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zipl_helper.device-mapper: Fix segmentation fault in an error path

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Fix segmentation fault when trying to process not supported dm-targets
Release allocated memory in error paths

Reviewed-by: Alexander Egorenkov <egorenar@linux.ibm.com>
Signed-off-by: Eduard Shishkin <edward6@linux.ibm.com>
Signed-off-by: Steffen Eiden <seiden@linux.ibm.com>
This commit is contained in:
Eduard Shishkin
2025-08-08 17:17:07 +02:00
committed by Steffen Eiden
parent e1692b7079
commit d6f7eff5b5
1 changed files with 5 additions and 0 deletions
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5
zipl/src/zipl_helper.device-mapper.c
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@@ -1045,6 +1045,8 @@ static int get_table(dev_t dev, struct util_list **table)
&start, &length, &type, &args) < 4) {
ERR("Unrecognized device-mapper table format for device '%s'\n",
devname);
free(type);
free(args);
goto out;
}
tops = find_target_ops(type);
@@ -1052,6 +1054,9 @@ static int get_table(dev_t dev, struct util_list **table)
ERR("Unsupported setup: Unsupported device-mapper "
"target type '%s' for device '%s'\n",
type, devname);
free(type);
free(args);
goto out;
}
data = tops->get_target_data(devname, args);
free(type);