------------[ cut here ]------------
!PageLargeKmalloc(page)
WARNING: mm/slub.c:6371 at free_large_kmalloc+0x96/0xd0 mm/slub.c:6371, CPU#2: kworker/2:3/2735
Modules linked in:

CPU: 2 UID: 0 PID: 2735 Comm: kworker/2:3 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
Workqueue: events request_module_async
RIP: 0010:free_large_kmalloc+0x96/0xd0 mm/slub.c:6371
Code: 28 90 0f 0b 90 80 3d e9 33 59 0e 00 0f 84 95 a1 bb fe 48 8b 74 24 28 48 89 ef e8 55 39 0c 00 b8 00 f0 ff ff 45 31 ed eb be 90 <0f> 0b 90 48 83 c4 08 48 89 df 48 c7 c6 a0 ec e5 8d 5b 5d 41 5c 41
RSP: 0000:ffffc90004b5f818 EFLAGS: 00010293

RAX: 00000000000000f0 RBX: ffffea0005a81400 RCX: ffffffff81b9c2ce
RDX: 0000000000000000 RSI: ffff88816a050000 RDI: ffffea0005a81400
RBP: ffff88816a050000 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: dffffc0000000000 R12: ffff88815de65d58
R13: ffff888056fcc700 R14: dffffc0000000000 R15: ffffed102bbccbad
FS:  0000000000000000(0000) GS:ffff8880d6544000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055a4ce2e9730 CR3: 000000003ec9d000 CR4: 0000000000352ef0
DR0: 0000000040000005 DR1: 0000000100000000 DR2: 0000000000000898
DR3: 0000000000000006 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 urb_destroy drivers/usb/core/urb.c:25 [inline]
 kref_put include/linux/kref.h:65 [inline]
 usb_free_urb.part.0+0xf8/0x110 drivers/usb/core/urb.c:96
 usb_free_urb+0x1f/0x30 drivers/usb/core/urb.c:95
 em28xx_uninit_usb_xfer+0xf3/0x360 drivers/media/usb/em28xx/em28xx-core.c:833
 em28xx_alloc_urbs+0xb43/0xf60 drivers/media/usb/em28xx/em28xx-core.c:945
 em28xx_dvb_init drivers/media/usb/em28xx/em28xx-dvb.c:1519 [inline]
 em28xx_dvb_init.cold+0x197/0x6bc0 drivers/media/usb/em28xx/em28xx-dvb.c:1485
 em28xx_init_extension+0x13a/0x200 drivers/media/usb/em28xx/em28xx-core.c:1117
 request_module_async+0x61/0x80 drivers/media/usb/em28xx/em28xx-cards.c:3457
 process_one_work+0x9d7/0x1920 kernel/workqueue.c:3275
 process_scheduled_works kernel/workqueue.c:3358 [inline]
 worker_thread+0x5da/0xe40 kernel/workqueue.c:3439
 kthread+0x370/0x450 kernel/kthread.c:467
 ret_from_fork+0x754/0xd80 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>