===================================================== 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:275 [inline] skb_dst_copy include/net/dst.h:283 [inline] __copy_skb_header+0x1ed/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 d_same_name fs/dcache.c:2263 [inline] __d_lookup+0x438/0x9d0 fs/dcache.c:2494 lookup_fast+0xf7/0x940 fs/namei.c:1643 walk_component fs/namei.c:1989 [inline] link_path_walk+0x973/0x19d0 fs/namei.c:2320 path_lookupat+0x139/0x890 fs/namei.c:2473 filename_lookup+0x370/0xa50 fs/namei.c:2503 vfs_statx+0x1de/0x9a0 fs/stat.c:232 vfs_fstatat fs/stat.c:270 [inline] __do_sys_newfstatat fs/stat.c:440 [inline] __se_sys_newfstatat+0x1ba/0xa20 fs/stat.c:434 __x64_sys_newfstatat+0x122/0x170 fs/stat.c:434 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: 0 PID: 4373 Comm: udevd Not tainted 6.2.0-rc8-syzkaller-80999-g31b504f219a9 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 =====================================================