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Prateek Sood 9b6caf4ccb firmware_loader: fix memory leak for paged buffer 
commit 4965b8cd1bc1ffb017e5c58e622da82b55e49414 upstream.

vfree() is being called on paged buffer allocated
using alloc_page() and mapped using vmap().

Freeing of pages in vfree() relies on nr_pages of
struct vm_struct. vmap() does not update nr_pages.
It can lead to memory leaks.

Fixes: ddaf29fd9bb6 ("firmware: Free temporary page table after vmapping")
Signed-off-by: Prateek Sood <prsood@codeaurora.org>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/1597957070-27185-1-git-send-email-prsood@codeaurora.org
Cc: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-23 12:40:34 +02:00
..
firmware_loader
firmware_loader: fix memory leak for paged buffer
2020-09-23 12:40:34 +02:00
power
PM: sleep: core: Fix the handling of pending runtime resume requests
2020-09-03 11:27:05 +02:00
regmap
regmap: debugfs: check count when read regmap file
2020-07-31 18:39:32 +02:00
test
driver core: Fix test_async_driver_probe if NUMA is disabled
2020-02-01 09:34:36 +00:00
arch_topology.c
Power management updates for 5.4-rc1
2019-09-17 19:15:14 -07:00
attribute_container.c
driver core: Remove redundant license text
2017-12-07 18:36:44 +01:00
base.h
driver/core: Convert to use built-in RCU list checking
2019-08-13 14:28:47 -07:00
bus.c
drivers: Introduce device lookup variants by name
2019-07-30 13:07:41 +02:00
cacheinfo.c
Driver Core and debugfs changes for 5.3-rc1
2019-07-12 12:24:03 -07:00
class.c
driver core: move device->knode_class to device_private
2019-01-18 16:55:48 +01:00
component.c
component: Silence bind error on -EPROBE_DEFER
2020-05-27 17:46:31 +02:00
container.c
driver core: Remove redundant license text
2017-12-07 18:36:44 +01:00
core.c
device property: Fix the secondary firmware node handling in set_primary_fwnode()
2020-09-03 11:27:05 +02:00
cpu.c
x86/speculation: Add Special Register Buffer Data Sampling (SRBDS) mitigation
2020-06-10 20:24:57 +02:00
dd.c
driver core: Avoid binding drivers to dead devices
2020-08-21 13:05:26 +02:00
devcon.c
Merge generic_lookup_helpers into usb-next
2019-09-03 17:11:07 +02:00
devcoredump.c
devcoredump: fix typo in comment
2019-08-15 17:38:11 +02:00
devres.c
drivers/base/devres: introduce devm_release_action()
2019-06-13 17:34:56 -10:00
devtmpfs.c
vfs: Convert ramfs, shmem, tmpfs, devtmpfs, rootfs to use the new mount API
2019-09-12 21:05:34 -04:00
driver.c
driver_find_device: Unify the match function with class_find_device()
2019-06-24 05:22:31 +02:00
firmware.c
driver core: Remove redundant license text
2017-12-07 18:36:44 +01:00
hypervisor.c
driver core: Remove redundant license text
2017-12-07 18:36:44 +01:00
init.c
base: fix order of OF initialization
2018-07-07 17:54:29 +02:00
isa.c
Merge 4.15-rc3 into driver-core-next
2017-12-11 08:50:05 +01:00
Kconfig
base: arch_topology: update Kconfig help description
2019-07-22 09:36:44 -07:00
Makefile
drivers: base: Introducing software nodes to the firmware node framework
2018-11-26 18:19:11 +01:00
map.c
driver core: Remove redundant license text
2017-12-07 18:36:44 +01:00
memory.c
drivers/base/memory.c: indicate all memory blocks as removable
2020-04-01 11:02:02 +02:00
module.c
driver core: Remove redundant license text
2017-12-07 18:36:44 +01:00
node.c
mm,thp: stats for file backed THP
2019-09-24 15:54:11 -07:00
pinctrl.c
driver core: Remove redundant license text
2017-12-07 18:36:44 +01:00
platform-msi.c
platform-msi: Free descriptors in platform_msi_domain_free()
2018-12-13 09:35:31 +00:00
platform.c
drivers: base: Fix NULL pointer exception in __platform_driver_probe() if a driver developer is foolish
2020-06-24 17:50:24 +02:00
property.c
device property: Introduce fwnode_find_reference()
2019-06-03 10:55:38 +02:00
soc.c
base: soc: Export soc_device_register/unregister APIs
2019-08-05 14:56:31 -07:00
swnode.c
Revert "software node: Simplify software_node_release() function"
2020-05-10 10:31:30 +02:00
syscore.c
treewide: Switch printk users from %pf and %pF to %ps and %pS, respectively
2019-04-09 14:19:06 +02:00
topology.c
topology: Create core_cpus and die_cpus sysfs attributes
2019-05-23 10:08:34 +02:00
transport_class.c
driver core: Remove redundant license text
2017-12-07 18:36:44 +01:00