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| author | Colin Ian King <colin.king@canonical.com> | 2019-08-01 12:15:41 +0100 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-08-02 10:30:37 -0500 |
| commit | e3bf125bdbb6efed2d650effbc3c13320602d64a (patch) | |
| tree | 1c355b00731cf3d109e1e6442c8e9d33be0cb9bb /drivers/gpu/drm | |
| parent | 6f7fe9a93e6c09bf988c5059403f5f88e17e21e6 (diff) | |
| download | linux-e3bf125bdbb6efed2d650effbc3c13320602d64a.tar.bz2 | |
drm/amd/powerplay: fix off-by-one upper bounds limit checks
There are two occurrances of off-by-one upper bound checking of indexes
causing potential out-of-bounds array reads. Fix these.
Addresses-Coverity: ("Out-of-bounds read")
Fixes: cb33363d0e85 ("drm/amd/powerplay: add smu feature name support")
Fixes: 6b294793e384 ("drm/amd/powerplay: add smu message name support")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/amd/powerplay/amdgpu_smu.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c index 7414ed9a5013..fb9d6c1b3f33 100644 --- a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c +++ b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c @@ -38,7 +38,7 @@ static const char* __smu_message_names[] = { const char *smu_get_message_name(struct smu_context *smu, enum smu_message_type type) { - if (type < 0 || type > SMU_MSG_MAX_COUNT) + if (type < 0 || type >= SMU_MSG_MAX_COUNT) return "unknow smu message"; return __smu_message_names[type]; } @@ -51,7 +51,7 @@ static const char* __smu_feature_names[] = { const char *smu_get_feature_name(struct smu_context *smu, enum smu_feature_mask feature) { - if (feature < 0 || feature > SMU_FEATURE_COUNT) + if (feature < 0 || feature >= SMU_FEATURE_COUNT) return "unknow smu feature"; return __smu_feature_names[feature]; } |