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Filename Latest commit message Latest commit date
Arnd Bergmann 1a91649fd3 net: cxgb4: avoid memcpy beyond end of source buffer
Building with link-time-optimizations revealed that the cxgb4 driver does
a fixed-size memcpy() from a variable-length constant string into the
network interface name:

In function 'memcpy',
    inlined from 'cfg_queues_uld.constprop' at drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.c:335:2,
    inlined from 'cxgb4_register_uld.constprop' at drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.c:719:9:
include/linux/string.h:350:3: error: call to '__read_overflow2' declared with attribute error: detected read beyond size of object passed as 2nd parameter
   __read_overflow2();
   ^

I can see two equally workable solutions: either we use a strncpy() instead
of the memcpy() to stop at the end of the input, or we make the source buffer
fixed length as well. This implements the latter.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-02-02 19:32:05 -05:00
arch Merge branch 'work.whack-a-mole' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2018-01-31 19:18:12 -08:00
block
certs
crypto
Documentation Documentation updates for 4.16. New stuff includes refcount_t 2018-01-31 19:25:25 -08:00
drivers net: cxgb4: avoid memcpy beyond end of source buffer 2018-02-02 19:32:05 -05:00
firmware
fs Documentation updates for 4.16. New stuff includes refcount_t 2018-01-31 19:25:25 -08:00
include net: create skb_gso_validate_mac_len() 2018-02-01 09:36:03 -05:00
init
ipc
kernel Merge branch 'akpm' (patches from Andrew) 2018-01-31 18:46:22 -08:00
lib Documentation updates for 4.16. New stuff includes refcount_t 2018-01-31 19:25:25 -08:00
LICENSES
mm mm/swap.c: make functions and their kernel-doc agree 2018-01-31 17:18:40 -08:00
net cls_u32: add missing RCU annotation. 2018-02-02 19:25:03 -05:00
samples
scripts Documentation updates for 4.16. New stuff includes refcount_t 2018-01-31 19:25:25 -08:00
security
sound
tools Merge branch 'akpm' (patches from Andrew) 2018-01-31 18:46:22 -08:00
usr
virt
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README

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

This file was moved to Documentation/admin-guide/README.rst

Please notice that there are several guides for kernel developers and users.
These guides can be rendered in a number of formats, like HTML and PDF.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.

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.