Thomas Richter 77d17d0e89 perf record: Fix failed memory allocation for get_cpuid_str ...

[ Upstream commit 81fccd6ca5 ]

In x86 architecture dependend part function get_cpuid_str() mallocs a
128 byte buffer, but does not check if the memory allocation succeeded
or not.

When the memory allocation fails, function __get_cpuid() is called with
first parameter being a NULL pointer.  However this function references
its first parameter and operates on a NULL pointer which might cause
core dumps.

Signed-off-by: Thomas Richter <tmricht@linux.vnet.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Link: http://lkml.kernel.org/r/20180117131611.34319-1-tmricht@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2018-04-26 11:02:06 +02:00

..

accounting

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

arch

tools/headers: Synchronize kernel ABI headers

2017-11-04 09:27:46 +01:00

build

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

cgroup

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

firewire

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

gpio

tools/gpio: Fix build error with musl libc

2018-02-03 17:38:47 +01:00

hv

hv: kvp: Avoid reading past allocated blocks from KVP file

2017-12-14 09:52:50 +01:00

iio

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

include

kmemcheck: rip it out for real

2018-02-22 15:42:24 +01:00

kvm/kvm_stat

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

laptop

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

leds

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

lib

tools lib traceevent: Fix get_field_str() for dynamic strings

2018-04-26 11:02:06 +02:00

net

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

nfsd

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

objtool

objtool: Add Clang support

2018-04-12 12:32:21 +02:00

pci

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

pcmcia

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

perf

perf record: Fix failed memory allocation for get_cpuid_str

2018-04-26 11:02:06 +02:00

power

cpupower : Fix cpupower working when cpu0 is offline

2018-02-03 17:38:55 +01:00

scripts

Merge tag 'spdx_identifiers-4.14-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

2017-11-02 10:04:46 -07:00

spi

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

testing

selftest: ftrace: Fix to pick text symbols for kprobes

2018-04-26 11:02:04 +02:00

thermal/tmon

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

time

…

usb

tools/usbip: fixes build with musl libc toolchain

2018-03-19 08:42:53 +01:00

virtio

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

vm

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

Makefile

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00