syzbot

overlayfs: upper fs needs to support d_type.
overlayfs: upper fs does not support tmpfile.
overlayfs: upper fs does not support RENAME_WHITEOUT.
==================================================================
BUG: KASAN: use-after-free in drop_metapage fs/jfs/jfs_metapage.c:223 [inline]
BUG: KASAN: use-after-free in release_metapage+0xe08/0xf00 fs/jfs/jfs_metapage.c:757
Read of size 8 at addr ffff888000e07b10 by task syz-executor.2/11247

CPU: 3 PID: 11247 Comm: syz-executor.2 Not tainted 6.2.0-rc2-syzkaller-00203-g1f5abbd77e2c #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd1/0x138 lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:306 [inline]
 print_report+0x15e/0x461 mm/kasan/report.c:417
 kasan_report+0xbf/0x1f0 mm/kasan/report.c:517
 drop_metapage fs/jfs/jfs_metapage.c:223 [inline]
 release_metapage+0xe08/0xf00 fs/jfs/jfs_metapage.c:757
 write_metapage fs/jfs/jfs_metapage.h:75 [inline]
 flush_metapage fs/jfs/jfs_metapage.h:81 [inline]
 ea_write+0x5d6/0xc90 fs/jfs/xattr.c:280
 ea_put fs/jfs/xattr.c:617 [inline]
 __jfs_setxattr+0xe26/0xfc0 fs/jfs/xattr.c:783
 __jfs_xattr_set+0xc9/0x150 fs/jfs/xattr.c:917
 __vfs_setxattr+0x173/0x1e0 fs/xattr.c:202
 __vfs_setxattr_noperm+0x129/0x5f0 fs/xattr.c:236
 __vfs_setxattr_locked+0x1d3/0x260 fs/xattr.c:297
 vfs_setxattr+0x143/0x340 fs/xattr.c:323
 ovl_do_setxattr fs/overlayfs/overlayfs.h:254 [inline]
 ovl_setxattr fs/overlayfs/overlayfs.h:266 [inline]
 ovl_make_workdir fs/overlayfs/super.c:1340 [inline]
 ovl_get_workdir fs/overlayfs/super.c:1444 [inline]
 ovl_fill_super+0x1fac/0x6330 fs/overlayfs/super.c:2000
 mount_nodev+0x64/0x120 fs/super.c:1405
 legacy_get_tree+0x109/0x220 fs/fs_context.c:610
 vfs_get_tree+0x8d/0x2f0 fs/super.c:1489
 do_new_mount fs/namespace.c:3145 [inline]
 path_mount+0x132a/0x1e20 fs/namespace.c:3475
 do_mount fs/namespace.c:3488 [inline]
 __do_sys_mount fs/namespace.c:3697 [inline]
 __se_sys_mount fs/namespace.c:3674 [inline]
 __x64_sys_mount+0x283/0x300 fs/namespace.c:3674
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fcab5e8c0c9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fcab49fe168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fcab5fabf80 RCX: 00007fcab5e8c0c9
RDX: 0000000020000080 RSI: 0000000020000200 RDI: 0000000020000000
RBP: 00007fcab5ee7ae9 R08: 0000000020000180 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe919516df R14: 00007fcab49fe300 R15: 0000000000022000
 </TASK>

Allocated by task 11247:
 kasan_save_stack+0x22/0x40 mm/kasan/common.c:45
 kasan_set_track+0x25/0x30 mm/kasan/common.c:52
 __kasan_slab_alloc+0x7f/0x90 mm/kasan/common.c:325
 kasan_slab_alloc include/linux/kasan.h:201 [inline]
 slab_post_alloc_hook mm/slab.h:761 [inline]
 slab_alloc_node mm/slab.c:3261 [inline]
 slab_alloc mm/slab.c:3270 [inline]
 __kmem_cache_alloc_lru mm/slab.c:3447 [inline]
 kmem_cache_alloc+0x225/0x460 mm/slab.c:3456
 mempool_alloc+0x158/0x360 mm/mempool.c:398
 alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
 __get_metapage+0x73d/0xf00 fs/jfs/jfs_metapage.c:651
 ea_write+0x6d7/0xc90 fs/jfs/xattr.c:256
 ea_put fs/jfs/xattr.c:617 [inline]
 __jfs_setxattr+0xe26/0xfc0 fs/jfs/xattr.c:783
 __jfs_xattr_set+0xc9/0x150 fs/jfs/xattr.c:917
 __vfs_setxattr+0x173/0x1e0 fs/xattr.c:202
 __vfs_setxattr_noperm+0x129/0x5f0 fs/xattr.c:236
 __vfs_setxattr_locked+0x1d3/0x260 fs/xattr.c:297
 vfs_setxattr+0x143/0x340 fs/xattr.c:323
 ovl_do_setxattr fs/overlayfs/overlayfs.h:254 [inline]
 ovl_setxattr fs/overlayfs/overlayfs.h:266 [inline]
 ovl_make_workdir fs/overlayfs/super.c:1340 [inline]
 ovl_get_workdir fs/overlayfs/super.c:1444 [inline]
 ovl_fill_super+0x1fac/0x6330 fs/overlayfs/super.c:2000
 mount_nodev+0x64/0x120 fs/super.c:1405
 legacy_get_tree+0x109/0x220 fs/fs_context.c:610
 vfs_get_tree+0x8d/0x2f0 fs/super.c:1489
 do_new_mount fs/namespace.c:3145 [inline]
 path_mount+0x132a/0x1e20 fs/namespace.c:3475
 do_mount fs/namespace.c:3488 [inline]
 __do_sys_mount fs/namespace.c:3697 [inline]
 __se_sys_mount fs/namespace.c:3674 [inline]
 __x64_sys_mount+0x283/0x300 fs/namespace.c:3674
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

Freed by task 11241:
 kasan_save_stack+0x22/0x40 mm/kasan/common.c:45
 kasan_set_track+0x25/0x30 mm/kasan/common.c:52
 kasan_save_free_info+0x2b/0x40 mm/kasan/generic.c:518
 ____kasan_slab_free mm/kasan/common.c:236 [inline]
 ____kasan_slab_free+0x13b/0x1a0 mm/kasan/common.c:200
 kasan_slab_free include/linux/kasan.h:177 [inline]
 __cache_free mm/slab.c:3394 [inline]
 __do_kmem_cache_free mm/slab.c:3580 [inline]
 kmem_cache_free mm/slab.c:3605 [inline]
 kmem_cache_free+0x108/0x4c0 mm/slab.c:3598
 mempool_free+0xe7/0x3b0 mm/mempool.c:507
 free_metapage fs/jfs/jfs_metapage.c:191 [inline]
 metapage_release_folio+0x2b5/0x3c0 fs/jfs/jfs_metapage.c:551
 filemap_release_folio+0x13f/0x1b0 mm/filemap.c:3967
 shrink_folio_list+0x1ea9/0x3a60 mm/vmscan.c:2000
 shrink_inactive_list mm/vmscan.c:2526 [inline]
 shrink_list mm/vmscan.c:2767 [inline]
 shrink_lruvec+0xd0e/0x27a0 mm/vmscan.c:5951
 shrink_node_memcgs mm/vmscan.c:6138 [inline]
 shrink_node+0x8f2/0x1f40 mm/vmscan.c:6169
 shrink_zones mm/vmscan.c:6407 [inline]
 do_try_to_free_pages+0x3b4/0x17a0 mm/vmscan.c:6469
 try_to_free_pages+0x2e5/0x960 mm/vmscan.c:6704
 __perform_reclaim mm/page_alloc.c:4750 [inline]
 __alloc_pages_direct_reclaim mm/page_alloc.c:4772 [inline]
 __alloc_pages_slowpath.constprop.0+0x8b6/0x23d0 mm/page_alloc.c:5178
 __alloc_pages+0x4aa/0x5b0 mm/page_alloc.c:5562
 __folio_alloc+0x16/0x40 mm/page_alloc.c:5581
 vma_alloc_folio+0x155/0x870 mm/mempolicy.c:2247
 shmem_alloc_folio+0xfe/0x1d0 mm/shmem.c:1571
 shmem_alloc_and_acct_folio+0x15e/0x5d0 mm/shmem.c:1595
 shmem_get_folio_gfp+0xb2e/0x1a30 mm/shmem.c:1922
 shmem_get_folio mm/shmem.c:2053 [inline]
 shmem_write_begin+0x14a/0x380 mm/shmem.c:2545
 generic_perform_write+0x256/0x570 mm/filemap.c:3772
 __generic_file_write_iter+0x2ae/0x500 mm/filemap.c:3900
 generic_file_write_iter+0xe3/0x350 mm/filemap.c:3932
 call_write_iter include/linux/fs.h:2186 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x9ed/0xdd0 fs/read_write.c:584
 ksys_write+0x12b/0x250 fs/read_write.c:637
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

The buggy address belongs to the object at ffff888000e07ae8
 which belongs to the cache jfs_mp of size 184
The buggy address is located 40 bytes inside of
 184-byte region [ffff888000e07ae8, ffff888000e07ba0)

The buggy address belongs to the physical page:
page:ffffea00000381c0 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xe07
flags: 0x7ff00000000200(slab|node=0|zone=0|lastcpupid=0x7ff)
raw: 007ff00000000200 ffff8880437c3700 ffffea0000005150 ffffea0000b0f090
raw: 0000000000000000 ffff888000e07040 0000000100000010 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 0x2d2000(__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_THISNODE), pid 10852, tgid 10851 (syz-executor.3), ts 565847132541, free_ts 565313440874
 prep_new_page mm/page_alloc.c:2531 [inline]
 get_page_from_freelist+0x119c/0x2ce0 mm/page_alloc.c:4283
 __alloc_pages_slowpath.constprop.0+0x36b/0x23d0 mm/page_alloc.c:5084
 __alloc_pages+0x4aa/0x5b0 mm/page_alloc.c:5562
 __alloc_pages_node include/linux/gfp.h:237 [inline]
 kmem_getpages mm/slab.c:1363 [inline]
 cache_grow_begin+0x94/0x390 mm/slab.c:2574
 cache_alloc_refill+0x27f/0x380 mm/slab.c:2947
 ____cache_alloc mm/slab.c:3023 [inline]
 ____cache_alloc mm/slab.c:3006 [inline]
 __do_cache_alloc mm/slab.c:3206 [inline]
 slab_alloc_node mm/slab.c:3254 [inline]
 slab_alloc mm/slab.c:3270 [inline]
 __kmem_cache_alloc_lru mm/slab.c:3447 [inline]
 kmem_cache_alloc+0x366/0x460 mm/slab.c:3456
 mempool_alloc+0x158/0x360 mm/mempool.c:398
 alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
 __get_metapage+0x73d/0xf00 fs/jfs/jfs_metapage.c:651
 diIAGRead.isra.0+0xcd/0x140 fs/jfs/jfs_imap.c:2662
 diRead+0x1ff/0xa10 fs/jfs/jfs_imap.c:315
 jfs_iget+0x86/0x4d0 fs/jfs/inode.c:35
 jfs_fill_super+0x6a8/0xc80 fs/jfs/super.c:580
 mount_bdev+0x351/0x410 fs/super.c:1359
 legacy_get_tree+0x109/0x220 fs/fs_context.c:610
 vfs_get_tree+0x8d/0x2f0 fs/super.c:1489
 do_new_mount fs/namespace.c:3145 [inline]
 path_mount+0x132a/0x1e20 fs/namespace.c:3475
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1446 [inline]
 free_pcp_prepare+0x65c/0xc00 mm/page_alloc.c:1496
 free_unref_page_prepare mm/page_alloc.c:3369 [inline]
 free_unref_page_list+0x176/0xcd0 mm/page_alloc.c:3510
 release_pages+0xcb1/0x1330 mm/swap.c:1076
 __pagevec_release+0x77/0xe0 mm/swap.c:1096
 pagevec_release include/linux/pagevec.h:71 [inline]
 folio_batch_release include/linux/pagevec.h:135 [inline]
 truncate_inode_pages_range+0x2ec/0xec0 mm/truncate.c:372
 kill_bdev block/bdev.c:76 [inline]
 blkdev_flush_mapping+0x140/0x2f0 block/bdev.c:662
 blkdev_put_whole+0xd1/0xf0 block/bdev.c:693
 blkdev_put+0x224/0x770 block/bdev.c:953
 deactivate_locked_super+0x98/0x160 fs/super.c:332
 deactivate_super+0xb1/0xd0 fs/super.c:363
 cleanup_mnt+0x2ae/0x3d0 fs/namespace.c:1291
 task_work_run+0x16f/0x270 kernel/task_work.c:179
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:171 [inline]
 exit_to_user_mode_prepare+0x23c/0x250 kernel/entry/common.c:203
 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
 syscall_exit_to_user_mode+0x1d/0x50 kernel/entry/common.c:296
 do_syscall_64+0x46/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

Memory state around the buggy address:
 ffff888000e07a00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888000e07a80: fb fb fb fb fb fc fc fc fc fc fc fc fc fa fb fb
>ffff888000e07b00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                         ^
 ffff888000e07b80: fb fb fb fb fc fc fc fc fc fc fc fc fa fb fb fb
 ffff888000e07c00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================