[drm:udl_init.cold] *ERROR* Unrecognized vendor firmware descriptor [drm:udl_init] *ERROR* Selecting channel failed [drm] Initialized udl 0.0.1 20120220 for 1-1:0.0 on minor 2 [drm] Initialized udl on minor 2 [drm:udl_get_edid_block] *ERROR* Read EDID byte 0 failed err ffffffb9 udl 1-1:0.0: [drm] Cannot find any crtc or sizes usb 1-1: USB disconnect, device number 2 ================================================================== BUG: KASAN: use-after-free in __list_add_valid+0x81/0xa0 lib/list_debug.c:23 Read of size 8 at addr ffff88801b05aac8 by task kworker/1:1/26 CPU: 1 PID: 26 Comm: kworker/1:1 Not tainted 5.19.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 Workqueue: usb_hub_wq hub_event 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 __list_add_valid+0x81/0xa0 lib/list_debug.c:23 __list_add include/linux/list.h:69 [inline] list_add include/linux/list.h:88 [inline] list_move include/linux/list.h:218 [inline] udl_get_urb_timeout+0x1ef/0x4f0 drivers/gpu/drm/udl/udl_main.c:250 udl_free_urb_list+0x136/0x220 drivers/gpu/drm/udl/udl_main.c:156 udl_drop_usb+0xbd/0x150 drivers/gpu/drm/udl/udl_main.c:357 udl_usb_disconnect+0x3a/0x50 drivers/gpu/drm/udl/udl_drv.c:114 usb_unbind_interface+0x183/0x7e0 drivers/usb/core/driver.c:458 __device_release_driver drivers/base/dd.c:1222 [inline] device_release_driver_internal+0x3bc/0x600 drivers/base/dd.c:1248 bus_remove_device+0x295/0x550 drivers/base/bus.c:529 device_del+0x48d/0xb80 drivers/base/core.c:3615 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:5663 [inline] hub_event+0xb46/0x39d0 drivers/usb/core/hub.c:5745 process_one_work+0x865/0x13d0 kernel/workqueue.c:2289 process_scheduled_works kernel/workqueue.c:2352 [inline] worker_thread+0x738/0xec0 kernel/workqueue.c:2438 kthread+0x299/0x340 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:302 Allocated by task 26: 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:600 [inline] kzalloc include/linux/slab.h:733 [inline] udl_alloc_urb_list drivers/gpu/drm/udl/udl_main.c:190 [inline] udl_init+0x6ae/0xb80 drivers/gpu/drm/udl/udl_main.c:330 udl_driver_create drivers/gpu/drm/udl/udl_drv.c:79 [inline] udl_usb_probe+0x31/0xa0 drivers/gpu/drm/udl/udl_drv.c:94 usb_probe_interface+0x274/0x6a0 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:555 [inline] really_probe+0x1c1/0xa40 drivers/base/dd.c:634 __driver_probe_device+0x2a6/0x460 drivers/base/dd.c:764 driver_probe_device+0x44/0x110 drivers/base/dd.c:794 __device_attach_driver+0x185/0x250 drivers/base/dd.c:917 bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:427 __device_attach+0x19e/0x440 drivers/base/dd.c:989 bus_probe_device+0x19d/0x250 drivers/base/bus.c:487 device_add+0xa14/0x1b80 drivers/base/core.c:3428 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:555 [inline] really_probe+0x1c1/0xa40 drivers/base/dd.c:634 __driver_probe_device+0x2a6/0x460 drivers/base/dd.c:764 driver_probe_device+0x44/0x110 drivers/base/dd.c:794 __device_attach_driver+0x185/0x250 drivers/base/dd.c:917 bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:427 __device_attach+0x19e/0x440 drivers/base/dd.c:989 bus_probe_device+0x19d/0x250 drivers/base/bus.c:487 device_add+0xa14/0x1b80 drivers/base/core.c:3428 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:5663 [inline] hub_event+0x114d/0x39d0 drivers/usb/core/hub.c:5745 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:302 Freed by task 26: 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:1754 [inline] slab_free_freelist_hook+0x8b/0x1c0 mm/slub.c:1780 slab_free mm/slub.c:3536 [inline] kfree+0xd6/0x4d0 mm/slub.c:4584 udl_free_urb_list+0x11f/0x220 drivers/gpu/drm/udl/udl_main.c:164 udl_drop_usb+0xbd/0x150 drivers/gpu/drm/udl/udl_main.c:357 udl_usb_disconnect+0x3a/0x50 drivers/gpu/drm/udl/udl_drv.c:114 usb_unbind_interface+0x183/0x7e0 drivers/usb/core/driver.c:458 __device_release_driver drivers/base/dd.c:1222 [inline] device_release_driver_internal+0x3bc/0x600 drivers/base/dd.c:1248 bus_remove_device+0x295/0x550 drivers/base/bus.c:529 device_del+0x48d/0xb80 drivers/base/core.c:3615 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:5663 [inline] hub_event+0xb46/0x39d0 drivers/usb/core/hub.c:5745 process_one_work+0x865/0x13d0 kernel/workqueue.c:2289 process_scheduled_works kernel/workqueue.c:2352 [inline] worker_thread+0x738/0xec0 kernel/workqueue.c:2438 kthread+0x299/0x340 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:302 The buggy address belongs to the object at ffff88801b05aac0 which belongs to the cache kmalloc-32 of size 32 The buggy address is located 8 bytes inside of 32-byte region [ffff88801b05aac0, ffff88801b05aae0) The buggy address belongs to the physical page: page:ffffea00006c1680 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1b05a flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000200 dead000000000100 dead000000000122 ffff888010841500 raw: 0000000000000000 0000000080400040 00000001ffffffff 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 0x12cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY), pid 3606, tgid 3606 (syz-executor.0), ts 39280832201, free_ts 39241858233 prep_new_page mm/page_alloc.c:2456 [inline] get_page_from_freelist+0x19d3/0x3b30 mm/page_alloc.c:4198 __alloc_pages+0x1c7/0x510 mm/page_alloc.c:5426 alloc_slab_page mm/slub.c:1824 [inline] allocate_slab+0x26c/0x3c0 mm/slub.c:1969 new_slab mm/slub.c:2029 [inline] ___slab_alloc+0x9bc/0xe10 mm/slub.c:3031 __slab_alloc.constprop.0+0x4d/0xa0 mm/slub.c:3118 slab_alloc_node mm/slub.c:3209 [inline] slab_alloc mm/slub.c:3251 [inline] __kmalloc+0x318/0x350 mm/slub.c:4442 kmalloc include/linux/slab.h:605 [inline] do_setlink+0x11e1/0x2dd0 net/core/rtnetlink.c:2727 __rtnl_newlink+0x94d/0x14c0 net/core/rtnetlink.c:3546 rtnl_newlink+0x5a/0x90 net/core/rtnetlink.c:3593 rtnetlink_rcv_msg+0x32d/0x9a0 net/core/rtnetlink.c:6089 netlink_rcv_skb+0x118/0x370 net/netlink/af_netlink.c:2501 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:714 [inline] sock_sendmsg+0xab/0xe0 net/socket.c:734 __sys_sendto+0x1a5/0x270 net/socket.c:2119 __do_sys_sendto net/socket.c:2131 [inline] __se_sys_sendto net/socket.c:2127 [inline] __x64_sys_sendto+0xd8/0x1b0 net/socket.c:2127 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1371 [inline] free_pcp_prepare+0x549/0xd20 mm/page_alloc.c:1421 free_unref_page_prepare mm/page_alloc.c:3343 [inline] free_unref_page+0x19/0x6a0 mm/page_alloc.c:3438 qlink_free mm/kasan/quarantine.c:168 [inline] qlist_free_all+0x6a/0x170 mm/kasan/quarantine.c:187 kasan_quarantine_reduce+0x180/0x200 mm/kasan/quarantine.c:294 __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:750 [inline] slab_alloc_node mm/slub.c:3243 [inline] slab_alloc mm/slub.c:3251 [inline] kmem_cache_alloc_trace+0x26d/0x3f0 mm/slub.c:3282 kmalloc include/linux/slab.h:600 [inline] netdevice_queue_work drivers/infiniband/core/roce_gid_mgmt.c:643 [inline] netdevice_event+0x16a/0x770 drivers/infiniband/core/roce_gid_mgmt.c:802 notifier_call_chain+0x94/0x170 kernel/notifier.c:87 call_netdevice_notifiers_extack net/core/dev.c:1983 [inline] call_netdevice_notifiers net/core/dev.c:1997 [inline] dev_set_mac_address+0x261/0x360 net/core/dev.c:8793 dev_set_mac_address_user+0x28/0x40 net/core/dev.c:8807 do_setlink+0x12af/0x2dd0 net/core/rtnetlink.c:2735 __rtnl_newlink+0x94d/0x14c0 net/core/rtnetlink.c:3546 rtnl_newlink+0x5a/0x90 net/core/rtnetlink.c:3593 rtnetlink_rcv_msg+0x32d/0x9a0 net/core/rtnetlink.c:6089 netlink_rcv_skb+0x118/0x370 net/netlink/af_netlink.c:2501 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x433/0x710 net/netlink/af_netlink.c:1345 Memory state around the buggy address: ffff88801b05a980: 00 00 00 00 fc fc fc fc 00 00 00 00 fc fc fc fc ffff88801b05aa00: 00 00 00 fc fc fc fc fc 00 00 00 00 fc fc fc fc >ffff88801b05aa80: 00 00 00 00 fc fc fc fc fa fb fb fb fc fc fc fc ^ ffff88801b05ab00: 00 00 00 00 fc fc fc fc fa fb fb fb fc fc fc fc ffff88801b05ab80: 00 00 00 00 fc fc fc fc fa fb fb fb fc fc fc fc ==================================================================