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| author |   Candice Li <candice.li@amd.com> | 2024-08-15 11:37:28 +0800 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2024-08-20 23:04:17 -0400 |
| commit | c99769bceab4ecb6a067b9af11f9db281eea3e2a (patch) | |
| tree | 7c8e57e603a991bf67a7354e9c1bdc0b5ffc1199 | |
| parent | drm/amdgpu/sdma5.2: limit wptr workaround to sdma 5.2.1 (diff) | |
| download | wireguard-linux-c99769bceab4ecb6a067b9af11f9db281eea3e2a.tar.xz wireguard-linux-c99769bceab4ecb6a067b9af11f9db281eea3e2a.zip | |
drm/amdgpu: Validate TA binary size
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>
(cherry picked from commit c0a04e3570d72aaf090962156ad085e37c62e442)
Cc: stable@vger.kernel.org
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_psp_ta.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp_ta.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp_ta.c index 0c856005df6b..38face981c3e 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp_ta.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp_ta.c @@ -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); |