openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

USB: rndis: Fix for handling garbled messages 

A message can be forged to crash the stack; here we make sure we don't
completely break the system if this occurs

Signed-off-by: Michel Pollet <michel.pollet@bp.renesas.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
This commit is contained in:
Michel Pollet 2018-05-10 14:09:09 +01:00 committed by Felipe Balbi
parent 44feb8e6ea
commit 1ca532e991
1 changed files with 3 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/usb/gadget/function/rndis.c
View File

@ -851,6 +851,9 @@ int rndis_msg_parser(struct rndis_params *params, u8 *buf)
*/
pr_warn("%s: unknown RNDIS message 0x%08X len %d\n",
__func__, MsgType, MsgLength);
/* Garbled message can be huge, so limit what we display */
if (MsgLength > 16)
MsgLength = 16;
print_hex_dump_bytes(__func__, DUMP_PREFIX_OFFSET,
buf, MsgLength);
break;