android_kernel_samsung_sm8650/fs/smb/client
Paulo Alcantara c60e10d154 smb: client: fix OOB in smbCalcSize()
commit b35858b3786ddbb56e1c35138ba25d6adf8d0bef upstream.

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 #9
  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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-01-01 12:39:05 +00:00
..
asn1.c
cached_dir.c cifs: update desired access while requesting for directory lease 2023-09-19 12:27:57 +02:00
cached_dir.h
cifs_debug.c smb: client: fix potential OOB in cifs_dump_detail() 2024-01-01 12:39:04 +00:00
cifs_debug.h
cifs_dfs_ref.c cifs: use fs_context for automounts 2023-09-19 12:28:00 +02:00
cifs_fs_sb.h
cifs_ioctl.h smb3: allow dumping session and tcon id to improve stats analysis and debugging 2023-12-03 07:32:09 +01:00
cifs_spnego_negtokeninit.asn1
cifs_spnego.c cifs: spnego: add ';' in HOST_KEY_LEN 2023-11-28 17:07:06 +00:00
cifs_spnego.h
cifs_swn.c
cifs_swn.h
cifs_unicode.c
cifs_unicode.h
cifs_uniupr.h
cifsacl.c
cifsacl.h
cifsencrypt.c
cifsfs.c cifs: Fix flushing, invalidation and file size with FICLONE 2023-12-13 18:39:28 +01:00
cifsfs.h cifs: minor cleanup of some headers 2023-12-03 07:32:09 +01:00
cifsglob.h smb: client: fix OOB in cifsd when receiving compounded resps 2024-01-01 12:39:04 +00:00
cifspdu.h smb3: fix creating FIFOs when mounting with "sfu" mount option 2023-11-28 17:07:15 +00:00
cifsproto.h smb: client: fix potential deadlock when releasing mids 2023-11-28 17:07:15 +00:00
cifsroot.c
cifssmb.c
connect.c smb: client: fix OOB in cifsd when receiving compounded resps 2024-01-01 12:39:04 +00:00
dfs_cache.c
dfs_cache.h
dir.c
dns_resolve.c
dns_resolve.h
export.c
file.c cifs: Release folio lock on fscache read hit. 2023-08-23 17:52:39 +02:00
fs_context.c fs/smb/client: Reset password pointer to NULL 2023-10-06 14:57:05 +02:00
fs_context.h
fscache.c smb: propagate error code of extract_sharename() 2023-09-19 12:28:00 +02:00
fscache.h
inode.c smb: client: report correct st_size for SMB and NFS symlinks 2023-12-08 08:51:13 +01:00
ioctl.c smb3: allow dumping session and tcon id to improve stats analysis and debugging 2023-12-03 07:32:09 +01:00
Kconfig
link.c
Makefile
misc.c smb: client: fix OOB in smbCalcSize() 2024-01-01 12:39:05 +00:00
netlink.c
netlink.h
netmisc.c
nterr.c
nterr.h
ntlmssp.h
readdir.c
rfc1002pdu.h
sess.c cifs: account for primary channel in the interface list 2023-12-03 07:32:09 +01:00
smb1ops.c
smb2file.c
smb2glob.h
smb2inode.c smb: client: fix broken file attrs with nodfs mounts 2023-07-19 16:21:44 +02:00
smb2maperror.c
smb2misc.c smb: client: fix NULL deref in asn1_ber_decoder() 2023-12-20 17:00:27 +01:00
smb2ops.c smb: client: fix OOB in cifsd when receiving compounded resps 2024-01-01 12:39:04 +00:00
smb2pdu.c smb: client: fix OOB in SMB2_query_info_init() 2024-01-01 12:39:05 +00:00
smb2pdu.h
smb2proto.h
smb2status.h
smb2transport.c cifs: fix check of rc in function generate_smb3signingkey 2023-11-28 17:07:07 +00:00
smbdirect.c
smbdirect.h
smbencrypt.c
smberr.h
trace.c
trace.h
transport.c smb: client: fix potential deadlock when releasing mids 2023-11-28 17:07:15 +00:00
unc.c
winucase.c
xattr.c smb3: fix caching of ctime on setxattr 2023-11-28 17:07:15 +00:00