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| author |   Moti Haimovski <mhaimovski@habana.ai> | 2020-08-19 17:40:33 +0300 |
|---|---|---|
| committer |   Oded Gabbay <oded.gabbay@gmail.com> | 2020-08-31 15:10:27 +0300 |
| commit | 6396feabf7a4104a4ddfecc00b8aac535c631a66 (patch) | |
| tree | db334ddac88a5e85ebdc9d9737274f87373fd00d /drivers/misc | |
| parent | Linux 5.9-rc3 (diff) | |
| download | wireguard-linux-6396feabf7a4104a4ddfecc00b8aac535c631a66.tar.xz wireguard-linux-6396feabf7a4104a4ddfecc00b8aac535c631a66.zip | |
habanalabs: prevent user buff overflow
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>
Diffstat (limited to 'drivers/misc')
| -rw-r--r-- | drivers/misc/habanalabs/common/debugfs.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/misc/habanalabs/common/debugfs.c b/drivers/misc/habanalabs/common/debugfs.c index 37701e4f9d5a..aa77771635d3 100644 --- a/drivers/misc/habanalabs/common/debugfs.c +++ b/drivers/misc/habanalabs/common/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; |