[flashrom] [PATCH] Fix out-of-bounds access if all erase functions fail
Carl-Daniel Hailfinger
c-d.hailfinger.devel.2006 at gmx.net
Fri Apr 15 07:31:29 CEST 2011
Fix out-of-bounds access if all erase functions fail.
Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006 at gmx.net>
Index: flashrom-fix_erasefunctions_nullpointer/flashrom.c
===================================================================
--- flashrom-fix_erasefunctions_nullpointer/flashrom.c (Revision 1280)
+++ flashrom-fix_erasefunctions_nullpointer/flashrom.c (Arbeitskopie)
@@ -1514,8 +1514,12 @@
memcpy(curcontents, oldcontents, size);
for (k = 0; k< NUM_ERASEFUNCTIONS; k++) {
+ if (!usable_erasefunctions) {
+ msg_cdbg("No usable erase functions left.\n");
+ break;
+ }
msg_cdbg("Looking at blockwise erase function %i... ", k);
- if (check_block_eraser(flash, k, 1)&& usable_erasefunctions) {
+ if (check_block_eraser(flash, k, 1)) {
msg_cdbg("Looking for another erase function.\n");
continue;
}
--
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