Commit b4f1b67b authored by Roel Kluin's avatar Roel Kluin Committed by Jason Wessel
Browse files

kgdbts: Read buffer overflow



Prevent write to put_buf[BUFMAX] in kgdb test suite.

If put_buf_cnt was BUFMAX - 1 at the earlier test,
`\0' is written to put_buf[BUFMAX].
Signed-off-by: default avatarRoel Kluin <roel.kluin@gmail.com>
Signed-off-by: default avatarJason Wessel <jason.wessel@windriver.com>
parent 84667d48
......@@ -712,6 +712,12 @@ static int run_simple_test(int is_get_char, int chr)
/* End of packet == #XX so look for the '#' */
if (put_buf_cnt > 3 && put_buf[put_buf_cnt - 3] == '#') {
if (put_buf_cnt >= BUFMAX) {
eprintk("kgdbts: ERROR: put buffer overflow on"
" '%s' line %i\n", ts.name, ts.idx);
put_buf_cnt = 0;
return 0;
}
put_buf[put_buf_cnt] = '\0';
v2printk("put%i: %s\n", ts.idx, put_buf);
/* Trigger check here */
......
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