loop2: detected capacity change from 0 to 32768 ocfs2: Mounting device (7,2) on (node local, slot 0) with ordered data mode. ===================================================== BUG: KMSAN: uninit-value in ocfs2_find_victim_chain fs/ocfs2/suballoc.c:1446 [inline] BUG: KMSAN: uninit-value in ocfs2_claim_suballoc_bits+0x2132/0x3920 fs/ocfs2/suballoc.c:1982 ocfs2_find_victim_chain fs/ocfs2/suballoc.c:1446 [inline] ocfs2_claim_suballoc_bits+0x2132/0x3920 fs/ocfs2/suballoc.c:1982 ocfs2_claim_metadata+0x172/0x620 fs/ocfs2/suballoc.c:2057 ocfs2_dx_dir_attach_index+0x16d/0x1310 fs/ocfs2/dir.c:2308 ocfs2_expand_inline_dir fs/ocfs2/dir.c:3000 [inline] ocfs2_extend_dir+0x6561/0x73d0 fs/ocfs2/dir.c:3182 ocfs2_prepare_dir_for_insert+0x5beb/0x8f00 fs/ocfs2/dir.c:4287 ocfs2_mknod+0x1277/0x4260 fs/ocfs2/namei.c:292 ocfs2_create+0xca/0x430 fs/ocfs2/namei.c:672 lookup_open fs/namei.c:3595 [inline] open_last_lookups fs/namei.c:3694 [inline] path_openat+0x2e9e/0x6200 fs/namei.c:3930 do_filp_open+0x20e/0x590 fs/namei.c:3960 do_sys_openat2+0x1bf/0x2f0 fs/open.c:1415 do_sys_open fs/open.c:1430 [inline] __do_sys_creat fs/open.c:1508 [inline] __se_sys_creat fs/open.c:1502 [inline] __x64_sys_creat+0xe6/0x140 fs/open.c:1502 x64_sys_call+0x3a6c/0x3ba0 arch/x86/include/generated/asm/syscalls_64.h:86 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: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] ocfs2_read_blocks_sync+0x37f/0x1020 fs/ocfs2/buffer_head_io.c:109 ocfs2_read_locked_inode fs/ocfs2/inode.c:503 [inline] ocfs2_iget+0xf39/0x2cd0 fs/ocfs2/inode.c:159 _ocfs2_get_system_file_inode fs/ocfs2/sysfile.c:142 [inline] ocfs2_get_system_file_inode+0x479/0xac0 fs/ocfs2/sysfile.c:112 ocfs2_init_local_system_inodes fs/ocfs2/super.c:487 [inline] ocfs2_mount_volume+0x4ce/0x28c0 fs/ocfs2/super.c:1811 ocfs2_fill_super+0x63d1/0x8220 fs/ocfs2/super.c:1084 mount_bdev+0x39a/0x520 fs/super.c:1693 ocfs2_mount+0x4d/0x60 fs/ocfs2/super.c:1188 legacy_get_tree+0x114/0x290 fs/fs_context.c:662 vfs_get_tree+0xb1/0x5a0 fs/super.c:1814 do_new_mount+0x71f/0x15e0 fs/namespace.c:3507 path_mount+0x742/0x1f10 fs/namespace.c:3834 do_mount fs/namespace.c:3847 [inline] __do_sys_mount fs/namespace.c:4057 [inline] __se_sys_mount+0x722/0x810 fs/namespace.c:4034 __x64_sys_mount+0xe4/0x150 fs/namespace.c:4034 x64_sys_call+0x255a/0x3ba0 arch/x86/include/generated/asm/syscalls_64.h:166 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: 11172 Comm: syz.2.846 Tainted: G W 6.12.0-rc5-syzkaller-00299-g11066801dd4b #0 Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 =====================================================