ffff8880775e36d0: 00 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00  ................
ffff8880775e36e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
ffff8880775e36f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
==================================================================
BUG: KASAN: slab-out-of-bounds in hex_dump_to_buffer+0xdc1/0xdf0 lib/hexdump.c:193
Read of size 1 at addr ffff8880775e3700 by task syz-executor360/5233

CPU: 1 PID: 5233 Comm: syz-executor360 Not tainted 6.1.0-rc3-next-20221104-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:253 [inline]
 print_report+0x15e/0x45d mm/kasan/report.c:364
 kasan_report+0xbb/0x1f0 mm/kasan/report.c:464
 hex_dump_to_buffer+0xdc1/0xdf0 lib/hexdump.c:193
 print_hex_dump+0x12f/0x1d0 lib/hexdump.c:276
 ea_get.cold+0xaa/0x197 fs/jfs/xattr.c:561
 __jfs_getxattr+0xc4/0x3d0 fs/jfs/xattr.c:807
 jfs_get_acl+0x139/0x190 fs/jfs/acl.c:38
 __get_acl.part.0+0x235/0x390 fs/posix_acl.c:159
 __get_acl fs/posix_acl.c:132 [inline]
 get_inode_acl fs/posix_acl.c:184 [inline]
 posix_acl_create.part.0+0xca/0x4e0 fs/posix_acl.c:647
 posix_acl_create+0x12b/0x170 fs/posix_acl.c:681
 jfs_init_acl+0x85/0x390 fs/jfs/acl.c:135
 jfs_mkdir+0x28a/0xab0 fs/jfs/namei.c:236
 vfs_mkdir+0x489/0x740 fs/namei.c:4035
 do_mkdirat+0x277/0x2f0 fs/namei.c:4060
 __do_sys_mkdirat fs/namei.c:4075 [inline]
 __se_sys_mkdirat fs/namei.c:4073 [inline]
 __x64_sys_mkdirat+0x115/0x170 fs/namei.c:4073
 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+0x63/0xcd
RIP: 0033:0x7f3f13cffd69
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 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffcd0da4af8 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 00007f3f13cffd69
RDX: 0000000000000050 RSI: 0000000020000040 RDI: 0000000000000003
RBP: 00007f3f13cbf530 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000f8008000
R13: 0000000000000000 R14: 00080000000000f4 R15: 0000000000000000
 </TASK>

Allocated by task 5233:
 kasan_save_stack+0x1e/0x40 mm/kasan/common.c:45
 kasan_set_track+0x21/0x30 mm/kasan/common.c:52
 __kasan_slab_alloc+0x7e/0x80 mm/kasan/common.c:330
 kasan_slab_alloc include/linux/kasan.h:202 [inline]
 slab_post_alloc_hook mm/slab.h:747 [inline]
 slab_alloc_node mm/slub.c:3390 [inline]
 slab_alloc mm/slub.c:3398 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3405 [inline]
 kmem_cache_alloc_lru+0x254/0x730 mm/slub.c:3421
 alloc_inode_sb include/linux/fs.h:3089 [inline]
 jfs_alloc_inode+0x23/0x60 fs/jfs/super.c:105
 alloc_inode+0x61/0x230 fs/inode.c:259
 iget_locked+0x1b7/0x6f0 fs/inode.c:1286
 jfs_iget+0x1a/0x4d0 fs/jfs/inode.c:29
 jfs_lookup+0x246/0x2f0 fs/jfs/namei.c:1462
 lookup_open.isra.0+0x74c/0x1270 fs/namei.c:3391
 open_last_lookups fs/namei.c:3481 [inline]
 path_openat+0x975/0x2a50 fs/namei.c:3710
 do_filp_open+0x1b6/0x400 fs/namei.c:3740
 do_sys_openat2+0x16d/0x4c0 fs/open.c:1310
 do_sys_open fs/open.c:1326 [inline]
 __do_sys_open fs/open.c:1334 [inline]
 __se_sys_open fs/open.c:1330 [inline]
 __x64_sys_open+0x119/0x1c0 fs/open.c:1330
 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+0x63/0xcd

The buggy address belongs to the object at ffff8880775e2e40
 which belongs to the cache jfs_ip of size 2240
The buggy address is located 0 bytes to the right of
 2240-byte region [ffff8880775e2e40, ffff8880775e3700)

The buggy address belongs to the physical page:
page:ffffea0001dd7800 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x775e0
head:ffffea0001dd7800 order:3 compound_mapcount:0 compound_pincount:0
flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000010200 ffff888145e04000 dead000000000122 0000000000000000
raw: 0000000000000000 00000000800d000d 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Reclaimable, gfp_mask 0xd2050(__GFP_IO|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_RECLAIMABLE), pid 5233, tgid 5233 (syz-executor360), ts 56245489515, free_ts 13305433662
 prep_new_page mm/page_alloc.c:2554 [inline]
 get_page_from_freelist+0x10b5/0x2d50 mm/page_alloc.c:4303
 __alloc_pages+0x1c7/0x5a0 mm/page_alloc.c:5562
 alloc_pages+0x1a6/0x270 mm/mempolicy.c:2285
 alloc_slab_page mm/slub.c:1794 [inline]
 allocate_slab+0x207/0x2c0 mm/slub.c:1941
 new_slab mm/slub.c:1994 [inline]
 ___slab_alloc+0xa91/0x1400 mm/slub.c:3172
 __slab_alloc.constprop.0+0x56/0xa0 mm/slub.c:3271
 slab_alloc_node mm/slub.c:3356 [inline]
 slab_alloc mm/slub.c:3398 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3405 [inline]
 kmem_cache_alloc_lru+0x4ad/0x730 mm/slub.c:3421
 alloc_inode_sb include/linux/fs.h:3089 [inline]
 jfs_alloc_inode+0x23/0x60 fs/jfs/super.c:105
 alloc_inode+0x61/0x230 fs/inode.c:259
 new_inode_pseudo fs/inode.c:1018 [inline]
 new_inode+0x27/0x270 fs/inode.c:1046
 jfs_fill_super+0x436/0xc70 fs/jfs/super.c:544
 mount_bdev+0x34d/0x410 fs/super.c:1401
 legacy_get_tree+0x105/0x220 fs/fs_context.c:610
 vfs_get_tree+0x89/0x2f0 fs/super.c:1531
 do_new_mount fs/namespace.c:3145 [inline]
 path_mount+0x1326/0x1e20 fs/namespace.c:3475
 do_mount fs/namespace.c:3488 [inline]
 __do_sys_mount fs/namespace.c:3696 [inline]
 __se_sys_mount fs/namespace.c:3673 [inline]
 __x64_sys_mount+0x27f/0x300 fs/namespace.c:3673
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1461 [inline]
 free_pcp_prepare+0x65c/0xd90 mm/page_alloc.c:1511
 free_unref_page_prepare mm/page_alloc.c:3402 [inline]
 free_unref_page+0x19/0x4d0 mm/page_alloc.c:3498
 free_contig_range+0xb1/0x180 mm/page_alloc.c:9493
 destroy_args+0xa8/0x64c mm/debug_vm_pgtable.c:1027
 debug_vm_pgtable+0x2954/0x29e5 mm/debug_vm_pgtable.c:1350
 do_one_initcall+0x13d/0x780 init/main.c:1306
 do_initcall_level init/main.c:1379 [inline]
 do_initcalls init/main.c:1395 [inline]
 do_basic_setup init/main.c:1414 [inline]
 kernel_init_freeable+0x6f9/0x782 init/main.c:1634
 kernel_init+0x1a/0x1d0 init/main.c:1522
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308

Memory state around the buggy address:
 ffff8880775e3600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff8880775e3680: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff8880775e3700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
                   ^
 ffff8880775e3780: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff8880775e3800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================