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 ffff8880240f4b40 by task sshd/8388

CPU: 0 PID: 8388 Comm: sshd Not tainted 5.13.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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:lock_acquire+0x1f6/0x720 kernel/locking/lockdep.c:5516
Code: f6 84 24 a1 00 00 00 02 0f 85 8d 02 00 00 f7 c3 00 02 00 00 49 bd 00 00 00 00 00 fc ff df 74 01 fb 48 c7 44 24 40 0e 36 e0 45 <4b> c7 44 3d 00 00 00 00 00 4b c7 44 3d 09 00 00 00 00 43 c7 44 3d
RSP: 0018:ffffc9000100ec00 EFLAGS: 00000206
RAX: 1ffff92000201d94 RBX: 0000000000000246 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc9000100ed78 R08: dffffc0000000000 R09: fffffbfff204dbb1
R10: fffffbfff204dbb1 R11: 0000000000000000 R12: 0000000000000000
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff92000201d88
 rcu_lock_acquire+0x2a/0x30 include/linux/rcupdate.h:267
 rcu_read_lock include/linux/rcupdate.h:657 [inline]
 is_bpf_text_address+0x27/0x270 kernel/bpf/core.c:704
 kernel_text_address kernel/extable.c:151 [inline]
 __kernel_text_address+0x93/0x100 kernel/extable.c:105
 unwind_get_return_address+0x48/0x80 arch/x86/kernel/unwind_orc.c:318
 arch_stack_walk+0x98/0xe0 arch/x86/kernel/stacktrace.c:26
 stack_trace_save+0x104/0x1e0 kernel/stacktrace.c:121
 save_stack+0xeb/0x1f0 mm/page_owner.c:119
 __reset_page_owner+0x51/0x1a0 mm/page_owner.c:140
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1298 [inline]
 free_pcp_prepare+0x3ea/0x420 mm/page_alloc.c:1342
 free_unref_page_prepare mm/page_alloc.c:3250 [inline]
 free_unref_page+0x7b/0x280 mm/page_alloc.c:3298
 mm_free_pgd kernel/fork.c:636 [inline]
 __mmdrop+0xae/0x3f0 kernel/fork.c:687
 mmdrop include/linux/sched/mm.h:49 [inline]
 finish_task_switch+0x227/0x620 kernel/sched/core.c:4237
 context_switch kernel/sched/core.c:4342 [inline]
 __schedule+0xba0/0x1120 kernel/sched/core.c:5147
 schedule+0x14b/0x200 kernel/sched/core.c:5226
 schedule_hrtimeout_range_clock+0x271/0x440 kernel/time/hrtimer.c:2157
 poll_schedule_timeout+0x165/0x220 fs/select.c:243
 do_select+0x1925/0x1ae0 fs/select.c:603
 core_sys_select+0x7fc/0xb90 fs/select.c:677
 kern_select fs/select.c:718 [inline]
 __do_sys_select fs/select.c:725 [inline]
 __se_sys_select+0x2be/0x310 fs/select.c:722
 do_syscall_64+0x3f/0xb0 arch/x86/entry/common.c:47
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f5b5377b5e3
Code: 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 3d 29 d1 2b 00 00 75 13 49 89 ca b8 17 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 34 c3 48 83 ec 08 e8 0b 3f 01 00 48 89 04 24
RSP: 002b:00007fffa731eca8 EFLAGS: 00000246 ORIG_RAX: 0000000000000017
RAX: ffffffffffffffda RBX: 0000557afc0ba110 RCX: 00007f5b5377b5e3
RDX: 0000557afc0ba130 RSI: 0000557afc0ba110 RDI: 000000000000000b
RBP: 0000557afb2c0a88 R08: 00007fffa731ed30 R09: 0000000000000100
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007fffa731ed0f R14: 0000557afb07bbe7 R15: 0000000000000003

Allocated by task 3144:
 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:3324
 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:3324
 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 3144:
 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:3324
 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:3324
 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 ffff8880240f4000
 which belongs to the cache kmalloc-4k of size 4096
The buggy address is located 2880 bytes inside of
 4096-byte region [ffff8880240f4000, ffff8880240f5000)
The buggy address belongs to the page:
page:ffffea0000903c00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x240f0
head:ffffea0000903c00 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 6353, ts 26324983839, free_ts 26302809264
 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]
 uevent_show+0x164/0x320 drivers/base/core.c:2348
 dev_attr_show+0x50/0xc0 drivers/base/core.c:2055
 sysfs_kf_seq_show+0x30e/0x4e0 fs/sysfs/file.c:61
 seq_read_iter+0x43a/0xcf0 fs/seq_file.c:227
 call_read_iter include/linux/fs.h:2108 [inline]
 new_sync_read fs/read_write.c:415 [inline]
 vfs_read+0x9d9/0xc20 fs/read_write.c:496
 ksys_read+0x171/0x2a0 fs/read_write.c:634
 do_syscall_64+0x3f/0xb0 arch/x86/entry/common.c:47
 entry_SYSCALL_64_after_hwframe+0x44/0xae
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]
 __kmalloc+0x22f/0x390 mm/slub.c:4055
 kmalloc include/linux/slab.h:561 [inline]
 tomoyo_realpath_from_path+0xd8/0x610 security/tomoyo/realpath.c:254
 tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
 tomoyo_path_perm+0x201/0x650 security/tomoyo/file.c:822
 security_inode_getattr+0xc0/0x140 security/security.c:1332
 vfs_getattr fs/stat.c:139 [inline]
 vfs_statx+0x188/0x3d0 fs/stat.c:207
 vfs_fstatat fs/stat.c:225 [inline]
 vfs_lstat include/linux/fs.h:3384 [inline]
 __do_sys_newlstat fs/stat.c:380 [inline]
 __se_sys_newlstat fs/stat.c:374 [inline]
 __x64_sys_newlstat+0xd3/0x150 fs/stat.c:374
 do_syscall_64+0x3f/0xb0 arch/x86/entry/common.c:47
 entry_SYSCALL_64_after_hwframe+0x44/0xae

Memory state around the buggy address:
 ffff8880240f4a00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff8880240f4a80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff8880240f4b00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                           ^
 ffff8880240f4b80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff8880240f4c00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================