jfs_mount: diMount failed w/rc = -5
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BUG: KASAN: use-after-free in diFree+0x19c6/0x2660 fs/jfs/jfs_imap.c:871
Read of size 4 at addr ffff88802da78004 by task syz-executor.1/28770

CPU: 0 PID: 28770 Comm: syz-executor.1 Not tainted 5.17.0-rc6-next-20220303-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
 print_address_description.constprop.0.cold+0xeb/0x495 mm/kasan/report.c:313
 print_report mm/kasan/report.c:429 [inline]
 kasan_report.cold+0xf4/0x1c6 mm/kasan/report.c:491
 diFree+0x19c6/0x2660 fs/jfs/jfs_imap.c:871
 jfs_evict_inode+0x392/0x470 fs/jfs/inode.c:155
 evict+0x2ed/0x6b0 fs/inode.c:664
 iput_final fs/inode.c:1744 [inline]
 iput.part.0+0x562/0x820 fs/inode.c:1770
 iput+0x58/0x70 fs/inode.c:1760
 diFreeSpecial+0x73/0x100 fs/jfs/jfs_imap.c:548
 jfs_mount+0x1c1/0x7b0 fs/jfs/jfs_mount.c:207
 jfs_fill_super+0x5a4/0xc70 fs/jfs/super.c:560
 mount_bdev+0x34d/0x410 fs/super.c:1367
 legacy_get_tree+0x105/0x220 fs/fs_context.c:610
 vfs_get_tree+0x89/0x2f0 fs/super.c:1497
 do_new_mount fs/namespace.c:3025 [inline]
 path_mount+0x1320/0x1fa0 fs/namespace.c:3355
 do_mount fs/namespace.c:3368 [inline]
 __do_sys_mount fs/namespace.c:3576 [inline]
 __se_sys_mount fs/namespace.c:3553 [inline]
 __x64_sys_mount+0x27f/0x300 fs/namespace.c:3553
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fb25168a57a
Code: 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 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:00007fb25272ff88 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007fb25168a57a
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fb25272ffe0
RBP: 00007fb252730020 R08: 00007fb252730020 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000020000000
R13: 0000000020000100 R14: 00007fb25272ffe0 R15: 0000000020000040
 </TASK>

The buggy address belongs to the physical page:
page:ffffea0000b69e00 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2da78
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 ffffea00006c8a08 ffffea0000b83208 0000000000000000
raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as freed
page last allocated via order 3, migratetype Unmovable, gfp_mask 0x140cc0(GFP_USER|__GFP_COMP), pid 27682, tgid 27681 (syz-executor.1), ts 1014247463284, free_ts 1014258364459
 prep_new_page mm/page_alloc.c:2438 [inline]
 get_page_from_freelist+0xa7f/0x3ec0 mm/page_alloc.c:4182
 __alloc_pages+0x1b2/0x500 mm/page_alloc.c:5400
 alloc_pages+0x1aa/0x310 mm/mempolicy.c:2268
 kmalloc_order+0x34/0xf0 mm/slab_common.c:944
 kmalloc_order_trace+0x14/0x120 mm/slab_common.c:960
 kmalloc_large include/linux/slab.h:513 [inline]
 kmalloc include/linux/slab.h:577 [inline]
 diMount+0x2a/0x830 fs/jfs/jfs_imap.c:105
 jfs_mount+0x15d/0x7b0 fs/jfs/jfs_mount.c:100
 jfs_fill_super+0x5a4/0xc70 fs/jfs/super.c:560
 mount_bdev+0x34d/0x410 fs/super.c:1367
 legacy_get_tree+0x105/0x220 fs/fs_context.c:610
 vfs_get_tree+0x89/0x2f0 fs/super.c:1497
 do_new_mount fs/namespace.c:3025 [inline]
 path_mount+0x1320/0x1fa0 fs/namespace.c:3355
 do_mount fs/namespace.c:3368 [inline]
 __do_sys_mount fs/namespace.c:3576 [inline]
 __se_sys_mount fs/namespace.c:3553 [inline]
 __x64_sys_mount+0x27f/0x300 fs/namespace.c:3553
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1353 [inline]
 free_pcp_prepare+0x549/0xd20 mm/page_alloc.c:1403
 free_unref_page_prepare mm/page_alloc.c:3325 [inline]
 free_unref_page+0x19/0x690 mm/page_alloc.c:3420
 diUnmount+0xed/0x120 fs/jfs/jfs_imap.c:195
 jfs_mount+0x500/0x7b0 fs/jfs/jfs_mount.c:205
 jfs_fill_super+0x5a4/0xc70 fs/jfs/super.c:560
 mount_bdev+0x34d/0x410 fs/super.c:1367
 legacy_get_tree+0x105/0x220 fs/fs_context.c:610
 vfs_get_tree+0x89/0x2f0 fs/super.c:1497
 do_new_mount fs/namespace.c:3025 [inline]
 path_mount+0x1320/0x1fa0 fs/namespace.c:3355
 do_mount fs/namespace.c:3368 [inline]
 __do_sys_mount fs/namespace.c:3576 [inline]
 __se_sys_mount fs/namespace.c:3553 [inline]
 __x64_sys_mount+0x27f/0x300 fs/namespace.c:3553
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

Memory state around the buggy address:
 ffff88802da77f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88802da77f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff88802da78000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
                   ^
 ffff88802da78080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff88802da78100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
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