5.4-stable review patch. If anyone has any objections, please let me know.
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From: Zhang Zekun zhangzekun11@huawei.com
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 Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- 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_r if (!adev->smc_rreg) return -EOPNOTSUPP;
- if (size > 4096 || size & 0x3 || *pos & 0x3) + if (size & 0x3 || *pos & 0x3) return -EINVAL;
while (size) {