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linux/fs/ntfs3
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Edward Lo 277439e7ca fs/ntfs3: Enhance the attribute size check 
commit 4f082a7531 upstream.

This combines the overflow and boundary check so that all attribute size
will be properly examined while enumerating them.

[  169.181521] BUG: KASAN: slab-out-of-bounds in run_unpack+0x2e3/0x570
[  169.183161] Read of size 1 at addr ffff8880094b6240 by task mount/247
[  169.184046]
[  169.184925] CPU: 0 PID: 247 Comm: mount Not tainted 6.0.0-rc7+ #3
[  169.185908] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
[  169.187066] Call Trace:
[  169.187492]  <TASK>
[  169.188049]  dump_stack_lvl+0x49/0x63
[  169.188495]  print_report.cold+0xf5/0x689
[  169.188964]  ? run_unpack+0x2e3/0x570
[  169.189331]  kasan_report+0xa7/0x130
[  169.189714]  ? run_unpack+0x2e3/0x570
[  169.190079]  __asan_load1+0x51/0x60
[  169.190634]  run_unpack+0x2e3/0x570
[  169.191290]  ? run_pack+0x840/0x840
[  169.191569]  ? run_lookup_entry+0xb3/0x1f0
[  169.192443]  ? mi_enum_attr+0x20a/0x230
[  169.192886]  run_unpack_ex+0xad/0x3e0
[  169.193276]  ? run_unpack+0x570/0x570
[  169.193557]  ? ni_load_mi+0x80/0x80
[  169.193889]  ? debug_smp_processor_id+0x17/0x20
[  169.194236]  ? mi_init+0x4a/0x70
[  169.194496]  attr_load_runs_vcn+0x166/0x1c0
[  169.194851]  ? attr_data_write_resident+0x250/0x250
[  169.195188]  mi_read+0x133/0x2c0
[  169.195481]  ntfs_iget5+0x277/0x1780
[  169.196017]  ? call_rcu+0x1c7/0x330
[  169.196392]  ? ntfs_get_block_bmap+0x70/0x70
[  169.196708]  ? evict+0x223/0x280
[  169.197014]  ? __kmalloc+0x33/0x540
[  169.197305]  ? wnd_init+0x15b/0x1b0
[  169.197599]  ntfs_fill_super+0x1026/0x1ba0
[  169.197994]  ? put_ntfs+0x1d0/0x1d0
[  169.198299]  ? vsprintf+0x20/0x20
[  169.198583]  ? mutex_unlock+0x81/0xd0
[  169.198930]  ? set_blocksize+0x95/0x150
[  169.199269]  get_tree_bdev+0x232/0x370
[  169.199750]  ? put_ntfs+0x1d0/0x1d0
[  169.200094]  ntfs_fs_get_tree+0x15/0x20
[  169.200431]  vfs_get_tree+0x4c/0x130
[  169.200714]  path_mount+0x654/0xfe0
[  169.201067]  ? putname+0x80/0xa0
[  169.201358]  ? finish_automount+0x2e0/0x2e0
[  169.201965]  ? putname+0x80/0xa0
[  169.202445]  ? kmem_cache_free+0x1c4/0x440
[  169.203075]  ? putname+0x80/0xa0
[  169.203414]  do_mount+0xd6/0xf0
[  169.203719]  ? path_mount+0xfe0/0xfe0
[  169.203977]  ? __kasan_check_write+0x14/0x20
[  169.204382]  __x64_sys_mount+0xca/0x110
[  169.204711]  do_syscall_64+0x3b/0x90
[  169.205059]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[  169.205571] RIP: 0033:0x7f67a80e948a
[  169.206327] Code: 48 8b 0d 11 fa 2a 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 49 89 ca b8 a5 00 00 008
[  169.208296] RSP: 002b:00007ffddf020f58 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
[  169.209253] RAX: ffffffffffffffda RBX: 000055e2547a6060 RCX: 00007f67a80e948a
[  169.209777] RDX: 000055e2547a6260 RSI: 000055e2547a62e0 RDI: 000055e2547aeaf0
[  169.210342] RBP: 0000000000000000 R08: 000055e2547a6280 R09: 0000000000000020
[  169.210843] R10: 00000000c0ed0000 R11: 0000000000000202 R12: 000055e2547aeaf0
[  169.211307] R13: 000055e2547a6260 R14: 0000000000000000 R15: 00000000ffffffff
[  169.211913]  </TASK>
[  169.212304]
[  169.212680] Allocated by task 0:
[  169.212963] (stack is not available)
[  169.213200]
[  169.213472] The buggy address belongs to the object at ffff8880094b5e00
[  169.213472]  which belongs to the cache UDP of size 1152
[  169.214095] The buggy address is located 1088 bytes inside of
[  169.214095]  1152-byte region [ffff8880094b5e00, ffff8880094b6280)
[  169.214639]
[  169.215004] The buggy address belongs to the physical page:
[  169.215766] page:000000002e324c8c refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x94b4
[  169.218412] head:000000002e324c8c order:2 compound_mapcount:0 compound_pincount:0
[  169.219078] flags: 0xfffffc0010200(slab|head|node=0|zone=1|lastcpupid=0x1fffff)
[  169.220272] raw: 000fffffc0010200 0000000000000000 dead000000000122 ffff888002409b40
[  169.221006] raw: 0000000000000000 00000000800c000c 00000001ffffffff 0000000000000000
[  169.222320] page dumped because: kasan: bad access detected
[  169.222922]
[  169.223119] Memory state around the buggy address:
[  169.224056]  ffff8880094b6100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[  169.224908]  ffff8880094b6180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[  169.225677] >ffff8880094b6200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[  169.226445]                                            ^
[  169.227055]  ffff8880094b6280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[  169.227638]  ffff8880094b6300: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb

Signed-off-by: Edward Lo <edward.lo@ambergroup.io>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
Cc: "Doebel, Bjoern" <doebel@amazon.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2024-03-01 13:26:39 +01:00
..
lib fs/ntfs3: Add missing header and guards to lib/ headers 2021-09-13 19:41:44 +03:00
attrib.c fs/ntfs3: Add NULL ptr dereference checking at the end of attr_allocate_frame() 2024-03-01 13:26:29 +01:00
attrlist.c fs/ntfs3: Disable ATTR_LIST_ENTRY size check 2024-03-01 13:26:29 +01:00
bitfunc.c fs/ntfs3: Remove a useless shadowing variable 2021-09-23 19:05:46 +03:00
bitmap.c fs/ntfs3: Use kvmalloc instead of kmalloc(... __GFP_NOWARN) 2023-11-08 14:10:58 +01:00
debug.h fs/ntfs3. Add forward declarations for structs to debug.h 2021-09-13 19:41:43 +03:00
dir.c fs/ntfs3: Improve ntfs_dir_count 2024-03-01 13:26:28 +01:00
file.c fs/ntfs3: Update inode->i_size after success write into compressed file 2024-03-01 13:26:29 +01:00
frecord.c fs/ntfs3: Fix possible NULL-ptr-deref in ni_readpage_cmpr() 2023-11-08 14:10:58 +01:00
fslog.c fs/ntfs3: Correct function is_rst_area_valid 2024-03-01 13:26:29 +01:00
fsntfs.c fs/ntfs3: Prevent generic message "attempt to access beyond end of device" 2024-03-01 13:26:29 +01:00
index.c fs/ntfs3: Add null pointer checks 2024-02-23 09:12:52 +01:00
inode.c fs/ntfs3: Print warning while fixing hard links count 2024-03-01 13:26:28 +01:00
Kconfig fs/ntfs3: Add Kconfig, Makefile and doc 2021-08-13 07:56:37 -07:00
lznt.c fs/ntfs3: Remove tabs before spaces from comment 2021-09-16 17:01:36 +03:00
Makefile fs/ntfs3: Add Kconfig, Makefile and doc 2021-08-13 07:56:37 -07:00
namei.c fs/ntfs3: Refactoring of various minor issues 2023-05-17 11:53:51 +02:00
ntfs.h fs/ntfs3: Disable ATTR_LIST_ENTRY size check 2024-03-01 13:26:29 +01:00
ntfs_fs.h fs/ntfs3: Prevent generic message "attempt to access beyond end of device" 2024-03-01 13:26:29 +01:00
record.c fs/ntfs3: Enhance the attribute size check 2024-03-01 13:26:39 +01:00
run.c fs/ntfs3: Check fields while reading 2023-07-23 13:49:27 +02:00
super.c fs/ntfs3: Use kvmalloc instead of kmalloc(... __GFP_NOWARN) 2023-11-08 14:10:58 +01:00
upcase.c fs/ntfs3: Change right headers to upcase.c 2021-09-13 19:41:45 +03:00
xattr.c fs/ntfs3: Fix oob in ntfs_listxattr 2024-03-01 13:26:29 +01:00