powermate: config urb returned -108 ================================================================== BUG: KASAN: use-after-free in perf_trace_lock_acquire+0x400/0x550 include/trace/events/lock.h:13 Read of size 8 at addr ffff88801f828c70 by task syz-executor.4/23055 CPU: 0 PID: 23055 Comm: syz-executor.4 Not tainted 5.16.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 print_address_description.constprop.0.cold+0x8d/0x2ed mm/kasan/report.c:247 __kasan_report mm/kasan/report.c:433 [inline] kasan_report.cold+0x83/0xdf mm/kasan/report.c:450 perf_trace_lock_acquire+0x400/0x550 include/trace/events/lock.h:13 trace_lock_acquire include/trace/events/lock.h:13 [inline] lock_acquire+0x416/0x510 kernel/locking/lockdep.c:5608 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x39/0x50 kernel/locking/spinlock.c:162 powermate_config_complete+0x79/0xb0 drivers/input/misc/powermate.c:202 __usb_hcd_giveback_urb+0x2b0/0x5c0 drivers/usb/core/hcd.c:1656 usb_hcd_giveback_urb+0x367/0x410 drivers/usb/core/hcd.c:1726 dummy_timer+0x11f9/0x32b0 drivers/usb/gadget/udc/dummy_hcd.c:1987 call_timer_fn+0x1a5/0x6b0 kernel/time/timer.c:1421 expire_timers kernel/time/timer.c:1466 [inline] __run_timers.part.0+0x67c/0xa30 kernel/time/timer.c:1734 __run_timers kernel/time/timer.c:1715 [inline] run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1747 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558 invoke_softirq kernel/softirq.c:432 [inline] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:637 irq_exit_rcu+0x5/0x20 kernel/softirq.c:649 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1097 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:lockdep_enabled kernel/locking/lockdep.c:91 [inline] RIP: 0010:lock_release+0x10f/0x720 kernel/locking/lockdep.c:5650 Code: 35 0c 45 85 d2 0f 84 f7 02 00 00 65 8b 05 f9 9d a6 7e 85 c0 0f 85 e8 02 00 00 65 4c 8b 34 25 40 70 02 00 49 8d be 5c 0a 00 00 <48> b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 14 02 48 RSP: 0018:ffffc9000a0ef930 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffffffff8d914fac RCX: 0000000000000001 RDX: 0000000000000000 RSI: 0000000000000002 RDI: ffff888073386a9c RBP: 1ffff9200141df28 R08: 0000000000000000 R09: ffffffff8d911b97 R10: 0000000000000001 R11: 0000000000000000 R12: ffffffff8bb812a0 R13: ffff88801ddcdcb0 R14: ffff888073386040 R15: 00007fc437597000 zap_pte_range mm/memory.c:1357 [inline] zap_pmd_range mm/memory.c:1467 [inline] zap_pud_range mm/memory.c:1496 [inline] zap_p4d_range mm/memory.c:1517 [inline] unmap_page_range+0xf0e/0x29f0 mm/memory.c:1538 unmap_single_vma+0x198/0x310 mm/memory.c:1583 unmap_vmas+0x16b/0x2f0 mm/memory.c:1615 exit_mmap+0x1d0/0x630 mm/mmap.c:3170 __mmput+0x122/0x4b0 kernel/fork.c:1113 mmput+0x56/0x60 kernel/fork.c:1134 exit_mm kernel/exit.c:507 [inline] do_exit+0xb27/0x2b40 kernel/exit.c:819 do_group_exit+0x125/0x310 kernel/exit.c:929 __do_sys_exit_group kernel/exit.c:940 [inline] __se_sys_exit_group kernel/exit.c:938 [inline] __x64_sys_exit_group+0x3a/0x50 kernel/exit.c:938 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fc43773ee99 Code: Unable to access opcode bytes at RIP 0x7fc43773ee6f. RSP: 002b:00007fff5ef6ce28 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 000000000000001e RCX: 00007fc43773ee99 RDX: 00007fc4376f1adb RSI: ffffffffffffffbc RDI: 0000000000000000 RBP: 0000000000000001 R08: 00000000803ee021 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000001 R15: 00007fff5ef6cf10 Allocated by task 3689: kasan_save_stack+0x1e/0x50 mm/kasan/common.c:38 kasan_set_track mm/kasan/common.c:46 [inline] set_alloc_info mm/kasan/common.c:434 [inline] ____kasan_kmalloc mm/kasan/common.c:513 [inline] ____kasan_kmalloc mm/kasan/common.c:472 [inline] __kasan_kmalloc+0xa6/0xd0 mm/kasan/common.c:522 kasan_kmalloc include/linux/kasan.h:269 [inline] kmem_cache_alloc_trace+0x1ea/0x4a0 mm/slab.c:3575 kmalloc include/linux/slab.h:590 [inline] kzalloc include/linux/slab.h:724 [inline] powermate_probe+0x24a/0x12a0 drivers/input/misc/powermate.c:323 usb_probe_interface+0x315/0x7f0 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:517 [inline] really_probe+0x245/0xcc0 drivers/base/dd.c:596 __driver_probe_device+0x338/0x4d0 drivers/base/dd.c:751 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:781 __device_attach_driver+0x20b/0x2f0 drivers/base/dd.c:898 bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:427 __device_attach+0x228/0x4a0 drivers/base/dd.c:969 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:487 device_add+0xc17/0x1ee0 drivers/base/core.c:3394 usb_set_configuration+0x101e/0x1900 drivers/usb/core/message.c:2170 usb_generic_driver_probe+0xba/0x100 drivers/usb/core/generic.c:238 usb_probe_device+0xd9/0x2c0 drivers/usb/core/driver.c:293 call_driver_probe drivers/base/dd.c:517 [inline] really_probe+0x245/0xcc0 drivers/base/dd.c:596 __driver_probe_device+0x338/0x4d0 drivers/base/dd.c:751 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:781 __device_attach_driver+0x20b/0x2f0 drivers/base/dd.c:898 bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:427 __device_attach+0x228/0x4a0 drivers/base/dd.c:969 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:487 device_add+0xc17/0x1ee0 drivers/base/core.c:3394 usb_new_device.cold+0x63f/0x108e drivers/usb/core/hub.c:2563 hub_port_connect drivers/usb/core/hub.c:5353 [inline] hub_port_connect_change drivers/usb/core/hub.c:5497 [inline] port_event drivers/usb/core/hub.c:5643 [inline] hub_event+0x23e5/0x4460 drivers/usb/core/hub.c:5725 process_one_work+0x9b2/0x1660 kernel/workqueue.c:2298 worker_thread+0x65d/0x1130 kernel/workqueue.c:2445 kthread+0x405/0x4f0 kernel/kthread.c:327 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 Freed by task 23054: kasan_save_stack+0x1e/0x50 mm/kasan/common.c:38 kasan_set_track+0x21/0x30 mm/kasan/common.c:46 kasan_set_free_info+0x20/0x30 mm/kasan/generic.c:370 ____kasan_slab_free mm/kasan/common.c:366 [inline] ____kasan_slab_free mm/kasan/common.c:328 [inline] __kasan_slab_free+0xd1/0x110 mm/kasan/common.c:374 kasan_slab_free include/linux/kasan.h:235 [inline] __cache_free mm/slab.c:3445 [inline] kfree+0x10d/0x2c0 mm/slab.c:3802 powermate_disconnect+0x1ce/0x250 drivers/input/misc/powermate.c:432 usb_unbind_interface+0x1d8/0x8e0 drivers/usb/core/driver.c:458 __device_release_driver+0x5d7/0x700 drivers/base/dd.c:1205 device_release_driver_internal drivers/base/dd.c:1236 [inline] device_release_driver+0x26/0x40 drivers/base/dd.c:1259 bus_remove_device+0x2eb/0x5a0 drivers/base/bus.c:529 device_del+0x502/0xd60 drivers/base/core.c:3581 usb_disable_device+0x35b/0x7b0 drivers/usb/core/message.c:1419 usb_disconnect.cold+0x27a/0x78e drivers/usb/core/hub.c:2225 hub_quiesce+0x170/0x310 drivers/usb/core/hub.c:1327 hub_disconnect+0xcb/0x510 drivers/usb/core/hub.c:1722 usb_unbind_interface+0x1d8/0x8e0 drivers/usb/core/driver.c:458 __device_release_driver+0x5d7/0x700 drivers/base/dd.c:1205 device_release_driver_internal drivers/base/dd.c:1236 [inline] device_release_driver+0x26/0x40 drivers/base/dd.c:1259 usb_driver_release_interface+0x102/0x180 drivers/usb/core/driver.c:627 proc_disconnect_claim+0x217/0x380 drivers/usb/core/devio.c:2464 usbdev_do_ioctl drivers/usb/core/devio.c:2747 [inline] usbdev_ioctl+0x2b43/0x36c0 drivers/usb/core/devio.c:2791 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl fs/ioctl.c:860 [inline] __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae Last potentially related work creation: kasan_save_stack+0x1e/0x50 mm/kasan/common.c:38 __kasan_record_aux_stack+0xb5/0xe0 mm/kasan/generic.c:348 __call_rcu kernel/rcu/tree.c:2985 [inline] call_rcu+0xb1/0x740 kernel/rcu/tree.c:3065 fib6_info_release include/net/ip6_fib.h:337 [inline] fib6_info_release include/net/ip6_fib.h:334 [inline] ip6_route_add+0x12d/0x150 net/ipv6/route.c:3872 addrconf_prefix_route+0x30a/0x4e0 net/ipv6/addrconf.c:2424 add_v4_addrs+0x649/0x880 net/ipv6/addrconf.c:3152 addrconf_gre_config net/ipv6/addrconf.c:3425 [inline] addrconf_notify+0x9b7/0x1bb0 net/ipv6/addrconf.c:3605 notifier_call_chain+0xb5/0x200 kernel/notifier.c:83 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2002 call_netdevice_notifiers_extack net/core/dev.c:2014 [inline] call_netdevice_notifiers net/core/dev.c:2028 [inline] __dev_notify_flags+0x110/0x2b0 net/core/dev.c:8834 dev_change_flags+0x112/0x170 net/core/dev.c:8872 do_setlink+0x96d/0x3970 net/core/rtnetlink.c:2719 __rtnl_newlink+0xde6/0x1750 net/core/rtnetlink.c:3391 rtnl_newlink+0x64/0xa0 net/core/rtnetlink.c:3506 rtnetlink_rcv_msg+0x413/0xb80 net/core/rtnetlink.c:5571 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2496 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x904/0xdf0 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:704 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:724 __sys_sendto+0x21c/0x320 net/socket.c:2036 __do_sys_sendto net/socket.c:2048 [inline] __se_sys_sendto net/socket.c:2044 [inline] __x64_sys_sendto+0xdd/0x1b0 net/socket.c:2044 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae Second to last potentially related work creation: kasan_save_stack+0x1e/0x50 mm/kasan/common.c:38 __kasan_record_aux_stack+0xb5/0xe0 mm/kasan/generic.c:348 __call_rcu kernel/rcu/tree.c:2985 [inline] call_rcu+0xb1/0x740 kernel/rcu/tree.c:3065 fib6_info_release include/net/ip6_fib.h:337 [inline] fib6_info_release include/net/ip6_fib.h:334 [inline] fib6_del_route net/ipv6/ip6_fib.c:1994 [inline] fib6_del+0x11d7/0x15d0 net/ipv6/ip6_fib.c:2027 fib6_clean_node+0x393/0x5c0 net/ipv6/ip6_fib.c:2189 fib6_walk_continue+0x3e9/0x6c0 net/ipv6/ip6_fib.c:2111 fib6_walk+0x182/0x370 net/ipv6/ip6_fib.c:2159 fib6_clean_tree+0xdb/0x120 net/ipv6/ip6_fib.c:2239 __fib6_clean_all+0x107/0x2a0 net/ipv6/ip6_fib.c:2255 rt6_sync_down_dev net/ipv6/route.c:4907 [inline] rt6_disable_ip+0x844/0x940 net/ipv6/route.c:4912 addrconf_ifdown.isra.0+0xf6/0x1630 net/ipv6/addrconf.c:3726 addrconf_notify+0xeb/0x1bb0 net/ipv6/addrconf.c:3651 notifier_call_chain+0xb5/0x200 kernel/notifier.c:83 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2002 call_netdevice_notifiers_extack net/core/dev.c:2014 [inline] call_netdevice_notifiers net/core/dev.c:2028 [inline] dev_close_many+0x2ff/0x620 net/core/dev.c:1603 unregister_netdevice_many+0x3ff/0x1790 net/core/dev.c:11057 default_device_exit_batch+0x2fa/0x3c0 net/core/dev.c:11610 ops_exit_list+0x10d/0x160 net/core/net_namespace.c:171 cleanup_net+0x4ea/0xb00 net/core/net_namespace.c:593 process_one_work+0x9b2/0x1660 kernel/workqueue.c:2298 worker_thread+0x65d/0x1130 kernel/workqueue.c:2445 kthread+0x405/0x4f0 kernel/kthread.c:327 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 The buggy address belongs to the object at ffff88801f828c00 which belongs to the cache kmalloc-256 of size 256 The buggy address is located 112 bytes inside of 256-byte region [ffff88801f828c00, ffff88801f828d00) The buggy address belongs to the page: page:ffffea00007e0a00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1f828 flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000200 ffffea0001d7be08 ffffea0001fee148 ffff888010c40500 raw: 0000000000000000 ffff88801f828000 0000000100000008 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2420c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_COMP|__GFP_THISNODE), pid 3641, ts 140930469297, free_ts 140843966328 prep_new_page mm/page_alloc.c:2418 [inline] get_page_from_freelist+0xa72/0x2f50 mm/page_alloc.c:4149 __alloc_pages+0x1b2/0x500 mm/page_alloc.c:5369 __alloc_pages_node include/linux/gfp.h:570 [inline] kmem_getpages mm/slab.c:1377 [inline] cache_grow_begin+0x75/0x470 mm/slab.c:2593 cache_alloc_refill+0x27f/0x380 mm/slab.c:2965 ____cache_alloc mm/slab.c:3048 [inline] ____cache_alloc mm/slab.c:3031 [inline] __do_cache_alloc mm/slab.c:3275 [inline] slab_alloc mm/slab.c:3316 [inline] kmem_cache_alloc_trace+0x380/0x4a0 mm/slab.c:3573 kmalloc include/linux/slab.h:590 [inline] kzalloc include/linux/slab.h:724 [inline] fib6_info_alloc+0xc1/0x210 net/ipv6/ip6_fib.c:155 ip6_route_info_create+0x33e/0x1aa0 net/ipv6/route.c:3773 ip6_route_add+0x24/0x150 net/ipv6/route.c:3867 addrconf_add_mroute+0x1e1/0x310 net/ipv6/addrconf.c:2488 addrconf_add_dev+0x162/0x1d0 net/ipv6/addrconf.c:2506 inet6_addr_add+0x1a4/0xae0 net/ipv6/addrconf.c:2922 inet6_rtm_newaddr+0xf00/0x1970 net/ipv6/addrconf.c:4892 rtnetlink_rcv_msg+0x413/0xb80 net/core/rtnetlink.c:5571 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2496 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x904/0xdf0 net/netlink/af_netlink.c:1921 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1338 [inline] free_pcp_prepare+0x374/0x870 mm/page_alloc.c:1389 free_unref_page_prepare mm/page_alloc.c:3309 [inline] free_unref_page+0x19/0x690 mm/page_alloc.c:3388 slab_destroy mm/slab.c:1627 [inline] slabs_destroy+0x89/0xc0 mm/slab.c:1647 cache_flusharray mm/slab.c:3418 [inline] ___cache_free+0x4cc/0x610 mm/slab.c:3480 qlink_free mm/kasan/quarantine.c:146 [inline] qlist_free_all+0x4e/0x110 mm/kasan/quarantine.c:165 kasan_quarantine_reduce+0x180/0x200 mm/kasan/quarantine.c:272 __kasan_slab_alloc+0x97/0xb0 mm/kasan/common.c:444 kasan_slab_alloc include/linux/kasan.h:259 [inline] slab_post_alloc_hook mm/slab.h:519 [inline] slab_alloc_node mm/slab.c:3261 [inline] kmem_cache_alloc_node+0x2ea/0x590 mm/slab.c:3599 __alloc_skb+0x215/0x340 net/core/skbuff.c:414 alloc_skb include/linux/skbuff.h:1127 [inline] nlmsg_new include/net/netlink.h:953 [inline] netlink_ack+0x1f0/0xa60 net/netlink/af_netlink.c:2431 netlink_rcv_skb+0x33d/0x420 net/netlink/af_netlink.c:2502 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x904/0xdf0 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:704 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:724 __sys_sendto+0x21c/0x320 net/socket.c:2036 __do_sys_sendto net/socket.c:2048 [inline] __se_sys_sendto net/socket.c:2044 [inline] __x64_sys_sendto+0xdd/0x1b0 net/socket.c:2044 Memory state around the buggy address: ffff88801f828b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff88801f828b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff88801f828c00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff88801f828c80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88801f828d00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ================================================================== ---------------- Code disassembly (best guess): 0: 35 0c 45 85 d2 xor $0xd285450c,%eax 5: 0f 84 f7 02 00 00 je 0x302 b: 65 8b 05 f9 9d a6 7e mov %gs:0x7ea69df9(%rip),%eax # 0x7ea69e0b 12: 85 c0 test %eax,%eax 14: 0f 85 e8 02 00 00 jne 0x302 1a: 65 4c 8b 34 25 40 70 mov %gs:0x27040,%r14 21: 02 00 23: 49 8d be 5c 0a 00 00 lea 0xa5c(%r14),%rdi * 2a: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax <-- trapping instruction 31: fc ff df 34: 48 89 fa mov %rdi,%rdx 37: 48 c1 ea 03 shr $0x3,%rdx 3b: 0f b6 14 02 movzbl (%rdx,%rax,1),%edx 3f: 48 rex.W