==================================================================
BUG: KASAN: slab-use-after-free in __create_pipe include/linux/usb.h:1984 [inline]
BUG: KASAN: slab-use-after-free in send_packet+0xa7d/0xc20 drivers/media/rc/imon.c:627
Read of size 4 at addr ffff888022844000 by task syz-executor.0/5740

CPU: 1 PID: 5740 Comm: syz-executor.0 Not tainted 6.7.0-syzkaller-g052d534373b7 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:377 [inline]
 print_report+0xc4/0x620 mm/kasan/report.c:488
 kasan_report+0xda/0x110 mm/kasan/report.c:601
 __create_pipe include/linux/usb.h:1984 [inline]
 send_packet+0xa7d/0xc20 drivers/media/rc/imon.c:627
 vfd_write+0x2f6/0x610 drivers/media/rc/imon.c:989
 vfs_write+0x2a4/0xdf0 fs/read_write.c:588
 ksys_write+0x12f/0x250 fs/read_write.c:643
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f2ba8e7cce9
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:00007f2ba9b330c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f2ba8f9c050 RCX: 00007f2ba8e7cce9
RDX: 0000000000000001 RSI: 0000000020001000 RDI: 0000000000000004
RBP: 00007f2ba8ec947a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f2ba8f9c050 R15: 00007fffcefafbf8
 </TASK>

Allocated by task 1394:
 kasan_save_stack+0x33/0x50 mm/kasan/common.c:47
 kasan_save_track+0x14/0x30 mm/kasan/common.c:68
 poison_kmalloc_redzone mm/kasan/common.c:372 [inline]
 __kasan_kmalloc+0xa2/0xb0 mm/kasan/common.c:389
 kmalloc include/linux/slab.h:590 [inline]
 kzalloc include/linux/slab.h:711 [inline]
 usb_alloc_dev+0x55/0xdb0 drivers/usb/core/usb.c:650
 hub_port_connect drivers/usb/core/hub.c:5343 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5580 [inline]
 port_event drivers/usb/core/hub.c:5740 [inline]
 hub_event+0x2850/0x4e10 drivers/usb/core/hub.c:5822
 process_one_work+0x886/0x15d0 kernel/workqueue.c:2633
 process_scheduled_works kernel/workqueue.c:2706 [inline]
 worker_thread+0x8b9/0x1290 kernel/workqueue.c:2787
 kthread+0x2c6/0x3a0 kernel/kthread.c:388
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242

Freed by task 1394:
 kasan_save_stack+0x33/0x50 mm/kasan/common.c:47
 kasan_save_track+0x14/0x30 mm/kasan/common.c:68
 kasan_save_free_info+0x3f/0x60 mm/kasan/generic.c:634
 poison_slab_object mm/kasan/common.c:241 [inline]
 __kasan_slab_free+0x121/0x1b0 mm/kasan/common.c:257
 kasan_slab_free include/linux/kasan.h:184 [inline]
 slab_free_hook mm/slub.c:2121 [inline]
 slab_free mm/slub.c:4299 [inline]
 kfree+0x124/0x360 mm/slub.c:4409
 device_release+0xa1/0x240 drivers/base/core.c:2485
 kobject_cleanup lib/kobject.c:682 [inline]
 kobject_release lib/kobject.c:716 [inline]
 kref_put include/linux/kref.h:65 [inline]
 kobject_put+0x1d0/0x440 lib/kobject.c:733
 put_device+0x1f/0x30 drivers/base/core.c:3733
 hub_port_connect drivers/usb/core/hub.c:5280 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5580 [inline]
 port_event drivers/usb/core/hub.c:5740 [inline]
 hub_event+0x1db7/0x4e10 drivers/usb/core/hub.c:5822
 process_one_work+0x886/0x15d0 kernel/workqueue.c:2633
 process_scheduled_works kernel/workqueue.c:2706 [inline]
 worker_thread+0x8b9/0x1290 kernel/workqueue.c:2787
 kthread+0x2c6/0x3a0 kernel/kthread.c:388
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242

The buggy address belongs to the object at ffff888022844000
 which belongs to the cache kmalloc-2k of size 2048
The buggy address is located 0 bytes inside of
 freed 2048-byte region [ffff888022844000, ffff888022844800)

The buggy address belongs to the physical page:
page:ffffea00008a1000 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x22840
head:ffffea00008a1000 order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0
anon flags: 0xfff00000000840(slab|head|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff00000000840 ffff888013042f00 0000000000000000 dead000000000001
raw: 0000000000000000 0000000000080008 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 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1, tgid 1 (swapper/0), ts 10513322548, free_ts 0
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x2d0/0x350 mm/page_alloc.c:1533
 prep_new_page mm/page_alloc.c:1540 [inline]
 get_page_from_freelist+0xa28/0x3780 mm/page_alloc.c:3311
 __alloc_pages+0x22f/0x2440 mm/page_alloc.c:4567
 __alloc_pages_node include/linux/gfp.h:238 [inline]
 alloc_pages_node include/linux/gfp.h:261 [inline]
 alloc_slab_page mm/slub.c:2190 [inline]
 allocate_slab mm/slub.c:2354 [inline]
 new_slab+0xcc/0x3a0 mm/slub.c:2407
 ___slab_alloc+0x4af/0x19a0 mm/slub.c:3540
 __slab_alloc.constprop.0+0x56/0xa0 mm/slub.c:3625
 __slab_alloc_node mm/slub.c:3678 [inline]
 slab_alloc_node mm/slub.c:3850 [inline]
 kmalloc_trace+0x30b/0x340 mm/slub.c:4007
 kmalloc include/linux/slab.h:590 [inline]
 kzalloc include/linux/slab.h:711 [inline]
 device_create_groups_vargs+0x8a/0x270 drivers/base/core.c:4294
 device_create+0xe9/0x120 drivers/base/core.c:4351
 mon_bin_add+0xba/0x160 drivers/usb/mon/mon_bin.c:1366
 mon_bus_init+0x18e/0x320 drivers/usb/mon/mon_main.c:291
 mon_bus_add drivers/usb/mon/mon_main.c:188 [inline]
 mon_notify+0x32e/0x490 drivers/usb/mon/mon_main.c:219
 notifier_call_chain+0xb6/0x3b0 kernel/notifier.c:93
 blocking_notifier_call_chain kernel/notifier.c:388 [inline]
 blocking_notifier_call_chain+0x69/0x90 kernel/notifier.c:376
 usb_register_bus drivers/usb/core/hcd.c:910 [inline]
 usb_add_hcd+0x34d/0x1770 drivers/usb/core/hcd.c:2852
 usb_hcd_pci_probe+0x7e0/0xd90 drivers/usb/core/hcd-pci.c:266
page_owner free stack trace missing

Memory state around the buggy address:
 ffff888022843f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff888022843f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff888022844000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                   ^
 ffff888022844080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888022844100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================