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linux/drivers/thermal/intel
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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
..
int340x_thermal thermal: int340x: fix memory leak in int3400_notify() 2022-02-24 20:14:19 +01:00
intel_bxt_pmic_thermal.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 2019-05-30 11:26:41 -07:00
intel_menlow.c thermal/drivers/intel: Move intel_menlow to thermal drivers 2021-08-17 14:11:48 +02:00
intel_pch_thermal.c thermal: intel: pch: Fix unexpected shutdown at critical temperature 2021-01-19 22:30:25 +01:00
intel_powerclamp.c thermal/drivers/intel_powerclamp: Constify static thermal_cooling_device_ops 2021-11-30 15:42:39 +01:00
intel_quark_dts_thermal.c thermal: Rename set_mode() to change_mode() 2020-06-29 20:26:39 +02:00
intel_soc_dts_iosf.c thermal/drivers/intel/intel_soc_dts_iosf: Switch to use find_first_zero_bit() 2021-07-04 18:28:04 +02:00
intel_soc_dts_iosf.h thermal: intel: intel_soc_dts_iosf: Utilize for_each_set_clump8 macro 2019-12-04 19:44:12 -08:00
intel_soc_dts_thermal.c thermal: Convert to new X86 CPU match macros 2020-03-24 21:33:53 +01:00
intel_tcc_cooling.c drivers/thermal/intel: Add TCC cooling support for AlderLake platform 2021-08-14 12:41:36 +02:00
Kconfig thermal/drivers/intel: Move intel_menlow to thermal drivers 2021-08-17 14:11:48 +02:00
Makefile thermal/drivers/intel: Move intel_menlow to thermal drivers 2021-08-17 14:11:48 +02:00
therm_throt.c thermal/drivers/intel: Allow processing of HWP interrupt 2021-09-09 16:33:20 +02:00
thermal_interrupt.h thermal/drivers/intel: Allow processing of HWP interrupt 2021-09-09 16:33:20 +02:00
x86_pkg_temp_thermal.c thermal/drivers/intel: Initialize RW trip to THERMAL_TEMP_INVALID 2021-05-14 09:37:27 +02:00