_handle_wake_tx_queue+0x18a/0x260 net/mac80211/util.c:315
 drv_wake_tx_queue net/mac80211/driver-ops.h:1366 [inline]
 schedule_and_wake_txq net/mac80211/driver-ops.h:1373 [inline]
 ieee80211_queue_skb+0x12b5/0x2010 net/mac80211/tx.c:1664
 ieee80211_tx+0x2e6/0x420 net/mac80211/tx.c:1967
page last free pid 6060 tgid 6060 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1127 [inline]
 free_frozen_pages+0x6db/0xfb0 mm/page_alloc.c:2660
 __put_partials+0x14c/0x170 mm/slub.c:3153
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x4e/0x120 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x195/0x1e0 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:329
 kasan_slab_alloc include/linux/kasan.h:250 [inline]
 slab_post_alloc_hook mm/slub.c:4115 [inline]
 slab_alloc_node mm/slub.c:4164 [inline]
 kmem_cache_alloc_noprof+0x226/0x3d0 mm/slub.c:4171
 __kernfs_new_node+0xd3/0x890 fs/kernfs/dir.c:624
 kernfs_new_node+0x186/0x240 fs/kernfs/dir.c:700
 __kernfs_create_file+0x53/0x350 fs/kernfs/file.c:1034
 sysfs_add_file_mode_ns+0x1ff/0x3b0 fs/sysfs/file.c:313
 create_files fs/sysfs/group.c:76 [inline]
 internal_create_group+0x56c/0xf10 fs/sysfs/group.c:183
 internal_create_groups+0x9d/0x150 fs/sysfs/group.c:223
 device_add_groups drivers/base/core.c:2813 [inline]
 device_add_attrs drivers/base/core.c:2877 [inline]
 device_add+0x6d3/0x1a70 drivers/base/core.c:3620
 netdev_register_kobject+0x183/0x3a0 net/core/net-sysfs.c:2170
 register_netdevice+0x147b/0x1eb0 net/core/dev.c:10946
 cfg80211_register_netdevice+0x149/0x340 net/wireless/core.c:1489

Memory state around the buggy address:
 ffff888033f3a080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888033f3a100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff888033f3a180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                                    ^
 ffff888033f3a200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888033f3a280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================

final repro crashed as (corrupted=false):
BUG: sleeping function called from invalid context at net/core/sock.c:3664
in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 67, name: kworker/u33:0
preempt_count: 1, expected: 0
RCU nest depth: 0, expected: 0
6 locks held by kworker/u33:0/67:
 #0: ffff888032b42948 ((wq_completion)hci0#2){+.+.}-{0:0}, at: process_one_work+0x1293/0x1ba0 kernel/workqueue.c:3213
 #1: ffffc90000d4fd18 ((work_completion)(&hdev->rx_work)){+.+.}-{0:0}, at: process_one_work+0x921/0x1ba0 kernel/workqueue.c:3214
 #2: ffff88804d274078 (&hdev->lock){+.+.}-{4:4}, at: hci_sync_conn_complete_evt+0x118/0x9f0 net/bluetooth/hci_event.c:4938
 #3: ffffffff90165948 (hci_cb_list_lock){+.+.}-{4:4}, at: hci_connect_cfm include/net/bluetooth/hci_core.h:2026 [inline]
 #3: ffffffff90165948 (hci_cb_list_lock){+.+.}-{4:4}, at: hci_sync_conn_complete_evt+0x32d/0x9f0 net/bluetooth/hci_event.c:5021
 #4: ffff888024740c20 (&conn->lock#3){+.+.}-{3:3}, at: spin_lock include/linux/spinlock.h:351 [inline]
 #4: ffff888024740c20 (&conn->lock#3){+.+.}-{3:3}, at: sco_conn_ready net/bluetooth/sco.c:1336 [inline]
 #4: ffff888024740c20 (&conn->lock#3){+.+.}-{3:3}, at: sco_connect_cfm+0x2d6/0xd80 net/bluetooth/sco.c:1422
 #5: ffff888033f3a258 (sk_lock-AF_BLUETOOTH-BTPROTO_SCO){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1624 [inline]
 #5: ffff888033f3a258 (sk_lock-AF_BLUETOOTH-BTPROTO_SCO){+.+.}-{0:0}, at: sco_conn_ready net/bluetooth/sco.c:1349 [inline]
 #5: ffff888033f3a258 (sk_lock-AF_BLUETOOTH-BTPROTO_SCO){+.+.}-{0:0}, at: sco_connect_cfm+0x3f3/0xd80 net/bluetooth/sco.c:1422
Preemption disabled at:
[<0000000000000000>] 0x0
CPU: 2 UID: 0 PID: 67 Comm: kworker/u33:0 Not tainted 6.14.0-syzkaller #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Workqueue: hci0 hci_rx_work
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:120
 __might_resched+0x3c0/0x5e0 kernel/sched/core.c:8767
 lock_sock_nested+0x4b/0xf0 net/core/sock.c:3664
 lock_sock include/net/sock.h:1624 [inline]
 sco_conn_ready net/bluetooth/sco.c:1349 [inline]
 sco_connect_cfm+0x3f3/0xd80 net/bluetooth/sco.c:1422
 hci_connect_cfm include/net/bluetooth/hci_core.h:2029 [inline]
 hci_sync_conn_complete_evt+0x398/0x9f0 net/bluetooth/hci_event.c:5021
 hci_event_func net/bluetooth/hci_event.c:7480 [inline]
 hci_event_packet+0x9eb/0x1180 net/bluetooth/hci_event.c:7532
 hci_rx_work+0x2c5/0x16b0 net/bluetooth/hci_core.c:4019
 process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3238
 process_scheduled_works kernel/workqueue.c:3319 [inline]
 worker_thread+0x6c8/0xf00 kernel/workqueue.c:3400
 kthread+0x3af/0x750 kernel/kthread.c:464
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
==================================================================
BUG: KASAN: slab-use-after-free in __lock_acquire+0x2d90/0x3c40 kernel/locking/lockdep.c:5091
Read of size 8 at addr ffff888033f3a1d8 by task kworker/u33:0/67

CPU: 2 UID: 0 PID: 67 Comm: kworker/u33:0 Tainted: G        W          6.14.0-syzkaller #0
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Workqueue: hci0 hci_rx_work
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:408 [inline]
 print_report+0xc3/0x670 mm/kasan/report.c:521
 kasan_report+0xd9/0x110 mm/kasan/report.c:634
 __lock_acquire+0x2d90/0x3c40 kernel/locking/lockdep.c:5091
 lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5851
 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline]
 _raw_spin_lock_bh+0x33/0x40 kernel/locking/spinlock.c:178
 spin_lock_bh include/linux/spinlock.h:356 [inline]
 lock_sock_nested+0x5f/0xf0 net/core/sock.c:3665
 lock_sock include/net/sock.h:1624 [inline]
 sco_conn_ready net/bluetooth/sco.c:1349 [inline]
 sco_connect_cfm+0x3f3/0xd80 net/bluetooth/sco.c:1422
 hci_connect_cfm include/net/bluetooth/hci_core.h:2029 [inline]
 hci_sync_conn_complete_evt+0x398/0x9f0 net/bluetooth/hci_event.c:5021
 hci_event_func net/bluetooth/hci_event.c:7480 [inline]
 hci_event_packet+0x9eb/0x1180 net/bluetooth/hci_event.c:7532
 hci_rx_work+0x2c5/0x16b0 net/bluetooth/hci_core.c:4019
 process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3238
 process_scheduled_works kernel/workqueue.c:3319 [inline]
 worker_thread+0x6c8/0xf00 kernel/workqueue.c:3400
 kthread+0x3af/0x750 kernel/kthread.c:464
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>

Allocated by task 6110:
 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
 kasan_save_track+0x14/0x30 mm/kasan/common.c:68
 poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
 __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:394
 kasan_kmalloc include/linux/kasan.h:260 [inline]
 __do_kmalloc_node mm/slub.c:4294 [inline]
 __kmalloc_noprof+0x21c/0x510 mm/slub.c:4306
 kmalloc_noprof include/linux/slab.h:905 [inline]
 sk_prot_alloc+0x1a8/0x2a0 net/core/sock.c:2181
 sk_alloc+0x36/0xc20 net/core/sock.c:2234
 bt_sock_alloc+0x3b/0x3a0 net/bluetooth/af_bluetooth.c:148
 sco_sock_alloc net/bluetooth/sco.c:560 [inline]
 sco_sock_create+0xe3/0x3c0 net/bluetooth/sco.c:591
 bt_sock_create+0x182/0x350 net/bluetooth/af_bluetooth.c:132
 __sock_create+0x335/0x8d0 net/socket.c:1548
 sock_create net/socket.c:1606 [inline]
 __sys_socket_create net/socket.c:1643 [inline]
 __sys_socket+0x14f/0x260 net/socket.c:1690
 __do_sys_socket net/socket.c:1704 [inline]
 __se_sys_socket net/socket.c:1702 [inline]
 __x64_sys_socket+0x72/0xb0 net/socket.c:1702
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Freed by task 6110:
 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
 kasan_save_track+0x14/0x30 mm/kasan/common.c:68
 kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:576
 poison_slab_object mm/kasan/common.c:247 [inline]
 __kasan_slab_free+0x51/0x70 mm/kasan/common.c:264
 kasan_slab_free include/linux/kasan.h:233 [inline]
 slab_free_hook mm/slub.c:2353 [inline]
 slab_free mm/slub.c:4609 [inline]
 kfree+0x2c4/0x4d0 mm/slub.c:4757
 sk_prot_free net/core/sock.c:2217 [inline]
 __sk_destruct+0x5ef/0x6f0 net/core/sock.c:2312
 sk_destruct+0xc2/0xf0 net/core/sock.c:2340
 __sk_free+0xf4/0x3e0 net/core/sock.c:2351
 sk_free+0x6a/0x90 net/core/sock.c:2362
 sock_put include/net/sock.h:1914 [inline]
 sco_sock_kill net/bluetooth/sco.c:502 [inline]
 sco_sock_kill+0x11a/0x1c0 net/bluetooth/sco.c:492
 sco_sock_release+0x154/0x2d0 net/bluetooth/sco.c:1318
 __sock_release+0xb0/0x270 net/socket.c:647
 sock_close+0x1c/0x30 net/socket.c:1398
 __fput+0x3ff/0xb70 fs/file_table.c:464
 task_work_run+0x14e/0x250 kernel/task_work.c:227
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x27b/0x2a0 kernel/entry/common.c:218
 do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The buggy address belongs to the object at ffff888033f3a000
 which belongs to the cache kmalloc-2k of size 2048
The buggy address is located 472 bytes inside of
 freed 2048-byte region [ffff888033f3a000, ffff888033f3a800)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x33f38
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88801b042f00 dead000000000122 0000000000000000
raw: 0000000000000000 0000000080080008 00000000f5000000 0000000000000000
head: 00fff00000000040 ffff88801b042f00 dead000000000122 0000000000000000
head: 0000000000000000 0000000080080008 00000000f5000000 0000000000000000
head: 00fff00000000003 ffffea0000cfce01 ffffffffffffffff 0000000000000000
head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd2820(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 6010, tgid 6010 (kworker/2:3), ts 73860909100, free_ts 73796033508
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x181/0x1b0 mm/page_alloc.c:1551
 prep_new_page mm/page_alloc.c:1559 [inline]
 get_page_from_freelist+0xfce/0x2f80 mm/page_alloc.c:3477
 __alloc_frozen_pages_noprof+0x221/0x2470 mm/page_alloc.c:4740
 alloc_pages_mpol+0x1fc/0x540 mm/mempolicy.c:2270
 alloc_slab_page mm/slub.c:2423 [inline]
 allocate_slab mm/slub.c:2587 [inline]
 new_slab+0x23d/0x330 mm/slub.c:2640
 ___slab_alloc+0xc5d/0x1720 mm/slub.c:3826
 __slab_alloc.constprop.0+0x56/0xb0 mm/slub.c:3916
 __slab_alloc_node mm/slub.c:3991 [inline]
 slab_alloc_node mm/slub.c:4152 [inline]
 __do_kmalloc_node mm/slub.c:4293 [inline]
 __kmalloc_node_track_caller_noprof+0x2f1/0x510 mm/slub.c:4313
 kmalloc_reserve+0xef/0x2c0 net/core/skbuff.c:537
 __alloc_skb+0x164/0x380 net/core/skbuff.c:606
 skb_copy+0x1c9/0x3a0 net/core/skbuff.c:2069
 mac80211_hwsim_tx_frame_no_nl.isra.0+0xb7f/0x12f0 drivers/net/wireless/virtual/mac80211_hwsim.c:1866
 mac80211_hwsim_tx+0x7a2/0x25b0 drivers/net/wireless/virtual/mac80211_hwsim.c:2084
 drv_tx net/mac80211/driver-ops.h:37 [inline]
 wake_tx_push_queue net/mac80211/util.c:298 [inline]
 ieee80211_handle_wake_tx_queue+0x18a/0x260 net/mac80211/util.c:315
 drv_wake_tx_queue net/mac80211/driver-ops.h:1366 [inline]
 schedule_and_wake_txq net/mac80211/driver-ops.h:1373 [inline]
 ieee80211_queue_skb+0x12b5/0x2010 net/mac80211/tx.c:1664
 ieee80211_tx+0x2e6/0x420 net/mac80211/tx.c:1967
page last free pid 6060 tgid 6060 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1127 [inline]
 free_frozen_pages+0x6db/0xfb0 mm/page_alloc.c:2660
 __put_partials+0x14c/0x170 mm/slub.c:3153
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x4e/0x120 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x195/0x1e0 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:329
 kasan_slab_alloc include/linux/kasan.h:250 [inline]
 slab_post_alloc_hook mm/slub.c:4115 [inline]
 slab_alloc_node mm/slub.c:4164 [inline]
 kmem_cache_alloc_noprof+0x226/0x3d0 mm/slub.c:4171
 __kernfs_new_node+0xd3/0x890 fs/kernfs/dir.c:624
 kernfs_new_node+0x186/0x240 fs/kernfs/dir.c:700
 __kernfs_create_file+0x53/0x350 fs/kernfs/file.c:1034
 sysfs_add_file_mode_ns+0x1ff/0x3b0 fs/sysfs/file.c:313
 create_files fs/sysfs/group.c:76 [inline]
 internal_create_group+0x56c/0xf10 fs/sysfs/group.c:183
 internal_create_groups+0x9d/0x150 fs/sysfs/group.c:223
 device_add_groups drivers/base/core.c:2813 [inline]
 device_add_attrs drivers/base/core.c:2877 [inline]
 device_add+0x6d3/0x1a70 drivers/base/core.c:3620
 netdev_register_kobject+0x183/0x3a0 net/core/net-sysfs.c:2170
 register_netdevice+0x147b/0x1eb0 net/core/dev.c:10946
 cfg80211_register_netdevice+0x149/0x340 net/wireless/core.c:1489

Memory state around the buggy address:
 ffff888033f3a080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888033f3a100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff888033f3a180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                                    ^
 ffff888033f3a200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888033f3a280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================