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Check all snprintf calls for returning values.

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This commit is contained in:
Milan Broz
2022-02-24 15:03:21 +01:00
parent c27d6a89bb
commit 677e06c48a
12 changed files with 79 additions and 40 deletions
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11
lib/tcrypt/tcrypt.c
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@@ -827,7 +827,10 @@ int TCRYPT_activate(struct crypt_device *cd,
strncpy(dm_name, name, sizeof(dm_name)-1);
dmd.flags = flags;
} else {
snprintf(dm_name, sizeof(dm_name), "%s_%d", name, i-1);
if (snprintf(dm_name, sizeof(dm_name), "%s_%d", name, i-1) < 0) {
r = -EINVAL;
break;
}
dmd.flags = flags | CRYPT_ACTIVATE_PRIVATE;
}
@@ -835,8 +838,10 @@ int TCRYPT_activate(struct crypt_device *cd,
vk->key, hdr->d.keys);
if (algs->chain_count != i) {
snprintf(dm_dev_name, sizeof(dm_dev_name), "%s/%s_%d",
dm_get_dir(), name, i);
if (snprintf(dm_dev_name, sizeof(dm_dev_name), "%s/%s_%d", dm_get_dir(), name, i) < 0) {
r = -EINVAL;
break;
}
r = device_alloc(cd, &device, dm_dev_name);
if (r)
break;