Hello, syzbot found the following issue on: HEAD commit: f9ff5644bcc0 Merge tag 'hsi-for-6.2' of git://git.kernel.o.. git tree: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing console output: https://syzkaller.appspot.com/x/log.txt?x=124e11c8480000 kernel config: https://syzkaller.appspot.com/x/.config?x=d0b80bd549c34918 dashboard link: https://syzkaller.appspot.com/bug?extid=9554fc2c9f37f1b9fe77 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/39b24e3d0967/disk-f9ff5644.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/91e3c62e1185/vmlinux-f9ff5644.xz kernel image: https://storage.googleapis.com/syzbot-assets/7737d489c34c/bzImage-f9ff5644.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+9554fc2c9f37f1b9fe77@xxxxxxxxxxxxxxxxxxxxxxxxx ================================================================== BUG: KASAN: use-after-free in __lock_acquire+0x3ee7/0x56d0 kernel/locking/lockdep.c:4925 Read of size 8 at addr ffff888115c8dc30 by task syz-executor.0/26716 CPU: 0 PID: 26716 Comm: syz-executor.0 Not tainted 6.1.0-syzkaller-13139-gf9ff5644bcc0 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:306 [inline] print_report+0x15e/0x45d mm/kasan/report.c:417 kasan_report+0xbb/0x1f0 mm/kasan/report.c:517 __lock_acquire+0x3ee7/0x56d0 kernel/locking/lockdep.c:4925 lock_acquire kernel/locking/lockdep.c:5668 [inline] lock_acquire+0x1df/0x630 kernel/locking/lockdep.c:5633 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:154 __mutex_unlock_slowpath+0x18e/0x5e0 kernel/locking/mutex.c:932 hiddev_release+0x3af/0x520 drivers/hid/usbhid/hiddev.c:238 __fput+0x27c/0xa90 fs/file_table.c:320 task_work_run+0x16b/0x270 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop kernel/entry/common.c:171 [inline] exit_to_user_mode_prepare+0x1f7/0x200 kernel/entry/common.c:203 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline] syscall_exit_to_user_mode+0x19/0x50 kernel/entry/common.c:296 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fb6eca82f8b Code: 0f 05 48 3d 00 f0 ff ff 77 45 c3 0f 1f 40 00 48 83 ec 18 89 7c 24 0c e8 63 fc ff ff 8b 7c 24 0c 41 89 c0 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 89 44 24 0c e8 a1 fc ff ff 8b 44 RSP: 002b:00007fb6ebe23120 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 00007fb6ecbf1050 RCX: 00007fb6eca82f8b RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 00007fb6ecb2cae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000003 R11: 0000000000000293 R12: 0000000000000000 R13: 00007ffedbcffaef R14: 00007fb6ebe23300 R15: 0000000000022000 </TASK> Allocated by task 16834: kasan_save_stack+0x1e/0x40 mm/kasan/common.c:45 kasan_set_track+0x21/0x30 mm/kasan/common.c:52 ____kasan_kmalloc mm/kasan/common.c:371 [inline] __kasan_kmalloc+0x7a/0x90 mm/kasan/common.c:380 kmalloc include/linux/slab.h:580 [inline] kzalloc include/linux/slab.h:720 [inline] hiddev_connect+0x246/0x5c0 drivers/hid/usbhid/hiddev.c:893 hid_connect+0x26d/0x17c0 drivers/hid/hid-core.c:2174 hid_hw_start drivers/hid/hid-core.c:2282 [inline] hid_hw_start+0xa2/0x130 drivers/hid/hid-core.c:2273 plantronics_probe+0x300/0x3d0 drivers/hid/hid-plantronics.c:191 hid_device_probe+0x296/0x3c0 drivers/hid/hid-core.c:2603 call_driver_probe drivers/base/dd.c:560 [inline] really_probe+0x249/0xb90 drivers/base/dd.c:639 __driver_probe_device+0x1df/0x4d0 drivers/base/dd.c:778 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:808 __device_attach_driver+0x1d0/0x2e0 drivers/base/dd.c:936 bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:427 __device_attach+0x1e4/0x530 drivers/base/dd.c:1008 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:487 device_add+0xbd5/0x1e90 drivers/base/core.c:3479 hid_add_device+0x373/0xa10 drivers/hid/hid-core.c:2755 usbhid_probe+0xbaa/0x1020 drivers/hid/usbhid/hid-core.c:1424 usb_probe_interface+0x30b/0x7f0 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:560 [inline] really_probe+0x249/0xb90 drivers/base/dd.c:639 __driver_probe_device+0x1df/0x4d0 drivers/base/dd.c:778 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:808 __device_attach_driver+0x1d0/0x2e0 drivers/base/dd.c:936 bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:427 __device_attach+0x1e4/0x530 drivers/base/dd.c:1008 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:487 device_add+0xbd5/0x1e90 drivers/base/core.c:3479 usb_set_configuration+0x1019/0x1900 drivers/usb/core/message.c:2171 usb_generic_driver_probe+0xba/0x100 drivers/usb/core/generic.c:238 usb_probe_device+0xd4/0x2c0 drivers/usb/core/driver.c:293 call_driver_probe drivers/base/dd.c:560 [inline] really_probe+0x249/0xb90 drivers/base/dd.c:639 __driver_probe_device+0x1df/0x4d0 drivers/base/dd.c:778 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:808 __device_attach_driver+0x1d0/0x2e0 drivers/base/dd.c:936 bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:427 __device_attach+0x1e4/0x530 drivers/base/dd.c:1008 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:487 device_add+0xbd5/0x1e90 drivers/base/core.c:3479 usb_new_device.cold+0x685/0x10ad drivers/usb/core/hub.c:2573 hub_port_connect drivers/usb/core/hub.c:5405 [inline] hub_port_connect_change drivers/usb/core/hub.c:5549 [inline] port_event drivers/usb/core/hub.c:5709 [inline] hub_event+0x2d58/0x4810 drivers/usb/core/hub.c:5791 process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289 process_scheduled_works kernel/workqueue.c:2352 [inline] worker_thread+0x854/0x1080 kernel/workqueue.c:2438 kthread+0x2ea/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 Freed by task 16833: kasan_save_stack+0x1e/0x40 mm/kasan/common.c:45 kasan_set_track+0x21/0x30 mm/kasan/common.c:52 kasan_save_free_info+0x2a/0x40 mm/kasan/generic.c:518 ____kasan_slab_free mm/kasan/common.c:236 [inline] ____kasan_slab_free+0x144/0x1b0 mm/kasan/common.c:200 kasan_slab_free include/linux/kasan.h:177 [inline] slab_free_hook mm/slub.c:1781 [inline] slab_free_freelist_hook mm/slub.c:1807 [inline] slab_free mm/slub.c:3787 [inline] __kmem_cache_free+0x95/0x400 mm/slub.c:3800 hiddev_disconnect+0x172/0x1c0 drivers/hid/usbhid/hiddev.c:943 hid_disconnect+0xb4/0x1a0 drivers/hid/hid-core.c:2257 hid_hw_stop drivers/hid/hid-core.c:2302 [inline] hid_device_remove+0x15d/0x200 drivers/hid/hid-core.c:2634 device_remove+0xc8/0x170 drivers/base/dd.c:548 __device_release_driver drivers/base/dd.c:1253 [inline] device_release_driver_internal+0x4a1/0x700 drivers/base/dd.c:1279 bus_remove_device+0x2e3/0x590 drivers/base/bus.c:529 device_del+0x4f3/0xc80 drivers/base/core.c:3666 hid_remove_device drivers/hid/hid-core.c:2803 [inline] hid_destroy_device+0xe1/0x150 drivers/hid/hid-core.c:2822 usbhid_disconnect+0x9f/0xe0 drivers/hid/usbhid/hid-core.c:1451 usb_unbind_interface+0x1d8/0x8e0 drivers/usb/core/driver.c:458 device_remove drivers/base/dd.c:550 [inline] device_remove+0x11f/0x170 drivers/base/dd.c:542 __device_release_driver drivers/base/dd.c:1253 [inline] device_release_driver_internal+0x4a1/0x700 drivers/base/dd.c:1279 bus_remove_device+0x2e3/0x590 drivers/base/bus.c:529 device_del+0x4f3/0xc80 drivers/base/core.c:3666 usb_disable_device+0x356/0x7a0 drivers/usb/core/message.c:1420 usb_disconnect.cold+0x259/0x6ed drivers/usb/core/hub.c:2235 hub_port_connect drivers/usb/core/hub.c:5244 [inline] hub_port_connect_change drivers/usb/core/hub.c:5549 [inline] port_event drivers/usb/core/hub.c:5709 [inline] hub_event+0x1fb1/0x4810 drivers/usb/core/hub.c:5791 process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289 worker_thread+0x665/0x1080 kernel/workqueue.c:2436 kthread+0x2ea/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 The buggy address belongs to the object at ffff888115c8dc00 which belongs to the cache kmalloc-512 of size 512 The buggy address is located 48 bytes inside of 512-byte region [ffff888115c8dc00, ffff888115c8de00) The buggy address belongs to the physical page: page:ffffea0004572300 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x115c8c head:ffffea0004572300 order:2 compound_mapcount:0 subpages_mapcount:0 compound_pincount:0 flags: 0x200000000010200(slab|head|node=0|zone=2) raw: 0200000000010200 ffff888100041c80 ffffea000448bd00 dead000000000002 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 0x1d20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 19882, tgid 19882 (udevd), ts 1810039154353, free_ts 1800647190180 prep_new_page mm/page_alloc.c:2531 [inline] get_page_from_freelist+0x1263/0x2c00 mm/page_alloc.c:4283 __alloc_pages+0x1c7/0x5a0 mm/page_alloc.c:5549 alloc_pages+0x1a6/0x270 mm/mempolicy.c:2285 alloc_slab_page mm/slub.c:1851 [inline] allocate_slab+0x25f/0x350 mm/slub.c:1998 new_slab mm/slub.c:2051 [inline] ___slab_alloc+0xa91/0x1400 mm/slub.c:3193 __slab_alloc.constprop.0+0x56/0xa0 mm/slub.c:3292 __slab_alloc_node mm/slub.c:3345 [inline] slab_alloc_node mm/slub.c:3442 [inline] __kmem_cache_alloc_node+0x300/0x3d0 mm/slub.c:3491 kmalloc_trace+0x22/0x60 mm/slab_common.c:1062 kmalloc include/linux/slab.h:580 [inline] kzalloc include/linux/slab.h:720 [inline] kernfs_fop_open+0x31a/0xe70 fs/kernfs/file.c:670 do_dentry_open+0x6c7/0x12a0 fs/open.c:882 do_open fs/namei.c:3557 [inline] path_openat+0x1bbc/0x2a50 fs/namei.c:3714 do_filp_open+0x1b6/0x400 fs/namei.c:3741 do_sys_openat2+0x16d/0x4c0 fs/open.c:1310 do_sys_open fs/open.c:1326 [inline] __do_sys_openat fs/open.c:1342 [inline] __se_sys_openat fs/open.c:1337 [inline] __x64_sys_openat+0x13f/0x1f0 fs/open.c:1337 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+0x63/0xcd page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1446 [inline] free_pcp_prepare+0x64a/0xbf0 mm/page_alloc.c:1496 free_unref_page_prepare mm/page_alloc.c:3369 [inline] free_unref_page+0x19/0x3c0 mm/page_alloc.c:3464 qlink_free mm/kasan/quarantine.c:168 [inline] qlist_free_all+0x6a/0x170 mm/kasan/quarantine.c:187 kasan_quarantine_reduce+0x18e/0x220 mm/kasan/quarantine.c:294 __kasan_slab_alloc+0x44/0x60 mm/kasan/common.c:302 kasan_slab_alloc include/linux/kasan.h:201 [inline] slab_post_alloc_hook mm/slab.h:761 [inline] slab_alloc_node mm/slub.c:3452 [inline] kmem_cache_alloc_node+0x1fa/0x410 mm/slub.c:3497 __alloc_skb+0x212/0x310 net/core/skbuff.c:552 alloc_skb include/linux/skbuff.h:1270 [inline] netlink_alloc_large_skb net/netlink/af_netlink.c:1202 [inline] netlink_sendmsg+0x9a2/0xe10 net/netlink/af_netlink.c:1907 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:734 ____sys_sendmsg+0x712/0x8c0 net/socket.c:2476 ___sys_sendmsg+0x110/0x1b0 net/socket.c:2530 __sys_sendmsg+0xf3/0x1c0 net/socket.c:2559 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+0x63/0xcd Memory state around the buggy address: ffff888115c8db00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff888115c8db80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff888115c8dc00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff888115c8dc80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888115c8dd00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ================================================================== --- This report is generated by a bot. 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