loop0: detected capacity change from 0 to 32768
loop0: detected capacity change from 32768 to 0
syz.0.0: attempt to access beyond end of device
loop0: rw=1, sector=368, nr_sectors = 8 limit=0
metapage_write_end_io: I/O error
==================================================================
BUG: KASAN: slab-use-after-free in release_metapage+0x5d8/0xa90 fs/jfs/jfs_metapage.c:777
Read of size 8 at addr ffff888052422668 by task syz.0.0/5322

CPU: 0 UID: 0 PID: 5322 Comm: syz.0.0 Not tainted 6.14.0-syzkaller-01103-g2df0c02dab82 #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:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:408 [inline]
 print_report+0x16e/0x5b0 mm/kasan/report.c:521
 kasan_report+0x143/0x180 mm/kasan/report.c:634
 release_metapage+0x5d8/0xa90 fs/jfs/jfs_metapage.c:777
 write_metapage fs/jfs/jfs_metapage.h:75 [inline]
 flush_metapage fs/jfs/jfs_metapage.h:81 [inline]
 ea_write+0x693/0xe50 fs/jfs/xattr.c:280
 ea_put fs/jfs/xattr.c:621 [inline]
 __jfs_setxattr+0xa05/0x1360 fs/jfs/xattr.c:787
 __jfs_xattr_set+0xfb/0x190 fs/jfs/xattr.c:936
 __vfs_setxattr+0x468/0x4a0 fs/xattr.c:200
 __vfs_setxattr_noperm+0x12e/0x660 fs/xattr.c:234
 vfs_setxattr+0x223/0x430 fs/xattr.c:321
 do_setxattr fs/xattr.c:636 [inline]
 filename_setxattr+0x2dd/0x480 fs/xattr.c:665
 path_setxattrat+0x3f7/0x4c0 fs/xattr.c:713
 __do_sys_setxattr fs/xattr.c:747 [inline]
 __se_sys_setxattr fs/xattr.c:743 [inline]
 __x64_sys_setxattr+0xbc/0xe0 fs/xattr.c:743
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8ba718d169
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:00007f8ba80be038 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc
RAX: ffffffffffffffda RBX: 00007f8ba73a5fa0 RCX: 00007f8ba718d169
RDX: 0000200000000380 RSI: 0000200000000000 RDI: 0000200000000340
RBP: 00007f8ba720e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000841 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f8ba73a5fa0 R15: 00007fffb3a4a858
 </TASK>

Allocated by task 5322:
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
 unpoison_slab_object mm/kasan/common.c:319 [inline]
 __kasan_slab_alloc+0x66/0x80 mm/kasan/common.c:345
 kasan_slab_alloc include/linux/kasan.h:250 [inline]
 slab_post_alloc_hook mm/slub.c:4138 [inline]
 slab_alloc_node mm/slub.c:4187 [inline]
 kmem_cache_alloc_noprof+0x1e1/0x390 mm/slub.c:4194
 mempool_alloc_noprof+0x199/0x5a0 mm/mempool.c:402
 alloc_metapage fs/jfs/jfs_metapage.c:182 [inline]
 __get_metapage+0x5f4/0xdc0 fs/jfs/jfs_metapage.c:652
 ea_write+0x620/0xe50 fs/jfs/xattr.c:256
 ea_put fs/jfs/xattr.c:621 [inline]
 __jfs_setxattr+0xa05/0x1360 fs/jfs/xattr.c:787
 __jfs_xattr_set+0xfb/0x190 fs/jfs/xattr.c:936
 __vfs_setxattr+0x468/0x4a0 fs/xattr.c:200
 __vfs_setxattr_noperm+0x12e/0x660 fs/xattr.c:234
 vfs_setxattr+0x223/0x430 fs/xattr.c:321
 do_setxattr fs/xattr.c:636 [inline]
 filename_setxattr+0x2dd/0x480 fs/xattr.c:665
 path_setxattrat+0x3f7/0x4c0 fs/xattr.c:713
 __do_sys_setxattr fs/xattr.c:747 [inline]
 __se_sys_setxattr fs/xattr.c:743 [inline]
 __x64_sys_setxattr+0xbc/0xe0 fs/xattr.c:743
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Freed by task 5323:
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:576
 poison_slab_object mm/kasan/common.c:247 [inline]
 __kasan_slab_free+0x59/0x70 mm/kasan/common.c:264
 kasan_slab_free include/linux/kasan.h:233 [inline]
 slab_free_hook mm/slub.c:2376 [inline]
 slab_free mm/slub.c:4633 [inline]
 kmem_cache_free+0x197/0x410 mm/slub.c:4735
 free_metapage fs/jfs/jfs_metapage.c:197 [inline]
 metapage_release_folio+0x412/0x540 fs/jfs/jfs_metapage.c:552
 folio_invalidate mm/truncate.c:126 [inline]
 truncate_cleanup_folio+0x203/0x300 mm/truncate.c:146
 truncate_inode_folio mm/truncate.c:161 [inline]
 truncate_inode_pages_range+0xcd4/0x10e0 mm/truncate.c:383
 jfs_reconfigure+0x5ef/0x9d0 fs/jfs/super.c:406
 reconfigure_super+0x43a/0x870 fs/super.c:1083
 vfs_cmd_reconfigure fs/fsopen.c:262 [inline]
 vfs_fsconfig_locked fs/fsopen.c:291 [inline]
 __do_sys_fsconfig fs/fsopen.c:467 [inline]
 __se_sys_fsconfig+0xb5e/0xf40 fs/fsopen.c:344
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The buggy address belongs to the object at ffff8880524225d0
 which belongs to the cache jfs_mp of size 184
The buggy address is located 152 bytes inside of
 freed 184-byte region [ffff8880524225d0, ffff888052422688)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x52422
flags: 0x4fff00000000000(node=1|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 04fff00000000000 ffff88803350c640 dead000000000122 0000000000000000
raw: 0000000000000000 0000000080100010 00000000f5000000 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 0xd2800(GFP_NOWAIT|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5324, tgid 5321 (syz.0.0), ts 58108410461, free_ts 58102398725
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1f4/0x240 mm/page_alloc.c:1551
 prep_new_page mm/page_alloc.c:1559 [inline]
 get_page_from_freelist+0x3695/0x37e0 mm/page_alloc.c:3477
 __alloc_frozen_pages_noprof+0x2c5/0x7b0 mm/page_alloc.c:4740
 alloc_pages_mpol+0x339/0x690 mm/mempolicy.c:2301
 alloc_slab_page mm/slub.c:2446 [inline]
 allocate_slab+0x8f/0x3a0 mm/slub.c:2610
 new_slab mm/slub.c:2663 [inline]
 ___slab_alloc+0xc3b/0x1500 mm/slub.c:3849
 __slab_alloc+0x58/0xa0 mm/slub.c:3939
 __slab_alloc_node mm/slub.c:4014 [inline]
 slab_alloc_node mm/slub.c:4175 [inline]
 kmem_cache_alloc_noprof+0x270/0x390 mm/slub.c:4194
 mempool_alloc_noprof+0x199/0x5a0 mm/mempool.c:402
 alloc_metapage fs/jfs/jfs_metapage.c:182 [inline]
 __get_metapage+0x5f4/0xdc0 fs/jfs/jfs_metapage.c:652
 diNewExt+0xa86/0x3d90 fs/jfs/jfs_imap.c:2275
 diAllocExt fs/jfs/jfs_imap.c:1952 [inline]
 diAllocAG+0x1026/0x2100 fs/jfs/jfs_imap.c:1669
 diAlloc+0x1db/0x1680 fs/jfs/jfs_imap.c:1590
 ialloc+0x8f/0x8c0 fs/jfs/jfs_inode.c:56
 jfs_mkdir+0x1c7/0xbb0 fs/jfs/namei.c:225
 vfs_mkdir+0x2f9/0x500 fs/namei.c:4324
page last free pid 5302 tgid 5302 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1127 [inline]
 free_frozen_pages+0xe16/0x10f0 mm/page_alloc.c:2660
 discard_slab mm/slub.c:2707 [inline]
 __put_partials+0x160/0x1c0 mm/slub.c:3176
 put_cpu_partial+0x17e/0x250 mm/slub.c:3251
 __slab_free+0x294/0x390 mm/slub.c:4503
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:329
 kasan_slab_alloc include/linux/kasan.h:250 [inline]
 slab_post_alloc_hook mm/slub.c:4138 [inline]
 slab_alloc_node mm/slub.c:4187 [inline]
 kmem_cache_alloc_node_noprof+0x1f2/0x3b0 mm/slub.c:4239
 __alloc_skb+0x1c2/0x480 net/core/skbuff.c:596
 netlink_sendmsg+0x65c/0xce0 net/netlink/af_netlink.c:1857
 sock_sendmsg_nosec net/socket.c:718 [inline]
 __sock_sendmsg+0x221/0x270 net/socket.c:733
 ____sys_sendmsg+0x53c/0x870 net/socket.c:2573
 ___sys_sendmsg net/socket.c:2627 [inline]
 __sys_sendmsg+0x271/0x360 net/socket.c:2659
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Memory state around the buggy address:
 ffff888052422500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff888052422580: 00 00 fc fc fc fc fc fc fc fc fa fb fb fb fb fb
>ffff888052422600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                                          ^
 ffff888052422680: fb fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff888052422700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================