syzbot

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BUG: KMSAN: uninit-value in memcmp lib/string.c:665 [inline]
BUG: KMSAN: uninit-value in bcmp+0xc3/0x1c0 lib/string.c:697
 memcmp lib/string.c:665 [inline]
 bcmp+0xc3/0x1c0 lib/string.c:697
 iowarrior_callback+0x3fe/0xa30 drivers/usb/misc/iowarrior.c:185
 __usb_hcd_giveback_urb+0x572/0x840 drivers/usb/core/hcd.c:1650
 usb_hcd_giveback_urb+0x157/0x720 drivers/usb/core/hcd.c:1734
 dummy_timer+0xd3f/0x6aa0 drivers/usb/gadget/udc/dummy_hcd.c:1987
 __run_hrtimer kernel/time/hrtimer.c:1689 [inline]
 __hrtimer_run_queues+0x564/0xe40 kernel/time/hrtimer.c:1753
 hrtimer_interrupt+0x3ab/0x1490 kernel/time/hrtimer.c:1815
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
 __sysvec_apic_timer_interrupt+0xa6/0x3a0 arch/x86/kernel/apic/apic.c:1049
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0x40/0x90 arch/x86/kernel/apic/apic.c:1043
 asm_sysvec_apic_timer_interrupt+0x1f/0x30 arch/x86/include/asm/idtentry.h:702
 __msan_metadata_ptr_for_load_8+0x5/0x40 mm/kmsan/instrumentation.c:94
 __bpf_prog_run32+0xc2/0xf0 kernel/bpf/core.c:2251
 bpf_dispatcher_nop_func include/linux/bpf.h:1243 [inline]
 __bpf_prog_run include/linux/filter.h:691 [inline]
 bpf_prog_run include/linux/filter.h:698 [inline]
 bpf_prog_run_pin_on_cpu include/linux/filter.h:715 [inline]
 bpf_prog_run_clear_cb include/linux/filter.h:956 [inline]
 run_filter+0x150/0x3f0 net/packet/af_packet.c:2148
 packet_rcv+0x57b/0x1f20 net/packet/af_packet.c:2221
 deliver_skb net/core/dev.c:2237 [inline]
 deliver_ptype_list_skb net/core/dev.c:2252 [inline]
 __netif_receive_skb_core+0x53f9/0x6c90 net/core/dev.c:5612
 __netif_receive_skb_list_core+0x31e/0x1670 net/core/dev.c:5737
 __netif_receive_skb_list net/core/dev.c:5804 [inline]
 netif_receive_skb_list_internal+0x1085/0x1700 net/core/dev.c:5896
 gro_normal_list include/net/gro.h:515 [inline]
 napi_complete_done+0x425/0x880 net/core/dev.c:6247
 virtqueue_napi_complete drivers/net/virtio_net.c:694 [inline]
 virtnet_poll+0x5b9d/0x6a20 drivers/net/virtio_net.c:2826
 __napi_poll+0xe7/0x980 net/core/dev.c:6772
 napi_poll net/core/dev.c:6841 [inline]
 net_rx_action+0xa5a/0x19b0 net/core/dev.c:6963
 handle_softirqs+0x1ce/0x800 kernel/softirq.c:554
 __do_softirq kernel/softirq.c:588 [inline]
 invoke_softirq kernel/softirq.c:428 [inline]
 __irq_exit_rcu+0x68/0x120 kernel/softirq.c:637
 irq_exit_rcu+0x12/0x20 kernel/softirq.c:649
 common_interrupt+0x94/0xa0 arch/x86/kernel/irq.c:278
 asm_common_interrupt+0x2b/0x40 arch/x86/include/asm/idtentry.h:693
 smap_save arch/x86/include/asm/smap.h:51 [inline]
 get_shadow_origin_ptr mm/kmsan/instrumentation.c:35 [inline]
 __msan_metadata_ptr_for_store_8+0x18/0x40 mm/kmsan/instrumentation.c:94
 plist_check_list+0x78/0xa30 lib/plist.c:46
 plist_check_head lib/plist.c:60 [inline]
 plist_del+0x61d/0x8a0 lib/plist.c:142
 __futex_unqueue+0x99/0x120 kernel/futex/core.c:521
 __futex_wake_mark kernel/futex/waitwake.c:115 [inline]
 futex_wake_mark+0x137/0x320 kernel/futex/waitwake.c:140
 futex_wake+0x600/0x8f0 kernel/futex/waitwake.c:192
 do_futex+0x380/0x4a0 kernel/futex/syscalls.c:107
 __do_sys_futex kernel/futex/syscalls.c:179 [inline]
 __se_sys_futex+0x22c/0x6f0 kernel/futex/syscalls.c:160
 __x64_sys_futex+0x11f/0x1a0 kernel/futex/syscalls.c:160
 x64_sys_call+0x29cc/0x3ba0 arch/x86/include/generated/asm/syscalls_64.h:203
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Uninit was created at:
 slab_post_alloc_hook mm/slub.c:3994 [inline]
 slab_alloc_node mm/slub.c:4037 [inline]
 __do_kmalloc_node mm/slub.c:4157 [inline]
 __kmalloc_noprof+0x661/0xf30 mm/slub.c:4170
 kmalloc_noprof include/linux/slab.h:685 [inline]
 kmalloc_array_noprof include/linux/slab.h:726 [inline]
 iowarrior_probe+0x10ea/0x1b90 drivers/usb/misc/iowarrior.c:836
 usb_probe_interface+0xd6f/0x1350 drivers/usb/core/driver.c:399
 really_probe+0x4db/0xd90 drivers/base/dd.c:657
 __driver_probe_device+0x2ab/0x5d0 drivers/base/dd.c:799
 driver_probe_device+0x72/0x890 drivers/base/dd.c:829
 __device_attach_driver+0x568/0x9e0 drivers/base/dd.c:957
 bus_for_each_drv+0x403/0x620 drivers/base/bus.c:457
 __device_attach+0x3c1/0x650 drivers/base/dd.c:1029
 device_initial_probe+0x32/0x40 drivers/base/dd.c:1078
 bus_probe_device+0x3dc/0x5c0 drivers/base/bus.c:532
 device_add+0x13aa/0x1ba0 drivers/base/core.c:3682
 usb_set_configuration+0x31c9/0x38d0 drivers/usb/core/message.c:2210
 usb_generic_driver_probe+0x109/0x2a0 drivers/usb/core/generic.c:254
 usb_probe_device+0x3a7/0x690 drivers/usb/core/driver.c:294
 really_probe+0x4db/0xd90 drivers/base/dd.c:657
 __driver_probe_device+0x2ab/0x5d0 drivers/base/dd.c:799
 driver_probe_device+0x72/0x890 drivers/base/dd.c:829
 __device_attach_driver+0x568/0x9e0 drivers/base/dd.c:957
 bus_for_each_drv+0x403/0x620 drivers/base/bus.c:457
 __device_attach+0x3c1/0x650 drivers/base/dd.c:1029
 device_initial_probe+0x32/0x40 drivers/base/dd.c:1078
 bus_probe_device+0x3dc/0x5c0 drivers/base/bus.c:532
 device_add+0x13aa/0x1ba0 drivers/base/core.c:3682
 usb_new_device+0x15f4/0x2470 drivers/usb/core/hub.c:2651
 hub_port_connect drivers/usb/core/hub.c:5521 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5661 [inline]
 port_event drivers/usb/core/hub.c:5821 [inline]
 hub_event+0x4ff8/0x72d0 drivers/usb/core/hub.c:5903
 process_one_work kernel/workqueue.c:3231 [inline]
 process_scheduled_works+0xae0/0x1c40 kernel/workqueue.c:3312
 worker_thread+0xea5/0x1520 kernel/workqueue.c:3390
 kthread+0x3dd/0x540 kernel/kthread.c:389
 ret_from_fork+0x6d/0x90 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

CPU: 0 UID: 0 PID: 8442 Comm: syz.1.610 Not tainted 6.11.0-rc3-syzkaller-00036-g9d5906799f7d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
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