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BUG: KASAN: use-after-free in __mutex_lock_common kernel/locking/mutex.c:1009 [inline]
BUG: KASAN: use-after-free in __mutex_lock+0x11a8/0x12b0 kernel/locking/mutex.c:1072
Read of size 8 at addr ffff8881ae5d0ec8 by task v4l_id/13599
CPU: 1 PID: 13599 Comm: v4l_id Not tainted 5.1.0-rc3+ #8
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0xca/0x13e lib/dump_stack.c:113
print_address_description+0x67/0x231 mm/kasan/report.c:187
kasan_report.cold+0x1a/0x35 mm/kasan/report.c:317
__mutex_lock_common kernel/locking/mutex.c:1009 [inline]
__mutex_lock+0x11a8/0x12b0 kernel/locking/mutex.c:1072
__video_do_ioctl+0x5cd/0xb40 drivers/media/v4l2-core/v4l2-ioctl.c:2842
video_usercopy+0x449/0xf00 drivers/media/v4l2-core/v4l2-ioctl.c:3056
v4l2_ioctl+0x13e/0x1a0 drivers/media/v4l2-core/v4l2-dev.c:364
vfs_ioctl fs/ioctl.c:46 [inline]
file_ioctl fs/ioctl.c:509 [inline]
do_vfs_ioctl+0xce8/0x12f0 fs/ioctl.c:696
ksys_ioctl+0x9b/0xc0 fs/ioctl.c:713
__do_sys_ioctl fs/ioctl.c:720 [inline]
__se_sys_ioctl fs/ioctl.c:718 [inline]
__x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:718
do_syscall_64+0xbd/0x500 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f54b4a36347
Code: 90 90 90 48 8b 05 f1 fa 2a 00 64 c7 00 26 00 00 00 48 c7 c0 ff ff ff ff c3 90 90 90 90 90 90 90 90 90 90 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d c1 fa 2a 00 31 d2 48 29 c2 64
RSP: 002b:00007fff91e9ec28 EFLAGS: 00000206 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f54b4a36347
RDX: 00007fff91e9ec30 RSI: 0000000080685600 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000400884
R13: 00007fff91e9ed80 R14: 0000000000000000 R15: 0000000000000000
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
slab_post_alloc_hook mm/slab.h:437 [inline]
slab_alloc_node mm/slub.c:2756 [inline]
__kmalloc_node_track_caller+0xee/0x320 mm/slub.c:4372
alloc_dr drivers/base/devres.c:103 [inline]
devm_kmalloc+0x87/0x190 drivers/base/devres.c:793
devm_kzalloc include/linux/device.h:679 [inline]
usb_raremono_probe+0x2f/0x230 drivers/media/radio/radio-raremono.c:298
usb_probe_interface+0x30d/0x7b0 drivers/usb/core/driver.c:361
really_probe+0x296/0x680 drivers/base/dd.c:509
driver_probe_device+0xf9/0x200 drivers/base/dd.c:671
__device_attach_driver+0x1c4/0x230 drivers/base/dd.c:778
bus_for_each_drv+0x15e/0x1e0 drivers/base/bus.c:454
__device_attach+0x21e/0x360 drivers/base/dd.c:844
bus_probe_device+0x1ec/0x2a0 drivers/base/bus.c:514
device_add+0xaf4/0x1700 drivers/base/core.c:2106
usb_set_configuration+0xdf2/0x1670 drivers/usb/core/message.c:2023
generic_probe+0x9d/0xd5 drivers/usb/core/generic.c:210
usb_probe_device+0xa8/0x110 drivers/usb/core/driver.c:266
really_probe+0x296/0x680 drivers/base/dd.c:509
driver_probe_device+0xf9/0x200 drivers/base/dd.c:671
__device_attach_driver+0x1c4/0x230 drivers/base/dd.c:778
bus_for_each_drv+0x15e/0x1e0 drivers/base/bus.c:454
__device_attach+0x21e/0x360 drivers/base/dd.c:844
bus_probe_device+0x1ec/0x2a0 drivers/base/bus.c:514
device_add+0xaf4/0x1700 drivers/base/core.c:2106
usb_new_device.cold+0x8b8/0x1030 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+0x1ac9/0x35a0 drivers/usb/core/hub.c:5432
process_one_work+0x90a/0x1580 kernel/workqueue.c:2269
worker_thread+0x96/0xe20 kernel/workqueue.c:2415
kthread+0x30e/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 mm/slub.c:1456 [inline]
slab_free mm/slub.c:3003 [inline]
kfree+0xd7/0x290 mm/slub.c:3958
release_nodes+0x4a7/0x920 drivers/base/devres.c:508
devres_release_all+0x74/0xc3 drivers/base/devres.c:529
__device_release_driver drivers/base/dd.c:1086 [inline]
device_release_driver_internal+0x235/0x4f0 drivers/base/dd.c:1113
bus_remove_device+0x2ee/0x4c0 drivers/base/bus.c:556
device_del+0x462/0xb90 drivers/base/core.c:2269
usb_disable_device+0x211/0x690 drivers/usb/core/message.c:1237
usb_disconnect+0x284/0x840 drivers/usb/core/hub.c:2197
hub_port_connect drivers/usb/core/hub.c:4940 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5204 [inline]
port_event drivers/usb/core/hub.c:5350 [inline]
hub_event+0x13f8/0x35a0 drivers/usb/core/hub.c:5432
process_one_work+0x90a/0x1580 kernel/workqueue.c:2269
process_scheduled_works kernel/workqueue.c:2331 [inline]
worker_thread+0x7ab/0xe20 kernel/workqueue.c:2417
kthread+0x30e/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 ffff8881ae5d0880
which belongs to the cache kmalloc-2k of size 2048
The buggy address is located 1608 bytes inside of
2048-byte region [ffff8881ae5d0880, ffff8881ae5d1080)
The buggy address belongs to the page:
page:ffffea0006b97400 count:1 mapcount:0 mapping:ffff8881dac02800 index:0x0 compound_mapcount: 0
flags: 0x200000000010200(slab|head)
raw: 0200000000010200 0000000000000000 0000000400000001 ffff8881dac02800
raw: 0000000000000000 00000000000f000f 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
Memory state around the buggy address:
ffff8881ae5d0d80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff8881ae5d0e00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff8881ae5d0e80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff8881ae5d0f00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff8881ae5d0f80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
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