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drm/amdgpu: Validate TA binary size

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Add TA binary size validation to avoid OOB write.

Signed-off-by: Candice Li <candice.li@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Candice Li 2024-08-15 11:37:28 +08:00 committed by Alex Deucher
parent eb067d65c3
commit c0a04e3570
1 changed files with 3 additions and 0 deletions
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3
drivers/gpu/drm/amd/amdgpu/amdgpu_psp_ta.c
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@ -166,6 +166,9 @@ static ssize_t ta_if_load_debugfs_write(struct file *fp, const char *buf, size_t
if (ret)
return -EFAULT;
if (ta_bin_len > PSP_1_MEG)
return -EINVAL;
copy_pos += sizeof(uint32_t);
ta_bin = kzalloc(ta_bin_len, GFP_KERNEL);