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fix shell msh_exec memory over-bound.

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geniusgogo 2021-05-22 19:50:49 +08:00
parent 19de22f485
commit 6c01083502
1 changed files with 1 additions and 1 deletions
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2
components/finsh/msh.c
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@ -374,7 +374,7 @@ int msh_exec(char *cmd, rt_size_t length)
int cmd_ret; int cmd_ret;
/* strim the beginning of command */ /* strim the beginning of command */
while (*cmd == ' ' || *cmd == '\t') while ((length > 0) && (*cmd == ' ' || *cmd == '\t'))
{ {
cmd++; cmd++;
length--; length--;