=====================================================
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
 __sanitizer_cov_trace_const_cmp1+0x8/0x90 kernel/kcov.c:299
 variable_test_bit arch/x86/include/asm/bitops.h:222 [inline]
 arch_test_bit arch/x86/include/asm/bitops.h:233 [inline]
 _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:142 [inline]
 tomoyo_check_acl+0x3ee/0x500 security/tomoyo/domain.c:184
 tomoyo_path_permission security/tomoyo/file.c:591 [inline]
 tomoyo_path_perm+0x51b/0x9a0 security/tomoyo/file.c:843
 tomoyo_path_unlink+0x98/0xe0 security/tomoyo/tomoyo.c:162
 security_path_unlink+0x1ea/0x5d0 security/security.c:1458
 filename_unlinkat+0x69e/0xc00 fs/namei.c:5543
 __do_sys_unlink fs/namei.c:5581 [inline]
 __se_sys_unlink+0x76/0x320 fs/namei.c:5578
 __x64_sys_unlink+0x48/0x60 fs/namei.c:5578
 x64_sys_call+0x3c48/0x3ea0 arch/x86/include/generated/asm/syscalls_64.h:88
 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 indices created at:
 shmem_undo_range+0xc0/0x20a0 mm/shmem.c:1116
 shmem_truncate_range mm/shmem.c:1277 [inline]
 shmem_evict_inode+0x22c/0xeb0 mm/shmem.c:1407

CPU: 1 UID: 0 PID: 5132 Comm: udevd Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
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