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* KASAN: invalid-free in rsi_91x_deinit
@ 2019-04-23 12:36 syzbot
  2019-11-19 13:38 ` Andrey Konovalov
  0 siblings, 1 reply; 4+ messages in thread
From: syzbot @ 2019-04-23 12:36 UTC (permalink / raw)
  To: amitkarwar, andreyknvl, davem, kvalo, linux-kernel, linux-usb,
	linux-wireless, netdev, siva8118, syzkaller-bugs

Hello,

syzbot found the following crash on:

HEAD commit:    d34f9519 usb-fuzzer: main usb gadget fuzzer driver
git tree:       https://github.com/google/kasan/tree/usb-fuzzer
console output: https://syzkaller.appspot.com/x/log.txt?x=14a79403200000
kernel config:  https://syzkaller.appspot.com/x/.config?x=c73d1bb5aeaeae20
dashboard link: https://syzkaller.appspot.com/bug?extid=7c72edfb407b2bd866ce
compiler:       gcc (GCC) 9.0.0 20181231 (experimental)
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=17547247200000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=147b3a1d200000

IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+7c72edfb407b2bd866ce@syzkaller.appspotmail.com

usb 1-1: config 252 interface 115 altsetting 0 has 1 endpoint descriptor,  
different from the interface descriptor's value: 4
usb 1-1: New USB device found, idVendor=1618, idProduct=9113,  
bcdDevice=32.21
usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
rsi_91x: rsi_probe: Failed to init usb interface
==================================================================
BUG: KASAN: double-free or invalid-free in slab_free mm/slub.c:3003 [inline]
BUG: KASAN: double-free or invalid-free in kfree+0xce/0x280 mm/slub.c:3958

CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.1.0-rc5-319617-gd34f951 #4
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS  
Google 01/01/2011
Workqueue: usb_hub_wq hub_event
Call Trace:
  __dump_stack lib/dump_stack.c:77 [inline]
  dump_stack+0xe8/0x16e lib/dump_stack.c:113
  print_address_description+0x6c/0x236 mm/kasan/report.c:187
  kasan_report_invalid_free+0x66/0xa0 mm/kasan/report.c:278
  __kasan_slab_free+0x162/0x180 mm/kasan/common.c:438
  slab_free_hook mm/slub.c:1429 [inline]
  slab_free_freelist_hook+0x5e/0x140 mm/slub.c:1456
  slab_free mm/slub.c:3003 [inline]
  kfree+0xce/0x280 mm/slub.c:3958
  rsi_91x_deinit+0x27b/0x300 drivers/net/wireless/rsi/rsi_91x_main.c:407
  rsi_probe+0xdf3/0x140d drivers/net/wireless/rsi/rsi_91x_sdio.c:1178
  usb_probe_interface+0x31d/0x820 drivers/usb/core/driver.c:361
  really_probe+0x2da/0xb10 drivers/base/dd.c:509
  driver_probe_device+0x21d/0x350 drivers/base/dd.c:671
  __device_attach_driver+0x1d8/0x290 drivers/base/dd.c:778
  bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:454
  __device_attach+0x223/0x3a0 drivers/base/dd.c:844
  bus_probe_device+0x1f1/0x2a0 drivers/base/bus.c:514
  device_add+0xad2/0x16e0 drivers/base/core.c:2106
  usb_set_configuration+0xdf7/0x1740 drivers/usb/core/message.c:2021
  generic_probe+0xa2/0xda drivers/usb/core/generic.c:210
  usb_probe_device+0xc0/0x150 drivers/usb/core/driver.c:266
  really_probe+0x2da/0xb10 drivers/base/dd.c:509
  driver_probe_device+0x21d/0x350 drivers/base/dd.c:671
  __device_attach_driver+0x1d8/0x290 drivers/base/dd.c:778
  bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:454
  __device_attach+0x223/0x3a0 drivers/base/dd.c:844
  bus_probe_device+0x1f1/0x2a0 drivers/base/bus.c:514
  device_add+0xad2/0x16e0 drivers/base/core.c:2106
  usb_new_device.cold+0x537/0xccf drivers/usb/core/hub.c:2534
  hub_port_connect drivers/usb/core/hub.c:5089 [inline]
  hub_port_connect_change drivers/usb/core/hub.c:5204 [inline]
  port_event drivers/usb/core/hub.c:5350 [inline]
  hub_event+0x1398/0x3b00 drivers/usb/core/hub.c:5432
  process_one_work+0x90f/0x1580 kernel/workqueue.c:2269
  worker_thread+0x9b/0xe20 kernel/workqueue.c:2415
  kthread+0x313/0x420 kernel/kthread.c:253
  ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352

Allocated by task 12:
  set_track mm/kasan/common.c:87 [inline]
  __kasan_kmalloc mm/kasan/common.c:497 [inline]
  __kasan_kmalloc.constprop.0+0xbf/0xd0 mm/kasan/common.c:470
  rsi_init_sdio_interface drivers/net/wireless/rsi/rsi_91x_sdio.c:853  
[inline]
  rsi_probe+0x11a/0x140d drivers/net/wireless/rsi/rsi_91x_sdio.c:965
  usb_probe_interface+0x31d/0x820 drivers/usb/core/driver.c:361
  really_probe+0x2da/0xb10 drivers/base/dd.c:509
  driver_probe_device+0x21d/0x350 drivers/base/dd.c:671
  __device_attach_driver+0x1d8/0x290 drivers/base/dd.c:778
  bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:454
  __device_attach+0x223/0x3a0 drivers/base/dd.c:844
  bus_probe_device+0x1f1/0x2a0 drivers/base/bus.c:514
  device_add+0xad2/0x16e0 drivers/base/core.c:2106
  usb_set_configuration+0xdf7/0x1740 drivers/usb/core/message.c:2021
  generic_probe+0xa2/0xda drivers/usb/core/generic.c:210
  usb_probe_device+0xc0/0x150 drivers/usb/core/driver.c:266
  really_probe+0x2da/0xb10 drivers/base/dd.c:509
  driver_probe_device+0x21d/0x350 drivers/base/dd.c:671
  __device_attach_driver+0x1d8/0x290 drivers/base/dd.c:778
  bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:454
  __device_attach+0x223/0x3a0 drivers/base/dd.c:844
  bus_probe_device+0x1f1/0x2a0 drivers/base/bus.c:514
  device_add+0xad2/0x16e0 drivers/base/core.c:2106
  usb_new_device.cold+0x537/0xccf drivers/usb/core/hub.c:2534
  hub_port_connect drivers/usb/core/hub.c:5089 [inline]
  hub_port_connect_change drivers/usb/core/hub.c:5204 [inline]
  port_event drivers/usb/core/hub.c:5350 [inline]
  hub_event+0x1398/0x3b00 drivers/usb/core/hub.c:5432
  process_one_work+0x90f/0x1580 kernel/workqueue.c:2269
  worker_thread+0x9b/0xe20 kernel/workqueue.c:2415
  kthread+0x313/0x420 kernel/kthread.c:253
  ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352

Freed by task 12:
  set_track mm/kasan/common.c:87 [inline]
  __kasan_slab_free+0x130/0x180 mm/kasan/common.c:459
  slab_free_hook mm/slub.c:1429 [inline]
  slab_free_freelist_hook+0x5e/0x140 mm/slub.c:1456
  slab_free mm/slub.c:3003 [inline]
  kfree+0xce/0x280 mm/slub.c:3958
  rsi_probe+0xf04/0x140d drivers/net/wireless/rsi/rsi_91x_sdio.c:1196
  usb_probe_interface+0x31d/0x820 drivers/usb/core/driver.c:361
  really_probe+0x2da/0xb10 drivers/base/dd.c:509
  driver_probe_device+0x21d/0x350 drivers/base/dd.c:671
  __device_attach_driver+0x1d8/0x290 drivers/base/dd.c:778
  bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:454
  __device_attach+0x223/0x3a0 drivers/base/dd.c:844
  bus_probe_device+0x1f1/0x2a0 drivers/base/bus.c:514
  device_add+0xad2/0x16e0 drivers/base/core.c:2106
  usb_set_configuration+0xdf7/0x1740 drivers/usb/core/message.c:2021
  generic_probe+0xa2/0xda drivers/usb/core/generic.c:210
  usb_probe_device+0xc0/0x150 drivers/usb/core/driver.c:266
  really_probe+0x2da/0xb10 drivers/base/dd.c:509
  driver_probe_device+0x21d/0x350 drivers/base/dd.c:671
  __device_attach_driver+0x1d8/0x290 drivers/base/dd.c:778
  bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:454
  __device_attach+0x223/0x3a0 drivers/base/dd.c:844
  bus_probe_device+0x1f1/0x2a0 drivers/base/bus.c:514
  device_add+0xad2/0x16e0 drivers/base/core.c:2106
  usb_new_device.cold+0x537/0xccf drivers/usb/core/hub.c:2534
  hub_port_connect drivers/usb/core/hub.c:5089 [inline]
  hub_port_connect_change drivers/usb/core/hub.c:5204 [inline]
  port_event drivers/usb/core/hub.c:5350 [inline]
  hub_event+0x1398/0x3b00 drivers/usb/core/hub.c:5432
  process_one_work+0x90f/0x1580 kernel/workqueue.c:2269
  worker_thread+0x9b/0xe20 kernel/workqueue.c:2415
  kthread+0x313/0x420 kernel/kthread.c:253
  ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352

The buggy address belongs to the object at ffff888214af0c80
  which belongs to the cache kmalloc-512 of size 512
The buggy address is located 0 bytes inside of
  512-byte region [ffff888214af0c80, ffff888214af0e80)
The buggy address belongs to the page:
page:ffffea000852bc00 count:1 mapcount:0 mapping:ffff88812c3f4c00  
index:0xffff888214af1180 compound_mapcount: 0
flags: 0x57ff00000010200(slab|head)
raw: 057ff00000010200 ffffea00086b3780 0000000800000008 ffff88812c3f4c00
raw: ffff888214af1180 00000000800c000a 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
  ffff888214af0b80: 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc fc
  ffff888214af0c00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
> ffff888214af0c80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                    ^
  ffff888214af0d00: fb fb fb fb fb fb f


---
This bug is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzkaller@googlegroups.com.

syzbot will keep track of this bug report. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
syzbot can test patches for this bug, for details see:
https://goo.gl/tpsmEJ#testing-patches

^ permalink raw reply	[flat|nested] 4+ messages in thread
* Re: KASAN: invalid-free in rsi_91x_deinit
  2019-04-23 12:36 KASAN: invalid-free in rsi_91x_deinit syzbot
@ 2019-11-19 13:38 ` Andrey Konovalov
  2019-11-28 17:07   ` Johan Hovold
  0 siblings, 1 reply; 4+ messages in thread
From: Andrey Konovalov @ 2019-11-19 13:38 UTC (permalink / raw)
  To: syzbot
  Cc: amitkarwar, David S. Miller, Kalle Valo, LKML, USB list,
	linux-wireless, netdev, siva8118, syzkaller-bugs

On Tue, Apr 23, 2019 at 2:36 PM syzbot
<syzbot+7c72edfb407b2bd866ce@syzkaller.appspotmail.com> wrote:
>
> Hello,
>
> syzbot found the following crash on:
>
> HEAD commit:    d34f9519 usb-fuzzer: main usb gadget fuzzer driver
> git tree:       https://github.com/google/kasan/tree/usb-fuzzer
> console output: https://syzkaller.appspot.com/x/log.txt?x=14a79403200000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=c73d1bb5aeaeae20
> dashboard link: https://syzkaller.appspot.com/bug?extid=7c72edfb407b2bd866ce
> compiler:       gcc (GCC) 9.0.0 20181231 (experimental)
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=17547247200000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=147b3a1d200000
>
> IMPORTANT: if you fix the bug, please add the following tag to the commit:
> Reported-by: syzbot+7c72edfb407b2bd866ce@syzkaller.appspotmail.com
>
> usb 1-1: config 252 interface 115 altsetting 0 has 1 endpoint descriptor,
> different from the interface descriptor's value: 4
> usb 1-1: New USB device found, idVendor=1618, idProduct=9113,
> bcdDevice=32.21
> usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
> rsi_91x: rsi_probe: Failed to init usb interface
> ==================================================================
> BUG: KASAN: double-free or invalid-free in slab_free mm/slub.c:3003 [inline]
> BUG: KASAN: double-free or invalid-free in kfree+0xce/0x280 mm/slub.c:3958
>
> CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.1.0-rc5-319617-gd34f951 #4
> Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
> Google 01/01/2011
> Workqueue: usb_hub_wq hub_event
> Call Trace:
>   __dump_stack lib/dump_stack.c:77 [inline]
>   dump_stack+0xe8/0x16e lib/dump_stack.c:113
>   print_address_description+0x6c/0x236 mm/kasan/report.c:187
>   kasan_report_invalid_free+0x66/0xa0 mm/kasan/report.c:278
>   __kasan_slab_free+0x162/0x180 mm/kasan/common.c:438
>   slab_free_hook mm/slub.c:1429 [inline]
>   slab_free_freelist_hook+0x5e/0x140 mm/slub.c:1456
>   slab_free mm/slub.c:3003 [inline]
>   kfree+0xce/0x280 mm/slub.c:3958
>   rsi_91x_deinit+0x27b/0x300 drivers/net/wireless/rsi/rsi_91x_main.c:407
>   rsi_probe+0xdf3/0x140d drivers/net/wireless/rsi/rsi_91x_sdio.c:1178
>   usb_probe_interface+0x31d/0x820 drivers/usb/core/driver.c:361
>   really_probe+0x2da/0xb10 drivers/base/dd.c:509
>   driver_probe_device+0x21d/0x350 drivers/base/dd.c:671
>   __device_attach_driver+0x1d8/0x290 drivers/base/dd.c:778
>   bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:454
>   __device_attach+0x223/0x3a0 drivers/base/dd.c:844
>   bus_probe_device+0x1f1/0x2a0 drivers/base/bus.c:514
>   device_add+0xad2/0x16e0 drivers/base/core.c:2106
>   usb_set_configuration+0xdf7/0x1740 drivers/usb/core/message.c:2021
>   generic_probe+0xa2/0xda drivers/usb/core/generic.c:210
>   usb_probe_device+0xc0/0x150 drivers/usb/core/driver.c:266
>   really_probe+0x2da/0xb10 drivers/base/dd.c:509
>   driver_probe_device+0x21d/0x350 drivers/base/dd.c:671
>   __device_attach_driver+0x1d8/0x290 drivers/base/dd.c:778
>   bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:454
>   __device_attach+0x223/0x3a0 drivers/base/dd.c:844
>   bus_probe_device+0x1f1/0x2a0 drivers/base/bus.c:514
>   device_add+0xad2/0x16e0 drivers/base/core.c:2106
>   usb_new_device.cold+0x537/0xccf drivers/usb/core/hub.c:2534
>   hub_port_connect drivers/usb/core/hub.c:5089 [inline]
>   hub_port_connect_change drivers/usb/core/hub.c:5204 [inline]
>   port_event drivers/usb/core/hub.c:5350 [inline]
>   hub_event+0x1398/0x3b00 drivers/usb/core/hub.c:5432
>   process_one_work+0x90f/0x1580 kernel/workqueue.c:2269
>   worker_thread+0x9b/0xe20 kernel/workqueue.c:2415
>   kthread+0x313/0x420 kernel/kthread.c:253
>   ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
>
> Allocated by task 12:
>   set_track mm/kasan/common.c:87 [inline]
>   __kasan_kmalloc mm/kasan/common.c:497 [inline]
>   __kasan_kmalloc.constprop.0+0xbf/0xd0 mm/kasan/common.c:470
>   rsi_init_sdio_interface drivers/net/wireless/rsi/rsi_91x_sdio.c:853
> [inline]
>   rsi_probe+0x11a/0x140d drivers/net/wireless/rsi/rsi_91x_sdio.c:965
>   usb_probe_interface+0x31d/0x820 drivers/usb/core/driver.c:361
>   really_probe+0x2da/0xb10 drivers/base/dd.c:509
>   driver_probe_device+0x21d/0x350 drivers/base/dd.c:671
>   __device_attach_driver+0x1d8/0x290 drivers/base/dd.c:778
>   bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:454
>   __device_attach+0x223/0x3a0 drivers/base/dd.c:844
>   bus_probe_device+0x1f1/0x2a0 drivers/base/bus.c:514
>   device_add+0xad2/0x16e0 drivers/base/core.c:2106
>   usb_set_configuration+0xdf7/0x1740 drivers/usb/core/message.c:2021
>   generic_probe+0xa2/0xda drivers/usb/core/generic.c:210
>   usb_probe_device+0xc0/0x150 drivers/usb/core/driver.c:266
>   really_probe+0x2da/0xb10 drivers/base/dd.c:509
>   driver_probe_device+0x21d/0x350 drivers/base/dd.c:671
>   __device_attach_driver+0x1d8/0x290 drivers/base/dd.c:778
>   bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:454
>   __device_attach+0x223/0x3a0 drivers/base/dd.c:844
>   bus_probe_device+0x1f1/0x2a0 drivers/base/bus.c:514
>   device_add+0xad2/0x16e0 drivers/base/core.c:2106
>   usb_new_device.cold+0x537/0xccf drivers/usb/core/hub.c:2534
>   hub_port_connect drivers/usb/core/hub.c:5089 [inline]
>   hub_port_connect_change drivers/usb/core/hub.c:5204 [inline]
>   port_event drivers/usb/core/hub.c:5350 [inline]
>   hub_event+0x1398/0x3b00 drivers/usb/core/hub.c:5432
>   process_one_work+0x90f/0x1580 kernel/workqueue.c:2269
>   worker_thread+0x9b/0xe20 kernel/workqueue.c:2415
>   kthread+0x313/0x420 kernel/kthread.c:253
>   ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
>
> Freed by task 12:
>   set_track mm/kasan/common.c:87 [inline]
>   __kasan_slab_free+0x130/0x180 mm/kasan/common.c:459
>   slab_free_hook mm/slub.c:1429 [inline]
>   slab_free_freelist_hook+0x5e/0x140 mm/slub.c:1456
>   slab_free mm/slub.c:3003 [inline]
>   kfree+0xce/0x280 mm/slub.c:3958
>   rsi_probe+0xf04/0x140d drivers/net/wireless/rsi/rsi_91x_sdio.c:1196
>   usb_probe_interface+0x31d/0x820 drivers/usb/core/driver.c:361
>   really_probe+0x2da/0xb10 drivers/base/dd.c:509
>   driver_probe_device+0x21d/0x350 drivers/base/dd.c:671
>   __device_attach_driver+0x1d8/0x290 drivers/base/dd.c:778
>   bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:454
>   __device_attach+0x223/0x3a0 drivers/base/dd.c:844
>   bus_probe_device+0x1f1/0x2a0 drivers/base/bus.c:514
>   device_add+0xad2/0x16e0 drivers/base/core.c:2106
>   usb_set_configuration+0xdf7/0x1740 drivers/usb/core/message.c:2021
>   generic_probe+0xa2/0xda drivers/usb/core/generic.c:210
>   usb_probe_device+0xc0/0x150 drivers/usb/core/driver.c:266
>   really_probe+0x2da/0xb10 drivers/base/dd.c:509
>   driver_probe_device+0x21d/0x350 drivers/base/dd.c:671
>   __device_attach_driver+0x1d8/0x290 drivers/base/dd.c:778
>   bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:454
>   __device_attach+0x223/0x3a0 drivers/base/dd.c:844
>   bus_probe_device+0x1f1/0x2a0 drivers/base/bus.c:514
>   device_add+0xad2/0x16e0 drivers/base/core.c:2106
>   usb_new_device.cold+0x537/0xccf drivers/usb/core/hub.c:2534
>   hub_port_connect drivers/usb/core/hub.c:5089 [inline]
>   hub_port_connect_change drivers/usb/core/hub.c:5204 [inline]
>   port_event drivers/usb/core/hub.c:5350 [inline]
>   hub_event+0x1398/0x3b00 drivers/usb/core/hub.c:5432
>   process_one_work+0x90f/0x1580 kernel/workqueue.c:2269
>   worker_thread+0x9b/0xe20 kernel/workqueue.c:2415
>   kthread+0x313/0x420 kernel/kthread.c:253
>   ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
>
> The buggy address belongs to the object at ffff888214af0c80
>   which belongs to the cache kmalloc-512 of size 512
> The buggy address is located 0 bytes inside of
>   512-byte region [ffff888214af0c80, ffff888214af0e80)
> The buggy address belongs to the page:
> page:ffffea000852bc00 count:1 mapcount:0 mapping:ffff88812c3f4c00
> index:0xffff888214af1180 compound_mapcount: 0
> flags: 0x57ff00000010200(slab|head)
> raw: 057ff00000010200 ffffea00086b3780 0000000800000008 ffff88812c3f4c00
> raw: ffff888214af1180 00000000800c000a 00000001ffffffff 0000000000000000
> page dumped because: kasan: bad access detected
>
> Memory state around the buggy address:
>   ffff888214af0b80: 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc fc
>   ffff888214af0c00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
> > ffff888214af0c80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>                     ^
>   ffff888214af0d00: fb fb fb fb fb fb f
>
>
> ---
> This bug is generated by a bot. It may contain errors.
> See https://goo.gl/tpsmEJ for more information about syzbot.
> syzbot engineers can be reached at syzkaller@googlegroups.com.
>
> syzbot will keep track of this bug report. See:
> https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
> syzbot can test patches for this bug, for details see:
> https://goo.gl/tpsmEJ#testing-patches

Most likely the same issue as:

#syz dup: WARNING: ODEBUG bug in rsi_probe

https://syzkaller.appspot.com/bug?extid=1d1597a5aa3679c65b9f

^ permalink raw reply	[flat|nested] 4+ messages in thread
* Re: KASAN: invalid-free in rsi_91x_deinit
  2019-11-19 13:38 ` Andrey Konovalov
@ 2019-11-28 17:07   ` Johan Hovold
  2019-11-28 17:09     ` Johan Hovold
  0 siblings, 1 reply; 4+ messages in thread
From: Johan Hovold @ 2019-11-28 17:07 UTC (permalink / raw)
  To: Andrey Konovalov
  Cc: syzbot, amitkarwar, David S. Miller, Kalle Valo, LKML, USB list,
	linux-wireless, netdev, siva8118, syzkaller-bugs

On Tue, Nov 19, 2019 at 02:38:11PM +0100, Andrey Konovalov wrote:
> On Tue, Apr 23, 2019 at 2:36 PM syzbot
> <syzbot+7c72edfb407b2bd866ce@syzkaller.appspotmail.com> wrote:
> >
> > Hello,
> >
> > syzbot found the following crash on:
> >
> > HEAD commit:    d34f9519 usb-fuzzer: main usb gadget fuzzer driver
> > git tree:       https://github.com/google/kasan/tree/usb-fuzzer
> > console output: https://syzkaller.appspot.com/x/log.txt?x=14a79403200000
> > kernel config:  https://syzkaller.appspot.com/x/.config?x=c73d1bb5aeaeae20
> > dashboard link: https://syzkaller.appspot.com/bug?extid=7c72edfb407b2bd866ce
> > compiler:       gcc (GCC) 9.0.0 20181231 (experimental)
> > syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=17547247200000
> > C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=147b3a1d200000
> >
> > IMPORTANT: if you fix the bug, please add the following tag to the commit:
> > Reported-by: syzbot+7c72edfb407b2bd866ce@syzkaller.appspotmail.com
> >
> > usb 1-1: config 252 interface 115 altsetting 0 has 1 endpoint descriptor,
> > different from the interface descriptor's value: 4
> > usb 1-1: New USB device found, idVendor=1618, idProduct=9113,
> > bcdDevice=32.21
> > usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
> > rsi_91x: rsi_probe: Failed to init usb interface
> > ==================================================================
> > BUG: KASAN: double-free or invalid-free in slab_free mm/slub.c:3003 [inline]
> > BUG: KASAN: double-free or invalid-free in kfree+0xce/0x280 mm/slub.c:3958
> >
> > CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.1.0-rc5-319617-gd34f951 #4
> > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
> > Google 01/01/2011
> > Workqueue: usb_hub_wq hub_event
> > Call Trace:
> >   __dump_stack lib/dump_stack.c:77 [inline]
> >   dump_stack+0xe8/0x16e lib/dump_stack.c:113
> >   print_address_description+0x6c/0x236 mm/kasan/report.c:187
> >   kasan_report_invalid_free+0x66/0xa0 mm/kasan/report.c:278
> >   __kasan_slab_free+0x162/0x180 mm/kasan/common.c:438
> >   slab_free_hook mm/slub.c:1429 [inline]
> >   slab_free_freelist_hook+0x5e/0x140 mm/slub.c:1456
> >   slab_free mm/slub.c:3003 [inline]
> >   kfree+0xce/0x280 mm/slub.c:3958
> >   rsi_91x_deinit+0x27b/0x300 drivers/net/wireless/rsi/rsi_91x_main.c:407
> >   rsi_probe+0xdf3/0x140d drivers/net/wireless/rsi/rsi_91x_sdio.c:1178
> >   usb_probe_interface+0x31d/0x820 drivers/usb/core/driver.c:361
> >   really_probe+0x2da/0xb10 drivers/base/dd.c:509
> >   driver_probe_device+0x21d/0x350 drivers/base/dd.c:671
> >   __device_attach_driver+0x1d8/0x290 drivers/base/dd.c:778
> >   bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:454
> >   __device_attach+0x223/0x3a0 drivers/base/dd.c:844
> >   bus_probe_device+0x1f1/0x2a0 drivers/base/bus.c:514
> >   device_add+0xad2/0x16e0 drivers/base/core.c:2106
> >   usb_set_configuration+0xdf7/0x1740 drivers/usb/core/message.c:2021
> >   generic_probe+0xa2/0xda drivers/usb/core/generic.c:210
> >   usb_probe_device+0xc0/0x150 drivers/usb/core/driver.c:266
> >   really_probe+0x2da/0xb10 drivers/base/dd.c:509
> >   driver_probe_device+0x21d/0x350 drivers/base/dd.c:671
> >   __device_attach_driver+0x1d8/0x290 drivers/base/dd.c:778
> >   bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:454
> >   __device_attach+0x223/0x3a0 drivers/base/dd.c:844
> >   bus_probe_device+0x1f1/0x2a0 drivers/base/bus.c:514
> >   device_add+0xad2/0x16e0 drivers/base/core.c:2106
> >   usb_new_device.cold+0x537/0xccf drivers/usb/core/hub.c:2534
> >   hub_port_connect drivers/usb/core/hub.c:5089 [inline]
> >   hub_port_connect_change drivers/usb/core/hub.c:5204 [inline]
> >   port_event drivers/usb/core/hub.c:5350 [inline]
> >   hub_event+0x1398/0x3b00 drivers/usb/core/hub.c:5432
> >   process_one_work+0x90f/0x1580 kernel/workqueue.c:2269
> >   worker_thread+0x9b/0xe20 kernel/workqueue.c:2415
> >   kthread+0x313/0x420 kernel/kthread.c:253
> >   ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
> >
> > Allocated by task 12:
> >   set_track mm/kasan/common.c:87 [inline]
> >   __kasan_kmalloc mm/kasan/common.c:497 [inline]
> >   __kasan_kmalloc.constprop.0+0xbf/0xd0 mm/kasan/common.c:470
> >   rsi_init_sdio_interface drivers/net/wireless/rsi/rsi_91x_sdio.c:853
> > [inline]
> >   rsi_probe+0x11a/0x140d drivers/net/wireless/rsi/rsi_91x_sdio.c:965
> >   usb_probe_interface+0x31d/0x820 drivers/usb/core/driver.c:361
> >   really_probe+0x2da/0xb10 drivers/base/dd.c:509
> >   driver_probe_device+0x21d/0x350 drivers/base/dd.c:671
> >   __device_attach_driver+0x1d8/0x290 drivers/base/dd.c:778
> >   bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:454
> >   __device_attach+0x223/0x3a0 drivers/base/dd.c:844
> >   bus_probe_device+0x1f1/0x2a0 drivers/base/bus.c:514
> >   device_add+0xad2/0x16e0 drivers/base/core.c:2106
> >   usb_set_configuration+0xdf7/0x1740 drivers/usb/core/message.c:2021
> >   generic_probe+0xa2/0xda drivers/usb/core/generic.c:210
> >   usb_probe_device+0xc0/0x150 drivers/usb/core/driver.c:266
> >   really_probe+0x2da/0xb10 drivers/base/dd.c:509
> >   driver_probe_device+0x21d/0x350 drivers/base/dd.c:671
> >   __device_attach_driver+0x1d8/0x290 drivers/base/dd.c:778
> >   bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:454
> >   __device_attach+0x223/0x3a0 drivers/base/dd.c:844
> >   bus_probe_device+0x1f1/0x2a0 drivers/base/bus.c:514
> >   device_add+0xad2/0x16e0 drivers/base/core.c:2106
> >   usb_new_device.cold+0x537/0xccf drivers/usb/core/hub.c:2534
> >   hub_port_connect drivers/usb/core/hub.c:5089 [inline]
> >   hub_port_connect_change drivers/usb/core/hub.c:5204 [inline]
> >   port_event drivers/usb/core/hub.c:5350 [inline]
> >   hub_event+0x1398/0x3b00 drivers/usb/core/hub.c:5432
> >   process_one_work+0x90f/0x1580 kernel/workqueue.c:2269
> >   worker_thread+0x9b/0xe20 kernel/workqueue.c:2415
> >   kthread+0x313/0x420 kernel/kthread.c:253
> >   ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
> >
> > Freed by task 12:
> >   set_track mm/kasan/common.c:87 [inline]
> >   __kasan_slab_free+0x130/0x180 mm/kasan/common.c:459
> >   slab_free_hook mm/slub.c:1429 [inline]
> >   slab_free_freelist_hook+0x5e/0x140 mm/slub.c:1456
> >   slab_free mm/slub.c:3003 [inline]
> >   kfree+0xce/0x280 mm/slub.c:3958
> >   rsi_probe+0xf04/0x140d drivers/net/wireless/rsi/rsi_91x_sdio.c:1196
> >   usb_probe_interface+0x31d/0x820 drivers/usb/core/driver.c:361
> >   really_probe+0x2da/0xb10 drivers/base/dd.c:509
> >   driver_probe_device+0x21d/0x350 drivers/base/dd.c:671
> >   __device_attach_driver+0x1d8/0x290 drivers/base/dd.c:778
> >   bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:454
> >   __device_attach+0x223/0x3a0 drivers/base/dd.c:844
> >   bus_probe_device+0x1f1/0x2a0 drivers/base/bus.c:514
> >   device_add+0xad2/0x16e0 drivers/base/core.c:2106
> >   usb_set_configuration+0xdf7/0x1740 drivers/usb/core/message.c:2021
> >   generic_probe+0xa2/0xda drivers/usb/core/generic.c:210
> >   usb_probe_device+0xc0/0x150 drivers/usb/core/driver.c:266
> >   really_probe+0x2da/0xb10 drivers/base/dd.c:509
> >   driver_probe_device+0x21d/0x350 drivers/base/dd.c:671
> >   __device_attach_driver+0x1d8/0x290 drivers/base/dd.c:778
> >   bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:454
> >   __device_attach+0x223/0x3a0 drivers/base/dd.c:844
> >   bus_probe_device+0x1f1/0x2a0 drivers/base/bus.c:514
> >   device_add+0xad2/0x16e0 drivers/base/core.c:2106
> >   usb_new_device.cold+0x537/0xccf drivers/usb/core/hub.c:2534
> >   hub_port_connect drivers/usb/core/hub.c:5089 [inline]
> >   hub_port_connect_change drivers/usb/core/hub.c:5204 [inline]
> >   port_event drivers/usb/core/hub.c:5350 [inline]
> >   hub_event+0x1398/0x3b00 drivers/usb/core/hub.c:5432
> >   process_one_work+0x90f/0x1580 kernel/workqueue.c:2269
> >   worker_thread+0x9b/0xe20 kernel/workqueue.c:2415
> >   kthread+0x313/0x420 kernel/kthread.c:253
> >   ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
> >
> > The buggy address belongs to the object at ffff888214af0c80
> >   which belongs to the cache kmalloc-512 of size 512
> > The buggy address is located 0 bytes inside of
> >   512-byte region [ffff888214af0c80, ffff888214af0e80)
> > The buggy address belongs to the page:
> > page:ffffea000852bc00 count:1 mapcount:0 mapping:ffff88812c3f4c00
> > index:0xffff888214af1180 compound_mapcount: 0
> > flags: 0x57ff00000010200(slab|head)
> > raw: 057ff00000010200 ffffea00086b3780 0000000800000008 ffff88812c3f4c00
> > raw: ffff888214af1180 00000000800c000a 00000001ffffffff 0000000000000000
> > page dumped because: kasan: bad access detected
> >
> > Memory state around the buggy address:
> >   ffff888214af0b80: 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc fc
> >   ffff888214af0c00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
> > > ffff888214af0c80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
> >                     ^
> >   ffff888214af0d00: fb fb fb fb fb fb f
> >
> >
> > ---
> > This bug is generated by a bot. It may contain errors.
> > See https://goo.gl/tpsmEJ for more information about syzbot.
> > syzbot engineers can be reached at syzkaller@googlegroups.com.
> >
> > syzbot will keep track of this bug report. See:
> > https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
> > syzbot can test patches for this bug, for details see:
> > https://goo.gl/tpsmEJ#testing-patches
> 
> Most likely the same issue as:
> 
> #syz dup: WARNING: ODEBUG bug in rsi_probe
> 
> https://syzkaller.appspot.com/bug?extid=1d1597a5aa3679c65b9f

No, this was separate bug that was fixed by commit 8b51dc729147 ("rsi:
fix a double free bug in rsi_91x_deinit()").

Let me try to mark it as such:

#syz undup

Johan

^ permalink raw reply	[flat|nested] 4+ messages in thread
* Re: KASAN: invalid-free in rsi_91x_deinit
  2019-11-28 17:07   ` Johan Hovold
@ 2019-11-28 17:09     ` Johan Hovold
  0 siblings, 0 replies; 4+ messages in thread
From: Johan Hovold @ 2019-11-28 17:09 UTC (permalink / raw)
  To: Andrey Konovalov
  Cc: syzbot, amitkarwar, David S. Miller, Kalle Valo, LKML, USB list,
	linux-wireless, netdev, siva8118, syzkaller-bugs

On Thu, Nov 28, 2019 at 06:07:02PM +0100, Johan Hovold wrote:
> On Tue, Nov 19, 2019 at 02:38:11PM +0100, Andrey Konovalov wrote:
> > On Tue, Apr 23, 2019 at 2:36 PM syzbot
> > <syzbot+7c72edfb407b2bd866ce@syzkaller.appspotmail.com> wrote:
> > >
> > > Hello,
> > >
> > > syzbot found the following crash on:
> > >
> > > HEAD commit:    d34f9519 usb-fuzzer: main usb gadget fuzzer driver
> > > git tree:       https://github.com/google/kasan/tree/usb-fuzzer
> > > console output: https://syzkaller.appspot.com/x/log.txt?x=14a79403200000
> > > kernel config:  https://syzkaller.appspot.com/x/.config?x=c73d1bb5aeaeae20
> > > dashboard link: https://syzkaller.appspot.com/bug?extid=7c72edfb407b2bd866ce
> > > compiler:       gcc (GCC) 9.0.0 20181231 (experimental)
> > > syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=17547247200000
> > > C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=147b3a1d200000
> > >
> > > IMPORTANT: if you fix the bug, please add the following tag to the commit:
> > > Reported-by: syzbot+7c72edfb407b2bd866ce@syzkaller.appspotmail.com
> > >
> > > usb 1-1: config 252 interface 115 altsetting 0 has 1 endpoint descriptor,
> > > different from the interface descriptor's value: 4
> > > usb 1-1: New USB device found, idVendor=1618, idProduct=9113,
> > > bcdDevice=32.21
> > > usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
> > > rsi_91x: rsi_probe: Failed to init usb interface
> > > ==================================================================
> > > BUG: KASAN: double-free or invalid-free in slab_free mm/slub.c:3003 [inline]
> > > BUG: KASAN: double-free or invalid-free in kfree+0xce/0x280 mm/slub.c:3958

> > Most likely the same issue as:
> > 
> > #syz dup: WARNING: ODEBUG bug in rsi_probe
> > 
> > https://syzkaller.appspot.com/bug?extid=1d1597a5aa3679c65b9f
> 
> No, this was separate bug that was fixed by commit 8b51dc729147 ("rsi:
> fix a double free bug in rsi_91x_deinit()").
> 
> Let me try to mark it as such:
> 
> #syz undup

#syz fix: rsi: fix a double free bug in rsi_91x_deinit()

Johan

^ permalink raw reply	[flat|nested] 4+ messages in thread
end of thread, other threads:[~2019-11-28 17:09 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-04-23 12:36 KASAN: invalid-free in rsi_91x_deinit syzbot
2019-11-19 13:38 ` Andrey Konovalov
2019-11-28 17:07   ` Johan Hovold
2019-11-28 17:09     ` Johan Hovold

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