==================================================================
BUG: KASAN: use-after-free in instrument_atomic_read_write include/linux/instrumented.h:101 [inline]
BUG: KASAN: use-after-free in atomic64_try_cmpxchg_acquire include/asm-generic/atomic-instrumented.h:1515 [inline]
BUG: KASAN: use-after-free in atomic_long_try_cmpxchg_acquire include/asm-generic/atomic-long.h:443 [inline]
BUG: KASAN: use-after-free in __mutex_trylock_fast kernel/locking/mutex.c:173 [inline]
BUG: KASAN: use-after-free in mutex_lock+0x7f/0xe0 kernel/locking/mutex.c:298
Write of size 8 at addr ffff88810adb0440 by task udevd/299

CPU: 1 PID: 299 Comm: udevd Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2025
Call Trace:
 __dump_stack+0x21/0x24 lib/dump_stack.c:77
 dump_stack_lvl+0x169/0x1d8 lib/dump_stack.c:118
 print_address_description+0x7f/0x2c0 mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:435 [inline]
 kasan_report+0xe2/0x130 mm/kasan/report.c:452
 check_region_inline mm/kasan/generic.c:-1 [inline]
 kasan_check_range+0x280/0x290 mm/kasan/generic.c:189
 __kasan_check_write+0x14/0x20 mm/kasan/shadow.c:37
 instrument_atomic_read_write include/linux/instrumented.h:101 [inline]
 atomic64_try_cmpxchg_acquire include/asm-generic/atomic-instrumented.h:1515 [inline]
 atomic_long_try_cmpxchg_acquire include/asm-generic/atomic-long.h:443 [inline]
 __mutex_trylock_fast kernel/locking/mutex.c:173 [inline]
 mutex_lock+0x7f/0xe0 kernel/locking/mutex.c:298
 steam_input_close+0x90/0x170 drivers/hid/hid-steam.c:308
 input_close_device+0x26a/0x300 drivers/input/input.c:694
 evdev_close_device drivers/input/evdev.c:414 [inline]
 evdev_release+0x797/0x820 drivers/input/evdev.c:456
 __fput+0x2fb/0x770 fs/file_table.c:281
 ____fput+0x15/0x20 fs/file_table.c:314
 task_work_run+0x127/0x190 kernel/task_work.c:189
 tracehook_notify_resume include/linux/tracehook.h:188 [inline]
 exit_to_user_mode_loop+0xcb/0xe0 kernel/entry/common.c:172
 exit_to_user_mode_prepare+0x76/0xa0 kernel/entry/common.c:199
 syscall_exit_to_user_mode+0x1d/0x40 kernel/entry/common.c:274
 do_syscall_64+0x3d/0x40 arch/x86/entry/common.c:56
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fa30972a407
Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff
RSP: 002b:00007ffcadfaa170 EFLAGS: 00000202 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 00007fa30963c880 RCX: 00007fa30972a407
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000008
RBP: 00007fa30963c6e8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000002
R13: 00007ffcadfaa2ec R14: 00007ffcadfaa2e0 R15: 000055eaad767f50

Allocated by task 275:
 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 mm/kasan/common.c:509 [inline]
 __kasan_kmalloc+0xda/0x110 mm/kasan/common.c:518
 kasan_kmalloc include/linux/kasan.h:254 [inline]
 __kmalloc+0x1a7/0x330 mm/slub.c:4038
 kmalloc include/linux/slab.h:557 [inline]
 kzalloc include/linux/slab.h:664 [inline]
 fib6_info_alloc+0x34/0xe0 net/ipv6/ip6_fib.c:154
 ip6_route_info_create+0x4d2/0x1490 net/ipv6/route.c:3673
 addrconf_f6i_alloc+0x154/0x360 net/ipv6/route.c:4472
 ipv6_add_addr+0x40b/0xd40 net/ipv6/addrconf.c:1120
 inet6_addr_add+0x44c/0x950 net/ipv6/addrconf.c:3017
 inet6_rtm_newaddr+0x684/0x930 net/ipv6/addrconf.c:4961
 rtnetlink_rcv_msg+0x9db/0xb90 net/core/rtnetlink.c:5610
 netlink_rcv_skb+0x1e0/0x430 net/netlink/af_netlink.c:2503
 rtnetlink_rcv+0x1c/0x20 net/core/rtnetlink.c:5628
 netlink_unicast_kernel net/netlink/af_netlink.c:1314 [inline]
 netlink_unicast+0x876/0xa40 net/netlink/af_netlink.c:1340
 netlink_sendmsg+0x88d/0xb30 net/netlink/af_netlink.c:1914
 sock_sendmsg_nosec net/socket.c:652 [inline]
 __sock_sendmsg net/socket.c:664 [inline]
 __sys_sendto+0x41d/0x580 net/socket.c:2006
 __do_sys_sendto net/socket.c:2018 [inline]
 __se_sys_sendto net/socket.c:2014 [inline]
 __x64_sys_sendto+0xe5/0x100 net/socket.c:2014
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb

Freed by task 357:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track+0x4a/0x70 mm/kasan/common.c:45
 kasan_set_free_info+0x23/0x40 mm/kasan/generic.c:370
 ____kasan_slab_free+0x125/0x160 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:1600 [inline]
 slab_free_freelist_hook+0xc5/0x190 mm/slub.c:1626
 slab_free mm/slub.c:3208 [inline]
 kfree+0xc0/0x270 mm/slub.c:4196
 release_nodes+0x753/0x7d0 drivers/base/devres.c:524
 devres_release_all+0x7c/0xa0 drivers/base/devres.c:545
 __device_release_driver drivers/base/dd.c:1190 [inline]
 device_release_driver_internal+0x4cb/0x750 drivers/base/dd.c:1221
 device_release_driver+0x19/0x20 drivers/base/dd.c:1244
 bus_remove_device+0x2dd/0x340 drivers/base/bus.c:535
 device_del+0x696/0xed0 drivers/base/core.c:3452
 hid_remove_device drivers/hid/hid-core.c:2512 [inline]
 hid_destroy_device+0x6a/0x110 drivers/hid/hid-core.c:2531
 usbhid_disconnect+0x9f/0xc0 drivers/hid/usbhid/hid-core.c:1448
 usb_unbind_interface+0x212/0x8c0 drivers/usb/core/driver.c:459
 __device_release_driver drivers/base/dd.c:-1 [inline]
 device_release_driver_internal+0x4bc/0x750 drivers/base/dd.c:1221
 device_release_driver+0x19/0x20 drivers/base/dd.c:1244
 bus_remove_device+0x2dd/0x340 drivers/base/bus.c:535
 device_del+0x696/0xed0 drivers/base/core.c:3452
 usb_disable_device+0x3a8/0x750 drivers/usb/core/message.c:1411
 usb_disconnect+0x31e/0x850 drivers/usb/core/hub.c:2310
 hub_port_connect drivers/usb/core/hub.c:5338 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5639 [inline]
 port_event drivers/usb/core/hub.c:5805 [inline]
 hub_event+0x1a88/0x42c0 drivers/usb/core/hub.c:5887
 process_one_work+0x6e1/0xba0 kernel/workqueue.c:2301
 process_scheduled_works kernel/workqueue.c:2363 [inline]
 worker_thread+0xd56/0x13b0 kernel/workqueue.c:2449
 kthread+0x346/0x3d0 kernel/kthread.c:313
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298

Last potentially related work creation:
 kasan_save_stack+0x3a/0x60 mm/kasan/common.c:38
 __kasan_record_aux_stack+0xd2/0x100 mm/kasan/generic.c:348
 kasan_record_aux_stack_noalloc+0xb/0x10 mm/kasan/generic.c:358
 __call_rcu kernel/rcu/tree.c:2980 [inline]
 call_rcu+0x10e/0x1050 kernel/rcu/tree.c:3054
 fib6_info_release include/net/ip6_fib.h:346 [inline]
 fixup_permanent_addr net/ipv6/addrconf.c:3515 [inline]
 addrconf_permanent_addr+0x2fe/0x8c0 net/ipv6/addrconf.c:3543
 addrconf_notify+0x752/0xe90 net/ipv6/addrconf.c:3611
 notifier_call_chain kernel/notifier.c:83 [inline]
 raw_notifier_call_chain+0x90/0x100 kernel/notifier.c:410
 call_netdevice_notifiers_info net/core/dev.c:2054 [inline]
 call_netdevice_notifiers_extack net/core/dev.c:2066 [inline]
 call_netdevice_notifiers net/core/dev.c:2080 [inline]
 __dev_notify_flags+0x28f/0x500 net/core/dev.c:-1
 dev_change_flags+0xe8/0x1a0 net/core/dev.c:8610
 do_setlink+0xbb4/0x3ab0 net/core/rtnetlink.c:2732
 __rtnl_newlink net/core/rtnetlink.c:3410 [inline]
 rtnl_newlink+0x1292/0x1640 net/core/rtnetlink.c:3530
 rtnetlink_rcv_msg+0x9db/0xb90 net/core/rtnetlink.c:5610
 netlink_rcv_skb+0x1e0/0x430 net/netlink/af_netlink.c:2503
 rtnetlink_rcv+0x1c/0x20 net/core/rtnetlink.c:5628
 netlink_unicast_kernel net/netlink/af_netlink.c:1314 [inline]
 netlink_unicast+0x876/0xa40 net/netlink/af_netlink.c:1340
 netlink_sendmsg+0x88d/0xb30 net/netlink/af_netlink.c:1914
 sock_sendmsg_nosec net/socket.c:652 [inline]
 __sock_sendmsg net/socket.c:664 [inline]
 __sys_sendto+0x41d/0x580 net/socket.c:2006
 __do_sys_sendto net/socket.c:2018 [inline]
 __se_sys_sendto net/socket.c:2014 [inline]
 __x64_sys_sendto+0xe5/0x100 net/socket.c:2014
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb

Second to last potentially related work creation:
 kasan_save_stack+0x3a/0x60 mm/kasan/common.c:38
 __kasan_record_aux_stack+0xd2/0x100 mm/kasan/generic.c:348
 kasan_record_aux_stack_noalloc+0xb/0x10 mm/kasan/generic.c:358
 __call_rcu kernel/rcu/tree.c:2980 [inline]
 call_rcu+0x10e/0x1050 kernel/rcu/tree.c:3054
 blkg_release+0x23/0x30 block/blk-cgroup.c:114
 percpu_ref_put_many include/linux/percpu-refcount.h:322 [inline]
 percpu_ref_put include/linux/percpu-refcount.h:338 [inline]
 percpu_ref_call_confirm_rcu lib/percpu-refcount.c:163 [inline]
 percpu_ref_switch_to_atomic_rcu+0x5a9/0x5b0 lib/percpu-refcount.c:200
 rcu_do_batch+0x4df/0xa80 kernel/rcu/tree.c:2494
 rcu_core+0x55f/0xd60 kernel/rcu/tree.c:2735
 rcu_core_si+0x9/0x10 kernel/rcu/tree.c:2748
 __do_softirq+0x255/0x563 kernel/softirq.c:309

The buggy address belongs to the object at ffff88810adb0400
 which belongs to the cache kmalloc-512 of size 512
The buggy address is located 64 bytes inside of
 512-byte region [ffff88810adb0400, ffff88810adb0600)
The buggy address belongs to the page:
page:ffffea00042b6c00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10adb0
head:ffffea00042b6c00 order:2 compound_mapcount:0 compound_pincount:0
flags: 0x4000000000010200(slab|head)
raw: 4000000000010200 ffffea00042e5600 0000000300000003 ffff888100043080
raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 2, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1, ts 2656212463, 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+0x179/0x180 mm/page_alloc.c:2462
 get_page_from_freelist+0x2235/0x23d0 mm/page_alloc.c:4254
 __alloc_pages_nodemask+0x268/0x5f0 mm/page_alloc.c:5370
 alloc_slab_page mm/slub.c:-1 [inline]
 allocate_slab mm/slub.c:1813 [inline]
 new_slab+0x84/0x3f0 mm/slub.c:1874
 new_slab_objects mm/slub.c:2632 [inline]
 ___slab_alloc+0x2a6/0x450 mm/slub.c:2796
 __slab_alloc+0x63/0xa0 mm/slub.c:2836
 slab_alloc_node mm/slub.c:2918 [inline]
 slab_alloc mm/slub.c:2960 [inline]
 kmem_cache_alloc_trace+0x1b3/0x2e0 mm/slub.c:2977
 kmem_cache_alloc_node_trace include/linux/slab.h:440 [inline]
 kmalloc_node include/linux/slab.h:570 [inline]
 kzalloc_node include/linux/slab.h:675 [inline]
 blkg_alloc+0x6f/0x560 block/blk-cgroup.c:158
 blkcg_init_queue+0x2d/0x330 block/blk-cgroup.c:1167
 blk_alloc_queue+0x463/0x610 block/blk-core.c:575
 blk_mq_init_queue_data block/blk-mq.c:3155 [inline]
 blk_mq_init_queue+0x37/0xd0 block/blk-mq.c:3174
 scsi_mq_alloc_queue+0x42/0x140 drivers/scsi/scsi_lib.c:1900
 scsi_alloc_sdev+0x60d/0x920 drivers/scsi/scsi_scan.c:284
 scsi_probe_and_add_lun+0x196/0x33e0 drivers/scsi/scsi_scan.c:1098
 __scsi_scan_target+0x1d6/0xbc0 drivers/scsi/scsi_scan.c:1581
 scsi_scan_channel drivers/scsi/scsi_scan.c:1669 [inline]
 scsi_scan_host_selected+0x343/0x5f0 drivers/scsi/scsi_scan.c:1698
page_owner free stack trace missing

Memory state around the buggy address:
 ffff88810adb0300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88810adb0380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff88810adb0400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                           ^
 ffff88810adb0480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88810adb0500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
hid 0003:28DE:1102.0003: No HID_FEATURE_REPORT submitted -  nothing to read
hid 0003:28DE:1102.0003: No HID_FEATURE_REPORT submitted -  nothing to read
hid 0003:28DE:1102.0003: No HID_FEATURE_REPORT submitted -  nothing to read