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lib: check return value of malloc in BITLK_read_sb

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The return value of malloc vmk and params->fvek is not
checked. Here we add checking.

Signed-off-by: Lixiaokeng <lixiaokeng@huawei.com>
Signed-off-by: Linfeilong <linfeilong@huawei.com>
This commit is contained in:
lixiaokeng
2020-11-09 09:26:08 +08:00
parent 482fcd0602
commit 941b82a8be
1 changed files with 8 additions and 0 deletions
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8
lib/bitlk/bitlk.c
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@@ -674,6 +674,10 @@ int BITLK_read_sb(struct crypt_device *cd, struct bitlk_metadata *params)
sizeof(entry_vmk));
vmk = malloc(sizeof(struct bitlk_vmk));
if (!vmk) {
r = -ENOMEM;
goto out;
}
memset(vmk, 0, sizeof(struct bitlk_vmk));
guid_to_string(&entry_vmk.guid, guid_buf);
@@ -702,6 +706,10 @@ int BITLK_read_sb(struct crypt_device *cd, struct bitlk_metadata *params)
/* FVEK */
} else if (entry_type == BITLK_ENTRY_TYPE_FVEK) {
params->fvek = malloc(sizeof(struct bitlk_fvek));
if (!params->fvek) {
r = -ENOMEM;
goto out;
}
memcpy(params->fvek->nonce,
fve_entries + start + BITLK_ENTRY_HEADER_LEN,
sizeof(params->fvek->nonce));