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alistair23-linux/drivers/base
Prateek Sood 9b6caf4ccb firmware_loader: fix memory leak for paged buffer
commit 4965b8cd1b 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: ddaf29fd9b ("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
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
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
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