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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
 kmsan_get_context mm/kmsan/kmsan.h:106 [inline]
 kmsan_enter_runtime mm/kmsan/kmsan.h:136 [inline]
 __msan_chain_origin+0x91/0x140 mm/kmsan/instrumentation.c:250
 __skb_dst_copy include/net/dst.h:275 [inline]
 skb_dst_copy include/net/dst.h:283 [inline]
 __copy_skb_header+0x50c/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
 __msan_metadata_ptr_for_load_8+0x30/0x40 mm/kmsan/instrumentation.c:92
 do_open fs/namei.c:3540 [inline]
 path_openat+0x418c/0x5bc0 fs/namei.c:3714
 do_filp_open+0x309/0x760 fs/namei.c:3741
 do_sys_openat2+0x257/0x8e0 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+0x35d/0x3c0 fs/open.c:1337
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

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: 1 PID: 5027 Comm: syz-executor.4 Not tainted 6.2.0-rc8-syzkaller-80999-g31b504f219a9 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
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