loop4: detected capacity change from 0 to 14901
jfs_mount: diMount failed w/rc = -5
==================================================================
BUG: KASAN: slab-use-after-free in diFree+0x1fbb/0x2fb0 fs/jfs/jfs_imap.c:871
Read of size 4 at addr ffff888018f78004 by task syz-executor.4/13816

CPU: 0 PID: 13816 Comm: syz-executor.4 Not tainted 6.5.0-rc1-syzkaller-00259-g831fe284d827 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:364 [inline]
 print_report+0x163/0x540 mm/kasan/report.c:475
 kasan_report+0x175/0x1b0 mm/kasan/report.c:588
 diFree+0x1fbb/0x2fb0 fs/jfs/jfs_imap.c:871
 jfs_evict_inode+0x32d/0x440 fs/jfs/inode.c:156
 evict+0x2a4/0x620 fs/inode.c:665
 jfs_mount+0x536/0x830 fs/jfs/jfs_mount.c:203
 jfs_fill_super+0x59c/0xc50 fs/jfs/super.c:556
 mount_bdev+0x276/0x3b0 fs/super.c:1391
 legacy_get_tree+0xef/0x190 fs/fs_context.c:611
 vfs_get_tree+0x8c/0x270 fs/super.c:1519
 do_new_mount+0x28f/0xae0 fs/namespace.c:3335
 do_mount fs/namespace.c:3675 [inline]
 __do_sys_mount fs/namespace.c:3884 [inline]
 __se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3861
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f4a0047e22a
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 09 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f4a0129dee8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f4a0129df80 RCX: 00007f4a0047e22a
RDX: 0000000020005d00 RSI: 0000000020000000 RDI: 00007f4a0129df40
RBP: 0000000020005d00 R08: 00007f4a0129df80 R09: 0000000000000010
R10: 0000000000000010 R11: 0000000000000202 R12: 0000000020000000
R13: 00007f4a0129df40 R14: 0000000000002359 R15: 0000000020000240
 </TASK>

Allocated by task 5058:
 kasan_save_stack mm/kasan/common.c:45 [inline]
 kasan_set_track+0x4f/0x70 mm/kasan/common.c:52
 __kasan_slab_alloc+0x66/0x70 mm/kasan/common.c:328
 kasan_slab_alloc include/linux/kasan.h:186 [inline]
 slab_post_alloc_hook+0x6c/0x3b0 mm/slab.h:762
 slab_alloc_node mm/slub.c:3470 [inline]
 slab_alloc mm/slub.c:3478 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3485 [inline]
 kmem_cache_alloc+0x123/0x300 mm/slub.c:3494
 getname_flags+0xbc/0x4e0 fs/namei.c:140
 user_path_at_empty+0x2e/0x180 fs/namei.c:2906
 user_path_at include/linux/namei.h:57 [inline]
 do_utimes_path fs/utimes.c:95 [inline]
 do_utimes+0x115/0x270 fs/utimes.c:145
 __do_sys_utimensat fs/utimes.c:164 [inline]
 __se_sys_utimensat fs/utimes.c:148 [inline]
 __x64_sys_utimensat+0x14f/0x250 fs/utimes.c:148
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

Freed by task 5058:
 kasan_save_stack mm/kasan/common.c:45 [inline]
 kasan_set_track+0x4f/0x70 mm/kasan/common.c:52
 kasan_save_free_info+0x28/0x40 mm/kasan/generic.c:522
 ____kasan_slab_free+0xd6/0x120 mm/kasan/common.c:236
 kasan_slab_free include/linux/kasan.h:162 [inline]
 slab_free_hook mm/slub.c:1792 [inline]
 slab_free_freelist_hook mm/slub.c:1818 [inline]
 slab_free mm/slub.c:3801 [inline]
 kmem_cache_free+0x292/0x500 mm/slub.c:3823
 putname fs/namei.c:273 [inline]
 user_path_at_empty+0x12f/0x180 fs/namei.c:2909
 user_path_at include/linux/namei.h:57 [inline]
 do_utimes_path fs/utimes.c:95 [inline]
 do_utimes+0x115/0x270 fs/utimes.c:145
 __do_sys_utimensat fs/utimes.c:164 [inline]
 __se_sys_utimensat fs/utimes.c:148 [inline]
 __x64_sys_utimensat+0x14f/0x250 fs/utimes.c:148
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

The buggy address belongs to the object at ffff888018f78000
 which belongs to the cache names_cache of size 4096
The buggy address is located 4 bytes inside of
 freed 4096-byte region [ffff888018f78000, ffff888018f79000)

The buggy address belongs to the physical page:
page:ffffea000063de00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x18f78
head:ffffea000063de00 order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff00000010200 ffff8880146758c0 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000070007 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0x1d20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 5058, tgid 5058 (udevd), ts 3077160836889, free_ts 3073353064045
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x1e6/0x210 mm/page_alloc.c:1570
 prep_new_page mm/page_alloc.c:1577 [inline]
 get_page_from_freelist+0x31e8/0x3370 mm/page_alloc.c:3221
 __alloc_pages+0x255/0x670 mm/page_alloc.c:4477
 alloc_slab_page+0x6a/0x160 mm/slub.c:1862
 allocate_slab mm/slub.c:2009 [inline]
 new_slab+0x84/0x2f0 mm/slub.c:2062
 ___slab_alloc+0xade/0x1100 mm/slub.c:3215
 __slab_alloc mm/slub.c:3314 [inline]
 __slab_alloc_node mm/slub.c:3367 [inline]
 slab_alloc_node mm/slub.c:3460 [inline]
 slab_alloc mm/slub.c:3478 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3485 [inline]
 kmem_cache_alloc+0x1bf/0x300 mm/slub.c:3494
 getname_flags+0xbc/0x4e0 fs/namei.c:140
 user_path_at_empty+0x2e/0x180 fs/namei.c:2906
 user_path_at include/linux/namei.h:57 [inline]
 do_utimes_path fs/utimes.c:95 [inline]
 do_utimes+0x115/0x270 fs/utimes.c:145
 __do_sys_utimensat fs/utimes.c:164 [inline]
 __se_sys_utimensat fs/utimes.c:148 [inline]
 __x64_sys_utimensat+0x14f/0x250 fs/utimes.c:148
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1161 [inline]
 free_unref_page_prepare+0x903/0xa30 mm/page_alloc.c:2348
 free_unref_page+0x37/0x3f0 mm/page_alloc.c:2443
 free_large_kmalloc+0xff/0x190 mm/slab_common.c:962
 diUnmount+0xf3/0x100 fs/jfs/jfs_imap.c:195
 jfs_umount+0x1fc/0x3a0 fs/jfs/jfs_umount.c:80
 jfs_fill_super+0x91a/0xc50 fs/jfs/super.c:600
 mount_bdev+0x276/0x3b0 fs/super.c:1391
 legacy_get_tree+0xef/0x190 fs/fs_context.c:611
 vfs_get_tree+0x8c/0x270 fs/super.c:1519
 do_new_mount+0x28f/0xae0 fs/namespace.c:3335
 do_mount fs/namespace.c:3675 [inline]
 __do_sys_mount fs/namespace.c:3884 [inline]
 __se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3861
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

Memory state around the buggy address:
 ffff888018f77f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff888018f77f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff888018f78000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                   ^
 ffff888018f78080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888018f78100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================