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xpad 5-1:179.65: xpad_irq_in - usb_submit_urb failed with result -19
xpad 5-1:179.65: xpad_irq_out - usb_submit_urb failed with result -19
==================================================================
BUG: KASAN: use-after-free in register_lock_class+0x7dd/0x870 kernel/locking/lockdep.c:1331
Read of size 1 at addr ffff888057535891 by task syz.3.466/5476

CPU: 1 PID: 5476 Comm: syz.3.466 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
 <IRQ>
 dump_stack_lvl+0x188/0x24e lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:316 [inline]
 print_report+0xa8/0x210 mm/kasan/report.c:420
 kasan_report+0x10b/0x140 mm/kasan/report.c:524
 register_lock_class+0x7dd/0x870 kernel/locking/lockdep.c:1331
 __lock_acquire+0x16f/0x7d10 kernel/locking/lockdep.c:4928
 lock_acquire+0x1bb/0x4a0 kernel/locking/lockdep.c:5662
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0xb0/0x100 kernel/locking/spinlock.c:162
 __wake_up_common_lock kernel/sched/wait.c:137 [inline]
 __wake_up+0x107/0x1a0 kernel/sched/wait.c:160
 __usb_hcd_giveback_urb+0x396/0x520 drivers/usb/core/hcd.c:1678
 dummy_timer+0x8d0/0x3330 drivers/usb/gadget/udc/dummy_hcd.c:2004
 __run_hrtimer kernel/time/hrtimer.c:1751 [inline]
 __hrtimer_run_queues+0x54a/0xd50 kernel/time/hrtimer.c:1815
 hrtimer_run_softirq+0x183/0x2a0 kernel/time/hrtimer.c:1832
 handle_softirqs+0x2a1/0x930 kernel/softirq.c:596
 __do_softirq kernel/softirq.c:630 [inline]
 invoke_softirq kernel/softirq.c:470 [inline]
 __irq_exit_rcu+0x13b/0x230 kernel/softirq.c:679
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:691
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
 sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1118
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:160 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x25/0x40 kernel/locking/spinlock.c:202
Code: 00 00 00 66 90 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 8e 52 2b f7 48 89 df e8 d6 1a 2c f7 e8 21 75 4f f7 fb bf 01 00 00 00 <e8> 26 7f 1f f7 65 8b 05 f7 fe c8 75 85 c0 74 02 5b c3 e8 44 13 c7
RSP: 0018:ffffc900045877d0 EFLAGS: 00000286
RAX: 1b89a0593fd49300 RBX: ffff88807c52e870 RCX: 1b89a0593fd49300
RDX: dffffc0000000000 RSI: ffffffff8a8c1aa0 RDI: 0000000000000001
RBP: ffffc90004587960 R08: ffffffff90aff2e7 R09: 1ffffffff215fe5c
R10: dffffc0000000000 R11: fffffbfff215fe5d R12: ffffea0001c4e388
R13: 00000003fffffffc R14: 0000000000000cc0 R15: dffffc0000000000
 spin_unlock_irq include/linux/spinlock.h:401 [inline]
 shmem_add_to_page_cache+0xa91/0x1c50 mm/shmem.c:740
 shmem_get_folio_gfp+0x158e/0x3400 mm/shmem.c:1971
 shmem_get_folio mm/shmem.c:2072 [inline]
 shmem_write_begin+0xee/0x3f0 mm/shmem.c:2556
 generic_perform_write+0x2fa/0x5c0 mm/filemap.c:3862
 __generic_file_write_iter+0x148/0x2a0 mm/filemap.c:3960
 generic_file_write_iter+0xab/0x2e0 mm/filemap.c:3989
 call_write_iter include/linux/fs.h:2265 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x4b1/0xa30 fs/read_write.c:584
 ksys_write+0x14c/0x250 fs/read_write.c:637
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fdd13b5d68e
Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
RSP: 002b:00007fdd14a7bda8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fdd14a7c6c0 RCX: 00007fdd13b5d68e
RDX: 0000000001000000 RSI: 00007fdd099f7000 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
R13: 00007fdd14a7bee0 R14: 00007fdd14a7bea0 R15: 00007fdd099f7000
 </TASK>

Allocated by task 22:
 kasan_save_stack mm/kasan/common.c:46 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:53
 ____kasan_kmalloc mm/kasan/common.c:375 [inline]
 __kasan_kmalloc+0x8e/0xa0 mm/kasan/common.c:384
 kmalloc include/linux/slab.h:563 [inline]
 kzalloc include/linux/slab.h:699 [inline]
 xpad_probe+0x41d/0x1d30 drivers/input/joystick/xpad.c:1971
 usb_probe_interface+0x5c5/0xb20 drivers/usb/core/driver.c:396
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x2aa/0xc70 drivers/base/dd.c:639
 __driver_probe_device+0x1ef/0x390 drivers/base/dd.c:805
 driver_probe_device+0x4f/0x420 drivers/base/dd.c:835
 __device_attach_driver+0x2c6/0x510 drivers/base/dd.c:963
 bus_for_each_drv+0x184/0x210 drivers/base/bus.c:429
 __device_attach+0x2a8/0x480 drivers/base/dd.c:1035
 bus_probe_device+0xbc/0x1e0 drivers/base/bus.c:489
 device_add+0xa3a/0x1000 drivers/base/core.c:3712
 usb_set_configuration+0x1991/0x1fd0 drivers/usb/core/message.c:2223
 usb_generic_driver_probe+0x89/0x150 drivers/usb/core/generic.c:238
 usb_probe_device+0x139/0x270 drivers/usb/core/driver.c:293
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x2aa/0xc70 drivers/base/dd.c:639
 __driver_probe_device+0x1ef/0x390 drivers/base/dd.c:805
 driver_probe_device+0x4f/0x420 drivers/base/dd.c:835
 __device_attach_driver+0x2c6/0x510 drivers/base/dd.c:963
 bus_for_each_drv+0x184/0x210 drivers/base/bus.c:429
 __device_attach+0x2a8/0x480 drivers/base/dd.c:1035
 bus_probe_device+0xbc/0x1e0 drivers/base/bus.c:489
 device_add+0xa3a/0x1000 drivers/base/core.c:3712
 usb_new_device+0xd66/0x1650 drivers/usb/core/hub.c:2659
 hub_port_connect drivers/usb/core/hub.c:5517 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5657 [inline]
 port_event drivers/usb/core/hub.c:5817 [inline]
 hub_event+0x2dcf/0x5560 drivers/usb/core/hub.c:5899
 process_one_work+0x8a2/0x1160 kernel/workqueue.c:2292
 worker_thread+0xaa2/0x1270 kernel/workqueue.c:2439
 kthread+0x29d/0x330 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295

Freed by task 4334:
 kasan_save_stack mm/kasan/common.c:46 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:53
 kasan_save_free_info+0x2d/0x50 mm/kasan/generic.c:516
 ____kasan_slab_free+0x126/0x1e0 mm/kasan/common.c:237
 kasan_slab_free include/linux/kasan.h:177 [inline]
 slab_free_hook mm/slub.c:1729 [inline]
 slab_free_freelist_hook+0x131/0x1a0 mm/slub.c:1755
 slab_free mm/slub.c:3687 [inline]
 __kmem_cache_free+0xb6/0x1f0 mm/slub.c:3700
 xpad_disconnect+0x34c/0x470 drivers/input/joystick/xpad.c:2152
 usb_unbind_interface+0x1ee/0x860 drivers/usb/core/driver.c:458
 device_remove drivers/base/dd.c:550 [inline]
 __device_release_driver drivers/base/dd.c:1280 [inline]
 device_release_driver_internal+0x522/0x850 drivers/base/dd.c:1306
 bus_remove_device+0x2e2/0x400 drivers/base/bus.c:531
 device_del+0x6af/0xaf0 drivers/base/core.c:3900
 usb_disable_device+0x3e2/0x890 drivers/usb/core/message.c:1472
 usb_disconnect+0x348/0x8a0 drivers/usb/core/hub.c:2314
 hub_port_connect drivers/usb/core/hub.c:5361 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5657 [inline]
 port_event drivers/usb/core/hub.c:5817 [inline]
 hub_event+0x1e50/0x5560 drivers/usb/core/hub.c:5899
 process_one_work+0x8a2/0x1160 kernel/workqueue.c:2292
 worker_thread+0xaa2/0x1270 kernel/workqueue.c:2439
 kthread+0x29d/0x330 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295

The buggy address belongs to the object at ffff888057535800
 which belongs to the cache kmalloc-1k of size 1024
The buggy address is located 145 bytes inside of
 1024-byte region [ffff888057535800, ffff888057535c00)

The buggy address belongs to the physical page:
page:ffffea00015d4c00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x57530
head:ffffea00015d4c00 order:3 compound_mapcount:0 compound_pincount:0
flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000010200 ffffea00015d0800 dead000000000002 ffff888017441dc0
raw: 0000000000000000 0000000080100010 00000001ffffffff 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 0x52a20(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP), pid 4314, tgid 4314 (kworker/0:5), ts 75225499595, free_ts 21058355510
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x173/0x1a0 mm/page_alloc.c:2559
 prep_new_page mm/page_alloc.c:2566 [inline]
 get_page_from_freelist+0x1a1e/0x1ab0 mm/page_alloc.c:4357
 __alloc_pages+0x1ec/0x4f0 mm/page_alloc.c:5657
 alloc_slab_page+0x5d/0x160 mm/slub.c:1799
 allocate_slab mm/slub.c:1944 [inline]
 new_slab+0x87/0x2c0 mm/slub.c:1997
 ___slab_alloc+0xbc6/0x1240 mm/slub.c:3154
 __slab_alloc mm/slub.c:3240 [inline]
 slab_alloc_node mm/slub.c:3325 [inline]
 __kmem_cache_alloc_node+0x1a0/0x260 mm/slub.c:3398
 __do_kmalloc_node mm/slab_common.c:935 [inline]
 __kmalloc+0xa0/0x240 mm/slab_common.c:949
 kmalloc include/linux/slab.h:568 [inline]
 kzalloc include/linux/slab.h:699 [inline]
 neigh_alloc net/core/neighbour.c:495 [inline]
 ___neigh_create+0x6ce/0x24c0 net/core/neighbour.c:649
 ip6_finish_output2+0x1525/0x15d0 net/ipv6/ip6_output.c:129
 dst_output include/net/dst.h:453 [inline]
 NF_HOOK+0x161/0x4a0 include/linux/netfilter.h:302
 mld_sendpack+0x83b/0xdc0 net/ipv6/mcast.c:1825
 mld_send_cr net/ipv6/mcast.c:2126 [inline]
 mld_ifc_work+0x836/0xb40 net/ipv6/mcast.c:2658
 process_one_work+0x8a2/0x1160 kernel/workqueue.c:2292
 worker_thread+0xaa2/0x1270 kernel/workqueue.c:2439
 kthread+0x29d/0x330 kernel/kthread.c:376
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1486 [inline]
 free_pcp_prepare mm/page_alloc.c:1536 [inline]
 free_unref_page_prepare+0x8b4/0x9a0 mm/page_alloc.c:3413
 free_unref_page+0x2e/0x3f0 mm/page_alloc.c:3508
 free_contig_range+0x9d/0x150 mm/page_alloc.c:9625
 destroy_args+0xf0/0xa0a mm/debug_vm_pgtable.c:1031
 debug_vm_pgtable+0x33c/0x38e mm/debug_vm_pgtable.c:1359
 do_one_initcall+0x26a/0x840 init/main.c:1309
 do_initcall_level+0x137/0x1e4 init/main.c:1382
 do_initcalls+0x4b/0x8a init/main.c:1398
 kernel_init_freeable+0x415/0x5be init/main.c:1637
 kernel_init+0x19/0x1b0 init/main.c:1525
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295

Memory state around the buggy address:
 ffff888057535780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff888057535800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff888057535880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                         ^
 ffff888057535900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888057535980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
----------------
Code disassembly (best guess):
   0:	00 00                	add    %al,(%rax)
   2:	00 66 90             	add    %ah,-0x70(%rsi)
   5:	53                   	push   %rbx
   6:	48 89 fb             	mov    %rdi,%rbx
   9:	48 83 c7 18          	add    $0x18,%rdi
   d:	48 8b 74 24 08       	mov    0x8(%rsp),%rsi
  12:	e8 8e 52 2b f7       	call   0xf72b52a5
  17:	48 89 df             	mov    %rbx,%rdi
  1a:	e8 d6 1a 2c f7       	call   0xf72c1af5
  1f:	e8 21 75 4f f7       	call   0xf74f7545
  24:	fb                   	sti
  25:	bf 01 00 00 00       	mov    $0x1,%edi
* 2a:	e8 26 7f 1f f7       	call   0xf71f7f55 <-- trapping instruction
  2f:	65 8b 05 f7 fe c8 75 	mov    %gs:0x75c8fef7(%rip),%eax        # 0x75c8ff2d
  36:	85 c0                	test   %eax,%eax
  38:	74 02                	je     0x3c
  3a:	5b                   	pop    %rbx
  3b:	c3                   	ret
  3c:	e8                   	.byte 0xe8
  3d:	44 13 c7             	adc    %edi,%r8d