Commit 6b641900 authored by Alan's avatar Alan Committed by Jiri Kosina

mkregtable: Fix sscanf handling

If you feed the tool a suitable bogus register map you can break it
in arbitary (code executing) ways. While this isn't a particularly
exciting or probable attack vector we still ought to fix it.

One of a set of sscanf issues reported by Jackie Chang
Signed-off-by: default avatarAlan Cox <alan@linux.intel.com>
Signed-off-by: default avatarJiri Kosina <jkosina@suse.cz>
parent bfb18d82
......@@ -655,7 +655,7 @@ static int parser_auth(struct table *t, const char *filename)
/* first line will contain the last register
* and gpu name */
sscanf(buf, "%s %s", gpu_name, last_reg_s);
sscanf(buf, "%9s %9s", gpu_name, last_reg_s);
t->gpu_prefix = gpu_name;
last_reg = strtol(last_reg_s, NULL, 16);
......
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