Namjae Jeon dc8289f912 ksmbd: fix slab-out-of-bounds in init_smb2_rsp_hdr ... When smb1 mount fails, KASAN detect slab-out-of-bounds in init_smb2_rsp_hdr like the following one. For smb1 negotiate(56bytes) , init_smb2_rsp_hdr() for smb2 is called. The issue occurs while handling smb1 negotiate as smb2 server operations. Add smb server operations for smb1 (get_cmd_val, init_rsp_hdr, allocate_rsp_buf, check_user_session) to handle smb1 negotiate so that smb2 server operation does not handle it. [ 411.400423] CIFS: VFS: Use of the less secure dialect vers=1.0 is not recommended unless required for access to very old servers [ 411.400452] CIFS: Attempting to mount \\192.168.45.139\homes [ 411.479312] ksmbd: init_smb2_rsp_hdr : 492 [ 411.479323] ================================================================== [ 411.479327] BUG: KASAN: slab-out-of-bounds in init_smb2_rsp_hdr+0x1e2/0x1f4 [ksmbd] [ 411.479369] Read of size 16 at addr ffff888488ed0734 by task kworker/14:1/199 [ 411.479379] CPU: 14 PID: 199 Comm: kworker/14:1 Tainted: G OE 6.1.21 #3 [ 411.479386] Hardware name: ASUSTeK COMPUTER INC. Z10PA-D8 Series/Z10PA-D8 Series, BIOS 3801 08/23/2019 [ 411.479390] Workqueue: ksmbd-io handle_ksmbd_work [ksmbd] [ 411.479425] Call Trace: [ 411.479428] <TASK> [ 411.479432] dump_stack_lvl+0x49/0x63 [ 411.479444] print_report+0x171/0x4a8 [ 411.479452] ? kasan_complete_mode_report_info+0x3c/0x200 [ 411.479463] ? init_smb2_rsp_hdr+0x1e2/0x1f4 [ksmbd] [ 411.479497] kasan_report+0xb4/0x130 [ 411.479503] ? init_smb2_rsp_hdr+0x1e2/0x1f4 [ksmbd] [ 411.479537] kasan_check_range+0x149/0x1e0 [ 411.479543] memcpy+0x24/0x70 [ 411.479550] init_smb2_rsp_hdr+0x1e2/0x1f4 [ksmbd] [ 411.479585] handle_ksmbd_work+0x109/0x760 [ksmbd] [ 411.479616] ? _raw_spin_unlock_irqrestore+0x50/0x50 [ 411.479624] ? smb3_encrypt_resp+0x340/0x340 [ksmbd] [ 411.479656] process_one_work+0x49c/0x790 [ 411.479667] worker_thread+0x2b1/0x6e0 [ 411.479674] ? process_one_work+0x790/0x790 [ 411.479680] kthread+0x177/0x1b0 [ 411.479686] ? kthread_complete_and_exit+0x30/0x30 [ 411.479692] ret_from_fork+0x22/0x30 [ 411.479702] </TASK> Fixes: 39b291b86b ("ksmbd: return unsupported error on smb1 mount") Cc: stable@vger.kernel.org Signed-off-by: Namjae Jeon <linkinjeon@kernel.org> Signed-off-by: Steve French <stfrench@microsoft.com>		2023-04-02 23:08:56 -05:00
..
mgmt	ksmbd: Implements sess->rpc_handle_list as xarray	2023-01-29 18:10:42 -06:00
asn1.c	ksmbd: Remove duplicated codes	2023-01-30 20:49:30 -06:00
asn1.h
auth.c	ksmbd: fix wrong signingkey creation when encryption is AES256	2023-03-22 16:32:50 -05:00
auth.h	ksmbd: fix encryption failure issue for session logoff response	2022-10-05 01:15:44 -05:00
connection.c	ksmbd: delete asynchronous work from list	2023-04-02 23:08:52 -05:00
connection.h	ksmbd: don't terminate inactive sessions after a few seconds	2023-03-22 16:38:33 -05:00
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: update Kconfig to note Kerberos support and fix indentation	2023-01-30 20:49:30 -06:00
ksmbd_netlink.h	ksmbd: add max connections parameter	2023-01-20 15:27:48 -06:00
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: delete asynchronous work from list	2023-04-02 23:08:52 -05:00
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	fs.idmapped.v6.3	2023-02-20 11:53:11 -08:00
ndr.h	fs: port i_{g,u}id_into_vfs{g,u}id() to mnt_idmap	2023-01-19 09:24:29 +01:00
nterr.h
ntlmssp.h	treewide: Replace zero-length arrays with flexible-array members	2022-02-17 07:00:39 -06:00
oplock.c	fs: port i_{g,u}id_into_vfs{g,u}id() to mnt_idmap	2023-01-19 09:24:29 +01:00
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	2023-04-02 23:08:56 -05:00
server.h	ksmbd: add max connections parameter	2023-01-20 15:27:48 -06:00
smb2misc.c	ksmbd: do not allow the actual frame length to be smaller than the rfc1002 length	2023-02-15 00:04:38 -06:00
smb2ops.c	smb3: Replace smb2pdu 1-element arrays with flex-arrays	2023-02-20 17:25:43 -06:00
smb2pdu.c	ksmbd: fix slab-out-of-bounds in init_smb2_rsp_hdr	2023-04-02 23:08:56 -05:00
smb2pdu.h	ksmbd: delete asynchronous work from list	2023-04-02 23:08:52 -05:00
smb_common.c	ksmbd: fix slab-out-of-bounds in init_smb2_rsp_hdr	2023-04-02 23:08:56 -05:00
smb_common.h	ksmbd: fix slab-out-of-bounds in init_smb2_rsp_hdr	2023-04-02 23:08:56 -05:00
smbacl.c	fs: port vfs{g,u}id helpers to mnt_idmap	2023-01-19 09:24:30 +01:00
smbacl.h	fs: port vfs{g,u}id helpers to mnt_idmap	2023-01-19 09:24:30 +01:00
smbfsctl.h
smbstatus.h
transport_ipc.c	ksmbd: add max connections parameter	2023-01-20 15:27:48 -06:00
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	2023-03-22 16:38:33 -05:00
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	2023-03-22 16:38:33 -05:00
transport_tcp.h
unicode.c	ksmbd: remove unused is_char_allowed function	2023-03-25 14:54:06 -05:00
unicode.h	ksmbd: casefold utf-8 share names and fix ascii lowercase conversion	2022-10-05 01:15:37 -05:00
uniupr.h
vfs_cache.c	ten smb3 server fixes, including three for stable	2023-02-22 14:17:27 -08:00
vfs_cache.h	ksmbd: remove filename in ksmbd_file	2022-04-14 20:56:13 -05:00
vfs.c	ten smb3 server fixes, including three for stable	2023-02-22 14:17:27 -08:00
vfs.h	fs: port ->permission() to pass mnt_idmap	2023-01-19 09:24:28 +01:00
xattr.h	treewide: Replace zero-length arrays with flexible-array members	2022-02-17 07:00:39 -06:00