[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Message-Id: <20240620034533.569099-1-nichen@iscas.ac.cn>
Date: Thu, 20 Jun 2024 11:45:33 +0800
From: Chen Ni <nichen@...as.ac.cn>
To: richard@....at,
chengzhihao1@...wei.com,
ebiggers@...gle.com,
herbert@...dor.apana.org.au
Cc: linux-mtd@...ts.infradead.org,
linux-kernel@...r.kernel.org,
Chen Ni <nichen@...as.ac.cn>
Subject: [PATCH] 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: f80df3851246 ("ubifs: use crypto_shash_tfm_digest()")
Signed-off-by: Chen Ni <nichen@...as.ac.cn>
---
fs/ubifs/master.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
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;
--
2.25.1
Powered by blists - more mailing lists