| commit | 4eb55deb77b75c655ebf74d07410640678b68d61 | [log] [tgz] |
|---|---|---|
| author | Marek Behún <marek.behun@nic.cz> | Fri Sep 24 23:06:39 2021 +0200 |
| committer | Stefan Roese <sr@denx.de> | Fri Oct 01 11:07:13 2021 +0200 |
| tree | b382d08855827a61eb5eb53b670f9d4357801c17 | |
| parent | f7b7f7c6ccf602ed550e4dbbc07e3570b0106a9f [diff] |
tools: kwboot: Fix buffer overflow in kwboot_terminal() The `in` variable is set to -1 in kwboot_terminal() if stdin is not a tty. In this case we should not look whether -1 is set in fd_set, for it can lead to a buffer overflow, which can be reproduced with echo "xyz" | ./tools/kwboot -t /dev/ttyUSB0 Signed-off-by: Marek Behún <marek.behun@nic.cz> Reviewed-by: Stefan Roese <sr@denx.de>