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zdev: Harden against invalid import data

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Reduce chances of unintended side-effects when importing device
configuration data which might have been corrupted.

Reviewed-by: Vineeth Vijayan <vneethv@linux.ibm.com>
Reviewed-by: Jan Höppner <hoeppner@linux.ibm.com>
Signed-off-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
This commit is contained in:
Peter Oberparleiter
2026-07-07 16:55:38 +02:00
committed by Jan Höppner
parent 360e8d4156
commit 5e93b53f78
1 changed files with 5 additions and 0 deletions
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5
zdev/src/export.c
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@@ -17,6 +17,7 @@
#include "device.h"
#include "devtype.h"
#include "export.h"
#include "sanitize.h"
#include "setting.h"
#include "subtype.h"
@@ -35,6 +36,8 @@ static bool header_str_to_config(const char *config_str, config_t *config)
if (strstr(config_str, "site")) {
if (sscanf(config_str, "site%d", &site) == 1) {
if (site < 0 || site >= NUM_USER_SITES)
return false;
import_site_id = site;
*config = config_persistent;
return true;
@@ -333,6 +336,8 @@ static bool parse_setting(const char *line, char **key_ptr, char **val_ptr)
value++;
*key_ptr = shrink_str(copy);
*val_ptr = unquote_str(value);
sanitize(*key_ptr, VALID_ATTRKEY);
sanitize(*val_ptr, VALID_ATTRVAL);
free(copy);
return true;