diff options
| author | Namjae Jeon <linkinjeon@kernel.org> | 2023-05-31 17:59:32 +0900 |
|---|---|---|
| committer | Steve French <stfrench@microsoft.com> | 2023-06-02 12:30:57 -0500 |
| commit | 1c1bcf2d3ea061613119b534f57507c377df20f9 (patch) | |
| tree | be0283cdbb85d670215e0d1c8236efa8a48d5364 /fs/stack.c | |
| parent | 368ba06881c395f1c9a7ba22203cf8d78b4addc0 (diff) | |
ksmbd: validate smb request protocol id
This patch add the validation for smb request protocol id.
If it is not one of the four ids(SMB1_PROTO_NUMBER, SMB2_PROTO_NUMBER,
SMB2_TRANSFORM_PROTO_NUM, SMB2_COMPRESSION_TRANSFORM_ID), don't allow
processing the request. And this will fix the following KASAN warning
also.
[ 13.905265] BUG: KASAN: slab-out-of-bounds in init_smb2_rsp_hdr+0x1b9/0x1f0
[ 13.905900] Read of size 16 at addr ffff888005fd2f34 by task kworker/0:2/44
...
[ 13.908553] Call Trace:
[ 13.908793] <TASK>
[ 13.908995] dump_stack_lvl+0x33/0x50
[ 13.909369] print_report+0xcc/0x620
[ 13.910870] kasan_report+0xae/0xe0
[ 13.911519] kasan_check_range+0x35/0x1b0
[ 13.911796] init_smb2_rsp_hdr+0x1b9/0x1f0
[ 13.912492] handle_ksmbd_work+0xe5/0x820
Cc: stable@vger.kernel.org
Reported-by: Chih-Yen Chang <cc85nod@gmail.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'fs/stack.c')
0 files changed, 0 insertions, 0 deletions