mirrors/linux
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-04-26 13:22:44 -04:00
Code Issues Packages Projects Releases Wiki Activity

drm/radeon: fix array out-of-bounds read and write issues

Browse Source 
There is an off-by-one bounds check on the index into arrays
table->mc_reg_address and table->mc_reg_table_entry[k].mc_data[j] that
can lead to reads and writes outside of arrays. Fix the bound checking
off-by-one error.

Addresses-Coverity: ("Out-of-bounds read/write")
Fixes: cc8dbbb4f6 ("drm/radeon: add dpm support for CI dGPUs (v2)")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Colin Ian King
2020-06-24 13:07:10 +01:00
committed by Alex Deucher
parent 57f0185664
commit 7ee78aff9d
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpu/drm/radeon/ci_dpm.c
View File

@@ -4351,7 +4351,7 @@ static int ci_set_mc_special_registers(struct radeon_device *rdev,
table->mc_reg_table_entry[k].mc_data[j] |= 0x100;
}
j++;
if (j > SMU7_DISCRETE_MC_REGISTER_ARRAY_SIZE)
if (j >= SMU7_DISCRETE_MC_REGISTER_ARRAY_SIZE)
return -EINVAL;
if (!pi->mem_gddr5) {