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From: Zhen Lei <thunder.leizhen@huawei.com>
To: Peter Huewe <peterhuewe@gmx.de>,
	Jarkko Sakkinen <jarkko@kernel.org>,
	Jason Gunthorpe <jgg@ziepe.ca>,
	James Bottomley <James.Bottomley@HansenPartnership.com>,
	linux-integrity <linux-integrity@vger.kernel.org>,
	linux-kernel <linux-kernel@vger.kernel.org>
Cc: Zhen Lei <thunder.leizhen@huawei.com>
Subject: [PATCH 1/1] tpm: fix error return code in tpm2_get_cc_attrs_tbl()
Date: Sat, 8 May 2021 10:54:44 +0800	[thread overview]
Message-ID: <20210508025444.1977-1-thunder.leizhen@huawei.com> (raw)

Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.

Fixes: 58472f5cd4f6("tpm: validate TPM 2.0 commands")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
---
 drivers/char/tpm/tpm2-cmd.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/char/tpm/tpm2-cmd.c b/drivers/char/tpm/tpm2-cmd.c
index eff1f12d981a..c84d23951219 100644
--- a/drivers/char/tpm/tpm2-cmd.c
+++ b/drivers/char/tpm/tpm2-cmd.c
@@ -656,6 +656,7 @@ int tpm2_get_cc_attrs_tbl(struct tpm_chip *chip)
 
 	if (nr_commands !=
 	    be32_to_cpup((__be32 *)&buf.data[TPM_HEADER_SIZE + 5])) {
+		rc = -EFAULT;
 		tpm_buf_destroy(&buf);
 		goto out;
 	}
-- 
2.25.1



             reply	other threads:[~2021-05-08  2:55 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-08  2:54 Zhen Lei [this message]
2021-05-09 20:41 ` [PATCH 1/1] tpm: fix error return code in tpm2_get_cc_attrs_tbl() Jarkko Sakkinen
2021-05-12  1:12   ` Leizhen (ThunderTown)
2021-05-12  1:21     ` Jarkko Sakkinen

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