ffff88803ec477a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
ffff88803ec477b0: 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+0x72a/0xb90 lib/hexdump.c:193
Read of size 1 at addr ffff88803ec477c0 by task syz-executor.5/14947

CPU: 1 PID: 14947 Comm: syz-executor.5 Not tainted 6.0.0-syzkaller-09039-ga6afa4199d3d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1b1/0x28e lib/dump_stack.c:106
 print_address_description+0x65/0x4b0 mm/kasan/report.c:317
 print_report+0x108/0x1f0 mm/kasan/report.c:433
 kasan_report+0xc3/0xf0 mm/kasan/report.c:495
 hex_dump_to_buffer+0x72a/0xb90 lib/hexdump.c:193
 print_hex_dump+0x131/0x260 lib/hexdump.c:276
 ea_get+0xcfb/0x1290 fs/jfs/xattr.c:561
 __jfs_getxattr+0xc4/0x400 fs/jfs/xattr.c:807
 __vfs_getxattr+0x3de/0x410 fs/xattr.c:407
 cap_inode_need_killpriv+0x41/0x60 security/commoncap.c:301
 security_inode_need_killpriv+0x50/0xb0 security/security.c:1420
 dentry_needs_remove_privs+0xcd/0x1c0 fs/inode.c:1995
 do_truncate+0x153/0x2e0 fs/open.c:57
 handle_truncate fs/namei.c:3216 [inline]
 do_open fs/namei.c:3561 [inline]
 path_openat+0x2770/0x2df0 fs/namei.c:3691
 do_filp_open+0x264/0x4f0 fs/namei.c:3718
 do_sys_openat2+0x124/0x4e0 fs/open.c:1310
 do_sys_open fs/open.c:1326 [inline]
 __do_sys_creat fs/open.c:1402 [inline]
 __se_sys_creat fs/open.c:1396 [inline]
 __x64_sys_creat+0x11f/0x160 fs/open.c:1396
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f314968a5a9
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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f314a803168 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
RAX: ffffffffffffffda RBX: 00007f31497abf80 RCX: 00007f314968a5a9
RDX: 0000000000000000 RSI: 0000000000000015 RDI: 0000000020006280
RBP: 00007f31496e5580 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffefd11670f R14: 00007f314a803300 R15: 0000000000022000
 </TASK>

Allocated by task 14947:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track mm/kasan/common.c:45 [inline]
 set_alloc_info mm/kasan/common.c:437 [inline]
 __kasan_slab_alloc+0xa3/0xd0 mm/kasan/common.c:470
 kasan_slab_alloc include/linux/kasan.h:224 [inline]
 slab_post_alloc_hook mm/slab.h:727 [inline]
 slab_alloc_node mm/slub.c:3248 [inline]
 slab_alloc mm/slub.c:3256 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3263 [inline]
 kmem_cache_alloc_lru+0x175/0x2d0 mm/slub.c:3280
 alloc_inode_sb include/linux/fs.h:3107 [inline]
 jfs_alloc_inode+0x21/0x60 fs/jfs/super.c:105
 alloc_inode fs/inode.c:259 [inline]
 iget_locked+0x191/0x830 fs/inode.c:1286
 jfs_iget+0x20/0x3b0 fs/jfs/inode.c:29
 jfs_lookup+0x1bb/0x380 fs/jfs/namei.c:1462
 lookup_open fs/namei.c:3391 [inline]
 open_last_lookups fs/namei.c:3481 [inline]
 path_openat+0x10e6/0x2df0 fs/namei.c:3688
 do_filp_open+0x264/0x4f0 fs/namei.c:3718
 do_sys_openat2+0x124/0x4e0 fs/open.c:1310
 do_sys_open fs/open.c:1326 [inline]
 __do_sys_creat fs/open.c:1402 [inline]
 __se_sys_creat fs/open.c:1396 [inline]
 __x64_sys_creat+0x11f/0x160 fs/open.c:1396
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

Last potentially related work creation:
 kasan_save_stack+0x2b/0x50 mm/kasan/common.c:38
 __kasan_record_aux_stack+0xaf/0xc0 mm/kasan/generic.c:348
 call_rcu+0x163/0x970 kernel/rcu/tree.c:2796
 dispose_list fs/inode.c:697 [inline]
 evict_inodes+0x658/0x700 fs/inode.c:747
 generic_shutdown_super+0x94/0x310 fs/super.c:479
 kill_block_super+0x79/0xd0 fs/super.c:1427
 deactivate_locked_super+0xa7/0xf0 fs/super.c:331
 cleanup_mnt+0x4ce/0x560 fs/namespace.c:1186
 task_work_run+0x146/0x1c0 kernel/task_work.c:177
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0x124/0x150 kernel/entry/common.c:169
 exit_to_user_mode_prepare+0xb2/0x140 kernel/entry/common.c:201
 __syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline]
 syscall_exit_to_user_mode+0x26/0x60 kernel/entry/common.c:294
 do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

Second to last potentially related work creation:
 kasan_save_stack+0x2b/0x50 mm/kasan/common.c:38
 __kasan_record_aux_stack+0xaf/0xc0 mm/kasan/generic.c:348
 call_rcu+0x163/0x970 kernel/rcu/tree.c:2796
 dispose_list fs/inode.c:697 [inline]
 evict_inodes+0x658/0x700 fs/inode.c:747
 generic_shutdown_super+0x94/0x310 fs/super.c:479
 kill_block_super+0x79/0xd0 fs/super.c:1427
 deactivate_locked_super+0xa7/0xf0 fs/super.c:331
 cleanup_mnt+0x4ce/0x560 fs/namespace.c:1186
 task_work_run+0x146/0x1c0 kernel/task_work.c:177
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0x124/0x150 kernel/entry/common.c:169
 exit_to_user_mode_prepare+0xb2/0x140 kernel/entry/common.c:201
 __syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline]
 syscall_exit_to_user_mode+0x26/0x60 kernel/entry/common.c:294
 do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

The buggy address belongs to the object at ffff88803ec46f00
 which belongs to the cache jfs_ip of size 2240
The buggy address is located 0 bytes to the right of
 2240-byte region [ffff88803ec46f00, ffff88803ec477c0)

The buggy address belongs to the physical page:
page:ffffea0000fb1000 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88803ec40000 pfn:0x3ec40
head:ffffea0000fb1000 order:3 compound_mapcount:0 compound_pincount:0
memcg:ffff88807d105c01
flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000010200 ffffea0001c8ec00 dead000000000002 ffff888018f08280
raw: ffff88803ec40000 00000000800d000b 00000001ffffffff ffff88807d105c01
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Reclaimable, gfp_mask 0x1d2050(__GFP_IO|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL|__GFP_RECLAIMABLE), pid 13173, tgid 13172 (syz-executor.5), ts 232385068567, free_ts 232004332551
 prep_new_page mm/page_alloc.c:2532 [inline]
 get_page_from_freelist+0x742/0x7c0 mm/page_alloc.c:4283
 __alloc_pages+0x259/0x560 mm/page_alloc.c:5549
 alloc_slab_page+0x70/0xf0 mm/slub.c:1829
 allocate_slab+0x5e/0x520 mm/slub.c:1974
 new_slab mm/slub.c:2034 [inline]
 ___slab_alloc+0x3ee/0xc40 mm/slub.c:3036
 __slab_alloc mm/slub.c:3123 [inline]
 slab_alloc_node mm/slub.c:3214 [inline]
 slab_alloc mm/slub.c:3256 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3263 [inline]
 kmem_cache_alloc_lru+0x225/0x2d0 mm/slub.c:3280
 alloc_inode_sb include/linux/fs.h:3107 [inline]
 jfs_alloc_inode+0x21/0x60 fs/jfs/super.c:105
 alloc_inode fs/inode.c:259 [inline]
 new_inode_pseudo+0x61/0x1d0 fs/inode.c:1018
 new_inode+0x25/0x1d0 fs/inode.c:1046
 diReadSpecial+0x4e/0x670 fs/jfs/jfs_imap.c:422
 jfs_mount+0x39b/0x830 fs/jfs/jfs_mount.c:166
 jfs_fill_super+0x590/0xc50 fs/jfs/super.c:556
 mount_bdev+0x26c/0x3a0 fs/super.c:1400
 legacy_get_tree+0xea/0x180 fs/fs_context.c:610
 vfs_get_tree+0x88/0x270 fs/super.c:1530
 do_new_mount+0x289/0xad0 fs/namespace.c:3040
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1449 [inline]
 free_pcp_prepare+0x812/0x900 mm/page_alloc.c:1499
 free_unref_page_prepare mm/page_alloc.c:3380 [inline]
 free_unref_page+0x7d/0x5f0 mm/page_alloc.c:3476
 qlist_free_all+0x2b/0x70 mm/kasan/quarantine.c:187
 kasan_quarantine_reduce+0x169/0x180 mm/kasan/quarantine.c:294
 __kasan_slab_alloc+0x2f/0xd0 mm/kasan/common.c:447
 kasan_slab_alloc include/linux/kasan.h:224 [inline]
 slab_post_alloc_hook mm/slab.h:727 [inline]
 slab_alloc_node mm/slub.c:3248 [inline]
 kmem_cache_alloc_node+0x1cc/0x350 mm/slub.c:3298
 __alloc_skb+0xcf/0x2b0 net/core/skbuff.c:497
 alloc_skb_fclone include/linux/skbuff.h:1315 [inline]
 tcp_stream_alloc_skb+0x3c/0x300 net/ipv4/tcp.c:861
 tcp_sendmsg_locked+0xd70/0x40c0 net/ipv4/tcp.c:1324
 tcp_sendmsg+0x2c/0x40 net/ipv4/tcp.c:1482
 sock_sendmsg_nosec net/socket.c:714 [inline]
 sock_sendmsg net/socket.c:734 [inline]
 sock_write_iter+0x3d4/0x540 net/socket.c:1108
 call_write_iter include/linux/fs.h:2190 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x7dc/0xc50 fs/read_write.c:584
 ksys_write+0x177/0x2a0 fs/read_write.c:637
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

Memory state around the buggy address:
 ffff88803ec47680: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff88803ec47700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff88803ec47780: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc
                                           ^
 ffff88803ec47800: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88803ec47880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================