From: Oded Gabbay <oded.gabbay@gmail.com>
To: linux-kernel@vger.kernel.org, SW_Drivers@habana.ai
Cc: Moti Haimovski <mhaimovski@habana.ai>
Subject: [PATCH 1/2] habanalabs: prevent user buff overflow
Date: Sat, 29 Aug 2020 11:03:46 +0300 [thread overview]
Message-ID: <20200829080347.26050-1-oded.gabbay@gmail.com> (raw)
From: Moti Haimovski <mhaimovski@habana.ai>
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>
---
drivers/misc/habanalabs/common/debugfs.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
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;
--
2.17.1
next reply other threads:[~2020-08-29 8:04 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-29 8:03 Oded Gabbay [this message]
2020-08-29 8:03 ` [PATCH 2/2] habanalabs: fix report of RAZWI initiator coordinates Oded Gabbay
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