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BUG: KMSAN: uninit-value in native_apic_mem_write+0x72/0x90 arch/x86/include/asm/apic.h:105
 native_apic_mem_write+0x72/0x90 arch/x86/include/asm/apic.h:105
 apic_eoi arch/x86/include/asm/apic.h:398 [inline]
 ack_APIC_irq arch/x86/include/asm/apic.h:444 [inline]
 __sysvec_reschedule_ipi arch/x86/kernel/smp.c:227 [inline]
 sysvec_reschedule_ipi+0x35/0x120 arch/x86/kernel/smp.c:225
 asm_sysvec_reschedule_ipi+0x1f/0x30 arch/x86/include/asm/idtentry.h:654
 skb_dst_copy include/net/dst.h:283 [inline]
 __copy_skb_header+0x502/0xac0 net/core/skbuff.c:1192
 __skb_clone+0xa2/0xa40 net/core/skbuff.c:1243
 skb_clone+0x4a9/0x670 net/core/skbuff.c:1721
 hsr_create_tagged_frame+0x6f8/0x12f0
 hsr_forward_skb+0x22aa/0x3820 net/hsr/hsr_forward.c:620
 send_hsr_supervision_frame+0x920/0xe20 net/hsr/hsr_device.c:326
 hsr_announce+0x100/0x2a0 net/hsr/hsr_device.c:382
 call_timer_fn+0x8d/0x580 kernel/time/timer.c:1700
 expire_timers kernel/time/timer.c:1751 [inline]
 __run_timers+0x94f/0x11c0 kernel/time/timer.c:2022
 run_timer_softirq+0x75/0xf0 kernel/time/timer.c:2035
 __do_softirq+0x211/0x818 kernel/softirq.c:571
 invoke_softirq kernel/softirq.c:445 [inline]
 __irq_exit_rcu+0x117/0x260 kernel/softirq.c:650
 irq_exit_rcu+0x12/0x20 kernel/softirq.c:662
 sysvec_apic_timer_interrupt+0x9e/0xc0 arch/x86/kernel/apic/apic.c:1107
 asm_sysvec_apic_timer_interrupt+0x1f/0x30 arch/x86/include/asm/idtentry.h:649
 valid_section include/linux/mmzone.h:1783 [inline]
 pfn_valid include/linux/mmzone.h:1879 [inline]
 kmsan_virt_addr_valid arch/x86/include/asm/kmsan.h:82 [inline]
 virt_to_page_or_null mm/kmsan/shadow.c:75 [inline]
 kmsan_get_metadata+0x1cc/0x2c0 mm/kmsan/shadow.c:143
 kmsan_get_shadow_origin_ptr+0x4d/0xa0 mm/kmsan/shadow.c:102
 get_shadow_origin_ptr mm/kmsan/instrumentation.c:36 [inline]
 __msan_metadata_ptr_for_load_8+0x24/0x40 mm/kmsan/instrumentation.c:92
 unwind_get_return_address_ptr+0xd9/0x110 arch/x86/kernel/unwind_frame.c:28
 update_stack_state+0x1bb/0x220 arch/x86/kernel/unwind_frame.c:251
 unwind_next_frame+0x13a/0x3e0 arch/x86/kernel/unwind_frame.c:315
 arch_stack_walk+0x323/0x3c0 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x11a/0x1b0 kernel/stacktrace.c:122
 kmsan_save_stack_with_flags mm/kmsan/core.c:75 [inline]
 kmsan_internal_poison_memory+0x49/0x90 mm/kmsan/core.c:60
 kmsan_slab_free+0xd1/0x130 mm/kmsan/hooks.c:89
 slab_free_hook mm/slub.c:1751 [inline]
 slab_free_freelist_hook mm/slub.c:1807 [inline]
 slab_free mm/slub.c:3787 [inline]
 __kmem_cache_free+0x6c6/0x11b0 mm/slub.c:3800
 kfree+0x1fe/0x4f0 mm/slab_common.c:1020
 kmsan_vmap_pages_range_noflush+0x33b/0x3f0 mm/kmsan/shadow.c:263
 vmap_pages_range_noflush mm/vmalloc.c:619 [inline]
 vmap_pages_range mm/vmalloc.c:640 [inline]
 __vmalloc_area_node mm/vmalloc.c:3089 [inline]
 __vmalloc_node_range+0x27c6/0x3000 mm/vmalloc.c:3227
 __vmalloc_node mm/vmalloc.c:3292 [inline]
 vmalloc+0xe4/0x100 mm/vmalloc.c:3325
 xt_compat_init_offsets+0x26d/0x3f0 net/netfilter/x_tables.c:733
 ebt_compat_init_offsets net/bridge/netfilter/ebtables.c:1828 [inline]
 compat_table_info+0x163/0x1440 net/bridge/netfilter/ebtables.c:1839
 compat_do_ebt_get_ctl net/bridge/netfilter/ebtables.c:2392 [inline]
 do_ebt_get_ctl+0x991/0x3f90 net/bridge/netfilter/ebtables.c:2455
 nf_getsockopt+0x57c/0x5e0 net/netfilter/nf_sockopt.c:116
 ip_getsockopt+0x445/0x650 net/ipv4/ip_sockglue.c:1797
 tcp_getsockopt+0x28d/0x300 net/ipv4/tcp.c:4408
 sock_common_getsockopt+0x13e/0x180 net/core/sock.c:3638
 __sys_getsockopt+0x69f/0xca0 net/socket.c:2293
 __do_compat_sys_socketcall net/compat.c:493 [inline]
 __se_compat_sys_socketcall+0xa02/0x1770 net/compat.c:422
 __ia32_compat_sys_socketcall+0x95/0xc0 net/compat.c:422
 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline]
 __do_fast_syscall_32+0xa2/0x100 arch/x86/entry/common.c:178
 do_fast_syscall_32+0x37/0x80 arch/x86/entry/common.c:203
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:246
 entry_SYSENTER_compat_after_hwframe+0x70/0x82

Uninit was created at:
 slab_post_alloc_hook+0x271/0xf70 mm/slab.h:766
 slab_alloc_node mm/slub.c:3452 [inline]
 slab_alloc mm/slub.c:3460 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3467 [inline]
 kmem_cache_alloc+0x586/0xb40 mm/slub.c:3476
 skb_clone+0x3ec/0x670 net/core/skbuff.c:1714
 hsr_create_tagged_frame+0x6f8/0x12f0
 hsr_forward_skb+0x22aa/0x3820 net/hsr/hsr_forward.c:620
 send_hsr_supervision_frame+0x920/0xe20 net/hsr/hsr_device.c:326
 hsr_announce+0x100/0x2a0 net/hsr/hsr_device.c:382
 call_timer_fn+0x8d/0x580 kernel/time/timer.c:1700
 expire_timers kernel/time/timer.c:1751 [inline]
 __run_timers+0x94f/0x11c0 kernel/time/timer.c:2022
 run_timer_softirq+0x75/0xf0 kernel/time/timer.c:2035
 __do_softirq+0x211/0x818 kernel/softirq.c:571

CPU: 0 PID: 5043 Comm: syz-executor.3 Not tainted 6.2.0-syzkaller-81151-g224e1375d540 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
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