loop0: detected capacity change from 0 to 512 EXT4-fs error (device loop0): ext4_orphan_get:1392: inode #15: comm syz.0.0: inode has both inline data and extents flags EXT4-fs error (device loop0): ext4_orphan_get:1397: comm syz.0.0: couldn't read orphan inode 15 (err -117) EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. loop0: detected capacity change from 512 to 64 ================================================================== BUG: KASAN: out-of-bounds in ext4_xattr_set_entry+0x9c1/0x1e20 fs/ext4/xattr.c:1756 Read of size 18446744073709551600 at addr ffff888019ef36d0 by task syz.0.0/5330 CPU: 0 UID: 0 PID: 5330 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Call Trace: dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:378 [inline] print_report+0xca/0x240 mm/kasan/report.c:482 kasan_report+0x118/0x150 mm/kasan/report.c:595 check_region_inline mm/kasan/generic.c:-1 [inline] kasan_check_range+0x2b0/0x2c0 mm/kasan/generic.c:200 __asan_memmove+0x29/0x70 mm/kasan/shadow.c:94 ext4_xattr_set_entry+0x9c1/0x1e20 fs/ext4/xattr.c:1756 ext4_xattr_ibody_set+0x254/0x6a0 fs/ext4/xattr.c:2268 ext4_destroy_inline_data_nolock+0x214/0x5b0 fs/ext4/inline.c:463 ext4_convert_inline_data_to_extent+0x540/0xdd0 fs/ext4/inline.c:613 ext4_write_begin+0x382/0x19a0 fs/ext4/inode.c:1302 generic_perform_write+0x2c5/0x900 mm/filemap.c:4254 ext4_buffered_write_iter+0xce/0x3a0 fs/ext4/file.c:299 ext4_file_write_iter+0x298/0x1bc0 fs/ext4/file.c:-1 aio_write+0x535/0x7a0 fs/aio.c:1634 __io_submit_one fs/aio.c:-1 [inline] io_submit_one+0x78b/0x1310 fs/aio.c:2053 __do_sys_io_submit fs/aio.c:2112 [inline] __se_sys_io_submit+0x185/0x2f0 fs/aio.c:2082 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f9727d8f6c9 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:00007f9728d04038 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007f9727fe5fa0 RCX: 00007f9727d8f6c9 RDX: 0000200000000540 RSI: 000000000000003b RDI: 00007f9728cba000 RBP: 00007f9727e11f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f9727fe6038 R14: 00007f9727fe5fa0 R15: 00007ffc09ba7738 The buggy address belongs to the physical page: page: refcount:2 mapcount:0 mapping:ffff88803217cd80 index:0x2 pfn:0x19ef3 memcg:ffff88801bed8d00 aops:def_blk_aops ino:700000 dentry name(?):"" flags: 0xfff58000004234(referenced|dirty|lru|workingset|private|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff58000004234 ffffea00007f9b48 ffff88801bee8a80 ffff88803217cd80 raw: 0000000000000002 ffff888012323cb0 00000002ffffffff ffff88801bed8d00 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 0, migratetype Movable, gfp_mask 0x148c48(GFP_NOFS|__GFP_MOVABLE|__GFP_NOFAIL|__GFP_COMP|__GFP_HARDWALL), pid 5330, tgid 5329 (syz.0.0), ts 86597102820, free_ts 86470533631 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x240/0x2a0 mm/page_alloc.c:1850 prep_new_page mm/page_alloc.c:1858 [inline] get_page_from_freelist+0x2365/0x2440 mm/page_alloc.c:3884 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:5183 alloc_pages_mpol+0x232/0x4a0 mm/mempolicy.c:2416 alloc_frozen_pages_noprof mm/mempolicy.c:2487 [inline] alloc_pages_noprof+0xa9/0x190 mm/mempolicy.c:2507 folio_alloc_noprof+0x1e/0x30 mm/mempolicy.c:2517 filemap_alloc_folio_noprof+0xdf/0x470 mm/filemap.c:1020 __filemap_get_folio+0x3f2/0xaf0 mm/filemap.c:2012 grow_dev_folio fs/buffer.c:1050 [inline] grow_buffers fs/buffer.c:1116 [inline] __getblk_slow fs/buffer.c:1134 [inline] bdev_getblk+0x1ad/0x660 fs/buffer.c:1461 __getblk include/linux/buffer_head.h:380 [inline] sb_getblk include/linux/buffer_head.h:386 [inline] __ext4_get_inode_loc+0x561/0x1040 fs/ext4/inode.c:4837 ext4_get_inode_loc fs/ext4/inode.c:4965 [inline] ext4_reserve_inode_write+0x18b/0x360 fs/ext4/inode.c:6302 __ext4_mark_inode_dirty+0x15b/0x700 fs/ext4/inode.c:6480 ext4_dirty_inode+0xd0/0x110 fs/ext4/inode.c:6517 __mark_inode_dirty+0x2ec/0xe10 fs/fs-writeback.c:2566 generic_update_time fs/inode.c:2117 [inline] inode_update_time fs/inode.c:2130 [inline] __file_update_time fs/inode.c:2357 [inline] file_modified_flags+0x4b0/0x560 fs/inode.c:2428 ext4_write_checks+0x240/0x2c0 fs/ext4/file.c:279 page last free pid 5331 tgid 5329 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1394 [inline] free_unref_folios+0xdb3/0x14f0 mm/page_alloc.c:2963 folios_put_refs+0x584/0x670 mm/swap.c:1002 folio_batch_release include/linux/pagevec.h:101 [inline] shmem_undo_range+0x49e/0x14b0 mm/shmem.c:1119 shmem_truncate_range mm/shmem.c:1231 [inline] shmem_evict_inode+0x272/0xa70 mm/shmem.c:1359 evict+0x504/0x9c0 fs/inode.c:810 __dentry_kill+0x209/0x660 fs/dcache.c:669 dput+0x19f/0x2b0 fs/dcache.c:911 __fput+0x68e/0xa70 fs/file_table.c:476 fput_close_sync+0x119/0x200 fs/file_table.c:573 __do_sys_close fs/open.c:1589 [inline] __se_sys_close fs/open.c:1574 [inline] __x64_sys_close+0x7f/0x110 fs/open.c:1574 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f Memory state around the buggy address: ffff888019ef3580: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff888019ef3600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff888019ef3680: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ^ ffff888019ef3700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff888019ef3780: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ==================================================================