From: Moti Haimovski mhaimovski@habana.ai
[ Upstream commit 6396feabf7a4104a4ddfecc00b8aac535c631a66 ]
This commit fixes a potential debugfs issue that may occur when reading the clock gating mask into the user buffer since the user buffer size was not taken into consideration.
Signed-off-by: Moti Haimovski mhaimovski@habana.ai Reviewed-by: Oded Gabbay oded.gabbay@gmail.com Signed-off-by: Oded Gabbay oded.gabbay@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/misc/habanalabs/debugfs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/misc/habanalabs/debugfs.c b/drivers/misc/habanalabs/debugfs.c index 6c2b9cf45e831..650922061bdc7 100644 --- a/drivers/misc/habanalabs/debugfs.c +++ b/drivers/misc/habanalabs/debugfs.c @@ -982,7 +982,7 @@ static ssize_t hl_clk_gate_read(struct file *f, char __user *buf, return 0;
sprintf(tmp_buf, "0x%llx\n", hdev->clock_gating_mask); - rc = simple_read_from_buffer(buf, strlen(tmp_buf) + 1, ppos, tmp_buf, + rc = simple_read_from_buffer(buf, count, ppos, tmp_buf, strlen(tmp_buf) + 1);
return rc;