tree 867a1c772ddac1444ede4b609b1a500693204230
parent bb3e4e2381fac258a16b128064c6330920d4568c
author Angel Pons <th3fanbus@gmail.com> 1621940604 +0200
committer Nico Huber <nico.h@gmx.de> 1672935185 +0100

dummyflasher.c: Prevent use-after-free bug

The memory for the `status` string is aliased by the `endptr` pointer.
Moreover, `errno` could have been modified by the call to `free()`.
Therefore, only free the former when there are no more uses of either.

Change-Id: I1b56834004fe18918213a7df0a09a8a7ecb56985
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Original-Reviewed-on: https://review.coreboot.org/c/flashrom/+/54909
Original-Reviewed-by: Edward O'Callaghan <quasisec@chromium.org>
Original-Reviewed-by: Anastasia Klimchuk <aklm@chromium.org>