================================================================== BUG: KASAN: use-after-free in __list_del_entry_valid+0xa6/0x120 lib/list_debug.c:62 Read of size 8 at addr ffff888105dccc68 by task kworker/1:32/1290 CPU: 1 PID: 1290 Comm: kworker/1:32 Not tainted 5.10.209-syzkaller-00002-g4e1bc8d8e8ae #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Workqueue: events linkwatch_event Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack_lvl+0x1e2/0x24b lib/dump_stack.c:118 print_address_description+0x81/0x3b0 mm/kasan/report.c:248 __kasan_report mm/kasan/report.c:435 [inline] kasan_report+0x179/0x1c0 mm/kasan/report.c:452 __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+0x43f/0xbd0 kernel/workqueue.c:2245 worker_thread+0xaea/0x1510 kernel/workqueue.c:2447 kthread+0x34b/0x3d0 kernel/kthread.c:313 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:299 Allocated by task 1279: 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:430 [inline] ____kasan_kmalloc+0xdb/0x110 mm/kasan/common.c:509 __kasan_kmalloc+0x9/0x10 mm/kasan/common.c:518 kasan_kmalloc include/linux/kasan.h:254 [inline] __kmalloc+0x1aa/0x330 mm/slub.c:4033 __kmalloc_node include/linux/slab.h:418 [inline] kmalloc_node include/linux/slab.h:575 [inline] kvmalloc_node+0x82/0x130 mm/util.c:612 kvmalloc include/linux/mm.h:822 [inline] kvzalloc include/linux/mm.h:830 [inline] alloc_netdev_mqs+0x8e/0xcd0 net/core/dev.c:10506 alloc_etherdev_mqs+0x33/0x40 net/ethernet/eth.c:398 usbnet_probe+0x1ff/0x2860 drivers/net/usb/usbnet.c:1662 usb_probe_interface+0x5b6/0xa90 drivers/usb/core/driver.c:397 really_probe+0x3eb/0xaf0 drivers/base/dd.c:562 driver_probe_device+0xfd/0x260 drivers/base/dd.c:752 __device_attach_driver+0x29b/0x410 drivers/base/dd.c:863 bus_for_each_drv+0x183/0x200 drivers/base/bus.c:431 __device_attach+0x30a/0x500 drivers/base/dd.c:932 device_initial_probe+0x1a/0x20 drivers/base/dd.c:981 bus_probe_device+0xbe/0x1e0 drivers/base/bus.c:491 device_add+0x889/0xbc0 drivers/base/core.c:3255 usb_set_configuration+0x19a5/0x1f30 drivers/usb/core/message.c:2160 usb_generic_driver_probe+0x8b/0x150 drivers/usb/core/generic.c:238 usb_probe_device+0x144/0x260 drivers/usb/core/driver.c:294 really_probe+0x3eb/0xaf0 drivers/base/dd.c:562 driver_probe_device+0xfd/0x260 drivers/base/dd.c:752 __device_attach_driver+0x29b/0x410 drivers/base/dd.c:863 bus_for_each_drv+0x183/0x200 drivers/base/bus.c:431 __device_attach+0x30a/0x500 drivers/base/dd.c:932 device_initial_probe+0x1a/0x20 drivers/base/dd.c:981 bus_probe_device+0xbe/0x1e0 drivers/base/bus.c:491 device_add+0x889/0xbc0 drivers/base/core.c:3255 usb_new_device+0xbbf/0x1750 drivers/usb/core/hub.c:2588 hub_port_connect drivers/usb/core/hub.c:5429 [inline] hub_port_connect_change drivers/usb/core/hub.c:5569 [inline] port_event drivers/usb/core/hub.c:5719 [inline] hub_event+0x2d3b/0x47c0 drivers/usb/core/hub.c:5801 process_one_work+0x6dc/0xbd0 kernel/workqueue.c:2301 worker_thread+0xaea/0x1510 kernel/workqueue.c:2447 kthread+0x34b/0x3d0 kernel/kthread.c:313 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:299 Freed by task 5548: 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+0x121/0x160 mm/kasan/common.c:362 __kasan_slab_free+0x11/0x20 mm/kasan/common.c:370 kasan_slab_free include/linux/kasan.h:220 [inline] slab_free_hook mm/slub.c:1595 [inline] slab_free_freelist_hook+0xc0/0x190 mm/slub.c:1621 slab_free mm/slub.c:3203 [inline] kfree+0xc3/0x270 mm/slub.c:4191 kvfree+0x35/0x40 mm/util.c:647 netdev_freemem+0x3f/0x60 net/core/dev.c:10460 netdev_release+0x7f/0xb0 net/core/net-sysfs.c:1886 device_release+0x95/0x1c0 kobject_cleanup lib/kobject.c:713 [inline] kobject_release lib/kobject.c:744 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x178/0x260 lib/kobject.c:761 put_device+0x1f/0x30 drivers/base/core.c:3354 free_netdev+0x384/0x470 net/core/dev.c:10637 usbnet_disconnect+0x242/0x3a0 drivers/net/usb/usbnet.c:1601 usb_unbind_interface+0x1fa/0x8c0 drivers/usb/core/driver.c:459 device_release_driver_internal+0x506/0x7c0 drivers/base/dd.c:1221 device_release_driver+0x19/0x20 drivers/base/dd.c:1244 bus_remove_device+0x2f8/0x360 drivers/base/bus.c:533 device_del+0x68b/0xf00 drivers/base/core.c:3434 usb_disable_device+0x380/0x720 drivers/usb/core/message.c:1411 usb_disconnect+0x32a/0x890 drivers/usb/core/hub.c:2252 hub_port_connect drivers/usb/core/hub.c:5268 [inline] hub_port_connect_change drivers/usb/core/hub.c:5569 [inline] port_event drivers/usb/core/hub.c:5719 [inline] hub_event+0x1e73/0x47c0 drivers/usb/core/hub.c:5801 process_one_work+0x6dc/0xbd0 kernel/workqueue.c:2301 worker_thread+0xaea/0x1510 kernel/workqueue.c:2447 kthread+0x34b/0x3d0 kernel/kthread.c:313 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:299 Last potentially related work creation: kasan_save_stack+0x3b/0x60 mm/kasan/common.c:38 __kasan_record_aux_stack+0xd3/0x100 mm/kasan/generic.c:348 kasan_record_aux_stack_noalloc+0xb/0x10 mm/kasan/generic.c:358 insert_work+0x56/0x310 kernel/workqueue.c:1352 __queue_work+0x970/0xd10 kernel/workqueue.c:1518 queue_work_on+0x105/0x160 kernel/workqueue.c:1545 usbnet_link_change+0xeb/0x100 usbnet_probe+0x1dff/0x2860 drivers/net/usb/usbnet.c:1808 usb_probe_interface+0x5b6/0xa90 drivers/usb/core/driver.c:397 really_probe+0x3eb/0xaf0 drivers/base/dd.c:562 driver_probe_device+0xfd/0x260 drivers/base/dd.c:752 __device_attach_driver+0x29b/0x410 drivers/base/dd.c:863 bus_for_each_drv+0x183/0x200 drivers/base/bus.c:431 __device_attach+0x30a/0x500 drivers/base/dd.c:932 device_initial_probe+0x1a/0x20 drivers/base/dd.c:981 bus_probe_device+0xbe/0x1e0 drivers/base/bus.c:491 device_add+0x889/0xbc0 drivers/base/core.c:3255 usb_set_configuration+0x19a5/0x1f30 drivers/usb/core/message.c:2160 usb_generic_driver_probe+0x8b/0x150 drivers/usb/core/generic.c:238 usb_probe_device+0x144/0x260 drivers/usb/core/driver.c:294 really_probe+0x3eb/0xaf0 drivers/base/dd.c:562 driver_probe_device+0xfd/0x260 drivers/base/dd.c:752 __device_attach_driver+0x29b/0x410 drivers/base/dd.c:863 bus_for_each_drv+0x183/0x200 drivers/base/bus.c:431 __device_attach+0x30a/0x500 drivers/base/dd.c:932 device_initial_probe+0x1a/0x20 drivers/base/dd.c:981 bus_probe_device+0xbe/0x1e0 drivers/base/bus.c:491 device_add+0x889/0xbc0 drivers/base/core.c:3255 usb_new_device+0xbbf/0x1750 drivers/usb/core/hub.c:2588 hub_port_connect drivers/usb/core/hub.c:5429 [inline] hub_port_connect_change drivers/usb/core/hub.c:5569 [inline] port_event drivers/usb/core/hub.c:5719 [inline] hub_event+0x2d3b/0x47c0 drivers/usb/core/hub.c:5801 process_one_work+0x6dc/0xbd0 kernel/workqueue.c:2301 worker_thread+0xaea/0x1510 kernel/workqueue.c:2447 kthread+0x34b/0x3d0 kernel/kthread.c:313 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:299 The buggy address belongs to the object at ffff888105dcc000 which belongs to the cache kmalloc-4k of size 4096 The buggy address is located 3176 bytes inside of 4096-byte region [ffff888105dcc000, ffff888105dcd000) The buggy address belongs to the page: page:ffffea0004177200 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105dc8 head:ffffea0004177200 order:3 compound_mapcount:0 compound_pincount:0 flags: 0x4000000000010200(slab|head) raw: 4000000000010200 dead000000000100 dead000000000122 ffff888100042c00 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 1, ts 1136815746, free_ts 0 set_page_owner include/linux/page_owner.h:35 [inline] post_alloc_hook mm/page_alloc.c:2456 [inline] prep_new_page+0x166/0x180 mm/page_alloc.c:2462 get_page_from_freelist+0x2d8c/0x2f30 mm/page_alloc.c:4254 __alloc_pages_nodemask+0x435/0xaf0 mm/page_alloc.c:5346 allocate_slab mm/slub.c:1808 [inline] new_slab+0x80/0x400 mm/slub.c:1869 new_slab_objects mm/slub.c:2627 [inline] ___slab_alloc+0x302/0x4b0 mm/slub.c:2791 __slab_alloc+0x63/0xa0 mm/slub.c:2831 slab_alloc_node mm/slub.c:2913 [inline] slab_alloc mm/slub.c:2955 [inline] kmem_cache_alloc_trace+0x1bd/0x2e0 mm/slub.c:2972 kmalloc include/linux/slab.h:552 [inline] kzalloc include/linux/slab.h:664 [inline] kobject_uevent_env+0x269/0x700 lib/kobject_uevent.c:524 kobject_uevent+0x1f/0x30 lib/kobject_uevent.c:642 device_add+0x791/0xbc0 drivers/base/core.c:3236 wakeup_source_device_create drivers/base/power/wakeup_stats.c:161 [inline] wakeup_source_sysfs_add+0x1c1/0x290 drivers/base/power/wakeup_stats.c:181 wakeup_source_register+0x17b/0x3c0 drivers/base/power/wakeup.c:231 acpi_add_pm_notifier+0x15e/0x260 drivers/acpi/device_pm.c:505 pci_acpi_add_pm_notifier drivers/pci/pci-acpi.c:882 [inline] pci_acpi_setup+0x450/0x910 drivers/pci/pci-acpi.c:1255 acpi_platform_notify+0x34b/0x3e0 drivers/acpi/glue.c:367 device_platform_notify drivers/base/core.c:1940 [inline] device_add+0x3f9/0xbc0 drivers/base/core.c:3195 page_owner free stack trace missing Memory state around the buggy address: ffff888105dccb00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888105dccb80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff888105dccc00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff888105dccc80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888105dccd00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ================================================================== usb 1-1: new high-speed USB device number 95 using dummy_hcd usb 1-1: New USB device found, idVendor=0cf3, idProduct=9271, bcdDevice= 1.08 usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 usb 1-1: Product: syz usb 1-1: Manufacturer: syz usb 1-1: SerialNumber: syz hid-generic 0000:0000:0000.0058: unknown main item tag 0x0 hid-generic 0000:0000:0000.0058: unknown main item tag 0x0 hid-generic 0000:0000:0000.0058: unknown main item tag 0x0 hid-generic 0000:0000:0000.0058: unknown main item tag 0x0 hid-generic 0000:0000:0000.0058: unknown main item tag 0x0 hid-generic 0000:0000:0000.0058: unknown main item tag 0x0 hid-generic 0000:0000:0000.0058: unknown main item tag 0x0 hid-generic 0000:0000:0000.0058: unknown main item tag 0x0 hid-generic 0000:0000:0000.0058: unknown main item tag 0x0 hid-generic 0000:0000:0000.0058: unknown main item tag 0x0 hid-generic 0000:0000:0000.0058: unknown main item tag 0x0 hid-generic 0000:0000:0000.0058: unknown main item tag 0x0 hid-generic 0000:0000:0000.0058: unknown main item tag 0x0 hid-generic 0000:0000:0000.0058: unknown main item tag 0x0 hid-generic 0000:0000:0000.0058: unknown main item tag 0x0 hid-generic 0000:0000:0000.0058: unknown main item tag 0x0 hid-generic 0000:0000:0000.0058: unknown main item tag 0x0 hid-generic 0000:0000:0000.0058: unknown main item tag 0x0 hid-generic 0000:0000:0000.0058: unknown main item tag 0x0 hid-generic 0000:0000:0000.0058: unknown main item tag 0x0 hid-generic 0000:0000:0000.0058: unknown main item tag 0x0 hid-generic 0000:0000:0000.0058: unknown main item tag 0x0 hid-generic 0000:0000:0000.0058: unknown main item tag 0x0 hid-generic 0000:0000:0000.0058: unknown main item tag 0x0 hid-generic 0000:0000:0000.0058: unknown main item tag 0x0 hid-generic 0000:0000:0000.0058: unknown main item tag 0x0 hid-generic 0000:0000:0000.0058: unknown main item tag 0x0 hid-generic 0000:0000:0000.0058: unknown main item tag 0x0 hid-generic 0000:0000:0000.0058: unknown main item tag 0x0 hid-generic 0000:0000:0000.0058: unknown main item tag 0x0 hid-generic 0000:0000:0000.0058: unknown main item tag 0x0 hid-generic 0000:0000:0000.0058: unknown main item tag 0x0 hid-generic 0000:0000:0000.0058: hidraw0: HID v0.00 Device [syz0] on syz0 usb 2-1: new high-speed USB device number 104 using dummy_hcd usb 2-1: config 0 contains an unexpected descriptor of type 0x1, skipping usb 2-1: config 0 has an invalid descriptor of length 127, skipping remainder of the config usb 2-1: config 0 has 0 interfaces, different from the descriptor's value: 1 usb 2-1: New USB device found, idVendor=056a, idProduct=00b4, bcdDevice= 0.00 usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 usb 2-1: config 0 descriptor?? usb 1-1: USB disconnect, device number 96 usb 4-1: new high-speed USB device number 79 using dummy_hcd usb 4-1: too many configurations: 65, using maximum allowed: 8 usb 4-1: config 250 has an invalid descriptor of length 0, skipping remainder of the config usb 4-1: config 250 has 0 interfaces, different from the descriptor's value: 1 usb 4-1: config 250 has an invalid descriptor of length 0, skipping remainder of the config usb 4-1: config 250 has 0 interfaces, different from the descriptor's value: 1 usb 4-1: config 250 has an invalid descriptor of length 0, skipping remainder of the config usb 4-1: config 250 has 0 interfaces, different from the descriptor's value: 1 usb 4-1: config 250 has an invalid descriptor of length 0, skipping remainder of the config usb 4-1: config 250 has 0 interfaces, different from the descriptor's value: 1 usb 4-1: config 250 has an invalid descriptor of length 0, skipping remainder of the config usb 4-1: config 250 has 0 interfaces, different from the descriptor's value: 1 usb 4-1: config 250 has an invalid descriptor of length 0, skipping remainder of the config usb 4-1: config 250 has 0 interfaces, different from the descriptor's value: 1 usb 4-1: config 250 has an invalid descriptor of length 0, skipping remainder of the config usb 4-1: config 250 has 0 interfaces, different from the descriptor's value: 1 usb 4-1: config 250 has an invalid descriptor of length 0, skipping remainder of the config usb 4-1: config 250 has 0 interfaces, different from the descriptor's value: 1 usb 4-1: New USB device found, idVendor=046d, idProduct=08c1, bcdDevice=ee.8d usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0