ERROR: (device loop1): xtTruncate: XT_GETPAGE: xtree page corrupt BUG: Bad page state in process syz.1.103 pfn:1f958 page:ffffea00007e5600 refcount:0 mapcount:0 mapping:0000000000000000 index:0x1c pfn:0x1f958 flags: 0xfff00000002006(referenced|uptodate|private|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000002006 ffffea0001f5e648 ffffc90003397980 0000000000000000 raw: 000000000000001c ffff888060381e88 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x100c40(GFP_NOFS|__GFP_HARDWALL), pid 4534, ts 82902856951, free_ts 82871384439 prep_new_page mm/page_alloc.c:2426 [inline] get_page_from_freelist+0x1b77/0x1c60 mm/page_alloc.c:4192 __alloc_pages+0x1e1/0x470 mm/page_alloc.c:5466 __page_cache_alloc+0xd2/0x3f0 mm/filemap.c:1022 do_read_cache_page+0x1da/0x1030 mm/filemap.c:3457 read_mapping_page include/linux/pagemap.h:515 [inline] __get_metapage+0x35d/0x1060 fs/jfs/jfs_metapage.c:621 diRead+0x6f7/0xbb0 fs/jfs/jfs_imap.c:367 jfs_iget+0x89/0x3c0 fs/jfs/inode.c:35 jfs_fill_super+0x735/0xaf0 fs/jfs/super.c:585 mount_bdev+0x287/0x3c0 fs/super.c:1400 legacy_get_tree+0xe6/0x180 fs/fs_context.c:611 vfs_get_tree+0x88/0x270 fs/super.c:1530 do_new_mount+0x24a/0xa40 fs/namespace.c:3014 do_mount fs/namespace.c:3357 [inline] __do_sys_mount fs/namespace.c:3565 [inline] __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:3542 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 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1340 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x637/0x6c0 mm/page_alloc.c:3317 free_unref_page_list+0x122/0x7e0 mm/page_alloc.c:3433 release_pages+0x184b/0x1bb0 mm/swap.c:963 __pagevec_release+0x6d/0xe0 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] invalidate_inode_pages2_range+0xdd2/0xfe0 mm/truncate.c:670 close_ctree+0x695/0x8c0 fs/btrfs/disk-io.c:4511 generic_shutdown_super+0x130/0x300 fs/super.c:475 kill_anon_super+0x36/0x70 fs/super.c:1089 btrfs_kill_super+0x3d/0x50 fs/btrfs/super.c:2390 deactivate_locked_super+0x93/0xf0 fs/super.c:335 cleanup_mnt+0x418/0x4d0 fs/namespace.c:1143 task_work_run+0x125/0x1a0 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] exit_to_user_mode_loop+0x10f/0x130 kernel/entry/common.c:181 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:214 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline] syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:307 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86 Modules linked in: CPU: 1 PID: 4578 Comm: syz.1.103 Not tainted 5.15.184-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Call Trace: dump_stack_lvl+0x168/0x230 lib/dump_stack.c:106 bad_page+0x14b/0x170 mm/page_alloc.c:652 check_free_page mm/page_alloc.c:1209 [inline] free_pages_prepare mm/page_alloc.c:1334 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x383/0x6c0 mm/page_alloc.c:3317 free_unref_page_list+0x122/0x7e0 mm/page_alloc.c:3433 release_pages+0x184b/0x1bb0 mm/swap.c:963 __pagevec_release+0x6d/0xe0 mm/swap.c:983 pagevec_release include/linux/pagevec.h:81 [inline] truncate_inode_pages_range+0x2f3/0xef0 mm/truncate.c:329 jfs_remount+0x337/0x5a0 fs/jfs/super.c:456 reconfigure_super+0x219/0x880 fs/super.c:938 do_remount fs/namespace.c:2670 [inline] path_mount+0xd3e/0x1020 fs/namespace.c:3336 do_mount fs/namespace.c:3357 [inline] __do_sys_mount fs/namespace.c:3565 [inline] __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:3542 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: 0033:0x7fcb95caf969 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 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:00007fcb93af6038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fcb95ed7080 RCX: 00007fcb95caf969 RDX: 0000000000000000 RSI: 00002000000001c0 RDI: 0000000000000000 RBP: 00007fcb95d31ab1 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000010f482a R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fcb95ed7080 R15: 00007ffee1368d88