=====================================================
BUG: KMSAN: uninit-value in __flush_smp_call_function_queue+0x343/0x1710 kernel/smp.c:535
 __flush_smp_call_function_queue+0x343/0x1710 kernel/smp.c:535
 generic_smp_call_function_single_interrupt+0x1c/0x30 kernel/smp.c:463
 __sysvec_call_function_single+0x45/0x310 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
 __nr_to_section include/linux/mmzone.h:1963 [inline]
 __pfn_to_section include/linux/mmzone.h:2101 [inline]
 pfn_valid include/linux/mmzone.h:2183 [inline]
 kmsan_virt_addr_valid arch/x86/include/asm/kmsan.h:94 [inline]
 virt_to_page_or_null+0x99/0x170 mm/kmsan/shadow.c:75
 kmsan_get_metadata+0xf1/0x160 mm/kmsan/shadow.c:141
 kmsan_get_shadow_origin_ptr+0x4a/0xb0 mm/kmsan/shadow.c:102
 get_shadow_origin_ptr mm/kmsan/instrumentation.c:38 [inline]
 __msan_metadata_ptr_for_load_8+0x24/0x40 mm/kmsan/instrumentation.c:94
 __unwind_start+0x35c/0x530 arch/x86/kernel/unwind_frame.c:416
 unwind_start arch/x86/include/asm/unwind.h:64 [inline]
 arch_stack_walk+0xfc/0x280 arch/x86/kernel/stacktrace.c:24
 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_free+0xce/0x140 mm/kmsan/hooks.c:87
 slab_free_hook mm/slub.c:2466 [inline]
 slab_free mm/slub.c:6674 [inline]
 kfree+0x32b/0x1400 mm/slub.c:6886
 tomoyo_path_perm+0x7e2/0x9a0 security/tomoyo/file.c:847
 tomoyo_inode_getattr+0x35/0x40 security/tomoyo/tomoyo.c:123
 security_inode_getattr+0x16e/0x590 security/security.c:1869
 vfs_getattr+0x41/0xf0 fs/stat.c:259
 vfs_statx_path+0x49/0x380 fs/stat.c:299
 vfs_statx+0x142/0x290 fs/stat.c:356
 vfs_fstatat+0x2dc/0x400 fs/stat.c:373
 __do_sys_newfstatat fs/stat.c:538 [inline]
 __se_sys_newfstatat+0x64/0x870 fs/stat.c:532
 __x64_sys_newfstatat+0xbd/0x120 fs/stat.c:532
 x64_sys_call+0x3824/0x3ea0 arch/x86/include/generated/asm/syscalls_64.h:263
 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 warn created at:
 __dquot_alloc_space+0x4d/0x1cd0 fs/quota/dquot.c:1687
 dquot_alloc_space_nodirty include/linux/quotaops.h:299 [inline]
 dquot_alloc_block_nodirty include/linux/quotaops.h:326 [inline]
 shmem_inode_acct_blocks+0x376/0x5d0 mm/shmem.c:243

CPU: 0 UID: 0 PID: 19652 Comm: udevd Tainted: G        W    L      syzkaller #0 PREEMPT(full) 
Tainted: [W]=WARN, [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
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