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linux/fs/cifs
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Paulo Alcantara ded3cfdefe smb: client: fix OOB in smbCalcSize() 
[ Upstream commit b35858b3786ddbb56e1c35138ba25d6adf8d0bef ]

Validate @smb->WordCount to avoid reading off the end of @smb and thus
causing the following KASAN splat:

  BUG: KASAN: slab-out-of-bounds in smbCalcSize+0x32/0x40 [cifs]
  Read of size 2 at addr ffff88801c024ec5 by task cifsd/1328

  CPU: 1 PID: 1328 Comm: cifsd Not tainted 6.7.0-rc5 
  Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS
  rel-1.16.2-3-gd478f380-rebuilt.opensuse.org 04/01/2014
  Call Trace:
   <TASK>
   dump_stack_lvl+0x4a/0x80
   print_report+0xcf/0x650
   ? srso_alias_return_thunk+0x5/0xfbef5
   ? srso_alias_return_thunk+0x5/0xfbef5
   ? __phys_addr+0x46/0x90
   kasan_report+0xd8/0x110
   ? smbCalcSize+0x32/0x40 [cifs]
   ? smbCalcSize+0x32/0x40 [cifs]
   kasan_check_range+0x105/0x1b0
   smbCalcSize+0x32/0x40 [cifs]
   checkSMB+0x162/0x370 [cifs]
   ? __pfx_checkSMB+0x10/0x10 [cifs]
   cifs_handle_standard+0xbc/0x2f0 [cifs]
   ? srso_alias_return_thunk+0x5/0xfbef5
   cifs_demultiplex_thread+0xed1/0x1360 [cifs]
   ? __pfx_cifs_demultiplex_thread+0x10/0x10 [cifs]
   ? srso_alias_return_thunk+0x5/0xfbef5
   ? lockdep_hardirqs_on_prepare+0x136/0x210
   ? __pfx_lock_release+0x10/0x10
   ? srso_alias_return_thunk+0x5/0xfbef5
   ? mark_held_locks+0x1a/0x90
   ? lockdep_hardirqs_on_prepare+0x136/0x210
   ? srso_alias_return_thunk+0x5/0xfbef5
   ? srso_alias_return_thunk+0x5/0xfbef5
   ? __kthread_parkme+0xce/0xf0
   ? __pfx_cifs_demultiplex_thread+0x10/0x10 [cifs]
   kthread+0x18d/0x1d0
   ? kthread+0xdb/0x1d0
   ? __pfx_kthread+0x10/0x10
   ret_from_fork+0x34/0x60
   ? __pfx_kthread+0x10/0x10
   ret_from_fork_asm+0x1b/0x30
   </TASK>

This fixes CVE-2023-6606.

Reported-by: j51569436@gmail.com
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218218
Cc: stable@vger.kernel.org
Signed-off-by: Paulo Alcantara (SUSE) <pc@manguebit.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-05 15:13:38 +01:00
..
asn1.c
cifs: decoding negTokenInit with generic ASN1 decoder
2021-06-20 21:28:17 -05:00
cache.c
cifs: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
cifs_debug.c
cifs: print session id while listing open files
2023-03-30 12:47:55 +02:00
cifs_debug.h
cifs: use SPDX-Licence-Identifier
2021-06-20 21:28:17 -05:00
cifs_dfs_ref.c
cifs: use fs_context for automounts
2023-08-03 10:22:29 +02:00
cifs_fs_sb.h
cifs: support nested dfs links over reconnect
2022-12-02 17:40:59 +01:00
cifs_ioctl.h
cifs: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
cifs_spnego_negtokeninit.asn1
cifs: decoding negTokenInit with generic ASN1 decoder
2021-06-20 21:28:17 -05:00
cifs_spnego.c
cifs: spnego: add ';' in HOST_KEY_LEN
2023-11-28 16:56:25 +00:00
cifs_spnego.h
cifs: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
cifs_swn.c
cifs: remove support for NTLM and weaker authentication algorithms
2021-08-25 15:47:06 -05:00
cifs_swn.h
cifs: simplify SWN code with dummy funcs instead of ifdefs
2021-04-25 16:28:22 -05:00
cifs_unicode.c
cifs: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
cifs_unicode.h
…
cifs_uniupr.h
…
cifsacl.c
cifs: modefromsids must add an ACE for authenticated users
2022-03-08 19:12:30 +01:00
cifsacl.h
cifs: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
cifsencrypt.c
cifs: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
cifsfs.c
cifs: Fix non-availability of dedup breaking generic/304
2023-12-13 18:36:50 +01:00
cifsfs.h
cifs: fix DFS traversal oops without CONFIG_CIFS_DFS_UPCALL
2023-04-05 11:24:59 +02:00
cifsglob.h
SMB3: drop reference to cfile before sending oplock break
2023-05-24 17:36:54 +01:00
cifspdu.h
cifs: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
cifsproto.h
cifs: fix oops during encryption
2023-01-12 11:58:41 +01:00
cifsroot.c
…
cifssmb.c
cifs: prevent infinite recursion in CIFSGetDFSRefer()
2023-04-05 11:24:58 +02:00
connect.c
smb3: fix problem remounting a share after shutdown
2023-05-17 11:50:23 +02:00
dfs_cache.c
cifs: fix return of uninitialized rc in dfs_cache_update_tgthint()
2023-02-06 07:59:00 +01:00
dfs_cache.h
cifs: support share failover when remounting
2021-07-22 11:43:23 -05:00
dir.c
cifs: Fix xid leak in cifs_create()
2022-10-29 10:12:56 +02:00
dns_resolve.c
cifs: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
dns_resolve.h
cifs: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
export.c
cifs: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
file.c
cifs: Release folio lock on fscache read hit.
2023-08-26 14:23:36 +02:00
fs_context.c
cifs: mapchars mount option ignored
2023-05-30 13:55:32 +01:00
fs_context.h
cifs: sanitize paths in cifs_update_super_prepath.
2023-04-13 16:48:24 +02:00
fscache.c
cifs: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
fscache.h
cifs: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
inode.c
smb3: correct places where ENOTSUPP is used instead of preferred EOPNOTSUPP
2023-10-06 13:18:17 +02:00
ioctl.c
cifs: Fix wrong return value checking when GETFLAGS
2022-11-26 09:24:41 +01:00
Kconfig
cifs: create a MD4 module and switch cifs.ko to use it
2021-08-25 15:48:00 -05:00
link.c
cifs: Fix uninitialized memory read for smb311 posix symlink create
2023-01-18 11:48:49 +01:00
Makefile
cifs: decoding negTokenInit with generic ASN1 decoder
2021-06-20 21:28:17 -05:00
misc.c
smb: client: fix OOB in smbCalcSize()
2024-01-05 15:13:38 +01:00
netlink.c
cifs: Constify static struct genl_ops
2021-06-20 21:28:16 -05:00
netlink.h
cifs: Register generic netlink family
2020-12-14 09:16:22 -06:00
netmisc.c
cifs: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
nterr.c
…
nterr.h
…
ntlmssp.h
cifs: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
readdir.c
cifs: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
rfc1002pdu.h
cifs: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
sess.c
cifs: Fix xid leak in cifs_ses_add_channel()
2022-10-29 10:12:56 +02:00
smb1ops.c
SMB3: drop reference to cfile before sending oplock break
2023-05-24 17:36:54 +01:00
smb2file.c
cifs: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
smb2glob.h
cifs: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
smb2inode.c
cifs: Fix smb2_set_path_size()
2023-03-22 13:31:33 +01:00
smb2maperror.c
cifs: cifs_md4 convert to SPDX identifier
2021-08-25 15:51:52 -05:00
smb2misc.c
smb: client: fix NULL deref in asn1_ber_decoder()
2024-01-05 15:13:31 +01:00
smb2ops.c
smb: client: fix OOB in smb2_query_reparse_point()
2024-01-05 15:13:32 +01:00
smb2pdu.c
smb: client: fix OOB in SMB2_query_info_init()
2024-01-05 15:13:38 +01:00
smb2pdu.h
ksmbd: fix wrong name of SMB2_CREATE_ALLOCATION_SIZE
2024-01-05 15:13:31 +01:00
smb2proto.h
cifs: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
smb2status.h
cifs: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
smb2transport.c
cifs: fix check of rc in function generate_smb3signingkey
2023-11-28 16:56:25 +00:00
smbdirect.c
cifs: Fix warning and UAF when destroy the MR list
2023-03-10 09:39:32 +01:00
smbdirect.h
…
smbencrypt.c
cifs: rename cifs_common to smbfs_common
2021-09-08 23:59:26 -05:00
smberr.h
cifs: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
trace.c
…
trace.h
cifs: fix string declarations and assignments in tracepoints
2021-05-27 14:04:32 -05:00
transport.c
cifs: Move the in_send statistic to __smb_send_rqst()
2023-03-22 13:31:22 +01:00
unc.c
cifs: don't cargo-cult strndup()
2021-04-25 16:28:23 -05:00
winucase.c
cifs: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
xattr.c
smb3: fix caching of ctime on setxattr
2023-12-08 08:48:04 +01:00