==================================================================
BUG: KASAN: use-after-free in pn533_send_complete.cold+0x47/0x6c drivers/nfc/pn533/usb.c:430
Read of size 8 at addr ffff8881cd7ea5a8 by task syz-fuzzer/1725

CPU: 0 PID: 1725 Comm: syz-fuzzer Not tainted 5.4.0-rc1+ #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0xca/0x13e lib/dump_stack.c:113
 print_address_description.constprop.0+0x36/0x50 mm/kasan/report.c:374
 __kasan_report.cold+0x1a/0x33 mm/kasan/report.c:506
 kasan_report+0xe/0x20 mm/kasan/common.c:634
 pn533_send_complete.cold+0x47/0x6c drivers/nfc/pn533/usb.c:430
 __usb_hcd_giveback_urb+0x1f2/0x470 drivers/usb/core/hcd.c:1654
 usb_hcd_giveback_urb+0x368/0x420 drivers/usb/core/hcd.c:1719
 dummy_timer+0x120f/0x2fa2 drivers/usb/gadget/udc/dummy_hcd.c:1965
 call_timer_fn+0x179/0x650 kernel/time/timer.c:1404
 expire_timers kernel/time/timer.c:1449 [inline]
 __run_timers kernel/time/timer.c:1773 [inline]
 __run_timers kernel/time/timer.c:1740 [inline]
 run_timer_softirq+0x5e3/0x1490 kernel/time/timer.c:1786
 __do_softirq+0x221/0x912 kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:373 [inline]
 irq_exit+0x178/0x1a0 kernel/softirq.c:413
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x12f/0x500 arch/x86/kernel/apic/apic.c:1137
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:830
 </IRQ>
RIP: 0033:0x40ad97
Code: e8 1e c0 ff ff 4c 8b 54 24 18 48 8b 44 24 20 48 8b 5c 24 50 48 8b 74 24 48 45 31 c0 eb a2 49 89 ca 31 d2 89 f9 e9 18 ff ff ff <49> 89 ca eb 8c 48 89 54 24 28 48 8b 44 24 48 48 89 04 24 48 89 5c
RSP: 002b:000000c42655b6d8 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff13
RAX: 057959dd47756ae5 RBX: 000000c4264f2d20 RCX: 000000c42130d218
RDX: 000000c4214e2000 RSI: 00000000008620e0 RDI: 0000000000000038
RBP: 000000c42655b710 R08: 0000000000000003 R09: 000000c42130d218
R10: 0000000000000000 R11: 000000000af835db R12: 0000000000000001
R13: 0000000000000020 R14: 0000000000000003 R15: 0000000000000001

Allocated by task 3191:
 save_stack+0x1b/0x80 mm/kasan/common.c:69
 set_track mm/kasan/common.c:77 [inline]
 __kasan_kmalloc mm/kasan/common.c:510 [inline]
 __kasan_kmalloc.constprop.0+0xbf/0xd0 mm/kasan/common.c:483
 slab_post_alloc_hook mm/slab.h:584 [inline]
 slab_alloc_node mm/slub.c:2772 [inline]
 __kmalloc_node_track_caller+0xfc/0x3d0 mm/slub.c:4367
 alloc_dr drivers/base/devres.c:103 [inline]
 devm_kmalloc+0x87/0x190 drivers/base/devres.c:815
 devm_kzalloc include/linux/device.h:919 [inline]
 pn533_usb_probe+0x3b/0xd75 drivers/nfc/pn533/usb.c:461
 usb_probe_interface+0x305/0x7a0 drivers/usb/core/driver.c:361
 really_probe+0x281/0x6d0 drivers/base/dd.c:548
 driver_probe_device+0x104/0x210 drivers/base/dd.c:721
 __device_attach_driver+0x1c2/0x220 drivers/base/dd.c:828
 bus_for_each_drv+0x162/0x1e0 drivers/base/bus.c:430
 __device_attach+0x217/0x360 drivers/base/dd.c:894
 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:490
 device_add+0xae6/0x16f0 drivers/base/core.c:2201
 usb_set_configuration+0xdf6/0x1670 drivers/usb/core/message.c:2023
 generic_probe+0x9d/0xd5 drivers/usb/core/generic.c:210
 usb_probe_device+0x99/0x100 drivers/usb/core/driver.c:266
 really_probe+0x281/0x6d0 drivers/base/dd.c:548
 driver_probe_device+0x104/0x210 drivers/base/dd.c:721
 __device_attach_driver+0x1c2/0x220 drivers/base/dd.c:828
 bus_for_each_drv+0x162/0x1e0 drivers/base/bus.c:430
 __device_attach+0x217/0x360 drivers/base/dd.c:894
 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:490
 device_add+0xae6/0x16f0 drivers/base/core.c:2201
 usb_new_device.cold+0x6a4/0xe79 drivers/usb/core/hub.c:2536
 hub_port_connect drivers/usb/core/hub.c:5098 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5213 [inline]
 port_event drivers/usb/core/hub.c:5359 [inline]
 hub_event+0x1b5c/0x3640 drivers/usb/core/hub.c:5441
 process_one_work+0x92b/0x1530 kernel/workqueue.c:2269
 worker_thread+0x96/0xe20 kernel/workqueue.c:2415
 kthread+0x318/0x420 kernel/kthread.c:255
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352

Freed by task 3191:
 save_stack+0x1b/0x80 mm/kasan/common.c:69
 set_track mm/kasan/common.c:77 [inline]
 kasan_set_free_info mm/kasan/common.c:332 [inline]
 __kasan_slab_free+0x130/0x180 mm/kasan/common.c:471
 slab_free_hook mm/slub.c:1424 [inline]
 slab_free_freelist_hook mm/slub.c:1475 [inline]
 slab_free mm/slub.c:3018 [inline]
 kfree+0xe4/0x2f0 mm/slub.c:3959
 release_nodes+0x4a1/0x910 drivers/base/devres.c:508
 devres_release_all+0x74/0xc3 drivers/base/devres.c:529
 really_probe+0x42f/0x6d0 drivers/base/dd.c:605
 driver_probe_device+0x104/0x210 drivers/base/dd.c:721
 __device_attach_driver+0x1c2/0x220 drivers/base/dd.c:828
 bus_for_each_drv+0x162/0x1e0 drivers/base/bus.c:430
 __device_attach+0x217/0x360 drivers/base/dd.c:894
 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:490
 device_add+0xae6/0x16f0 drivers/base/core.c:2201
 usb_set_configuration+0xdf6/0x1670 drivers/usb/core/message.c:2023
 generic_probe+0x9d/0xd5 drivers/usb/core/generic.c:210
 usb_probe_device+0x99/0x100 drivers/usb/core/driver.c:266
 really_probe+0x281/0x6d0 drivers/base/dd.c:548
 driver_probe_device+0x104/0x210 drivers/base/dd.c:721
 __device_attach_driver+0x1c2/0x220 drivers/base/dd.c:828
 bus_for_each_drv+0x162/0x1e0 drivers/base/bus.c:430
 __device_attach+0x217/0x360 drivers/base/dd.c:894
 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:490
 device_add+0xae6/0x16f0 drivers/base/core.c:2201
 usb_new_device.cold+0x6a4/0xe79 drivers/usb/core/hub.c:2536
 hub_port_connect drivers/usb/core/hub.c:5098 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5213 [inline]
 port_event drivers/usb/core/hub.c:5359 [inline]
 hub_event+0x1b5c/0x3640 drivers/usb/core/hub.c:5441
 process_one_work+0x92b/0x1530 kernel/workqueue.c:2269
 worker_thread+0x96/0xe20 kernel/workqueue.c:2415
 kthread+0x318/0x420 kernel/kthread.c:255
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352

The buggy address belongs to the object at ffff8881cd7ea580
 which belongs to the cache kmalloc-96 of size 96
The buggy address is located 40 bytes inside of
 96-byte region [ffff8881cd7ea580, ffff8881cd7ea5e0)
The buggy address belongs to the page:
page:ffffea000735fa80 refcount:1 mapcount:0 mapping:ffff8881da002f00 index:0x0
flags: 0x200000000000200(slab)
raw: 0200000000000200 ffffea000737ccc0 0000000200000002 ffff8881da002f00
raw: 0000000000000000 0000000000200020 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8881cd7ea480: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
 ffff8881cd7ea500: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
>ffff8881cd7ea580: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
                                  ^
 ffff8881cd7ea600: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc
 ffff8881cd7ea680: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
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