ocfs2: Mounting device (7,0) on (node local, slot 0) with writeback data mode.
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BUG: KMSAN: uninit-value in ocfs2_check_dir_entry fs/ocfs2/dir.c:308 [inline]
BUG: KMSAN: uninit-value in ocfs2_dir_foreach_blk_id fs/ocfs2/dir.c:1784 [inline]
BUG: KMSAN: uninit-value in ocfs2_dir_foreach_blk+0x2689/0x2ce0 fs/ocfs2/dir.c:1912
 ocfs2_check_dir_entry fs/ocfs2/dir.c:308 [inline]
 ocfs2_dir_foreach_blk_id fs/ocfs2/dir.c:1784 [inline]
 ocfs2_dir_foreach_blk+0x2689/0x2ce0 fs/ocfs2/dir.c:1912
 ocfs2_readdir+0x2c6/0x6b0 fs/ocfs2/dir.c:1956
 wrap_directory_iterator+0xf3/0x190 fs/readdir.c:65
 shared_ocfs2_readdir+0x3c/0x50 fs/ocfs2/file.c:2818
 iterate_dir+0x5b3/0x9e0 fs/readdir.c:108
 __do_sys_getdents64 fs/readdir.c:403 [inline]
 __se_sys_getdents64+0x170/0x540 fs/readdir.c:389
 __x64_sys_getdents64+0x96/0xe0 fs/readdir.c:389
 x64_sys_call+0x3b0f/0x3c30 arch/x86/include/generated/asm/syscalls_64.h:218
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Uninit was created at:
 __alloc_pages_noprof+0x9a7/0xe00 mm/page_alloc.c:4774
 alloc_pages_mpol_noprof+0x299/0x990 mm/mempolicy.c:2265
 alloc_pages_noprof mm/mempolicy.c:2344 [inline]
 folio_alloc_noprof+0x1db/0x310 mm/mempolicy.c:2351
 filemap_alloc_folio_noprof+0xa6/0x440 mm/filemap.c:1009
 __filemap_get_folio+0xac4/0x1550 mm/filemap.c:1951
 grow_dev_folio fs/buffer.c:1039 [inline]
 grow_buffers fs/buffer.c:1105 [inline]
 __getblk_slow fs/buffer.c:1131 [inline]
 bdev_getblk+0x2c9/0xab0 fs/buffer.c:1431
 __getblk include/linux/buffer_head.h:380 [inline]
 sb_getblk include/linux/buffer_head.h:386 [inline]
 ocfs2_read_blocks+0x34d/0x1f00 fs/ocfs2/buffer_head_io.c:236
 ocfs2_read_block fs/ocfs2/buffer_head_io.h:52 [inline]
 ocfs2_read_group_descriptor fs/ocfs2/suballoc.c:303 [inline]
 ocfs2_search_chain+0x1eb/0x3a60 fs/ocfs2/suballoc.c:1810
 ocfs2_claim_suballoc_bits+0x239b/0x3920 fs/ocfs2/suballoc.c:1985
 ocfs2_claim_new_inode+0x4e4/0xa80 fs/ocfs2/suballoc.c:2267
 ocfs2_mknod_locked+0xdd/0x350 fs/ocfs2/namei.c:633
 ocfs2_mknod+0x27a1/0x4260 fs/ocfs2/namei.c:379
 ocfs2_mkdir+0xca/0x430 fs/ocfs2/namei.c:655
 vfs_mkdir+0x4a0/0x780 fs/namei.c:4311
 do_mkdirat+0x529/0x820 fs/namei.c:4334
 __do_sys_mkdir fs/namei.c:4354 [inline]
 __se_sys_mkdir fs/namei.c:4352 [inline]
 __x64_sys_mkdir+0x9f/0xe0 fs/namei.c:4352
 x64_sys_call+0x1f69/0x3c30 arch/x86/include/generated/asm/syscalls_64.h:84
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

CPU: 1 UID: 0 PID: 8428 Comm: syz.0.657 Not tainted 6.12.0-syzkaller-09073-g9f16d5e6f220 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
=====================================================