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Filename Latest commit message Latest commit date
Pavel Skripkin 19f88ca68c net: ethernet: fix potential use-after-free in ec_bhf_remove
[ Upstream commit 9cca0c2d70149160407bda9a9446ce0c29b6e6c6 ]

static void ec_bhf_remove(struct pci_dev *dev)
{
...
	struct ec_bhf_priv *priv = netdev_priv(net_dev);

	unregister_netdev(net_dev);
	free_netdev(net_dev);

	pci_iounmap(dev, priv->dma_io);
	pci_iounmap(dev, priv->io);
...
}

priv is netdev private data, but it is used
after free_netdev(). It can cause use-after-free when accessing priv
pointer. So, fix it by moving free_netdev() after pci_iounmap()
calls.

Fixes: 6af55ff52b ("Driver for Beckhoff CX5020 EtherCAT master module.")
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-06-23 14:41:27 +02:00
arch kvm: LAPIC: Restore guard to prevent illegal APIC register access 2021-06-23 14:41:23 +02:00
block
certs
crypto
Documentation
drivers net: ethernet: fix potential use-after-free in ec_bhf_remove 2021-06-23 14:41:27 +02:00
fs afs: Fix an IS_ERR() vs NULL check 2021-06-23 14:41:23 +02:00
include icmp: don't send out ICMP messages with a source address of 0.0.0.0 2021-06-23 14:41:27 +02:00
init
ipc
kernel tracing: Correct the length check which causes memory corruption 2021-06-16 11:59:46 +02:00
lib
LICENSES
mm mm/memory-failure: make sure wait for page writeback in memory_failure 2021-06-23 14:41:23 +02:00
net icmp: don't send out ICMP messages with a source address of 0.0.0.0 2021-06-23 14:41:27 +02:00
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Makefile Linux 5.4.127 2021-06-18 09:59:00 +02:00
README

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.