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BUG: KMSAN: uninit-value in __flush_smp_call_function_queue+0x362/0x18e0 kernel/smp.c:535
 __flush_smp_call_function_queue+0x362/0x18e0 kernel/smp.c:535
 generic_smp_call_function_single_interrupt+0x1c/0x30 kernel/smp.c:463
 __sysvec_call_function_single+0x4b/0x3e0 arch/x86/kernel/smp.c:271
 instr_sysvec_call_function_single arch/x86/kernel/smp.c:266 [inline]
 sysvec_call_function_single+0x7c/0x90 arch/x86/kernel/smp.c:266
 asm_sysvec_call_function_single+0x1f/0x30 arch/x86/include/asm/idtentry.h:704
 kmsan_metadata_is_contiguous+0xc/0x1e0 mm/kmsan/core.c:330
 kmsan_get_shadow_origin_ptr+0x27/0xb0 mm/kmsan/shadow.c:96
 get_shadow_origin_ptr mm/kmsan/instrumentation.c:38 [inline]
 __msan_metadata_ptr_for_load_8+0x24/0x40 mm/kmsan/instrumentation.c:94
 __anon_vma_interval_tree_insert mm/interval_tree.c:71 [inline]
 anon_vma_interval_tree_insert+0x18c/0x5d0 mm/interval_tree.c:82
 anon_vma_clone+0xaba/0xf00 mm/rmap.c:357
 anon_vma_fork+0x1f0/0xba0 mm/rmap.c:404
 dup_mmap+0xe0b/0x3050 mm/mmap.c:1804
 dup_mm kernel/fork.c:1531 [inline]
 copy_mm+0x232/0x9b0 kernel/fork.c:1583
 copy_process+0x2cfa/0x6330 kernel/fork.c:2223
 kernel_clone+0x434/0x1100 kernel/fork.c:2653
 __do_sys_clone kernel/fork.c:2794 [inline]
 __se_sys_clone kernel/fork.c:2778 [inline]
 __x64_sys_clone+0x253/0x360 kernel/fork.c:2778
 x64_sys_call+0x157e/0x3ea0 arch/x86/include/generated/asm/syscalls_64.h:57
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x134/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Local variable reuse.i created at:
 mas_wr_node_store lib/maple_tree.c:3495 [inline]
 mas_wr_store_entry+0x14bd/0x96d0 lib/maple_tree.c:3764
 mas_store_prealloc+0x1834/0x1e60 lib/maple_tree.c:5169

CPU: 0 UID: 0 PID: 5426 Comm: dhcpcd Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
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