numa_remove_cpu cpu 1 node 0: mask now 0,2-3 numa_remove_cpu cpu 1 node 1: mask now 0,2-3 ================================================================== BUG: KASAN: slab-use-after-free in irq_can_move_pcntxt kernel/irq/internals.h:328 [inline] BUG: KASAN: slab-use-after-free in migrate_one_irq kernel/irq/cpuhotplug.c:57 [inline] BUG: KASAN: slab-use-after-free in irq_migrate_all_off_this_cpu+0xaaf/0xc30 kernel/irq/cpuhotplug.c:181 Read of size 8 at addr ffff88801477a1a8 by task migration/1/28 CPU: 1 UID: 0 PID: 28 Comm: migration/1 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Stopper: multi_cpu_stop+0x0/0x4b0 kernel/stop_machine.c:199 <- __stop_cpus.constprop.0+0xb1/0x140 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:378 [inline] print_report+0x13d/0x4b0 mm/kasan/report.c:482 kasan_report+0xdf/0x1c0 mm/kasan/report.c:595 irq_can_move_pcntxt kernel/irq/internals.h:328 [inline] migrate_one_irq kernel/irq/cpuhotplug.c:57 [inline] irq_migrate_all_off_this_cpu+0xaaf/0xc30 kernel/irq/cpuhotplug.c:181 fixup_irqs+0x2b/0x280 arch/x86/kernel/irq.c:474 cpu_disable_common arch/x86/kernel/smpboot.c:1371 [inline] native_cpu_disable+0x59/0x80 arch/x86/kernel/smpboot.c:1383 __cpu_disable arch/x86/include/asm/smp.h:73 [inline] take_cpu_down+0xb6/0x190 kernel/cpu.c:1282 multi_cpu_stop+0x16a/0x4b0 kernel/stop_machine.c:239 cpu_stopper_thread+0x21e/0x450 kernel/stop_machine.c:510 smpboot_thread_fn+0x3d3/0xab0 kernel/smpboot.c:160 kthread+0x373/0x450 kernel/kthread.c:436 ret_from_fork+0x730/0xd60 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Allocated by task 5885: kasan_save_stack+0x30/0x50 mm/kasan/common.c:57 kasan_save_track+0x14/0x30 mm/kasan/common.c:78 poison_kmalloc_redzone mm/kasan/common.c:398 [inline] __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:415 kasan_kmalloc include/linux/kasan.h:263 [inline] __do_kmalloc_node mm/slub.c:5414 [inline] __kmalloc_node_track_caller_noprof+0x33d/0x870 mm/slub.c:5545 alloc_dr drivers/base/devres.c:141 [inline] devm_kmalloc+0xa5/0x2b0 drivers/base/devres.c:951 devm_kzalloc include/linux/device/devres.h:50 [inline] hidpp_probe+0xa8/0x1ba0 drivers/hid/hid-logitech-hidpp.c:4721 __hid_device_probe drivers/hid/hid-core.c:2839 [inline] hid_device_probe+0x4fe/0x850 drivers/hid/hid-core.c:2878 call_driver_probe drivers/base/dd.c:628 [inline] really_probe+0x241/0xa60 drivers/base/dd.c:706 __driver_probe_device+0x210/0x460 drivers/base/dd.c:868 driver_probe_device+0x4a/0x140 drivers/base/dd.c:898 __device_attach_driver+0x1df/0x320 drivers/base/dd.c:1026 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:500 __device_attach+0x1e4/0x4d0 drivers/base/dd.c:1098 device_initial_probe+0xaf/0xd0 drivers/base/dd.c:1153 bus_probe_device+0x64/0x160 drivers/base/bus.c:620 device_add+0x121d/0x1970 drivers/base/core.c:3776 hid_add_device+0x2bf/0x440 drivers/hid/hid-core.c:3065 uhid_device_add_worker+0x3a/0x70 drivers/hid/uhid.c:73 process_one_work+0xac7/0x1b10 kernel/workqueue.c:3387 process_scheduled_works kernel/workqueue.c:3470 [inline] worker_thread+0x5ef/0xe50 kernel/workqueue.c:3551 kthread+0x373/0x450 kernel/kthread.c:436 ret_from_fork+0x730/0xd60 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Freed by task 5885: kasan_save_stack+0x30/0x50 mm/kasan/common.c:57 kasan_save_track+0x14/0x30 mm/kasan/common.c:78 kasan_save_free_info+0x3b/0x70 mm/kasan/generic.c:584 poison_slab_object mm/kasan/common.c:253 [inline] __kasan_slab_free+0x5f/0x80 mm/kasan/common.c:285 kasan_slab_free include/linux/kasan.h:235 [inline] slab_free_hook mm/slub.c:2748 [inline] slab_free mm/slub.c:6499 [inline] kfree+0x22b/0x6d0 mm/slub.c:6792 free_node drivers/base/devres.c:50 [inline] free_dr drivers/base/devres.c:241 [inline] devres_free drivers/base/devres.c:256 [inline] devres_destroy drivers/base/devres.c:443 [inline] devm_kfree+0xdd/0x110 drivers/base/devres.c:1182 hidpp_probe+0x66c/0x1ba0 drivers/hid/hid-logitech-hidpp.c:4745 __hid_device_probe drivers/hid/hid-core.c:2839 [inline] hid_device_probe+0x4fe/0x850 drivers/hid/hid-core.c:2878 call_driver_probe drivers/base/dd.c:628 [inline] really_probe+0x241/0xa60 drivers/base/dd.c:706 __driver_probe_device+0x210/0x460 drivers/base/dd.c:868 driver_probe_device+0x4a/0x140 drivers/base/dd.c:898 __device_attach_driver+0x1df/0x320 drivers/base/dd.c:1026 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:500 __device_attach+0x1e4/0x4d0 drivers/base/dd.c:1098 device_initial_probe+0xaf/0xd0 drivers/base/dd.c:1153 bus_probe_device+0x64/0x160 drivers/base/bus.c:620 device_add+0x121d/0x1970 drivers/base/core.c:3776 hid_add_device+0x2bf/0x440 drivers/hid/hid-core.c:3065 uhid_device_add_worker+0x3a/0x70 drivers/hid/uhid.c:73 process_one_work+0xac7/0x1b10 kernel/workqueue.c:3387 process_scheduled_works kernel/workqueue.c:3470 [inline] worker_thread+0x5ef/0xe50 kernel/workqueue.c:3551 kthread+0x373/0x450 kernel/kthread.c:436 ret_from_fork+0x730/0xd60 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 The buggy address belongs to the object at ffff88801477a000 which belongs to the cache kmalloc-1k of size 1024 The buggy address is located 424 bytes inside of freed 1024-byte region [ffff88801477a000, ffff88801477a400) The buggy address belongs to the physical page: page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x14778 head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff) page_type: f5(slab) raw: 00fff00000000040 ffff88801c042dc0 dead000000000100 dead000000000122 raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000 head: 00fff00000000040 ffff88801c042dc0 dead000000000100 dead000000000122 head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000 head: 00fff00000000003 fffffffffffffe01 00000000ffffffff 00000000ffffffff head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 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 5737, tgid 5737 (syz-executor), ts 40317303665 set_page_owner include/linux/page_owner.h:33 [inline] post_alloc_hook+0xfd/0x120 mm/page_alloc.c:1871 prep_new_page mm/page_alloc.c:1879 [inline] get_page_from_freelist+0x110d/0x35b0 mm/page_alloc.c:3943 __alloc_frozen_pages_noprof+0x2eb/0x3300 mm/page_alloc.c:5436 alloc_slab_page mm/slub.c:3347 [inline] allocate_slab mm/slub.c:3462 [inline] new_slab+0xa9/0x6e0 mm/slub.c:3513 refill_objects+0xe3/0x410 mm/slub.c:7410 refill_sheaf mm/slub.c:2885 [inline] __pcs_replace_empty_main+0x35e/0x650 mm/slub.c:4774 alloc_from_pcs mm/slub.c:4850 [inline] slab_alloc_node mm/slub.c:4984 [inline] __do_kmalloc_node mm/slub.c:5413 [inline] __kmalloc_node_noprof+0x6ad/0x880 mm/slub.c:5426 _kmalloc_node_noprof include/linux/slab.h:1200 [inline] qdisc_alloc+0xbb/0xb30 net/sched/sch_generic.c:998 qdisc_create_dflt+0x93/0x490 net/sched/sch_generic.c:1053 attach_one_default_qdisc net/sched/sch_generic.c:1219 [inline] netdev_for_each_tx_queue include/linux/netdevice.h:2749 [inline] attach_default_qdiscs net/sched/sch_generic.c:1237 [inline] dev_activate+0x64f/0xce0 net/sched/sch_generic.c:1296 __dev_open+0x490/0x8f0 net/core/dev.c:1733 __dev_change_flags+0x596/0x850 net/core/dev.c:9812 netif_change_flags+0x8d/0x160 net/core/dev.c:9877 do_setlink.isra.0+0x1ac4/0x3e60 net/core/rtnetlink.c:3266 rtnl_changelink net/core/rtnetlink.c:3905 [inline] __rtnl_newlink net/core/rtnetlink.c:4076 [inline] rtnl_newlink+0x13c1/0x2620 net/core/rtnetlink.c:4215 rtnetlink_rcv_msg+0x95e/0xe90 net/core/rtnetlink.c:7132 page last free pid 5734 tgid 5734 ts 40297906957 stack trace: reset_page_owner include/linux/page_owner.h:26 [inline] __free_pages_prepare mm/page_alloc.c:1418 [inline] __free_frozen_pages+0x79f/0x10f0 mm/page_alloc.c:2962 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x47/0xf0 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x1a0/0x1f0 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:350 kasan_slab_alloc include/linux/kasan.h:253 [inline] slab_post_alloc_hook mm/slub.c:4683 [inline] slab_alloc_node mm/slub.c:4996 [inline] kmem_cache_alloc_node_noprof+0x282/0x6e0 mm/slub.c:5068 __alloc_skb+0x140/0x710 net/core/skbuff.c:704 alloc_skb include/linux/skbuff.h:1384 [inline] nlmsg_new include/net/netlink.h:1055 [inline] rtmsg_ifinfo_build_skb+0x81/0x260 net/core/rtnetlink.c:4580 rtmsg_ifinfo_event net/core/rtnetlink.c:4622 [inline] rtmsg_ifinfo_event net/core/rtnetlink.c:4612 [inline] rtnetlink_event+0x137/0x1f0 net/core/rtnetlink.c:7192 notifier_call_chain+0x99/0x3f0 kernel/notifier.c:85 call_netdevice_notifiers_info+0xbe/0x110 net/core/dev.c:2275 call_netdevice_notifiers_extack net/core/dev.c:2313 [inline] call_netdevice_notifiers net/core/dev.c:2327 [inline] netif_set_mac_address+0x370/0x4a0 net/core/dev.c:10056 do_setlink.isra.0+0x75f/0x3e60 net/core/rtnetlink.c:3218 rtnl_changelink net/core/rtnetlink.c:3905 [inline] __rtnl_newlink net/core/rtnetlink.c:4076 [inline] rtnl_newlink+0x13c1/0x2620 net/core/rtnetlink.c:4215 rtnetlink_rcv_msg+0x95e/0xe90 net/core/rtnetlink.c:7132 netlink_rcv_skb+0x159/0x420 net/netlink/af_netlink.c:2556 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x585/0x850 net/netlink/af_netlink.c:1345 Memory state around the buggy address: ffff88801477a080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88801477a100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff88801477a180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff88801477a200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88801477a280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ==================================================================