===================================================== BUG: KMSAN: uninit-value in ntfs_fix_post_read fs/ntfs3/fsntfs.c:180 [inline] BUG: KMSAN: uninit-value in ntfs_read_bh+0x1eb/0xde0 fs/ntfs3/fsntfs.c:1317 ntfs_fix_post_read fs/ntfs3/fsntfs.c:180 [inline] ntfs_read_bh+0x1eb/0xde0 fs/ntfs3/fsntfs.c:1317 indx_read+0x44e/0x17b0 fs/ntfs3/index.c:1067 indx_find+0xd12/0x1440 fs/ntfs3/index.c:1181 indx_update_dup+0x607/0xf80 fs/ntfs3/index.c:2666 ni_update_parent+0x12de/0x14b0 fs/ntfs3/frecord.c:3301 ni_write_inode+0x1cf4/0x1de0 fs/ntfs3/frecord.c:3392 ntfs3_write_inode+0x94/0xb0 fs/ntfs3/inode.c:1011 write_inode fs/fs-writeback.c:1503 [inline] __writeback_single_inode+0x8da/0x1290 fs/fs-writeback.c:1723 writeback_sb_inodes+0xa34/0x1c20 fs/fs-writeback.c:1954 wb_writeback+0x4df/0xcb0 fs/fs-writeback.c:2134 wb_do_writeback fs/fs-writeback.c:2281 [inline] wb_workfn+0x40b/0x1940 fs/fs-writeback.c:2321 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xae0/0x1c40 kernel/workqueue.c:3310 worker_thread+0xea7/0x14f0 kernel/workqueue.c:3391 kthread+0x3e2/0x540 kernel/kthread.c:389 ret_from_fork+0x6d/0x90 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Uninit was stored to memory at: ntfs_read_run_nb+0x786/0x1070 fs/ntfs3/fsntfs.c:1252 ntfs_read_bh+0x64/0xde0 fs/ntfs3/fsntfs.c:1313 indx_read+0x44e/0x17b0 fs/ntfs3/index.c:1067 indx_find+0xd12/0x1440 fs/ntfs3/index.c:1181 indx_update_dup+0x607/0xf80 fs/ntfs3/index.c:2666 ni_update_parent+0x12de/0x14b0 fs/ntfs3/frecord.c:3301 ni_write_inode+0x1cf4/0x1de0 fs/ntfs3/frecord.c:3392 ntfs3_write_inode+0x94/0xb0 fs/ntfs3/inode.c:1011 write_inode fs/fs-writeback.c:1503 [inline] __writeback_single_inode+0x8da/0x1290 fs/fs-writeback.c:1723 writeback_sb_inodes+0xa34/0x1c20 fs/fs-writeback.c:1954 wb_writeback+0x4df/0xcb0 fs/fs-writeback.c:2134 wb_do_writeback fs/fs-writeback.c:2281 [inline] wb_workfn+0x40b/0x1940 fs/fs-writeback.c:2321 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xae0/0x1c40 kernel/workqueue.c:3310 worker_thread+0xea7/0x14f0 kernel/workqueue.c:3391 kthread+0x3e2/0x540 kernel/kthread.c:389 ret_from_fork+0x6d/0x90 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Uninit was created at: __alloc_pages_noprof+0x9d6/0xe70 mm/page_alloc.c:4756 alloc_pages_mpol_noprof+0x299/0x990 mm/mempolicy.c:2265 alloc_pages_noprof mm/mempolicy.c:2345 [inline] folio_alloc_noprof+0x1db/0x310 mm/mempolicy.c:2352 filemap_alloc_folio_noprof+0xa6/0x440 mm/filemap.c:1010 __filemap_get_folio+0xac4/0x1550 mm/filemap.c:1952 grow_dev_folio fs/buffer.c:1043 [inline] grow_buffers fs/buffer.c:1109 [inline] __getblk_slow fs/buffer.c:1135 [inline] bdev_getblk+0x2c9/0xab0 fs/buffer.c:1437 __getblk include/linux/buffer_head.h:380 [inline] sb_getblk include/linux/buffer_head.h:386 [inline] ntfs_get_bh+0x605/0x1190 fs/ntfs3/fsntfs.c:1365 indx_new+0x1bc/0x780 fs/ntfs3/index.c:955 indx_insert_into_root+0x2fd1/0x37d0 fs/ntfs3/index.c:1723 indx_insert_entry+0xe1d/0xee0 fs/ntfs3/index.c:1982 ntfs_create_inode+0x4391/0x4df0 fs/ntfs3/inode.c:1648 ntfs_mkdir+0x56/0x70 fs/ntfs3/namei.c:207 vfs_mkdir+0x4a0/0x780 fs/namei.c:4257 do_mkdirat+0x529/0x810 fs/namei.c:4280 __do_sys_mkdirat fs/namei.c:4295 [inline] __se_sys_mkdirat fs/namei.c:4293 [inline] __ia32_sys_mkdirat+0xc6/0x120 fs/namei.c:4293 ia32_sys_call+0x3875/0x40d0 arch/x86/include/generated/asm/syscalls_32.h:297 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0xb0/0x110 arch/x86/entry/common.c:386 do_fast_syscall_32+0x38/0x80 arch/x86/entry/common.c:411 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:449 entry_SYSENTER_compat_after_hwframe+0x84/0x8e CPU: 0 UID: 0 PID: 4543 Comm: kworker/u8:23 Tainted: G W 6.11.0-syzkaller-08836-gf8eb5bd9a818 #0 Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 Workqueue: writeback wb_workfn (flush-7:2) =====================================================