loop0: detected capacity change from 0 to 32768
=======================================================
WARNING: The mand mount option has been deprecated and
         and is ignored by this kernel. Remove the mand
         option from the mount to silence this warning.
=======================================================
JFS: metapage_get_blocks failed
ERROR: (device loop0): release_metapage: metapage_write_one() failed
ERROR: (device loop0): remounting filesystem as read-only
==================================================================
BUG: KASAN: slab-use-after-free in drop_metapage fs/jfs/jfs_metapage.c:229 [inline]
BUG: KASAN: slab-use-after-free in release_metapage+0x746/0xa90 fs/jfs/jfs_metapage.c:784
Read of size 8 at addr ffff8880534b5028 by task syz.0.0/5323

CPU: 0 UID: 0 PID: 5323 Comm: syz.0.0 Not tainted 6.15.0-rc1-syzkaller-00065-g3b07108ada81 #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
 drop_metapage fs/jfs/jfs_metapage.c:229 [inline]
 release_metapage+0x746/0xa90 fs/jfs/jfs_metapage.c:784
 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:626 [inline]
 __jfs_setxattr+0xa05/0x1360 fs/jfs/xattr.c:792
 __jfs_set_acl+0x12a/0x1b0 fs/jfs/acl.c:87
 jfs_set_acl+0x2be/0x4d0 fs/jfs/acl.c:115
 set_posix_acl fs/posix_acl.c:954 [inline]
 vfs_set_acl+0x806/0xa70 fs/posix_acl.c:1133
 do_set_acl+0xf4/0x180 fs/posix_acl.c:1278
 do_setxattr fs/xattr.c:633 [inline]
 filename_setxattr+0x355/0x480 fs/xattr.c:665
 path_setxattrat+0x3f7/0x4c0 fs/xattr.c:713
 __do_sys_lsetxattr fs/xattr.c:754 [inline]
 __se_sys_lsetxattr fs/xattr.c:750 [inline]
 __x64_sys_lsetxattr+0xbf/0xe0 fs/xattr.c:750
 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: 0033:0x7f0199b8d169
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:00007f019aa71038 EFLAGS: 00000246 ORIG_RAX: 00000000000000bd
RAX: ffffffffffffffda RBX: 00007f0199da5fa0 RCX: 00007f0199b8d169
RDX: 0000200000000640 RSI: 0000200000000280 RDI: 0000200000000240
RBP: 00007f0199c0e730 R08: 0000000000000003 R09: 0000000000000000
R10: 0000000000000024 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f0199da5fa0 R15: 00007ffc2d1fc888
 </TASK>

Allocated by task 5323:
 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:4151 [inline]
 slab_alloc_node mm/slub.c:4200 [inline]
 kmem_cache_alloc_noprof+0x1e1/0x390 mm/slub.c:4207
 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:626 [inline]
 __jfs_setxattr+0xa05/0x1360 fs/jfs/xattr.c:792
 __jfs_set_acl+0x12a/0x1b0 fs/jfs/acl.c:87
 jfs_set_acl+0x2be/0x4d0 fs/jfs/acl.c:115
 set_posix_acl fs/posix_acl.c:954 [inline]
 vfs_set_acl+0x806/0xa70 fs/posix_acl.c:1133
 do_set_acl+0xf4/0x180 fs/posix_acl.c:1278
 do_setxattr fs/xattr.c:633 [inline]
 filename_setxattr+0x355/0x480 fs/xattr.c:665
 path_setxattrat+0x3f7/0x4c0 fs/xattr.c:713
 __do_sys_lsetxattr fs/xattr.c:754 [inline]
 __se_sys_lsetxattr fs/xattr.c:750 [inline]
 __x64_sys_lsetxattr+0xbf/0xe0 fs/xattr.c:750
 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 5324:
 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:2389 [inline]
 slab_free mm/slub.c:4646 [inline]
 kmem_cache_free+0x197/0x410 mm/slub.c:4748
 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:140 [inline]
 truncate_cleanup_folio+0x203/0x300 mm/truncate.c:160
 truncate_inode_pages_range+0x2e7/0x10e0 mm/truncate.c:375
 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 ffff8880534b5000
 which belongs to the cache jfs_mp of size 184
The buggy address is located 40 bytes inside of
 freed 184-byte region [ffff8880534b5000, ffff8880534b50b8)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x534b5
flags: 0x4fff00000000000(node=1|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 04fff00000000000 ffff88801f7528c0 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 5323, tgid 5322 (syz.0.0), ts 75409234877, free_ts 0
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1f4/0x240 mm/page_alloc.c:1717
 prep_new_page mm/page_alloc.c:1725 [inline]
 get_page_from_freelist+0x352b/0x36c0 mm/page_alloc.c:3652
 __alloc_frozen_pages_noprof+0x211/0x5b0 mm/page_alloc.c:4934
 alloc_pages_mpol+0x339/0x690 mm/mempolicy.c:2301
 alloc_slab_page mm/slub.c:2459 [inline]
 allocate_slab+0x8f/0x3a0 mm/slub.c:2623
 new_slab mm/slub.c:2676 [inline]
 ___slab_alloc+0xc3b/0x1500 mm/slub.c:3862
 __slab_alloc+0x58/0xa0 mm/slub.c:3952
 __slab_alloc_node mm/slub.c:4027 [inline]
 slab_alloc_node mm/slub.c:4188 [inline]
 kmem_cache_alloc_noprof+0x270/0x390 mm/slub.c:4207
 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:626 [inline]
 __jfs_setxattr+0xa05/0x1360 fs/jfs/xattr.c:792
 __jfs_set_acl+0x12a/0x1b0 fs/jfs/acl.c:87
 jfs_set_acl+0x2be/0x4d0 fs/jfs/acl.c:115
 set_posix_acl fs/posix_acl.c:954 [inline]
 vfs_set_acl+0x806/0xa70 fs/posix_acl.c:1133
 do_set_acl+0xf4/0x180 fs/posix_acl.c:1278
page_owner free stack trace missing

Memory state around the buggy address:
 ffff8880534b4f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff8880534b4f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff8880534b5000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                  ^
 ffff8880534b5080: fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc fc
 ffff8880534b5100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================