loop2: detected capacity change from 0 to 32768
ocfs2: Slot 0 on device (7,2) was already allocated to this node!
ocfs2: Mounting device (7,2) on (node local, slot 0) with ordered data mode.
=====================================================
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:1797 [inline]
BUG: KMSAN: uninit-value in ocfs2_dir_foreach_blk+0x2689/0x2ce0 fs/ocfs2/dir.c:1925
 ocfs2_check_dir_entry fs/ocfs2/dir.c:308 [inline]
 ocfs2_dir_foreach_blk_id fs/ocfs2/dir.c:1797 [inline]
 ocfs2_dir_foreach_blk+0x2689/0x2ce0 fs/ocfs2/dir.c:1925
 ocfs2_readdir+0x2c6/0x6b0 fs/ocfs2/dir.c:1969
 wrap_directory_iterator+0xf3/0x190 fs/readdir.c:65
 shared_ocfs2_readdir+0x3c/0x50 fs/ocfs2/file.c:2822
 iterate_dir+0x740/0x930 fs/readdir.c:108
 __do_sys_getdents fs/readdir.c:322 [inline]
 __se_sys_getdents+0x170/0x550 fs/readdir.c:308
 __x64_sys_getdents+0x96/0xe0 fs/readdir.c:308
 x64_sys_call+0x38d8/0x3c30 arch/x86/include/generated/asm/syscalls_64.h:79
 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_frozen_pages_noprof+0x9a7/0xe00 mm/page_alloc.c:4762
 alloc_pages_mpol+0x4cd/0x890 mm/mempolicy.c:2270
 alloc_frozen_pages_noprof mm/mempolicy.c:2341 [inline]
 alloc_pages_noprof mm/mempolicy.c:2361 [inline]
 folio_alloc_noprof+0x1dc/0x350 mm/mempolicy.c:2371
 filemap_alloc_folio_noprof+0xa6/0x440 mm/filemap.c:1019
 __filemap_get_folio+0xb9a/0x1840 mm/filemap.c:1970
 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:634
 ocfs2_mknod+0x27a1/0x4260 fs/ocfs2/namei.c:381
 ocfs2_mkdir+0xca/0x430 fs/ocfs2/namei.c:656
 vfs_mkdir+0x4a0/0x780 fs/namei.c:4313
 do_mkdirat+0x529/0x820 fs/namei.c:4336
 __do_sys_mkdirat fs/namei.c:4351 [inline]
 __se_sys_mkdirat fs/namei.c:4349 [inline]
 __x64_sys_mkdirat+0xc6/0x120 fs/namei.c:4349
 x64_sys_call+0x1fad/0x3c30 arch/x86/include/generated/asm/syscalls_64.h:259
 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: 0 UID: 0 PID: 8909 Comm: syz.2.667 Not tainted 6.14.0-rc5-syzkaller-00039-g848e07631744 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
=====================================================