==================================================================
BUG: KASAN: slab-out-of-bounds in ext4_read_inline_data fs/ext4/inline.c:209 [inline]
BUG: KASAN: slab-out-of-bounds in ext4_inlinedir_to_tree+0x555/0x1160 fs/ext4/inline.c:1401
Read of size 68 at addr ffff88810f4b6ec9 by task syz-executor.1/350

CPU: 1 PID: 350 Comm: syz-executor.1 Not tainted 5.10.210-syzkaller-1000251-g70b6ab09a34b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack_lvl+0x1e2/0x24b lib/dump_stack.c:118
 print_address_description+0x81/0x3b0 mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:435 [inline]
 kasan_report+0x179/0x1c0 mm/kasan/report.c:452
 kasan_check_range+0x293/0x2a0 mm/kasan/generic.c:189
 memcpy+0x2d/0x70 mm/kasan/shadow.c:65
 ext4_read_inline_data fs/ext4/inline.c:209 [inline]
 ext4_inlinedir_to_tree+0x555/0x1160 fs/ext4/inline.c:1401
 ext4_htree_fill_tree+0x5d1/0x13e0 fs/ext4/namei.c:1185
 ext4_dx_readdir fs/ext4/dir.c:598 [inline]
 ext4_readdir+0x2dde/0x37c0 fs/ext4/dir.c:142
 iterate_dir+0x265/0x580
 __do_sys_getdents64 fs/readdir.c:369 [inline]
 __se_sys_getdents64+0x1c1/0x460 fs/readdir.c:354
 __x64_sys_getdents64+0x7b/0x90 fs/readdir.c:354
 do_syscall_64+0x34/0x70
 entry_SYSCALL_64_after_hwframe+0x61/0xc6
RIP: 0033:0x7f921e800363
Code: c1 66 0f 1f 44 00 00 48 83 c4 08 48 89 ef 5b 5d e9 62 8b fa ff 66 90 b8 ff ff ff 7f 48 39 c2 48 0f 47 d0 b8 d9 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 05 c3 0f 1f 40 00 48 c7 c2 b0 ff ff ff f7 d8
RSP: 002b:00007fff33c0b9b8 EFLAGS: 00000293 ORIG_RAX: 00000000000000d9
RAX: ffffffffffffffda RBX: 0000555556d7c890 RCX: 00007f921e800363
RDX: 0000000000008000 RSI: 0000555556d7c890 RDI: 0000000000000006
RBP: 0000555556d7c864 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000001000 R11: 0000000000000293 R12: ffffffffffffffb0
R13: 0000000000000016 R14: 0000555556d7c860 R15: 0000000000000008

Allocated by task 372:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track mm/kasan/common.c:45 [inline]
 set_alloc_info mm/kasan/common.c:430 [inline]
 __kasan_slab_alloc+0xb1/0xe0 mm/kasan/common.c:463
 kasan_slab_alloc include/linux/kasan.h:244 [inline]
 slab_post_alloc_hook+0x61/0x2f0 mm/slab.h:583
 slab_alloc_node mm/slub.c:2947 [inline]
 slab_alloc mm/slub.c:2955 [inline]
 kmem_cache_alloc+0x168/0x2e0 mm/slub.c:2960
 mempool_alloc_slab+0x1d/0x30 mm/mempool.c:513
 mempool_alloc+0x11f/0x530 mm/mempool.c:393
 bio_alloc_bioset+0x1e0/0x650 block/bio.c:486
 bio_alloc include/linux/bio.h:412 [inline]
 mpage_alloc fs/mpage.c:115 [inline]
 do_mpage_readpage+0x14b9/0x1ae0 fs/mpage.c:342
 mpage_readahead+0x2d7/0x610 fs/mpage.c:425
 blkdev_readahead+0x1c/0x20 fs/block_dev.c:653
 read_pages+0x17e/0xbf0 mm/readahead.c:140
 page_cache_ra_unbounded+0x6be/0x890 mm/readahead.c:248
 do_page_cache_ra mm/readahead.c:277 [inline]
 force_page_cache_ra+0x373/0x3e0 mm/readahead.c:308
 page_cache_sync_ra+0x254/0x2c0 mm/readahead.c:582
 page_cache_sync_readahead include/linux/pagemap.h:837 [inline]
 generic_file_buffered_read+0x6da/0x2ad0 mm/filemap.c:2250
 generic_file_read_iter+0x107/0x6b0 mm/filemap.c:2568
 blkdev_read_iter+0x135/0x190 fs/block_dev.c:1956
 call_read_iter include/linux/fs.h:2013 [inline]
 new_sync_read fs/read_write.c:415 [inline]
 vfs_read+0x999/0xbb0 fs/read_write.c:496
 ksys_read+0x199/0x2c0 fs/read_write.c:634
 __do_sys_read fs/read_write.c:644 [inline]
 __se_sys_read fs/read_write.c:642 [inline]
 __x64_sys_read+0x7b/0x90 fs/read_write.c:642
 do_syscall_64+0x34/0x70
 entry_SYSCALL_64_after_hwframe+0x61/0xc6

Freed by task 19:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:45
 kasan_set_free_info+0x23/0x40 mm/kasan/generic.c:370
 ____kasan_slab_free+0x121/0x160 mm/kasan/common.c:362
 __kasan_slab_free+0x11/0x20 mm/kasan/common.c:370
 kasan_slab_free include/linux/kasan.h:220 [inline]
 slab_free_hook mm/slub.c:1595 [inline]
 slab_free_freelist_hook+0xc0/0x190 mm/slub.c:1621
 slab_free mm/slub.c:3203 [inline]
 kmem_cache_free+0xa9/0x1e0 mm/slub.c:3219
 mempool_free_slab+0x1d/0x30 mm/mempool.c:520
 mempool_free+0xd7/0x310 mm/mempool.c:502
 bio_free+0x157/0x1a0 block/bio.c:266
 bio_put+0xca/0x120
 mpage_end_io+0x302/0x590 fs/mpage.c:76
 bio_endio+0x520/0x6a0 block/bio.c:1458
 req_bio_endio block/blk-core.c:263 [inline]
 blk_update_request+0x6e9/0x12b0 block/blk-core.c:1468
 blk_mq_end_request+0x43/0x80 block/blk-mq.c:569
 lo_complete_rq+0x154/0x2f0 drivers/block/loop.c:490
 blk_done_softirq+0x345/0x3d0 block/blk-mq.c:593
 __do_softirq+0x268/0x5bb kernel/softirq.c:309

The buggy address belongs to the object at ffff88810f4b6dc0
 which belongs to the cache bio-0 of size 216
The buggy address is located 49 bytes to the right of
 216-byte region [ffff88810f4b6dc0, ffff88810f4b6e98)
The buggy address belongs to the page:
page:ffffea00043d2d80 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10f4b6
flags: 0x4000000000000200(slab)
raw: 4000000000000200 dead000000000100 dead000000000122 ffff888107d91500
raw: 0000000000000000 00000000000c000c 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x192800(GFP_NOWAIT|__GFP_NOWARN|__GFP_NORETRY|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 351, ts 43337785110, free_ts 42777445905
 set_page_owner include/linux/page_owner.h:35 [inline]
 post_alloc_hook mm/page_alloc.c:2456 [inline]
 prep_new_page+0x166/0x180 mm/page_alloc.c:2462
 get_page_from_freelist+0x2d8c/0x2f30 mm/page_alloc.c:4254
 __alloc_pages_nodemask+0x435/0xaf0 mm/page_alloc.c:5346
 allocate_slab mm/slub.c:1808 [inline]
 new_slab+0x80/0x400 mm/slub.c:1869
 new_slab_objects mm/slub.c:2627 [inline]
 ___slab_alloc+0x302/0x4b0 mm/slub.c:2791
 __slab_alloc+0x63/0xa0 mm/slub.c:2831
 slab_alloc_node mm/slub.c:2913 [inline]
 slab_alloc mm/slub.c:2955 [inline]
 kmem_cache_alloc+0x1b9/0x2e0 mm/slub.c:2960
 mempool_alloc_slab+0x1d/0x30 mm/mempool.c:513
 mempool_alloc+0x11f/0x530 mm/mempool.c:393
 bio_alloc_bioset+0x1e0/0x650 block/bio.c:486
 bio_alloc include/linux/bio.h:412 [inline]
 submit_bh_wbc+0x1d1/0x700 fs/buffer.c:3057
 submit_bh fs/buffer.c:3091 [inline]
 __sync_dirty_buffer+0x227/0x330 fs/buffer.c:3186
 ext4_commit_super+0x83f/0xa20 fs/ext4/super.c:5558
 save_error_info fs/ext4/super.c:628 [inline]
 __ext4_error_inode+0x2b1/0x5b0 fs/ext4/super.c:733
 __ext4_check_dir_entry+0x6d2/0x880 fs/ext4/dir.c:117
 empty_inline_dir+0x54f/0xa30 fs/ext4/inline.c:1833
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:28 [inline]
 free_pages_prepare mm/page_alloc.c:1349 [inline]
 __free_pages_ok+0x82c/0x850 mm/page_alloc.c:1629
 free_the_page+0x76/0x370 mm/page_alloc.c:5407
 __free_pages+0x67/0xc0 mm/page_alloc.c:5416
 __free_slab+0xcf/0x190 mm/slub.c:1894
 free_slab mm/slub.c:1909 [inline]
 discard_slab mm/slub.c:1915 [inline]
 unfreeze_partials+0x15e/0x190 mm/slub.c:2410
 put_cpu_partial+0xbf/0x180 mm/slub.c:2446
 __slab_free+0x2c8/0x3a0 mm/slub.c:3095
 do_slab_free mm/slub.c:3191 [inline]
 ___cache_free+0x111/0x130 mm/slub.c:3210
 qlink_free+0x50/0x90 mm/kasan/quarantine.c:157
 qlist_free_all+0x47/0xb0 mm/kasan/quarantine.c:176
 kasan_quarantine_reduce+0x15a/0x170 mm/kasan/quarantine.c:283
 __kasan_slab_alloc+0x2f/0xe0 mm/kasan/common.c:440
 kasan_slab_alloc include/linux/kasan.h:244 [inline]
 slab_post_alloc_hook+0x61/0x2f0 mm/slab.h:583
 slab_alloc_node mm/slub.c:2947 [inline]
 slab_alloc mm/slub.c:2955 [inline]
 kmem_cache_alloc+0x168/0x2e0 mm/slub.c:2960
 getname_flags+0xba/0x520 fs/namei.c:141
 __se_sys_unlinkat fs/namei.c:4070 [inline]
 __x64_sys_unlinkat+0xb2/0xf0 fs/namei.c:4070

Memory state around the buggy address:
 ffff88810f4b6d80: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb
 ffff88810f4b6e00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff88810f4b6e80: fb fb fb fc fc fc fc fc fc fc fc fc fc fc fc fc
                                              ^
 ffff88810f4b6f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88810f4b6f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================
EXT4-fs error (device loop1): ext4_inlinedir_to_tree:1439: inode #12: block 7: comm syz-executor.1: path /root/syzkaller-testdir1551174338/syzkaller.gHfYCp/0/file0/file0: bad entry in directory: directory entry overrun - offset=34816, inode=2538880996, rec_len=34812, size=128 fake=0
EXT4-fs error (device loop1): empty_inline_dir:1835: inode #12: block 7: comm syz-executor.1: bad entry in directory: directory entry overrun - offset=4, inode=2538880996, rec_len=34812, size=60 fake=0
EXT4-fs warning (device loop1): empty_inline_dir:1842: bad inline directory (dir #12) - inode 2538880996, rec_len 34812, name_len 234inline size 60
EXT4-fs error (device loop1): ext4_inlinedir_to_tree:1439: inode #12: block 7: comm syz-executor.1: path /root/syzkaller-testdir1551174338/syzkaller.gHfYCp/0/file0/file0: bad entry in directory: directory entry overrun - offset=34816, inode=2538880996, rec_len=34812, size=128 fake=0
EXT4-fs error (device loop1): empty_inline_dir:1835: inode #12: block 7: comm syz-executor.1: bad entry in directory: directory entry overrun - offset=4, inode=2538880996, rec_len=34812, size=60 fake=0
EXT4-fs warning (device loop1): empty_inline_dir:1842: bad inline directory (dir #12) - inode 2538880996, rec_len 34812, name_len 234inline size 60
EXT4-fs error (device loop1): ext4_inlinedir_to_tree:1439: inode #12: block 7: comm syz-executor.1: path /root/syzkaller-testdir1551174338/syzkaller.gHfYCp/0/file0/file0: bad entry in directory: directory entry overrun - offset=34816, inode=2538880996, rec_len=34812, size=128 fake=0
EXT4-fs error (device loop1): empty_inline_dir:1835: inode #12: block 7: comm syz-executor.1: bad entry in directory: directory entry overrun - offset=4, inode=2538880996, rec_len=34812, size=60 fake=0
EXT4-fs warning (device loop1): empty_inline_dir:1842: bad inline directory (dir #12) - inode 2538880996, rec_len 34812, name_len 234inline size 60
EXT4-fs error (device loop1): ext4_inlinedir_to_tree:1439: inode #12: block 7: comm syz-executor.1: path /root/syzkaller-testdir1551174338/syzkaller.gHfYCp/0/file0/file0: bad entry in directory: directory entry overrun - offset=34816, inode=2538880996, rec_len=34812, size=128 fake=0
EXT4-fs error (device loop1): empty_inline_dir:1835: inode #12: block 7: comm syz-executor.1: bad entry in directory: directory entry overrun - offset=4, inode=2538880996, rec_len=34812, size=60 fake=0
EXT4-fs warning (device loop1): empty_inline_dir:1842: bad inline directory (dir #12) - inode 2538880996, rec_len 34812, name_len 234inline size 60
EXT4-fs error (device loop1): ext4_inlinedir_to_tree:1439: inode #12: block 7: comm syz-executor.1: path /root/syzkaller-testdir1551174338/syzkaller.gHfYCp/0/file0/file0: bad entry in directory: directory entry overrun - offset=34816, inode=2538880996, rec_len=34812, size=128 fake=0
EXT4-fs error (device loop1): empty_inline_dir:1835: inode #12: block 7: comm syz-executor.1: bad entry in directory: directory entry overrun - offset=4, inode=2538880996, rec_len=34812, size=60 fake=0
EXT4-fs warning (device loop1): empty_inline_dir:1842: bad inline directory (dir #12) - inode 2538880996, rec_len 34812, name_len 234inline size 60
EXT4-fs warning (device loop1): empty_inline_dir:1842: bad inline directory (dir #12) - inode 2538880996, rec_len 34812, name_len 234inline size 60
EXT4-fs warning (device loop1): empty_inline_dir:1842: bad inline directory (dir #12) - inode 2538880996, rec_len 34812, name_len 234inline size 60
EXT4-fs warning (device loop1): empty_inline_dir:1842: bad inline directory (dir #12) - inode 2538880996, rec_len 34812, name_len 234inline size 60
EXT4-fs warning (device loop1): empty_inline_dir:1842: bad inline directory (dir #12) - inode 2538880996, rec_len 34812, name_len 234inline size 60
EXT4-fs warning (device loop1): empty_inline_dir:1842: bad inline directory (dir #12) - inode 2538880996, rec_len 34812, name_len 234inline size 60