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| author | Nikita Zhandarovich <n.zhandarovich@fintech.ru> | 2023-04-13 08:12:28 -0700 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-04-18 16:28:54 -0400 |
| commit | 20c3dffdccbd494e0dd631d1660aeecbff6775f2 (patch) | |
| tree | 73d5d315ad7ceaead3e74a6b60e9b3c8b715a6d5 /drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c | |
| parent | 94344e62a9ce8abcf681390f9822a7b075cf98e2 (diff) | |
radeon: avoid double free in ci_dpm_init()
Several calls to ci_dpm_fini() will attempt to free resources that
either have been freed before or haven't been allocated yet. This
may lead to undefined or dangerous behaviour.
For instance, if r600_parse_extended_power_table() fails, it might
call r600_free_extended_power_table() as will ci_dpm_fini() later
during error handling.
Fix this by only freeing pointers to objects previously allocated.
Found by Linux Verification Center (linuxtesting.org) with static
analysis tool SVACE.
Fixes: cc8dbbb4f62a ("drm/radeon: add dpm support for CI dGPUs (v2)")
Co-developed-by: Natalia Petrova <n.petrova@fintech.ru>
Signed-off-by: Nikita Zhandarovich <n.zhandarovich@fintech.ru>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c')
0 files changed, 0 insertions, 0 deletions