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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	stable@vger.kernel.org, Ivan Bornyakov <brnkv.i1@gmail.com>,
	"David S. Miller" <davem@davemloft.net>,
	Sasha Levin <alexander.levin@microsoft.com>
Subject: [PATCH 3.18 06/23] atm: zatm: fix memcmp casting
Date: Tue, 10 Jul 2018 20:24:39 +0200	[thread overview]
Message-ID: <20180710182309.146798860@linuxfoundation.org> (raw)
In-Reply-To: <20180710182308.877332304@linuxfoundation.org>

3.18-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Ivan Bornyakov <brnkv.i1@gmail.com>

[ Upstream commit f9c6442a8f0b1dde9e755eb4ff6fa22bcce4eabc ]

memcmp() returns int, but eprom_try_esi() cast it to unsigned char. One
can lose significant bits and get 0 from non-0 value returned by the
memcmp().

Signed-off-by: Ivan Bornyakov <brnkv.i1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/atm/zatm.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/atm/zatm.c
+++ b/drivers/atm/zatm.c
@@ -1148,8 +1148,8 @@ static void eprom_get_byte(struct zatm_d
 }
 
 
-static unsigned char eprom_try_esi(struct atm_dev *dev, unsigned short cmd,
-				   int offset, int swap)
+static int eprom_try_esi(struct atm_dev *dev, unsigned short cmd, int offset,
+			 int swap)
 {
 	unsigned char buf[ZEPROM_SIZE];
 	struct zatm_dev *zatm_dev;



  parent reply	other threads:[~2018-07-10 18:26 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-07-10 18:24 [PATCH 3.18 00/23] 3.18.115-stable review Greg Kroah-Hartman
2018-07-10 18:24 ` [PATCH 3.18 01/23] n_tty: Fix stall at n_tty_receive_char_special() Greg Kroah-Hartman
2018-07-10 18:24 ` [PATCH 3.18 02/23] staging: android: ion: Return an ERR_PTR in ion_map_kernel Greg Kroah-Hartman
2018-07-10 18:24 ` [PATCH 3.18 03/23] x86/boot: Fix early command-line parsing when matching at end Greg Kroah-Hartman
2018-07-10 18:24 ` [PATCH 3.18 04/23] ubi: fastmap: Correctly handle interrupted erasures in EBA Greg Kroah-Hartman
2018-07-10 18:24 ` [PATCH 3.18 05/23] netfilter: ebtables: handle string from userspace with care Greg Kroah-Hartman
2018-07-10 18:24 ` Greg Kroah-Hartman [this message]
2018-07-10 18:24 ` [PATCH 3.18 07/23] net: qmi_wwan: Add Netgear Aircard 779S Greg Kroah-Hartman
2018-07-10 18:24 ` [PATCH 3.18 08/23] net/sonic: Use dma_mapping_error() Greg Kroah-Hartman
2018-07-10 18:24 ` [PATCH 3.18 09/23] scsi: sg: mitigate read/write abuse Greg Kroah-Hartman
2018-07-10 18:24 ` [PATCH 3.18 10/23] cifs: Fix infinite loop when using hard mount option Greg Kroah-Hartman
2018-07-10 18:24 ` [PATCH 3.18 11/23] ext4: make sure bitmaps and the inode table dont overlap with bg descriptors Greg Kroah-Hartman
2018-07-10 18:24 ` [PATCH 3.18 12/23] ext4: clear i_data in ext4_inode_info when removing inline data Greg Kroah-Hartman
2018-07-10 18:24 ` [PATCH 3.18 13/23] ext4: add more mount time checks of the superblock Greg Kroah-Hartman
2018-07-10 18:24 ` [PATCH 3.18 14/23] HID: i2c-hid: Fix "incomplete report" noise Greg Kroah-Hartman
2018-07-10 18:24 ` [PATCH 3.18 15/23] HID: debug: check length before copy_to_user() Greg Kroah-Hartman
2018-07-10 18:24 ` [PATCH 3.18 16/23] media: cx25840: Use subdev host data for PLL override Greg Kroah-Hartman
2018-07-10 18:24 ` [PATCH 3.18 17/23] dm bufio: avoid sleeping while holding the dm_bufio lock Greg Kroah-Hartman
2018-07-10 18:24 ` [PATCH 3.18 18/23] dm bufio: drop the lock when doing GFP_NOIO allocation Greg Kroah-Hartman
2018-07-10 18:24 ` [PATCH 3.18 19/23] mtd: rawnand: mxc: set spare area size register explicitly Greg Kroah-Hartman
2018-07-10 18:24 ` [PATCH 3.18 20/23] mtd: cfi_cmdset_0002: Change definition naming to retry write operation Greg Kroah-Hartman
2018-07-10 18:24 ` [PATCH 3.18 21/23] mtd: cfi_cmdset_0002: Change erase functions to retry for error Greg Kroah-Hartman
2018-07-10 18:24 ` [PATCH 3.18 22/23] mtd: cfi_cmdset_0002: Change erase functions to check chip good only Greg Kroah-Hartman
2018-07-10 18:24 ` [PATCH 3.18 23/23] netfilter: nf_log: dont hold nf_log_mutex during user access Greg Kroah-Hartman
2018-07-10 19:09 ` [PATCH 3.18 00/23] 3.18.115-stable review Nathan Chancellor
2018-07-10 20:19 ` Harsh 'Shandilya
2018-07-11 11:05   ` Greg Kroah-Hartman
2018-07-11 13:39 ` Guenter Roeck
2018-07-11 15:10 ` Shuah Khan

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