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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_get_metadata+0xf6/0x160 mm/kmsan/shadow.c:142
 kmsan_internal_memmove_metadata+0x81/0x230 mm/kmsan/core.c:105
 __msan_memcpy+0x105/0x1c0 mm/kmsan/instrumentation.c:200
 set_root+0x290/0x5a0 fs/namei.c:1117
 nd_jump_root+0x319/0x680 fs/namei.c:1137
 path_init+0xa8d/0x17f0 fs/namei.c:2711
 path_openat+0x1fb/0x64c0 fs/namei.c:4825
 do_file_open+0x2aa/0x680 fs/namei.c:4859
 do_sys_openat2+0x163/0x380 fs/open.c:1366
 do_sys_open fs/open.c:1372 [inline]
 __do_sys_openat fs/open.c:1388 [inline]
 __se_sys_openat fs/open.c:1383 [inline]
 __x64_sys_openat+0x240/0x300 fs/open.c:1383
 x64_sys_call+0x2445/0x3ea0 arch/x86/include/generated/asm/syscalls_64.h:258
 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:242

CPU: 1 UID: 0 PID: 5136 Comm: udevd Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
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