On Wed, Dec 04, 2024 at 04:22:31PM +0800, Zhang Zekun wrote: > This reverts commit 673bdb4200c092692f83b5f7ba3df57021d52d29. > > 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@xxxxxxxxxx> > --- > 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 4776196b2021..98bd8a23e5b0 100644 > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c > @@ -394,7 +394,7 @@ 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) { > -- > 2.17.1 > > Sorry, but 4.19.y is now end-of-life.