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Linus Torvalds 6f957724b9 Fix firmware loader uevent buffer NULL pointer dereference 
The firmware class uevent function accessed the "fw_priv->buf" buffer
without the proper locking and testing for NULL.  This is an old bug
(looks like it goes back to 2012 and commit 1244691c73b2: "firmware
loader: introduce firmware_buf"), but for some reason it's triggering
only now in 4.2-rc1.

Shuah Khan is trying to bisect what it is that causes this to trigger
more easily, but in the meantime let's just fix the bug since others are
hitting it too (at least Ingo reports having seen it as well).

Reported-and-tested-by: Shuah Khan <shuahkh@osg.samsung.com>
Acked-by: Ming Lei <ming.lei@canonical.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 		2015-07-09 11:20:01 -07:00
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accessibility
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acpi Merge branch 'acpi-scan' 2015-07-07 22:48:25 +02:00
amba
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android
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ata ata: ahci_platform: Add ACPI _CLS matching 2015-07-07 01:55:21 +02:00
atm
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auxdisplay
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base Fix firmware loader uevent buffer NULL pointer dereference 2015-07-09 11:20:01 -07:00
bcma
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block Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2015-07-04 19:36:06 -07:00
bluetooth Bluetooth: ath3k: Add support of 04ca:300d AR3012 device 2015-06-18 21:00:06 +03:00
bus ARM: SoC: driver updates for v4.2 2015-06-26 11:54:29 -07:00
cdrom
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char Merge tag 'drm-intel-next-fixes-2015-07-02' of git://anongit.freedesktop.org/drm-intel 2015-07-02 14:36:40 -07:00
clk Replace module_platform_driver with builtin_platform driver in non modules. 2015-07-02 10:42:13 -07:00
clocksource Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2015-07-01 15:44:18 -07:00
connector
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cpufreq Replace module_platform_driver with builtin_platform driver in non modules. 2015-07-02 10:42:13 -07:00
cpuidle Replace module_platform_driver with builtin_platform driver in non modules. 2015-07-02 10:42:13 -07:00
crypto crypto: marvell/cesa - another fix up for of_get_named_gen_pool() rename 2015-07-03 11:37:02 -07:00
dca
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devfreq
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dio
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dma Merge branch 'akpm' (patches from Andrew) 2015-07-01 17:47:51 -07:00
dma-buf
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edac A build fix for octeon_edac from Aaro Koskinen. 2015-07-03 12:10:12 -07:00
eisa
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extcon
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firewire
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firmware Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2015-07-03 15:20:57 -07:00
fmc
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gpio Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2015-07-01 15:19:35 -07:00
gpu Merge tag 'topic/drm-fixes-2015-07-04' of git://anongit.freedesktop.org/drm-intel 2015-07-03 16:09:29 -07:00
hid Merge branches 'for-4.2/i2c-hid', 'for-4.2/lenovo', 'for-4.2/plantronics', 'for-4.2/rmi', 'for-4.2/sensor-hub', 'for-4.2/sjoy', 'for-4.2/sony' and 'for-4.2/wacom' into for-linus 2015-06-22 16:23:43 +02:00
hsi Fix up implicit <module.h> users that will break later. 2015-07-02 10:25:22 -07:00
hv
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hwmon hwmon: (w83627ehf) Use swap() in w82627ehf_swap_tempreg() 2015-07-03 14:39:06 +02:00
hwspinlock hwspinlock: qcom: Correct msb in regmap_field 2015-07-01 16:15:05 +03:00
hwtracing/coresight
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i2c Char/Misc driver patches for 4.2-rc1 2015-06-26 14:51:15 -07:00
ide Minor merge needed, due to function move. 2015-07-01 10:49:25 -07:00
idle
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iio
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infiniband Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2015-07-04 19:36:06 -07:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2015-07-04 08:14:22 -07:00
iommu IOMMU Fixes for Linux v4.2-rc0 2015-07-01 14:44:22 -07:00
ipack
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irqchip Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2015-07-04 09:22:51 -07:00
isdn Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2015-06-24 16:49:49 -07:00
leds Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds 2015-07-01 19:09:11 -07:00
lguest Merge branch 'x86-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2015-06-22 17:59:09 -07:00
macintosh
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mailbox Replace module_init with appropriate alternate initcall in non modules. 2015-07-02 10:36:29 -07:00
mcb
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md Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2015-07-04 19:36:06 -07:00
media Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds 2015-07-01 19:09:11 -07:00
memory ARM: SoC: driver updates for v4.2 2015-06-26 11:54:29 -07:00
memstick memstick: remove deprecated use of pci api 2015-06-30 19:44:57 -07:00
message
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mfd Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2015-07-01 15:19:35 -07:00
misc mei: nfc: fix deadlock on shutdown/suspend path 2015-07-07 15:04:12 -07:00
mmc ARM: SoC: late fixes and dependencies 2015-07-02 14:40:49 -07:00
mtd Minor merge needed, due to function move. 2015-07-01 10:49:25 -07:00
net A very significant modification to NTB in this series. 2015-07-04 14:07:47 -07:00
nfc Char/Misc driver patches for 4.2-rc1 2015-06-26 14:51:15 -07:00
ntb NTB: Add split BAR output for debugfs stats 2015-07-04 14:09:32 -04:00
nubus
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nvdimm arch, x86: pmem api for ensuring durability of persistent memory updates 2015-06-26 11:23:38 -04:00
of Devicetree changes for v4.2 2015-07-01 19:40:18 -07:00
oprofile
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parisc
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parport
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pci Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2015-07-01 15:19:35 -07:00
pcmcia Fix up implicit <module.h> users that will break later. 2015-07-02 10:25:22 -07:00
phy Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2015-06-27 12:44:34 -07:00
pinctrl Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2015-07-01 15:19:35 -07:00
platform platform-drivers-x86 for 4.2-2 2015-07-05 10:54:09 -07:00
pnp ACPI / PNP: Reserve ACPI resources at the fs_initcall_sync stage 2015-07-06 23:52:21 +02:00
power Replace module_platform_driver with builtin_platform driver in non modules. 2015-07-02 10:42:13 -07:00
powercap
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pps
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ps3
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ptp
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pwm pwm: Changes for v4.2-rc1 2015-06-23 13:32:38 -07:00
rapidio Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2015-06-23 14:08:54 -07:00
ras
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regulator Fix up implicit <module.h> users that will break later. 2015-07-02 10:25:22 -07:00
remoteproc remoteproc: fix !CONFIG_OF build breakage 2015-06-18 11:44:41 +03:00
reset
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rpmsg
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rtc Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2015-06-27 12:44:34 -07:00
s390 KVM: s390: virtio-ccw: don't overwrite config space values 2015-07-03 18:55:18 +02:00
sbus
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scsi Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2015-07-04 14:13:43 -07:00
sfi
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sh Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2015-07-01 15:19:35 -07:00
sn
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soc ARM: SoC: late fixes and dependencies 2015-07-02 14:40:49 -07:00
spi Merge remote-tracking branches 'spi/topic/sirf', 'spi/topic/spidev' and 'spi/topic/zynq' into spi-next 2015-06-18 00:19:56 +01:00
spmi
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ssb
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staging Staging driver patches for 4.2-rc1 2015-06-26 15:46:08 -07:00
target Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2015-07-04 14:13:43 -07:00
tc
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thermal Minor merge needed, due to function move. 2015-07-01 10:49:25 -07:00
thunderbolt
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tty ARM: SoC: late fixes and dependencies 2015-07-02 14:40:49 -07:00
uio
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usb Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2015-07-04 19:36:06 -07:00
uwb
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vfio VFIO updates for v4.2 2015-06-28 12:32:13 -07:00
vhost Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2015-07-04 14:13:43 -07:00
video fbdev fixes for 4.2 2015-07-03 12:11:17 -07:00
virt
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virtio virtio/vhost: cross endian support 2015-07-03 16:02:25 -07:00
vlynq
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vme
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w1
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watchdog Merge git://www.linux-watchdog.org/linux-watchdog 2015-07-01 19:33:16 -07:00
xen Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2015-07-04 14:13:43 -07:00
zorro
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Kconfig libnvdimm, nfit: initial libnvdimm infrastructure and NFIT support 2015-06-24 21:24:10 -04:00
Makefile The libnvdimm sub-system introduces, in addition to the libnvdimm-core, 2015-06-29 10:34:42 -07:00