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BUG: KMSAN: uninit-value in __flush_smp_call_function_queue+0x343/0x1810 kernel/smp.c:549
 __flush_smp_call_function_queue+0x343/0x1810 kernel/smp.c:549
 generic_smp_call_function_single_interrupt+0x1c/0x30 kernel/smp.c:477
 __sysvec_call_function_single+0x48/0x350 arch/x86/kernel/smp.c:272
 instr_sysvec_call_function_single arch/x86/kernel/smp.c:267 [inline]
 sysvec_call_function_single+0x7c/0x90 arch/x86/kernel/smp.c:267
 asm_sysvec_call_function_single+0x1f/0x30 arch/x86/include/asm/idtentry.h:704
 native_irq_enable arch/x86/include/asm/irqflags.h:42 [inline]
 arch_local_irq_enable arch/x86/include/asm/irqflags.h:119 [inline]
 raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline]
 finish_lock_switch kernel/sched/core.c:5125 [inline]
 finish_task_switch+0x37e/0xbc0 kernel/sched/core.c:5243
 context_switch kernel/sched/core.c:5391 [inline]
 __schedule+0x2930/0x8750 kernel/sched/core.c:7189
 preempt_schedule_notrace+0x54/0xa0 kernel/sched/core.c:7463
 preempt_schedule_notrace_thunk+0x16/0x30 arch/x86/entry/thunk.S:13
 rcu_is_watching+0xaa/0xb0 kernel/rcu/tree.c:753
 kernel_text_address+0xf2/0x1a0 kernel/extable.c:113
 __kernel_text_address+0x28/0x90 kernel/extable.c:79
 unwind_get_return_address+0x5f/0xe0 arch/x86/kernel/unwind_frame.c:19
 arch_stack_walk+0x14a/0x280 arch/x86/kernel/stacktrace.c:26
 stack_trace_save+0xc2/0x100 kernel/stacktrace.c:122
 kmsan_save_stack_with_flags mm/kmsan/core.c:73 [inline]
 kmsan_internal_poison_memory+0x4a/0x90 mm/kmsan/core.c:57
 kmsan_slab_alloc+0xdc/0x160 mm/kmsan/hooks.c:66
 slab_post_alloc_hook mm/slub.c:4577 [inline]
 slab_alloc_node mm/slub.c:4899 [inline]
 kmem_cache_alloc_node_noprof+0x3cd/0x12c0 mm/slub.c:4951
 alloc_vmap_area+0x325/0x2db0 mm/vmalloc.c:2059
 __get_vm_area_node+0x263/0x3b0 mm/vmalloc.c:3226
 __vmalloc_node_range_noprof+0x43c/0x2cd0 mm/vmalloc.c:4024
 __vmalloc_node_noprof mm/vmalloc.c:4124 [inline]
 vzalloc_noprof+0xce/0x140 mm/vmalloc.c:4202
 alloc_counters+0x7c/0x8a0 net/ipv4/netfilter/ip_tables.c:799
 copy_entries_to_user net/ipv4/netfilter/ip_tables.c:821 [inline]
 get_entries net/ipv4/netfilter/ip_tables.c:1022 [inline]
 do_ipt_get_ctl+0xab1/0x2030 net/ipv4/netfilter/ip_tables.c:1668
 nf_getsockopt+0x497/0x4f0 net/netfilter/nf_sockopt.c:116
 ip_getsockopt+0x29d/0x3f0 net/ipv4/ip_sockglue.c:1777
 tcp_getsockopt+0x174/0x1a0 net/ipv4/tcp.c:4867
 sock_common_getsockopt+0x9c/0xf0 net/core/sock.c:3967
 do_sock_getsockopt+0x56c/0xc30 net/socket.c:2487
 __sys_getsockopt net/socket.c:2518 [inline]
 __do_sys_getsockopt net/socket.c:2525 [inline]
 __se_sys_getsockopt net/socket.c:2522 [inline]
 __x64_sys_getsockopt+0x32d/0x520 net/socket.c:2522
 x64_sys_call+0x3ab8/0x3ea0 arch/x86/include/generated/asm/syscalls_64.h:56
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x15d/0x3c0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Local variable warn created at:
 __dquot_alloc_space+0x4d/0x1cd0 fs/quota/dquot.c:1709
 dquot_alloc_space_nodirty include/linux/quotaops.h:292 [inline]
 dquot_alloc_block_nodirty include/linux/quotaops.h:319 [inline]
 shmem_inode_acct_blocks+0x376/0x5d0 mm/shmem.c:242

CPU: 0 UID: 0 PID: 5586 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(lazy) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
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