diff options
| author | Chen Ni <nichen@iscas.ac.cn> | 2024-06-20 16:19:26 +0800 |
|---|---|---|
| committer | Richard Weinberger <richard@nod.at> | 2024-07-12 22:01:09 +0200 |
| commit | 054fd15984454f031611d6c63675fc578aad0cb1 (patch) | |
| tree | 5f53f1ccc86dad726bf69b0a463bbde9cf6a7dd5 /fs/ubifs | |
| parent | 25e79a7f2c9e54872fb2c8932bb582a500284505 (diff) | |
ubifs: add check for crypto_shash_tfm_digest
Add check for the return value of crypto_shash_tfm_digest() and return
the error if it fails in order to catch the error.
Fixes: 817aa094842d ("ubifs: support offline signed images")
Signed-off-by: Chen Ni <nichen@iscas.ac.cn>
Reviewed-by: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Diffstat (limited to 'fs/ubifs')
| -rw-r--r-- | fs/ubifs/master.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/ubifs/master.c b/fs/ubifs/master.c index 7adc37c10b6a..a148760fa49e 100644 --- a/fs/ubifs/master.c +++ b/fs/ubifs/master.c @@ -67,10 +67,13 @@ static int mst_node_check_hash(const struct ubifs_info *c, { u8 calc[UBIFS_MAX_HASH_LEN]; const void *node = mst; + int ret; - crypto_shash_tfm_digest(c->hash_tfm, node + sizeof(struct ubifs_ch), + ret = crypto_shash_tfm_digest(c->hash_tfm, node + sizeof(struct ubifs_ch), UBIFS_MST_NODE_SZ - sizeof(struct ubifs_ch), calc); + if (ret) + return ret; if (ubifs_check_hash(c, expected, calc)) return -EPERM; |