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linux-stable/fs/ksmbd
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David Disseldorp a2f6ded41b ksmbd: avoid out of bounds access in decode_preauth_ctxt() 
commit e7067a4462 upstream.

Confirm that the accessed pneg_ctxt->HashAlgorithms address sits within
the SMB request boundary; deassemble_neg_contexts() only checks that the
eight byte smb2_neg_context header + (client controlled) DataLength are
within the packet boundary, which is insufficient.

Checking for sizeof(struct smb2_preauth_neg_context) is overkill given
that the type currently assumes SMB311_SALT_SIZE bytes of trailing Salt.

Signed-off-by: David Disseldorp <ddiss@suse.de>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-04-20 12:35:12 +02:00
..
mgmt ksmbd: Fix resource leak in ksmbd_session_rpc_open() 2022-12-31 13:32:42 +01:00
asn1.c ksmbd: use oid registry functions to decode OIDs 2021-12-28 22:47:22 -06:00
asn1.h
auth.c ksmbd: fix wrong signingkey creation when encryption is AES256 2023-03-30 12:49:26 +02:00
auth.h ksmbd: fix encryption failure issue for session logoff response 2022-10-05 01:15:44 -05:00
connection.c ksmbd: do not call kvmalloc() with __GFP_NORETRY | __GFP_NO_WARN 2023-04-13 16:55:29 +02:00
connection.h ksmbd: don't terminate inactive sessions after a few seconds 2023-03-30 12:49:26 +02:00
crypto_ctx.c ksmbd: remove NTLMv1 authentication 2021-09-29 16:17:34 -05:00
crypto_ctx.h ksmbd: remove NTLMv1 authentication 2021-09-29 16:17:34 -05:00
glob.h ksmbd: fix version mismatch with out of tree 2021-10-07 10:18:34 -05:00
Kconfig ksmbd: remove md4 leftovers 2021-11-11 19:22:58 -06:00
ksmbd_netlink.h ksmbd: add max connections parameter 2023-02-01 08:34:37 +01:00
ksmbd_spnego_negtokeninit.asn1
ksmbd_spnego_negtokentarg.asn1
ksmbd_work.c ksmbd: Remove redundant 'flush_workqueue()' calls 2021-11-06 23:52:06 -05:00
ksmbd_work.h ksmbd: remove smb2_buf_length in smb2_hdr 2021-11-11 19:22:58 -06:00
Makefile
misc.c ksmbd: validate share name from share config response 2022-10-05 01:15:44 -05:00
misc.h ksmbd: validate share name from share config response 2022-10-05 01:15:44 -05:00
ndr.c ksmbd: downgrade ndr version error message to debug 2023-02-01 08:34:38 +01:00
ndr.h ksmbd: add user namespace support 2021-07-02 16:27:10 +09:00
nterr.h
ntlmssp.h treewide: Replace zero-length arrays with flexible-array members 2022-02-17 07:00:39 -06:00
oplock.c ksmbd: set file permission mode to match Samba server posix extension behavior 2022-10-05 01:15:44 -05:00
oplock.h ksmbd: remove filename in ksmbd_file 2022-04-14 20:56:13 -05:00
server.c ksmbd: fix slab-out-of-bounds in init_smb2_rsp_hdr 2023-04-13 16:55:29 +02:00
server.h ksmbd: add max connections parameter 2023-02-01 08:34:37 +01:00
smb2misc.c ksmbd: do not allow the actual frame length to be smaller than the rfc1002 length 2023-03-10 09:34:07 +01:00
smb2ops.c ksmbd: add support for smb2 max credit parameter 2022-01-10 12:44:19 -06:00
smb2pdu.c ksmbd: avoid out of bounds access in decode_preauth_ctxt() 2023-04-20 12:35:12 +02:00
smb2pdu.h ksmbd: limit pdu length size according to connection status 2023-02-01 08:34:38 +01:00
smb_common.c ksmbd: fix slab-out-of-bounds in init_smb2_rsp_hdr 2023-04-13 16:55:29 +02:00
smb_common.h ksmbd: fix slab-out-of-bounds in init_smb2_rsp_hdr 2023-04-13 16:55:29 +02:00
smbacl.c ksmbd: port to vfs{g,u}id_t and associated helpers 2022-10-05 01:15:37 -05:00
smbacl.h ksmbd: port to vfs{g,u}id_t and associated helpers 2022-10-05 01:15:37 -05:00
smbfsctl.h
smbstatus.h
transport_ipc.c ksmbd: add max connections parameter 2023-02-01 08:34:37 +01:00
transport_ipc.h ksmbd: throttle session setup failures to avoid dictionary attacks 2021-10-20 00:07:10 -05:00
transport_rdma.c ksmbd: don't terminate inactive sessions after a few seconds 2023-03-30 12:49:26 +02:00
transport_rdma.h ksmbd: fix wrong smbd max read/write size check 2022-05-21 15:01:43 -05:00
transport_tcp.c ksmbd: don't terminate inactive sessions after a few seconds 2023-03-30 12:49:26 +02:00
transport_tcp.h
unicode.c
unicode.h ksmbd: casefold utf-8 share names and fix ascii lowercase conversion 2022-10-05 01:15:37 -05:00
uniupr.h
vfs.c vfs: fix copy_file_range() averts filesystem freeze protection 2022-11-25 00:52:28 -05:00
vfs.h ksmbd: make utf-8 file name comparison work in __caseless_lookup() 2022-10-05 01:15:44 -05:00
vfs_cache.c ksmbd: fix possible memory leak in smb2_lock() 2023-03-10 09:34:07 +01:00
vfs_cache.h ksmbd: remove filename in ksmbd_file 2022-04-14 20:56:13 -05:00
xattr.h treewide: Replace zero-length arrays with flexible-array members 2022-02-17 07:00:39 -06:00