radio-si470x 1-1:0.0: non-zero urb status (-71)
==================================================================
BUG: KASAN: use-after-free in si470x_int_in_callback+0x18b/0x13f0 drivers/media/radio/si470x/radio-si470x-usb.c:378
Read of size 8 at addr ffff88802f948b40 by task kworker/1:2/2939

CPU: 1 PID: 2939 Comm: kworker/1:2 Not tainted 5.13.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: usb_hub_wq hub_event
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0x202/0x31e lib/dump_stack.c:120
 print_address_description+0x5f/0x3b0 mm/kasan/report.c:233
 __kasan_report mm/kasan/report.c:419 [inline]
 kasan_report+0x15c/0x200 mm/kasan/report.c:436
 si470x_int_in_callback+0x18b/0x13f0 drivers/media/radio/si470x/radio-si470x-usb.c:378
 __usb_hcd_giveback_urb+0x375/0x520 drivers/usb/core/hcd.c:1656
 dummy_timer+0x808/0x3100 drivers/usb/gadget/udc/dummy_hcd.c:1978
 call_timer_fn+0xf6/0x210 kernel/time/timer.c:1431
 expire_timers kernel/time/timer.c:1476 [inline]
 __run_timers+0x6ff/0x910 kernel/time/timer.c:1745
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1758
 __do_softirq+0x372/0x7a6 kernel/softirq.c:559
 invoke_softirq kernel/softirq.c:433 [inline]
 __irq_exit_rcu+0x245/0x280 kernel/softirq.c:637
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:649
 sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1100
 </IRQ>
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:647
RIP: 0010:console_unlock+0xb2b/0xec0 kernel/printk/printk.c:2653
Code: 75 1d e8 28 b9 19 00 f6 44 24 0f 01 75 1e e8 1c b9 19 00 e9 54 f7 ff ff 0f 1f 80 00 00 00 00 e8 0b b9 19 00 fb f6 44 24 0f 01 <74> e2 e8 fe b8 19 00 48 c7 c7 b8 e6 f5 8b be 5e 0a 00 00 31 d2 e8
RSP: 0018:ffffc9000117e6e0 EFLAGS: 00000246
RAX: ffffffff816551e5 RBX: ffffc9000117e8a0 RCX: ffff88801eda54c0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000117e930 R08: ffffffff816551a4 R09: fffffbfff204dbb1
R10: fffffbfff204dbb1 R11: 0000000000000000 R12: dffffc0000000000
R13: 1ffffffff1af523d R14: 1ffffffff1af5236 R15: ffffffff8d7a91e8
 vprintk_emit+0x21a/0x2f0 kernel/printk/printk.c:2174
 vprintk+0x30d/0x370 kernel/printk/printk_safe.c:392
 printk+0xc0/0x108 kernel/printk/printk.c:2216
 really_probe+0xcce/0x1020 drivers/base/dd.c:667
 driver_probe_device+0x178/0x350 drivers/base/dd.c:763
 bus_for_each_drv+0x16a/0x1f0 drivers/base/bus.c:431
 __device_attach+0x301/0x560 drivers/base/dd.c:938
 bus_probe_device+0xb8/0x1f0 drivers/base/bus.c:491
 device_add+0x11fc/0x1670 drivers/base/core.c:3320
 usb_set_configuration+0x1a86/0x2100 drivers/usb/core/message.c:2164
 usb_generic_driver_probe+0x83/0x140 drivers/usb/core/generic.c:238
 usb_probe_device+0x13a/0x260 drivers/usb/core/driver.c:293
 really_probe+0x3cb/0x1020 drivers/base/dd.c:580
 driver_probe_device+0x178/0x350 drivers/base/dd.c:763
 bus_for_each_drv+0x16a/0x1f0 drivers/base/bus.c:431
 __device_attach+0x301/0x560 drivers/base/dd.c:938
 bus_probe_device+0xb8/0x1f0 drivers/base/bus.c:491
 device_add+0x11fc/0x1670 drivers/base/core.c:3320
 usb_new_device+0xd45/0x1790 drivers/usb/core/hub.c:2556
 hub_port_connect+0x1055/0x27a0 drivers/usb/core/hub.c:5276
 hub_port_connect_change+0x5d0/0xbf0 drivers/usb/core/hub.c:5416
 port_event+0xaee/0x1140 drivers/usb/core/hub.c:5562
 hub_event+0x48d/0xd90 drivers/usb/core/hub.c:5644
 process_one_work+0x833/0x10c0 kernel/workqueue.c:2276
 worker_thread+0xac1/0x1300 kernel/workqueue.c:2422
 kthread+0x39a/0x3c0 kernel/kthread.c:313
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294

Allocated by task 2939:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track mm/kasan/common.c:46 [inline]
 set_alloc_info mm/kasan/common.c:428 [inline]
 ____kasan_kmalloc+0xc4/0xf0 mm/kasan/common.c:507
 kasan_kmalloc include/linux/kasan.h:246 [inline]
 kmem_cache_alloc_trace+0x96/0x340 mm/slub.c:2940
 kmalloc include/linux/slab.h:556 [inline]
 kzalloc include/linux/slab.h:686 [inline]
 si470x_usb_driver_probe+0x5a/0x2240 drivers/media/radio/si470x/radio-si470x-usb.c:573
 usb_probe_interface+0x633/0xb40 drivers/usb/core/driver.c:396
 really_probe+0x3cb/0x1020 drivers/base/dd.c:580
 driver_probe_device+0x178/0x350 drivers/base/dd.c:763
 bus_for_each_drv+0x16a/0x1f0 drivers/base/bus.c:431
 __device_attach+0x301/0x560 drivers/base/dd.c:938
 bus_probe_device+0xb8/0x1f0 drivers/base/bus.c:491
 device_add+0x11fc/0x1670 drivers/base/core.c:3320
 usb_set_configuration+0x1a86/0x2100 drivers/usb/core/message.c:2164
 usb_generic_driver_probe+0x83/0x140 drivers/usb/core/generic.c:238
 usb_probe_device+0x13a/0x260 drivers/usb/core/driver.c:293
 really_probe+0x3cb/0x1020 drivers/base/dd.c:580
 driver_probe_device+0x178/0x350 drivers/base/dd.c:763
 bus_for_each_drv+0x16a/0x1f0 drivers/base/bus.c:431
 __device_attach+0x301/0x560 drivers/base/dd.c:938
 bus_probe_device+0xb8/0x1f0 drivers/base/bus.c:491
 device_add+0x11fc/0x1670 drivers/base/core.c:3320
 usb_new_device+0xd45/0x1790 drivers/usb/core/hub.c:2556
 hub_port_connect+0x1055/0x27a0 drivers/usb/core/hub.c:5276
 hub_port_connect_change+0x5d0/0xbf0 drivers/usb/core/hub.c:5416
 port_event+0xaee/0x1140 drivers/usb/core/hub.c:5562
 hub_event+0x48d/0xd90 drivers/usb/core/hub.c:5644
 process_one_work+0x833/0x10c0 kernel/workqueue.c:2276
 worker_thread+0xac1/0x1300 kernel/workqueue.c:2422
 kthread+0x39a/0x3c0 kernel/kthread.c:313
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294

Freed by task 2939:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track+0x3d/0x70 mm/kasan/common.c:46
 kasan_set_free_info+0x1f/0x40 mm/kasan/generic.c:357
 ____kasan_slab_free+0x109/0x150 mm/kasan/common.c:360
 kasan_slab_free include/linux/kasan.h:212 [inline]
 slab_free_hook mm/slub.c:1582 [inline]
 slab_free_freelist_hook+0x1d8/0x290 mm/slub.c:1607
 slab_free mm/slub.c:3167 [inline]
 kfree+0xcf/0x2d0 mm/slub.c:4217
 si470x_usb_driver_probe+0x60d/0x2240 drivers/media/radio/si470x/radio-si470x-usb.c:766
 usb_probe_interface+0x633/0xb40 drivers/usb/core/driver.c:396
 really_probe+0x3cb/0x1020 drivers/base/dd.c:580
 driver_probe_device+0x178/0x350 drivers/base/dd.c:763
 bus_for_each_drv+0x16a/0x1f0 drivers/base/bus.c:431
 __device_attach+0x301/0x560 drivers/base/dd.c:938
 bus_probe_device+0xb8/0x1f0 drivers/base/bus.c:491
 device_add+0x11fc/0x1670 drivers/base/core.c:3320
 usb_set_configuration+0x1a86/0x2100 drivers/usb/core/message.c:2164
 usb_generic_driver_probe+0x83/0x140 drivers/usb/core/generic.c:238
 usb_probe_device+0x13a/0x260 drivers/usb/core/driver.c:293
 really_probe+0x3cb/0x1020 drivers/base/dd.c:580
 driver_probe_device+0x178/0x350 drivers/base/dd.c:763
 bus_for_each_drv+0x16a/0x1f0 drivers/base/bus.c:431
 __device_attach+0x301/0x560 drivers/base/dd.c:938
 bus_probe_device+0xb8/0x1f0 drivers/base/bus.c:491
 device_add+0x11fc/0x1670 drivers/base/core.c:3320
 usb_new_device+0xd45/0x1790 drivers/usb/core/hub.c:2556
 hub_port_connect+0x1055/0x27a0 drivers/usb/core/hub.c:5276
 hub_port_connect_change+0x5d0/0xbf0 drivers/usb/core/hub.c:5416
 port_event+0xaee/0x1140 drivers/usb/core/hub.c:5562
 hub_event+0x48d/0xd90 drivers/usb/core/hub.c:5644
 process_one_work+0x833/0x10c0 kernel/workqueue.c:2276
 worker_thread+0xac1/0x1300 kernel/workqueue.c:2422
 kthread+0x39a/0x3c0 kernel/kthread.c:313
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294

The buggy address belongs to the object at ffff88802f948000
 which belongs to the cache kmalloc-4k of size 4096
The buggy address is located 2880 bytes inside of
 4096-byte region [ffff88802f948000, ffff88802f949000)
The buggy address belongs to the page:
page:ffffea0000be5200 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2f948
head:ffffea0000be5200 order:3 compound_mapcount:0 compound_pincount:0
flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000010200 dead000000000100 dead000000000122 ffff888011842140
raw: 0000000000000000 0000000000040004 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 2939, ts 55119295947, free_ts 54542706697
 prep_new_page mm/page_alloc.c:2358 [inline]
 get_page_from_freelist+0x779/0xa20 mm/page_alloc.c:3994
 __alloc_pages+0x26c/0x5f0 mm/page_alloc.c:5200
 alloc_slab_page mm/slub.c:1645 [inline]
 allocate_slab+0xf1/0x5b0 mm/slub.c:1785
 new_slab mm/slub.c:1848 [inline]
 new_slab_objects mm/slub.c:2594 [inline]
 ___slab_alloc+0x1cf/0x350 mm/slub.c:2757
 __slab_alloc mm/slub.c:2797 [inline]
 slab_alloc_node mm/slub.c:2879 [inline]
 slab_alloc mm/slub.c:2921 [inline]
 kmem_cache_alloc_trace+0x2a3/0x340 mm/slub.c:2938
 kmalloc include/linux/slab.h:556 [inline]
 kzalloc include/linux/slab.h:686 [inline]
 si470x_usb_driver_probe+0x5a/0x2240 drivers/media/radio/si470x/radio-si470x-usb.c:573
 usb_probe_interface+0x633/0xb40 drivers/usb/core/driver.c:396
 really_probe+0x3cb/0x1020 drivers/base/dd.c:580
 driver_probe_device+0x178/0x350 drivers/base/dd.c:763
 bus_for_each_drv+0x16a/0x1f0 drivers/base/bus.c:431
 __device_attach+0x301/0x560 drivers/base/dd.c:938
 bus_probe_device+0xb8/0x1f0 drivers/base/bus.c:491
 device_add+0x11fc/0x1670 drivers/base/core.c:3320
 usb_set_configuration+0x1a86/0x2100 drivers/usb/core/message.c:2164
 usb_generic_driver_probe+0x83/0x140 drivers/usb/core/generic.c:238
 usb_probe_device+0x13a/0x260 drivers/usb/core/driver.c:293
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1298 [inline]
 __free_pages_ok+0x10a5/0x1180 mm/page_alloc.c:1572
 free_slab mm/slub.c:1888 [inline]
 discard_slab mm/slub.c:1894 [inline]
 unfreeze_partials+0x18c/0x1e0 mm/slub.c:2375
 put_cpu_partial+0xd2/0x210 mm/slub.c:2411
 __slab_free+0x3a8/0x6b0 mm/slub.c:3061
 do_slab_free mm/slub.c:3155 [inline]
 ___cache_free+0xfc/0x120 mm/slub.c:3174
 qlist_free_all mm/kasan/quarantine.c:165 [inline]
 kasan_quarantine_reduce+0x151/0x1c0 mm/kasan/quarantine.c:272
 __kasan_slab_alloc+0x2f/0xd0 mm/kasan/common.c:438
 kasan_slab_alloc include/linux/kasan.h:236 [inline]
 slab_post_alloc_hook mm/slab.h:524 [inline]
 slab_alloc_node mm/slub.c:2913 [inline]
 slab_alloc mm/slub.c:2921 [inline]
 kmem_cache_alloc+0x1d7/0x340 mm/slub.c:2926
 getname_flags+0xba/0x640 fs/namei.c:138
 user_path_at_empty+0x28/0x50 fs/namei.c:2734
 user_path_at include/linux/namei.h:60 [inline]
 vfs_statx+0x102/0x3d0 fs/stat.c:203
 vfs_fstatat fs/stat.c:225 [inline]
 vfs_stat include/linux/fs.h:3380 [inline]
 __do_sys_newstat fs/stat.c:367 [inline]
 __se_sys_newstat fs/stat.c:363 [inline]
 __x64_sys_newstat+0xd3/0x150 fs/stat.c:363
 do_syscall_64+0x3f/0xb0 arch/x86/entry/common.c:47
 entry_SYSCALL_64_after_hwframe+0x44/0xae

Memory state around the buggy address:
 ffff88802f948a00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88802f948a80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff88802f948b00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                           ^
 ffff88802f948b80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88802f948c00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================