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3abea10e6a
linux/drivers/thermal
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Chuansheng Liu 3abea10e6a thermal: int340x: fix memory leak in int3400_notify() 
It is easy to hit the below memory leaks in my TigerLake platform:

unreferenced object 0xffff927c8b91dbc0 (size 32):
  comm "kworker/0:2", pid 112, jiffies 4294893323 (age 83.604s)
  hex dump (first 32 bytes):
    4e 41 4d 45 3d 49 4e 54 33 34 30 30 20 54 68 65  NAME=INT3400 The
    72 6d 61 6c 00 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b a5  rmal.kkkkkkkkkk.
  backtrace:
    [<ffffffff9c502c3e>] __kmalloc_track_caller+0x2fe/0x4a0
    [<ffffffff9c7b7c15>] kvasprintf+0x65/0xd0
    [<ffffffff9c7b7d6e>] kasprintf+0x4e/0x70
    [<ffffffffc04cb662>] int3400_notify+0x82/0x120 [int3400_thermal]
    [<ffffffff9c8b7358>] acpi_ev_notify_dispatch+0x54/0x71
    [<ffffffff9c88f1a7>] acpi_os_execute_deferred+0x17/0x30
    [<ffffffff9c2c2c0a>] process_one_work+0x21a/0x3f0
    [<ffffffff9c2c2e2a>] worker_thread+0x4a/0x3b0
    [<ffffffff9c2cb4dd>] kthread+0xfd/0x130
    [<ffffffff9c201c1f>] ret_from_fork+0x1f/0x30

Fix it by calling kfree() accordingly.

Fixes: 38e44da591 ("thermal: int3400_thermal: process "thermal table changed" event")
Signed-off-by: Chuansheng Liu <chuansheng.liu@intel.com>
Cc: 4.14+ <stable@vger.kernel.org> # 4.14+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2022-02-24 20:14:19 +01:00
..
broadcom thermal/drivers/bcm2835: Remove redundant dev_err call in bcm2835_thermal_probe() 2021-04-20 08:58:47 +02:00
intel thermal: int340x: fix memory leak in int3400_notify() 2022-02-24 20:14:19 +01:00
qcom thermal/drivers/tsens: Add timeout to get_temp_tsens_valid 2021-10-16 20:24:43 +02:00
samsung thermal/drivers/exynos: Fix an error code in exynos_tmu_probe() 2021-08-14 12:40:35 +02:00
st thermal/drivers/st: Use devm_platform_get_and_ioremap_resource() 2021-06-14 19:01:15 +02:00
tegra thermal/drivers/tegra-soctherm: Silence message about clamped temperature 2021-08-14 15:44:15 +02:00
ti-soc-thermal thermal/ti-soc-thermal: Fix kernel-doc 2021-05-24 22:38:05 +02:00
amlogic_thermal.c thermal: amlogic: Omit superfluous error message in amlogic_thermal_probe() 2021-03-10 12:52:55 +01:00
armada_thermal.c thermal: Explicitly enable non-changing thermal zone devices 2020-06-29 20:26:37 +02:00
cpufreq_cooling.c thermal: cpufreq_cooling: Use new thermal pressure update function 2021-11-23 15:10:26 +05:30
cpuidle_cooling.c thermal/drivers/cpuidle_cooling: Fix use after error 2021-04-15 13:21:26 +02:00
da9062-thermal.c thermal/core: Remove ms based delay fields 2021-01-19 22:23:49 +01:00
db8500_thermal.c
devfreq_cooling.c thermal/drivers/devfreq_cooling: use HZ macros 2021-09-08 11:50:25 -07:00
dove_thermal.c thermal: Explicitly enable non-changing thermal zone devices 2020-06-29 20:26:37 +02:00
gov_bang_bang.c
gov_fair_share.c thermal/core/fair share: Use the lockless __thermal_cdev_update() function 2021-04-22 23:51:32 +02:00
gov_power_allocator.c thermal/core/power allocator: Use the lockless __thermal_cdev_update() function 2021-04-22 23:51:32 +02:00
gov_step_wise.c thermal/core: Remove the 'forced_passive' option 2021-01-19 22:22:45 +01:00
gov_user_space.c thermal: Replace pr_warn() with pr_warn_once() in user_space_bind() 2021-11-05 17:47:14 +01:00
hisi_thermal.c thermal/drivers/hisi: Remove redundant dev_err call in hisi_thermal_probe() 2021-04-20 09:18:57 +02:00
imx8mm_thermal.c thermal/drivers/imx8mm: Enable ADC when enabling monitor 2021-12-02 11:12:24 +01:00
imx_sc_thermal.c thermal/drivers/imx_sc: Add missing of_node_put for loop iteration 2021-06-14 22:41:00 +02:00
imx_thermal.c thermal/drivers/imx: Implement runtime PM support 2021-11-30 15:42:28 +01:00
k3_bandgap.c
Kconfig thermal/drivers: Add TSU driver for RZ/G2L 2021-11-30 17:27:56 +01:00
khadas_mcu_fan.c thermal/core: Make cooling device state change private 2021-01-19 22:31:10 +01:00
kirkwood_thermal.c thermal: Explicitly enable non-changing thermal zone devices 2020-06-29 20:26:37 +02:00
Makefile thermal/drivers: Add TSU driver for RZ/G2L 2021-11-30 17:27:56 +01:00
max77620_thermal.c
mtk_thermal.c thermal/drivers/mediatek: Add sensors-support 2021-07-04 18:28:04 +02:00
qoriq_thermal.c
rcar_gen3_thermal.c thermal: rcar_gen3_thermal: Read calibration from hardware 2021-10-15 09:15:52 +02:00
rcar_thermal.c thermal/drivers/rcar: Remove notification usage 2020-12-15 17:01:55 +01:00
rockchip_thermal.c thermal/drivers/rockchip_thermal: Allow more resets for tsadc node 2021-10-17 00:15:09 +02:00
rzg2l_thermal.c thermal/drivers/rz2gl: Add error check for reset_control_deassert() 2021-12-09 15:58:09 +01:00
spear_thermal.c thermal: Explicitly enable non-changing thermal zone devices 2020-06-29 20:26:37 +02:00
sprd_thermal.c thermal/drivers/sprd: Add missing of_node_put for loop iteration 2021-06-14 22:42:09 +02:00
sun8i_thermal.c thermal: Fix couple of spellos in the file sun8i_thermal.c 2021-03-10 12:54:58 +01:00
thermal_core.c thermal: core: Reset previous low and high trip during thermal zone init 2021-11-16 20:29:27 +01:00
thermal_core.h thermal/core: Create a helper __thermal_cdev_update() without a lock 2021-04-22 14:10:28 +02:00
thermal_helpers.c thermal/core: Create a helper __thermal_cdev_update() without a lock 2021-04-22 14:10:28 +02:00
thermal_hwmon.c thermal/drivers/hwmon: Cleanup coding style a bit 2020-11-12 11:24:01 +01:00
thermal_hwmon.h
thermal_mmio.c thermal/drivers/thermal_mmio: Constify static struct thermal_mmio_ops 2021-10-07 15:18:31 +02:00
thermal_netlink.c thermal/drivers/netlink: Add the temperature when crossing a trip point 2021-10-07 15:41:38 +02:00
thermal_netlink.h thermal/drivers/netlink: Add the temperature when crossing a trip point 2021-10-07 15:41:38 +02:00
thermal_of.c thermal: Fix NULL pointer dereferences in of_thermal_ functions 2021-11-05 17:35:56 +01:00
thermal_sysfs.c thermal/core: Deprecate changing cooling device state from userspace 2021-10-21 17:35:11 +02:00
thermal-generic-adc.c
uniphier_thermal.c thermal/drivers/uniphier: Add compatible string for NX1 SoC 2021-10-18 14:00:13 +02:00