diff options
| author | Zhipeng Lu <alexious@zju.edu.cn> | 2023-12-14 19:59:38 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-12-14 23:29:08 +0300 |
| commit | a6582701178a47c4d0cb2188c965c59c0c0647c8 (patch) | |
| tree | 653ce21587976770a0358ca7416f68fc32de2c4d /tools/perf/scripts/python/export-to-sqlite.py | |
| parent | c2709b2d6a537ca0fa0f1da36fdaf07e48ef447d (diff) | |
| download | linux-a6582701178a47c4d0cb2188c965c59c0c0647c8.tar.xz | |
drm/amd/pm: fix a double-free in amdgpu_parse_extended_power_table
The amdgpu_free_extended_power_table is called in every error-handling
paths of amdgpu_parse_extended_power_table. However, after the following
call chain of returning:
amdgpu_parse_extended_power_table
|-> kv_dpm_init / si_dpm_init
(the only two caller of amdgpu_parse_extended_power_table)
|-> kv_dpm_sw_init / si_dpm_sw_init
(the only caller of kv_dpm_init / si_dpm_init, accordingly)
|-> kv_dpm_fini / si_dpm_fini
(goto dpm_failed in xx_dpm_sw_init)
|-> amdgpu_free_extended_power_table
As above, the amdgpu_free_extended_power_table is called twice in this
returning chain and thus a double-free is triggered. Similarily, the
last kfree in amdgpu_parse_extended_power_table also cause a double free
with amdgpu_free_extended_power_table in kv_dpm_fini.
Fixes: 84176663e70d ("drm/amd/pm: create a new holder for those APIs used only by legacy ASICs(si/kv)")
Signed-off-by: Zhipeng Lu <alexious@zju.edu.cn>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-sqlite.py')
0 files changed, 0 insertions, 0 deletions