From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, James Smart <jsmart2021@gmail.com>,
Dan Carpenter <dan.carpenter@oracle.com>,
"Martin K. Petersen" <martin.petersen@oracle.com>,
Sasha Levin <sashal@kernel.org>
Subject: [PATCH 4.14 06/19] scsi: lpfc: Terminate string in lpfc_debugfs_nvmeio_trc_write()
Date: Mon, 3 Jan 2022 15:21:23 +0100 [thread overview]
Message-ID: <20220103142052.270392937@linuxfoundation.org> (raw)
In-Reply-To: <20220103142052.068378906@linuxfoundation.org>
From: Dan Carpenter <dan.carpenter@oracle.com>
[ Upstream commit 9020be114a47bf7ff33e179b3bb0016b91a098e6 ]
The "mybuf" string comes from the user, so we need to ensure that it is NUL
terminated.
Link: https://lore.kernel.org/r/20211214070527.GA27934@kili
Fixes: bd2cdd5e400f ("scsi: lpfc: NVME Initiator: Add debugfs support")
Reviewed-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/scsi/lpfc/lpfc_debugfs.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/scsi/lpfc/lpfc_debugfs.c b/drivers/scsi/lpfc/lpfc_debugfs.c
index c77ad2b78ce49..39a1c9e18c0ea 100644
--- a/drivers/scsi/lpfc/lpfc_debugfs.c
+++ b/drivers/scsi/lpfc/lpfc_debugfs.c
@@ -2177,8 +2177,8 @@ lpfc_debugfs_nvmeio_trc_write(struct file *file, const char __user *buf,
char mybuf[64];
char *pbuf;
- if (nbytes > 64)
- nbytes = 64;
+ if (nbytes > 63)
+ nbytes = 63;
memset(mybuf, 0, sizeof(mybuf));
--
2.34.1
next prev parent reply other threads:[~2022-01-03 14:24 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-03 14:21 [PATCH 4.14 00/19] 4.14.261-rc1 review Greg Kroah-Hartman
2022-01-03 14:21 ` [PATCH 4.14 01/19] HID: asus: Add depends on USB_HID to HID_ASUS Kconfig option Greg Kroah-Hartman
2022-01-03 14:21 ` [PATCH 4.14 02/19] tee: handle lookup of shm with reference count 0 Greg Kroah-Hartman
2022-01-03 14:21 ` [PATCH 4.14 03/19] platform/x86: apple-gmux: use resource_size() with res Greg Kroah-Hartman
2022-01-03 14:21 ` [PATCH 4.14 04/19] recordmcount.pl: fix typo in s390 mcount regex Greg Kroah-Hartman
2022-01-03 14:21 ` [PATCH 4.14 05/19] selinux: initialize proto variable in selinux_ip_postroute_compat() Greg Kroah-Hartman
2022-01-03 14:21 ` Greg Kroah-Hartman [this message]
2022-01-03 14:21 ` [PATCH 4.14 07/19] net: usb: pegasus: Do not drop long Ethernet frames Greg Kroah-Hartman
2022-01-03 14:21 ` [PATCH 4.14 08/19] NFC: st21nfca: Fix memory leak in device probe and remove Greg Kroah-Hartman
2022-01-03 14:21 ` [PATCH 4.14 09/19] fsl/fman: Fix missing put_device() call in fman_port_probe Greg Kroah-Hartman
2022-01-03 14:21 ` [PATCH 4.14 10/19] nfc: uapi: use kernel size_t to fix user-space builds Greg Kroah-Hartman
2022-01-03 14:21 ` [PATCH 4.14 11/19] uapi: fix linux/nfc.h userspace compilation errors Greg Kroah-Hartman
2022-01-03 14:21 ` [PATCH 4.14 12/19] xhci: Fresco FL1100 controller should not have BROKEN_MSI quirk set Greg Kroah-Hartman
2022-01-03 14:21 ` [PATCH 4.14 13/19] usb: gadget: f_fs: Clear ffs_eventfd in ffs_data_clear Greg Kroah-Hartman
2022-01-03 14:21 ` [PATCH 4.14 14/19] binder: fix async_free_space accounting for empty parcels Greg Kroah-Hartman
2022-01-03 14:21 ` [PATCH 4.14 15/19] scsi: vmw_pvscsi: Set residual data length conditionally Greg Kroah-Hartman
2022-01-03 14:21 ` [PATCH 4.14 16/19] Input: appletouch - initialize work before device registration Greg Kroah-Hartman
2022-01-03 14:21 ` [PATCH 4.14 17/19] Input: spaceball - fix parsing of movement data packets Greg Kroah-Hartman
2022-01-03 14:21 ` [PATCH 4.14 18/19] net: fix use-after-free in tw_timer_handler Greg Kroah-Hartman
2022-01-03 14:21 ` [PATCH 4.14 19/19] sctp: use call_rcu to free endpoint Greg Kroah-Hartman
2022-01-04 1:24 ` [PATCH 4.14 00/19] 4.14.261-rc1 review Guenter Roeck
2022-01-04 9:53 ` Jon Hunter
2022-01-04 13:39 ` Naresh Kamboju
2022-01-05 2:19 ` Shuah Khan
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