==================================================================
BUG: KASAN: use-after-free in __list_del_entry_valid+0xa6/0x120 lib/list_debug.c:62
Read of size 8 at addr ffff8881148eec70 by task kworker/0:5/411
CPU: 0 PID: 411 Comm: kworker/0:5 Not tainted 5.15.94-syzkaller-03204-g5448b2fda85f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
Workqueue: events linkwatch_event
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x151/0x1b7 lib/dump_stack.c:106
print_address_description+0x87/0x3b0 mm/kasan/report.c:248
__kasan_report mm/kasan/report.c:427 [inline]
kasan_report+0x179/0x1c0 mm/kasan/report.c:444
__asan_report_load8_noabort+0x14/0x20 mm/kasan/report_generic.c:309
__list_del_entry_valid+0xa6/0x120 lib/list_debug.c:62
__list_del_entry include/linux/list.h:132 [inline]
list_del_init include/linux/list.h:204 [inline]
process_one_work+0x458/0xc10 kernel/workqueue.c:2257
worker_thread+0xad5/0x12a0 kernel/workqueue.c:2460
kthread+0x421/0x510 kernel/kthread.c:319
ret_from_fork+0x1f/0x30 :298
Allocated by task 380:
kasan_save_stack mm/kasan/common.c:38 [inline]
kasan_set_track mm/kasan/common.c:45 [inline]
set_alloc_info mm/kasan/common.c:433 [inline]
____kasan_kmalloc+0xdb/0x110 mm/kasan/common.c:512
__kasan_kmalloc+0x9/0x10 mm/kasan/common.c:521
kasan_kmalloc include/linux/kasan.h:227 [inline]
__kmalloc+0x13a/0x270 mm/slub.c:4425
__kmalloc_node include/linux/slab.h:474 [inline]
kmalloc_node include/linux/slab.h:631 [inline]
kvmalloc_node+0x82/0x130 mm/util.c:623
kvmalloc include/linux/mm.h:851 [inline]
kvzalloc include/linux/mm.h:859 [inline]
alloc_netdev_mqs+0x8c/0xc90 net/core/dev.c:10828
alloc_etherdev_mqs+0x33/0x40 net/ethernet/eth.c:393
usbnet_probe+0x19e/0x2670 drivers/net/usb/usbnet.c:1694
usb_probe_interface+0x5b6/0xa90 drivers/usb/core/driver.c:396
really_probe+0x28d/0x970 drivers/base/dd.c:595
__driver_probe_device+0x1bb/0x290 drivers/base/dd.c:750
driver_probe_device+0x54/0x3d0 drivers/base/dd.c:780
__device_attach_driver+0x2c5/0x470 drivers/base/dd.c:902
bus_for_each_drv+0x183/0x200 drivers/base/bus.c:427
__device_attach+0x312/0x510 drivers/base/dd.c:974
device_initial_probe+0x1a/0x20 drivers/base/dd.c:1023
bus_probe_device+0xbe/0x1e0 drivers/base/bus.c:487
device_add+0xb80/0xf30 drivers/base/core.c:3404
usb_set_configuration+0x190f/0x1e80 drivers/usb/core/message.c:2170
usb_generic_driver_probe+0x8b/0x150 drivers/usb/core/generic.c:238
usb_probe_device+0x144/0x260 drivers/usb/core/driver.c:293
really_probe+0x28d/0x970 drivers/base/dd.c:595
__driver_probe_device+0x1bb/0x290 drivers/base/dd.c:750
driver_probe_device+0x54/0x3d0 drivers/base/dd.c:780
__device_attach_driver+0x2c5/0x470 drivers/base/dd.c:902
bus_for_each_drv+0x183/0x200 drivers/base/bus.c:427
__device_attach+0x312/0x510 drivers/base/dd.c:974
device_initial_probe+0x1a/0x20 drivers/base/dd.c:1023
bus_probe_device+0xbe/0x1e0 drivers/base/bus.c:487
device_add+0xb80/0xf30 drivers/base/core.c:3404
usb_new_device+0x1034/0x1bf0 drivers/usb/core/hub.c:2575
hub_port_connect drivers/usb/core/hub.c:5417 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5561 [inline]
port_event drivers/usb/core/hub.c:5711 [inline]
hub_event+0x2da9/0x4a80 drivers/usb/core/hub.c:5793
process_one_work+0x6bb/0xc10 kernel/workqueue.c:2313
worker_thread+0xad5/0x12a0 kernel/workqueue.c:2460
kthread+0x421/0x510 kernel/kthread.c:319
ret_from_fork+0x1f/0x30 :298
Freed by task 380:
kasan_save_stack mm/kasan/common.c:38 [inline]
kasan_set_track+0x4b/0x70 mm/kasan/common.c:45
kasan_set_free_info+0x23/0x40 mm/kasan/generic.c:370
____kasan_slab_free+0x126/0x160 mm/kasan/common.c:365
__kasan_slab_free+0x11/0x20 mm/kasan/common.c:373
kasan_slab_free include/linux/kasan.h:193 [inline]
slab_free_hook mm/slub.c:1723 [inline]
slab_free_freelist_hook+0xbd/0x190 mm/slub.c:1749
slab_free mm/slub.c:3517 [inline]
kfree+0xc8/0x220 mm/slub.c:4577
kvfree+0x35/0x40 mm/util.c:658
netdev_freemem+0x3f/0x60 net/core/dev.c:10782
netdev_release+0x7f/0xb0 net/core/net-sysfs.c:1903
device_release+0x95/0x1c0
kobject_cleanup lib/kobject.c:705 [inline]
kobject_release lib/kobject.c:736 [inline]
kref_put include/linux/kref.h:65 [inline]
kobject_put+0x178/0x260 lib/kobject.c:753
put_device+0x1f/0x30 drivers/base/core.c:3511
free_netdev+0x34f/0x440 net/core/dev.c:10968
usbnet_disconnect+0x245/0x390 drivers/net/usb/usbnet.c:1633
usb_unbind_interface+0x1fa/0x8c0 drivers/usb/core/driver.c:458
__device_release_driver drivers/base/dd.c:1224 [inline]
device_release_driver_internal+0x50b/0x7d0 drivers/base/dd.c:1257
device_release_driver+0x19/0x20 drivers/base/dd.c:1280
bus_remove_device+0x2f8/0x360 drivers/base/bus.c:529
device_del+0x663/0xe90 drivers/base/core.c:3591
usb_disable_device+0x380/0x720 drivers/usb/core/message.c:1419
usb_disconnect+0x32a/0x890 drivers/usb/core/hub.c:2232
hub_port_connect drivers/usb/core/hub.c:5256 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5561 [inline]
port_event drivers/usb/core/hub.c:5711 [inline]
hub_event+0x1ccf/0x4a80 drivers/usb/core/hub.c:5793
process_one_work+0x6bb/0xc10 kernel/workqueue.c:2313
process_scheduled_works kernel/workqueue.c:2376 [inline]
worker_thread+0xe02/0x12a0 kernel/workqueue.c:2462
kthread+0x421/0x510 kernel/kthread.c:319
ret_from_fork+0x1f/0x30 :298
Last potentially related work creation:
kasan_save_stack+0x3b/0x60 mm/kasan/common.c:38
__kasan_record_aux_stack+0xd3/0xf0 mm/kasan/generic.c:348
kasan_record_aux_stack_noalloc+0xb/0x10 mm/kasan/generic.c:358
insert_work+0x56/0x320 kernel/workqueue.c:1369
__queue_work+0x923/0xcd0 kernel/workqueue.c:1535
queue_work_on+0x105/0x170 kernel/workqueue.c:1562
usbnet_link_change+0xeb/0x100
usbnet_probe+0x1c5a/0x2670 drivers/net/usb/usbnet.c:1835
usb_probe_interface+0x5b6/0xa90 drivers/usb/core/driver.c:396
really_probe+0x28d/0x970 drivers/base/dd.c:595
__driver_probe_device+0x1bb/0x290 drivers/base/dd.c:750
driver_probe_device+0x54/0x3d0 drivers/base/dd.c:780
__device_attach_driver+0x2c5/0x470 drivers/base/dd.c:902
bus_for_each_drv+0x183/0x200 drivers/base/bus.c:427
__device_attach+0x312/0x510 drivers/base/dd.c:974
device_initial_probe+0x1a/0x20 drivers/base/dd.c:1023
bus_probe_device+0xbe/0x1e0 drivers/base/bus.c:487
device_add+0xb80/0xf30 drivers/base/core.c:3404
usb_set_configuration+0x190f/0x1e80 drivers/usb/core/message.c:2170
usb_generic_driver_probe+0x8b/0x150 drivers/usb/core/generic.c:238
usb_probe_device+0x144/0x260 drivers/usb/core/driver.c:293
really_probe+0x28d/0x970 drivers/base/dd.c:595
__driver_probe_device+0x1bb/0x290 drivers/base/dd.c:750
driver_probe_device+0x54/0x3d0 drivers/base/dd.c:780
__device_attach_driver+0x2c5/0x470 drivers/base/dd.c:902
bus_for_each_drv+0x183/0x200 drivers/base/bus.c:427
__device_attach+0x312/0x510 drivers/base/dd.c:974
device_initial_probe+0x1a/0x20 drivers/base/dd.c:1023
bus_probe_device+0xbe/0x1e0 drivers/base/bus.c:487
device_add+0xb80/0xf30 drivers/base/core.c:3404
usb_new_device+0x1034/0x1bf0 drivers/usb/core/hub.c:2575
hub_port_connect drivers/usb/core/hub.c:5417 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5561 [inline]
port_event drivers/usb/core/hub.c:5711 [inline]
hub_event+0x2da9/0x4a80 drivers/usb/core/hub.c:5793
process_one_work+0x6bb/0xc10 kernel/workqueue.c:2313
worker_thread+0xad5/0x12a0 kernel/workqueue.c:2460
kthread+0x421/0x510 kernel/kthread.c:319
ret_from_fork+0x1f/0x30 :298
The buggy address belongs to the object at ffff8881148ee000
which belongs to the cache kmalloc-4k of size 4096
The buggy address is located 3184 bytes inside of
4096-byte region [ffff8881148ee000, ffff8881148ef000)
The buggy address belongs to the page:
page:ffffea0004523a00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1148e8
head:ffffea0004523a00 order:3 compound_mapcount:0 compound_pincount:0
flags: 0x4000000000010200(slab|head|zone=1)
raw: 4000000000010200 dead000000000100 dead000000000122 ffff888100043380
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 110, ts 3789384302, free_ts 0
set_page_owner include/linux/page_owner.h:33 [inline]
post_alloc_hook+0x1a3/0x1b0 mm/page_alloc.c:2502
prep_new_page mm/page_alloc.c:2508 [inline]
get_page_from_freelist+0x2c14/0x2cf0 mm/page_alloc.c:4291
__alloc_pages+0x386/0x7b0 mm/page_alloc.c:5569
allocate_slab mm/slub.c:1930 [inline]
new_slab+0x92/0x490 mm/slub.c:1993
___slab_alloc+0x39e/0x830 mm/slub.c:3026
__slab_alloc+0x4a/0x90 mm/slub.c:3113
slab_alloc_node mm/slub.c:3204 [inline]
slab_alloc mm/slub.c:3246 [inline]
kmem_cache_alloc_trace+0x142/0x210 mm/slub.c:3263
kmalloc include/linux/slab.h:608 [inline]
kzalloc include/linux/slab.h:738 [inline]
uevent_show+0x160/0x310 drivers/base/core.c:2398
dev_attr_show+0x56/0xd0 drivers/base/core.c:2105
sysfs_kf_seq_show+0x265/0x3e0 fs/sysfs/file.c:61
kernfs_seq_show+0x119/0x160 fs/kernfs/file.c:168
seq_read_iter+0x430/0xd00 fs/seq_file.c:230
kernfs_fop_read_iter+0x145/0x470 fs/kernfs/file.c:241
call_read_iter include/linux/fs.h:2151 [inline]
new_sync_read fs/read_write.c:404 [inline]
vfs_read+0xa7e/0xd40 fs/read_write.c:485
ksys_read+0x199/0x2c0 fs/read_write.c:623
__do_sys_read fs/read_write.c:633 [inline]
__se_sys_read fs/read_write.c:631 [inline]
__x64_sys_read+0x7b/0x90 fs/read_write.c:631
page_owner free stack trace missing
Memory state around the buggy address:
ffff8881148eeb00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff8881148eeb80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff8881148eec00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff8881148eec80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff8881148eed00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
usb 4-1: USB disconnect, device number 5
usb 4-1: new full-speed USB device number 6 using dummy_hcd
usb 4-1: config 1 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 10
usb 4-1: config 1 interface 0 altsetting 0 endpoint 0x81 has invalid maxpacket 1024, setting to 64
usb 4-1: config 1 interface 1 altsetting 1 endpoint 0x82 has invalid maxpacket 512, setting to 64
usb 4-1: config 1 interface 1 altsetting 1 endpoint 0x3 has invalid maxpacket 1023, setting to 64
usb 4-1: New USB device found, idVendor=0525, idProduct=a4a1, bcdDevice= 0.40
usb 4-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 4-1: Product: syz
usb 4-1: Manufacturer: syz
usb 4-1: SerialNumber: syz