EXT4-fs (loop0): orphan cleanup on readonly fs ================================================================== BUG: KASAN: slab-out-of-bounds in check_igot_inode fs/ext4/inode.c:-1 [inline] BUG: KASAN: slab-out-of-bounds in __ext4_iget+0x2b8/0x3d80 fs/ext4/inode.c:4710 Read of size 8 at addr ffff888139146608 by task syz.0.4086/13448 CPU: 0 PID: 13448 Comm: syz.0.4086 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 Call Trace: __dump_stack+0x21/0x30 lib/dump_stack.c:88 dump_stack_lvl+0xee/0x150 lib/dump_stack.c:106 print_address_description+0x7f/0x2c0 mm/kasan/report.c:248 __kasan_report mm/kasan/report.c:427 [inline] kasan_report+0xf1/0x140 mm/kasan/report.c:444 __asan_report_load8_noabort+0x14/0x20 mm/kasan/report_generic.c:309 check_igot_inode fs/ext4/inode.c:-1 [inline] __ext4_iget+0x2b8/0x3d80 fs/ext4/inode.c:4710 ext4_quota_enable fs/ext4/super.c:6408 [inline] ext4_enable_quotas+0x33b/0x6d0 fs/ext4/super.c:6444 ext4_orphan_cleanup+0x447/0x10c0 fs/ext4/orphan.c:428 ext4_fill_super+0x8974/0x9090 fs/ext4/super.c:4966 mount_bdev+0x2ae/0x3e0 fs/super.c:1400 ext4_mount+0x34/0x40 fs/ext4/super.c:6623 legacy_get_tree+0xed/0x190 fs/fs_context.c:611 vfs_get_tree+0x89/0x260 fs/super.c:1530 do_new_mount+0x25a/0xa20 fs/namespace.c:3034 path_mount+0x675/0x1020 fs/namespace.c:3364 do_mount fs/namespace.c:3377 [inline] __do_sys_mount fs/namespace.c:3585 [inline] __se_sys_mount+0x318/0x380 fs/namespace.c:3562 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3562 x64_sys_call+0x6bf/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:166 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f4bb94b6eea Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f4bb7f1ce68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f4bb7f1cef0 RCX: 00007f4bb94b6eea RDX: 00002000000000c0 RSI: 0000200000000640 RDI: 00007f4bb7f1ceb0 RBP: 00002000000000c0 R08: 00007f4bb7f1cef0 R09: 000000000120400d R10: 000000000120400d R11: 0000000000000246 R12: 0000200000000640 R13: 00007f4bb7f1ceb0 R14: 000000000000051f R15: 0000200000000000 Allocated by task 0: (stack is not available) The buggy address belongs to the object at ffff888139146100 which belongs to the cache f2fs_inode_cache of size 1424 The buggy address is located 1288 bytes inside of 1424-byte region [ffff888139146100, ffff888139146690) The buggy address belongs to the page: page:ffffea0004e45000 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff888139141230 pfn:0x139140 head:ffffea0004e45000 order:3 compound_mapcount:0 compound_pincount:0 flags: 0x4000000000010200(slab|head|zone=1) raw: 4000000000010200 0000000000000000 dead000000000122 ffff8881003ef680 raw: ffff888139141230 0000000080150012 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 3, migratetype Reclaimable, gfp_mask 0x1d2050(__GFP_IO|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL|__GFP_RECLAIMABLE), pid 10745, ts 1152014459246, free_ts 0 set_page_owner include/linux/page_owner.h:33 [inline] post_alloc_hook+0x192/0x1b0 mm/page_alloc.c:2605 prep_new_page+0x1c/0x110 mm/page_alloc.c:2611 get_page_from_freelist+0x2cc5/0x2d50 mm/page_alloc.c:4485 __alloc_pages+0x18f/0x440 mm/page_alloc.c:5808 alloc_slab_page mm/slub.c:-1 [inline] allocate_slab mm/slub.c:1937 [inline] new_slab+0xa1/0x4d0 mm/slub.c:2000 ___slab_alloc+0x381/0x810 mm/slub.c:3033 __slab_alloc+0x49/0x90 mm/slub.c:3120 slab_alloc_node mm/slub.c:3211 [inline] slab_alloc mm/slub.c:3255 [inline] kmem_cache_alloc+0x138/0x260 mm/slub.c:3260 f2fs_kmem_cache_alloc fs/f2fs/f2fs.h:2819 [inline] f2fs_alloc_inode+0x26/0x330 fs/f2fs/super.c:1459 alloc_inode fs/inode.c:264 [inline] new_inode_pseudo+0x62/0x210 fs/inode.c:1011 new_inode+0x28/0x1e0 fs/inode.c:1040 f2fs_new_inode+0xd2/0x12b0 fs/f2fs/namei.c:36 __f2fs_tmpfile+0xae/0x380 fs/f2fs/namei.c:802 f2fs_tmpfile+0x136/0x220 fs/f2fs/namei.c:870 vfs_tmpfile+0x201/0x2d0 fs/namei.c:3665 do_tmpfile+0x140/0x370 fs/namei.c:3700 page_owner free stack trace missing Memory state around the buggy address: ffff888139146500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff888139146580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff888139146600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff888139146680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff888139146700: fc fc 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ================================================================== EXT4-fs warning (device loop0): ext4_enable_quotas:6452: Failed to enable quota tracking (type=0, err=-13, ino=3). Please run e2fsck to fix. EXT4-fs (loop0): Cannot turn on quotas: error -13 EXT4-fs error (device loop0): ext4_do_update_inode:5241: inode #16: comm syz.0.4086: corrupted inode contents EXT4-fs error (device loop0): ext4_dirty_inode:6077: inode #16: comm syz.0.4086: mark_inode_dirty error EXT4-fs error (device loop0): ext4_do_update_inode:5241: inode #16: comm syz.0.4086: corrupted inode contents EXT4-fs error (device loop0): __ext4_ext_dirty:183: inode #16: comm syz.0.4086: mark_inode_dirty error EXT4-fs error (device loop0): ext4_do_update_inode:5241: inode #16: comm syz.0.4086: corrupted inode contents EXT4-fs error (device loop0) in ext4_orphan_del:301: Corrupt filesystem EXT4-fs error (device loop0): ext4_do_update_inode:5241: inode #16: comm syz.0.4086: corrupted inode contents EXT4-fs error (device loop0): ext4_truncate:4310: inode #16: comm syz.0.4086: mark_inode_dirty error EXT4-fs error (device loop0) in ext4_process_orphan:343: Corrupt filesystem EXT4-fs (loop0): 1 truncate cleaned up EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.