=====================================================
BUG: KMSAN: uninit-value in batch_add_pfn_num drivers/iommu/iommufd/pages.c:365 [inline]
BUG: KMSAN: uninit-value in batch_add_pfn drivers/iommu/iommufd/pages.c:398 [inline]
BUG: KMSAN: uninit-value in batch_from_xarray_clear drivers/iommu/iommufd/pages.c:590 [inline]
BUG: KMSAN: uninit-value in iopt_pages_unpin_xarray drivers/iommu/iommufd/pages.c:2030 [inline]
BUG: KMSAN: uninit-value in iopt_pages_unfill_xarray+0xfe3/0x1660 drivers/iommu/iommufd/pages.c:2068
 batch_add_pfn_num drivers/iommu/iommufd/pages.c:365 [inline]
 batch_add_pfn drivers/iommu/iommufd/pages.c:398 [inline]
 batch_from_xarray_clear drivers/iommu/iommufd/pages.c:590 [inline]
 iopt_pages_unpin_xarray drivers/iommu/iommufd/pages.c:2030 [inline]
 iopt_pages_unfill_xarray+0xfe3/0x1660 drivers/iommu/iommufd/pages.c:2068
 iopt_area_remove_access+0x508/0x650 drivers/iommu/iommufd/pages.c:2516
 iommufd_access_unpin_pages+0x637/0xa50 drivers/iommu/iommufd/device.c:1358
 iommufd_test_access_unmap+0x423/0x6b0 drivers/iommu/iommufd/selftest.c:1384
 iommufd_test_staccess_release+0x7f/0x140 drivers/iommu/iommufd/selftest.c:1425
 __fput+0x60e/0x1050 fs/file_table.c:468
 fput_close_sync+0xbc/0x210 fs/file_table.c:573
 __do_sys_close fs/open.c:1573 [inline]
 __se_sys_close fs/open.c:1558 [inline]
 __x64_sys_close+0xef/0x2c0 fs/open.c:1558
 x64_sys_call+0x379f/0x3e70 arch/x86/include/generated/asm/syscalls_64.h:4
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xc9/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Local variable batch created at:
 iopt_pages_unfill_xarray+0x86/0x1660 drivers/iommu/iommufd/pages.c:2053
 iopt_area_remove_access+0x508/0x650 drivers/iommu/iommufd/pages.c:2516

CPU: 1 UID: 0 PID: 18743 Comm: syz.1.2882 Not tainted syzkaller #0 PREEMPT(voluntary) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/13/2026
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