powermate 6-1:0.0: powermate_irq - usb_submit_urb failed with result: -19 powermate: config urb returned -71 ================================================================== BUG: KASAN: use-after-free in __lock_acquire+0x3eb0/0x56c0 kernel/locking/lockdep.c:4899 Read of size 8 at addr ffff8880760c2258 by task ksoftirqd/1/21 CPU: 1 PID: 21 Comm: ksoftirqd/1 Not tainted 5.18.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x57/0x7d lib/dump_stack.c:106 print_address_description.constprop.0.cold+0xeb/0x495 mm/kasan/report.c:313 print_report mm/kasan/report.c:429 [inline] kasan_report.cold+0xf4/0x1c6 mm/kasan/report.c:491 __lock_acquire+0x3eb0/0x56c0 kernel/locking/lockdep.c:4899 lock_acquire kernel/locking/lockdep.c:5641 [inline] lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5606 __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+0x66/0x90 drivers/input/misc/powermate.c:202 __usb_hcd_giveback_urb+0x238/0x3f0 drivers/usb/core/hcd.c:1670 dummy_timer+0xeb8/0x2e90 drivers/usb/gadget/udc/dummy_hcd.c:1988 call_timer_fn+0x163/0x4a0 kernel/time/timer.c:1421 expire_timers kernel/time/timer.c:1466 [inline] __run_timers.part.0+0x52c/0x8e0 kernel/time/timer.c:1737 __run_timers kernel/time/timer.c:1715 [inline] run_timer_softirq+0x9c/0x190 kernel/time/timer.c:1750 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558 run_ksoftirqd kernel/softirq.c:921 [inline] run_ksoftirqd+0x2d/0x60 kernel/softirq.c:913 smpboot_thread_fn+0x548/0x8c0 kernel/smpboot.c:164 kthread+0x299/0x340 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298 Allocated by task 4099: kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38 kasan_set_track mm/kasan/common.c:45 [inline] set_alloc_info mm/kasan/common.c:436 [inline] ____kasan_kmalloc mm/kasan/common.c:515 [inline] ____kasan_kmalloc mm/kasan/common.c:474 [inline] __kasan_kmalloc+0xa9/0xd0 mm/kasan/common.c:524 kmalloc include/linux/slab.h:581 [inline] kzalloc include/linux/slab.h:714 [inline] powermate_probe+0x1fc/0x1300 drivers/input/misc/powermate.c:323 usb_probe_interface+0x274/0x6a0 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:542 [inline] really_probe+0x1c1/0x9d0 drivers/base/dd.c:621 __driver_probe_device+0x2a6/0x460 drivers/base/dd.c:752 driver_probe_device+0x44/0x110 drivers/base/dd.c:782 __device_attach_driver+0x185/0x250 drivers/base/dd.c:899 bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:427 __device_attach+0x1db/0x410 drivers/base/dd.c:970 bus_probe_device+0x19d/0x250 drivers/base/bus.c:487 device_add+0x9ca/0x1b10 drivers/base/core.c:3405 usb_set_configuration+0xa66/0x18b0 drivers/usb/core/message.c:2170 usb_generic_driver_probe+0x74/0xa0 drivers/usb/core/generic.c:238 usb_probe_device+0x95/0x240 drivers/usb/core/driver.c:293 call_driver_probe drivers/base/dd.c:542 [inline] really_probe+0x1c1/0x9d0 drivers/base/dd.c:621 __driver_probe_device+0x2a6/0x460 drivers/base/dd.c:752 driver_probe_device+0x44/0x110 drivers/base/dd.c:782 __device_attach_driver+0x185/0x250 drivers/base/dd.c:899 bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:427 __device_attach+0x1db/0x410 drivers/base/dd.c:970 bus_probe_device+0x19d/0x250 drivers/base/bus.c:487 device_add+0x9ca/0x1b10 drivers/base/core.c:3405 usb_new_device.cold+0x5d1/0xeeb drivers/usb/core/hub.c:2566 hub_port_connect drivers/usb/core/hub.c:5363 [inline] hub_port_connect_change drivers/usb/core/hub.c:5507 [inline] port_event drivers/usb/core/hub.c:5665 [inline] hub_event+0x114d/0x39a0 drivers/usb/core/hub.c:5747 process_one_work+0x865/0x13d0 kernel/workqueue.c:2289 worker_thread+0x598/0xec0 kernel/workqueue.c:2436 kthread+0x299/0x340 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298 Freed by task 2924: kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38 kasan_set_track+0x21/0x30 mm/kasan/common.c:45 kasan_set_free_info+0x20/0x30 mm/kasan/generic.c:370 ____kasan_slab_free mm/kasan/common.c:366 [inline] ____kasan_slab_free+0x166/0x1a0 mm/kasan/common.c:328 kasan_slab_free include/linux/kasan.h:200 [inline] slab_free_hook mm/slub.c:1728 [inline] slab_free_freelist_hook+0x8b/0x1c0 mm/slub.c:1754 slab_free mm/slub.c:3510 [inline] kfree+0xd6/0x4d0 mm/slub.c:4552 usb_unbind_interface+0x183/0x7e0 drivers/usb/core/driver.c:458 __device_release_driver drivers/base/dd.c:1200 [inline] device_release_driver_internal+0x3be/0x590 drivers/base/dd.c:1223 bus_remove_device+0x295/0x550 drivers/base/bus.c:529 device_del+0x48d/0xb80 drivers/base/core.c:3592 usb_disable_device+0x29c/0x660 drivers/usb/core/message.c:1419 usb_disconnect.cold+0x20a/0x61d drivers/usb/core/hub.c:2228 hub_port_connect drivers/usb/core/hub.c:5207 [inline] hub_port_connect_change drivers/usb/core/hub.c:5507 [inline] port_event drivers/usb/core/hub.c:5665 [inline] hub_event+0xb46/0x39a0 drivers/usb/core/hub.c:5747 process_one_work+0x865/0x13d0 kernel/workqueue.c:2289 worker_thread+0x598/0xec0 kernel/workqueue.c:2436 kthread+0x299/0x340 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298 Last potentially related work creation: kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38 __kasan_record_aux_stack+0xbe/0xd0 mm/kasan/generic.c:348 kvfree_call_rcu+0x74/0x990 kernel/rcu/tree.c:3595 drop_sysctl_table+0x317/0x440 fs/proc/proc_sysctl.c:1705 unregister_sysctl_table fs/proc/proc_sysctl.c:1743 [inline] unregister_sysctl_table+0x97/0x170 fs/proc/proc_sysctl.c:1718 __devinet_sysctl_unregister net/ipv4/devinet.c:2611 [inline] devinet_sysctl_unregister net/ipv4/devinet.c:2639 [inline] inetdev_event+0xb03/0x11c0 net/ipv4/devinet.c:1612 notifier_call_chain+0x94/0x170 kernel/notifier.c:84 call_netdevice_notifiers_extack net/core/dev.c:1981 [inline] call_netdevice_notifiers net/core/dev.c:1995 [inline] dev_change_name+0x488/0x740 net/core/dev.c:1224 do_setlink+0x21b8/0x2d90 net/core/rtnetlink.c:2754 __rtnl_newlink+0x94d/0x14c0 net/core/rtnetlink.c:3540 rtnl_newlink+0x5a/0x90 net/core/rtnetlink.c:3587 rtnetlink_rcv_msg+0x32d/0x9a0 net/core/rtnetlink.c:6083 netlink_rcv_skb+0x118/0x370 net/netlink/af_netlink.c:2502 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x433/0x710 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x782/0xc30 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:705 [inline] sock_sendmsg+0xab/0xe0 net/socket.c:725 __sys_sendto+0x1a5/0x270 net/socket.c:2049 __do_sys_sendto net/socket.c:2061 [inline] __se_sys_sendto net/socket.c:2057 [inline] __x64_sys_sendto+0xd8/0x1b0 net/socket.c:2057 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 The buggy address belongs to the object at ffff8880760c2200 which belongs to the cache kmalloc-256 of size 256 The buggy address is located 88 bytes inside of 256-byte region [ffff8880760c2200, ffff8880760c2300) The buggy address belongs to the physical page: page:ffffea0001d83080 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x760c2 head:ffffea0001d83080 order:1 compound_mapcount:0 compound_pincount:0 flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000010200 dead000000000100 dead000000000122 ffff888010841b40 raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 1, migratetype Unmovable, gfp_mask 0x1d20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 4071, tgid 4071 (syz-executor.3), ts 73964217426, free_ts 73895024402 prep_new_page mm/page_alloc.c:2441 [inline] get_page_from_freelist+0xba2/0x3e00 mm/page_alloc.c:4182 __alloc_pages+0x1b2/0x500 mm/page_alloc.c:5408 alloc_slab_page mm/slub.c:1799 [inline] allocate_slab+0x26c/0x3c0 mm/slub.c:1944 new_slab mm/slub.c:2004 [inline] ___slab_alloc+0x8df/0xf20 mm/slub.c:3005 __slab_alloc.constprop.0+0x4d/0xa0 mm/slub.c:3092 slab_alloc_node mm/slub.c:3183 [inline] slab_alloc mm/slub.c:3225 [inline] __kmalloc+0x318/0x350 mm/slub.c:4410 kmalloc include/linux/slab.h:586 [inline] kzalloc include/linux/slab.h:714 [inline] new_dir fs/proc/proc_sysctl.c:971 [inline] get_subdir fs/proc/proc_sysctl.c:1016 [inline] __register_sysctl_table+0x82c/0x11a0 fs/proc/proc_sysctl.c:1364 neigh_sysctl_register+0x275/0x5f0 net/core/neighbour.c:3793 devinet_sysctl_register+0x8a/0x1e0 net/ipv4/devinet.c:2625 inetdev_init+0x21c/0x480 net/ipv4/devinet.c:279 inetdev_event+0x792/0x11c0 net/ipv4/devinet.c:1536 notifier_call_chain+0x94/0x170 kernel/notifier.c:84 call_netdevice_notifiers_extack net/core/dev.c:1981 [inline] call_netdevice_notifiers net/core/dev.c:1995 [inline] register_netdevice+0xd6f/0x1400 net/core/dev.c:10037 nsim_init_netdevsim drivers/net/netdevsim/netdev.c:317 [inline] nsim_create+0x371/0x4b0 drivers/net/netdevsim/netdev.c:365 __nsim_dev_port_add+0x24f/0x780 drivers/net/netdevsim/dev.c:1390 nsim_dev_port_add_all+0x38/0x70 drivers/net/netdevsim/dev.c:1451 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1356 [inline] free_pcp_prepare+0x549/0xd20 mm/page_alloc.c:1406 free_unref_page_prepare mm/page_alloc.c:3328 [inline] free_unref_page+0x19/0x6a0 mm/page_alloc.c:3423 __unfreeze_partials+0x17c/0x1a0 mm/slub.c:2523 qlink_free mm/kasan/quarantine.c:157 [inline] qlist_free_all+0x6a/0x170 mm/kasan/quarantine.c:176 kasan_quarantine_reduce+0x180/0x200 mm/kasan/quarantine.c:283 __kasan_slab_alloc+0xa2/0xc0 mm/kasan/common.c:446 kasan_slab_alloc include/linux/kasan.h:224 [inline] slab_post_alloc_hook mm/slab.h:749 [inline] slab_alloc_node mm/slub.c:3217 [inline] kmem_cache_alloc_node+0x255/0x3f0 mm/slub.c:3267 __alloc_skb+0x151/0x270 net/core/skbuff.c:413 alloc_skb include/linux/skbuff.h:1326 [inline] nlmsg_new include/net/netlink.h:953 [inline] inet_netconf_notify_devconf+0x7b/0x130 net/ipv4/devinet.c:2103 __devinet_sysctl_unregister net/ipv4/devinet.c:2615 [inline] devinet_sysctl_unregister net/ipv4/devinet.c:2639 [inline] inetdev_event+0xb20/0x11c0 net/ipv4/devinet.c:1612 notifier_call_chain+0x94/0x170 kernel/notifier.c:84 call_netdevice_notifiers_extack net/core/dev.c:1981 [inline] call_netdevice_notifiers net/core/dev.c:1995 [inline] dev_change_name+0x488/0x740 net/core/dev.c:1224 do_setlink+0x21b8/0x2d90 net/core/rtnetlink.c:2754 __rtnl_newlink+0x94d/0x14c0 net/core/rtnetlink.c:3540 rtnl_newlink+0x5a/0x90 net/core/rtnetlink.c:3587 rtnetlink_rcv_msg+0x32d/0x9a0 net/core/rtnetlink.c:6083 Memory state around the buggy address: ffff8880760c2100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff8880760c2180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff8880760c2200: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff8880760c2280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff8880760c2300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ==================================================================