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From: Florian Fainelli <f.fainelli@gmail.com>
To: netdev@vger.kernel.org
Cc: david.laight@aculab.com, Florian Fainelli <f.fainelli@gmail.com>,
	Andrew Lunn <andrew@lunn.ch>,
	Vivien Didelot <vivien.didelot@savoirfairelinux.com>,
	linux-kernel@vger.kernel.org (open list),
	opendmb@gmail.com, davem@davemloft.net
Subject: [PATCH v2 0/4] net: Use strlcpy() for ethtool::get_strings
Date: Fri,  2 Mar 2018 15:08:35 -0800	[thread overview]
Message-ID: <20180302230839.31468-1-f.fainelli@gmail.com> (raw)

Hi all,

After turning on KASAN on one of my systems, I started getting lots of out of
bounds errors while fetching a given port's statistics, and indeed using
memcpy() is unsafe for copying strings which have not been declared as an array
of ETH_GSTRING_LEN bytes, so let's use strlcpy() instead. This allows the best
of both worlds: we still keep the efficient memory usage of variably sized
strings, but we don't copy more than we need to.

Changes in v2:
- dropped the 3 other patches that were not necessary
- use strlcpy() instead of strncpy()

Florian Fainelli (4):
  net: dsa: b53: Use strlcpy() for ethtool::get_strings
  net: phy: marvell: Use strlcpy() for ethtool::get_strings
  net: phy: micrel: Use strlcpy() for ethtool::get_strings
  net: phy: broadcom: Use strlcpy() for ethtool::get_strings

 drivers/net/dsa/b53/b53_common.c | 4 ++--
 drivers/net/phy/bcm-phy-lib.c    | 4 ++--
 drivers/net/phy/marvell.c        | 4 ++--
 drivers/net/phy/micrel.c         | 4 ++--
 4 files changed, 8 insertions(+), 8 deletions(-)

-- 
2.14.1

             reply	other threads:[~2018-03-02 23:08 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-03-02 23:08 Florian Fainelli [this message]
2018-03-02 23:08 ` [PATCH v2 1/4] net: dsa: b53: Use strlcpy() for ethtool::get_strings Florian Fainelli
2018-03-02 23:08 ` [PATCH v2 2/4] net: phy: marvell: " Florian Fainelli
2018-03-02 23:08 ` [PATCH v2 3/4] net: phy: micrel: " Florian Fainelli
2018-03-02 23:08 ` [PATCH v2 4/4] net: phy: broadcom: " Florian Fainelli
2018-03-04 15:40 ` [PATCH v2 0/4] net: " Andrew Lunn
2018-03-06 16:13 ` David Miller

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