xpad 4-1:179.65: xpad_irq_in - usb_submit_urb failed with result -19 xpad 4-1:179.65: xpad_irq_out - usb_submit_urb failed with result -19 ================================================================== BUG: KASAN: use-after-free in register_lock_class+0x8ff/0x9a0 kernel/locking/lockdep.c:1294 Read of size 1 at addr ffff8880229fc891 by task udevd/3028 CPU: 1 PID: 3028 Comm: udevd Not tainted 5.15.166-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106 print_address_description+0x63/0x3b0 mm/kasan/report.c:248 __kasan_report mm/kasan/report.c:434 [inline] kasan_report+0x16b/0x1c0 mm/kasan/report.c:451 register_lock_class+0x8ff/0x9a0 kernel/locking/lockdep.c:1294 __lock_acquire+0xd7/0x1ff0 kernel/locking/lockdep.c:4891 lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0xd1/0x120 kernel/locking/spinlock.c:162 __wake_up_common_lock kernel/sched/wait.c:137 [inline] __wake_up+0xf5/0x1c0 kernel/sched/wait.c:157 __usb_hcd_giveback_urb+0x3a8/0x530 drivers/usb/core/hcd.c:1677 dummy_timer+0x8ad/0x3200 drivers/usb/gadget/udc/dummy_hcd.c:1987 call_timer_fn+0x16d/0x560 kernel/time/timer.c:1451 expire_timers kernel/time/timer.c:1496 [inline] __run_timers+0x67c/0x890 kernel/time/timer.c:1767 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1780 handle_softirqs+0x3a7/0x930 kernel/softirq.c:558 __do_softirq kernel/softirq.c:592 [inline] invoke_softirq kernel/softirq.c:432 [inline] __irq_exit_rcu+0x157/0x240 kernel/softirq.c:641 irq_exit_rcu+0x5/0x20 kernel/softirq.c:653 sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1096 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:preempt_count_add+0x40/0x180 kernel/sched/core.c:5490 Code: 00 00 00 fc ff df 42 0f b6 04 38 84 c0 0f 85 e2 00 00 00 83 3d 30 14 2f 15 00 75 07 65 8b 05 2f 04 ab 7e 65 01 1d 28 04 ab 7e <48> c7 c0 c0 7f 86 96 48 c1 e8 03 42 0f b6 04 38 84 c0 0f 85 d9 00 RSP: 0018:ffffc90002d57740 EFLAGS: 00000282 RAX: 0000000080000000 RBX: 0000000000000001 RCX: ffffffff96867f03 RDX: ffff88807c928000 RSI: 00000000ffffffff RDI: 0000000000000001 RBP: 00000000ffffffff R08: ffffffff81db8013 R09: fffffbfff20e2219 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff888021237608 R14: ffff888021237698 R15: dffffc0000000000 __raw_spin_lock include/linux/spinlock_api_smp.h:141 [inline] _raw_spin_lock+0xe/0x40 kernel/locking/spinlock.c:154 spin_lock include/linux/spinlock.h:363 [inline] fast_dput+0x177/0x290 fs/dcache.c:768 dput+0xb7/0x1a0 fs/dcache.c:880 step_into+0x352/0xe90 fs/namei.c:1815 walk_component+0x359/0x610 fs/namei.c:1982 link_path_walk+0x642/0xd90 path_lookupat+0xa9/0x450 fs/namei.c:2454 filename_lookup+0x230/0x5c0 fs/namei.c:2484 user_path_at_empty+0x40/0x180 fs/namei.c:2883 do_readlinkat+0x114/0x3a0 fs/stat.c:442 __do_sys_readlink fs/stat.c:475 [inline] __se_sys_readlink fs/stat.c:472 [inline] __x64_sys_readlink+0x7b/0x90 fs/stat.c:472 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7fcb9b58ad47 Code: 73 01 c3 48 8b 0d e1 90 0d 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 59 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d b1 90 0d 00 f7 d8 64 89 01 48 RSP: 002b:00007fff8e8ec0f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000059 RAX: ffffffffffffffda RBX: 00007fff8e8ec108 RCX: 00007fcb9b58ad47 RDX: 0000000000000400 RSI: 00007fff8e8ec108 RDI: 00007fff8e8ec5e8 RBP: 0000000000000400 R08: 00005570be49ac24 R09: 0000000000000000 R10: 0000000000000812 R11: 0000000000000246 R12: 00007fff8e8ec5e8 R13: 00007fff8e8ec558 R14: 00005570be48f910 R15: 0000000000000000 Allocated by task 3622: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track mm/kasan/common.c:46 [inline] set_alloc_info mm/kasan/common.c:434 [inline] ____kasan_kmalloc+0xba/0xf0 mm/kasan/common.c:513 kasan_kmalloc include/linux/kasan.h:264 [inline] kmem_cache_alloc_trace+0x143/0x290 mm/slub.c:3247 kmalloc include/linux/slab.h:591 [inline] kzalloc include/linux/slab.h:721 [inline] xpad_probe+0x3eb/0x1b40 drivers/input/joystick/xpad.c:1786 usb_probe_interface+0x5c0/0xaf0 drivers/usb/core/driver.c:396 really_probe+0x24e/0xb60 drivers/base/dd.c:595 __driver_probe_device+0x1a2/0x3d0 drivers/base/dd.c:755 driver_probe_device+0x50/0x420 drivers/base/dd.c:785 __device_attach_driver+0x2b9/0x500 drivers/base/dd.c:907 bus_for_each_drv+0x183/0x200 drivers/base/bus.c:427 __device_attach+0x359/0x570 drivers/base/dd.c:979 bus_probe_device+0xba/0x1e0 drivers/base/bus.c:487 device_add+0xb48/0xfd0 drivers/base/core.c:3415 usb_set_configuration+0x19dd/0x2020 drivers/usb/core/message.c:2165 usb_generic_driver_probe+0x84/0x140 drivers/usb/core/generic.c:238 usb_probe_device+0x130/0x260 drivers/usb/core/driver.c:293 really_probe+0x24e/0xb60 drivers/base/dd.c:595 __driver_probe_device+0x1a2/0x3d0 drivers/base/dd.c:755 driver_probe_device+0x50/0x420 drivers/base/dd.c:785 __device_attach_driver+0x2b9/0x500 drivers/base/dd.c:907 bus_for_each_drv+0x183/0x200 drivers/base/bus.c:427 __device_attach+0x359/0x570 drivers/base/dd.c:979 bus_probe_device+0xba/0x1e0 drivers/base/bus.c:487 device_add+0xb48/0xfd0 drivers/base/core.c:3415 usb_new_device+0xc17/0x18e0 drivers/usb/core/hub.c:2593 hub_port_connect drivers/usb/core/hub.c:5455 [inline] hub_port_connect_change drivers/usb/core/hub.c:5595 [inline] port_event drivers/usb/core/hub.c:5741 [inline] hub_event+0x2cdf/0x54c0 drivers/usb/core/hub.c:5823 process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310 worker_thread+0xaca/0x1280 kernel/workqueue.c:2457 kthread+0x3f6/0x4f0 kernel/kthread.c:334 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287 Freed by task 7: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track+0x4b/0x80 mm/kasan/common.c:46 kasan_set_free_info+0x1f/0x40 mm/kasan/generic.c:360 ____kasan_slab_free+0xd8/0x120 mm/kasan/common.c:366 kasan_slab_free include/linux/kasan.h:230 [inline] slab_free_hook mm/slub.c:1705 [inline] slab_free_freelist_hook+0xdd/0x160 mm/slub.c:1731 slab_free mm/slub.c:3499 [inline] kfree+0xf1/0x270 mm/slub.c:4559 xpad_disconnect+0x355/0x480 drivers/input/joystick/xpad.c:1934 usb_unbind_interface+0x1cd/0x840 drivers/usb/core/driver.c:458 __device_release_driver drivers/base/dd.c:1229 [inline] device_release_driver_internal+0x50e/0x7f0 drivers/base/dd.c:1262 bus_remove_device+0x2e5/0x400 drivers/base/bus.c:529 device_del+0x6e2/0xbd0 drivers/base/core.c:3603 usb_disable_device+0x3b8/0x840 drivers/usb/core/message.c:1414 usb_disconnect+0x33c/0x8c0 drivers/usb/core/hub.c:2248 hub_port_connect drivers/usb/core/hub.c:5299 [inline] hub_port_connect_change drivers/usb/core/hub.c:5595 [inline] port_event drivers/usb/core/hub.c:5741 [inline] hub_event+0x1d58/0x54c0 drivers/usb/core/hub.c:5823 process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310 worker_thread+0xaca/0x1280 kernel/workqueue.c:2457 kthread+0x3f6/0x4f0 kernel/kthread.c:334 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287 The buggy address belongs to the object at ffff8880229fc800 which belongs to the cache kmalloc-1k of size 1024 The buggy address is located 145 bytes inside of 1024-byte region [ffff8880229fc800, ffff8880229fcc00) The buggy address belongs to the page: page:ffffea00008a7e00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x229f8 head:ffffea00008a7e00 order:3 compound_mapcount:0 compound_pincount:0 flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000010200 ffffea0001def000 0000000200000002 ffff888017041dc0 raw: 0000000000000000 0000000000100010 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 3568, ts 47635640811, free_ts 47493504008 prep_new_page mm/page_alloc.c:2426 [inline] get_page_from_freelist+0x322a/0x33c0 mm/page_alloc.c:4159 __alloc_pages+0x272/0x700 mm/page_alloc.c:5423 alloc_slab_page mm/slub.c:1775 [inline] allocate_slab mm/slub.c:1912 [inline] new_slab+0xbb/0x4b0 mm/slub.c:1975 ___slab_alloc+0x6f6/0xe10 mm/slub.c:3008 __slab_alloc mm/slub.c:3095 [inline] slab_alloc_node mm/slub.c:3186 [inline] slab_alloc mm/slub.c:3228 [inline] __kmalloc+0x1c9/0x300 mm/slub.c:4403 kmalloc include/linux/slab.h:596 [inline] kzalloc include/linux/slab.h:721 [inline] __register_sysctl_table+0xdc/0x1220 fs/proc/proc_sysctl.c:1317 neigh_sysctl_register+0x455/0x530 net/core/neighbour.c:3713 addrconf_sysctl_register+0xac/0x180 net/ipv6/addrconf.c:7134 ipv6_add_dev+0xc96/0x1180 net/ipv6/addrconf.c:454 addrconf_notify+0x671/0xf30 net/ipv6/addrconf.c:3579 notifier_call_chain kernel/notifier.c:83 [inline] raw_notifier_call_chain+0xd0/0x170 kernel/notifier.c:391 call_netdevice_notifiers_info net/core/dev.c:2018 [inline] call_netdevice_notifiers_extack net/core/dev.c:2030 [inline] call_netdevice_notifiers+0x145/0x1b0 net/core/dev.c:2044 register_netdevice+0x12e8/0x1720 net/core/dev.c:10388 veth_newlink+0x94f/0xe20 drivers/net/veth.c:1714 __rtnl_newlink net/core/rtnetlink.c:3492 [inline] rtnl_newlink+0x14e1/0x2070 net/core/rtnetlink.c:3540 rtnetlink_rcv_msg+0x993/0xee0 net/core/rtnetlink.c:5618 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1340 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0xc34/0xcf0 mm/page_alloc.c:3317 free_unref_page+0x95/0x2d0 mm/page_alloc.c:3396 free_slab mm/slub.c:2015 [inline] discard_slab mm/slub.c:2021 [inline] __unfreeze_partials+0x1b7/0x210 mm/slub.c:2507 put_cpu_partial+0x132/0x1a0 mm/slub.c:2587 do_slab_free mm/slub.c:3487 [inline] ___cache_free+0xe3/0x100 mm/slub.c:3506 qlist_free_all+0x36/0x90 mm/kasan/quarantine.c:176 kasan_quarantine_reduce+0x162/0x180 mm/kasan/quarantine.c:283 __kasan_slab_alloc+0x2f/0xc0 mm/kasan/common.c:444 kasan_slab_alloc include/linux/kasan.h:254 [inline] slab_post_alloc_hook+0x53/0x380 mm/slab.h:519 slab_alloc_node mm/slub.c:3220 [inline] slab_alloc mm/slub.c:3228 [inline] kmem_cache_alloc_trace+0xfb/0x290 mm/slub.c:3245 kmalloc include/linux/slab.h:591 [inline] kzalloc include/linux/slab.h:721 [inline] kset_create lib/kobject.c:982 [inline] kset_create_and_add+0x57/0x160 lib/kobject.c:1025 register_queue_kobjects net/core/net-sysfs.c:1759 [inline] netdev_register_kobject+0x1a0/0x310 net/core/net-sysfs.c:2018 register_netdevice+0x108c/0x1720 net/core/dev.c:10357 veth_newlink+0x72e/0xe20 drivers/net/veth.c:1683 __rtnl_newlink net/core/rtnetlink.c:3492 [inline] rtnl_newlink+0x14e1/0x2070 net/core/rtnetlink.c:3540 rtnetlink_rcv_msg+0x993/0xee0 net/core/rtnetlink.c:5618 Memory state around the buggy address: ffff8880229fc780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff8880229fc800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff8880229fc880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff8880229fc900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff8880229fc980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ================================================================== ---------------- Code disassembly (best guess), 5 bytes skipped: 0: df 42 0f filds 0xf(%rdx) 3: b6 04 mov $0x4,%dh 5: 38 84 c0 0f 85 e2 00 cmp %al,0xe2850f(%rax,%rax,8) c: 00 00 add %al,(%rax) e: 83 3d 30 14 2f 15 00 cmpl $0x0,0x152f1430(%rip) # 0x152f1445 15: 75 07 jne 0x1e 17: 65 8b 05 2f 04 ab 7e mov %gs:0x7eab042f(%rip),%eax # 0x7eab044d 1e: 65 01 1d 28 04 ab 7e add %ebx,%gs:0x7eab0428(%rip) # 0x7eab044d * 25: 48 c7 c0 c0 7f 86 96 mov $0xffffffff96867fc0,%rax <-- trapping instruction 2c: 48 c1 e8 03 shr $0x3,%rax 30: 42 0f b6 04 38 movzbl (%rax,%r15,1),%eax 35: 84 c0 test %al,%al 37: 0f .byte 0xf 38: 85 d9 test %ebx,%ecx