This reverts commit 7ccd781794d247589104a791caab491e21218fba.

The origin mainline patch fix a buffer overflow issue in amdgpu_debugfs_gprwave_read(), but it has not been introduced in kernel 6.1 and older kernels. This patch add a check in a wrong function in the same file.

Signed-off-by: Zhang Zekun zhangzekun11@huawei.com --- drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c index fa42b3c7e1b3..48b8b5600402 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c @@ -395,7 +395,7 @@ static ssize_t amdgpu_debugfs_regs_smc_read(struct file *f, char __user *buf, if (!adev->smc_rreg) return -EOPNOTSUPP;

- if (size > 4096 || size & 0x3 || *pos & 0x3) + if (size & 0x3 || *pos & 0x3) return -EINVAL;

while (size) {