Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 5.4 304/355] soc: fsl: dpaa2-console: free buffer before returning from dpaa2_console_read | Date | Mon, 15 Nov 2021 18:03:48 +0100 |
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From: Robert-Ionut Alexa <robert-ionut.alexa@nxp.com>
[ Upstream commit 8120bd469f5525da229953c1197f2b826c0109f4 ]
Free the kbuf buffer before returning from the dpaa2_console_read() function. The variable no longer goes out of scope, leaking the storage it points to.
Fixes: c93349d8c170 ("soc: fsl: add DPAA2 console support") Signed-off-by: Robert-Ionut Alexa <robert-ionut.alexa@nxp.com> Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Signed-off-by: Li Yang <leoyang.li@nxp.com> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/soc/fsl/dpaa2-console.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/soc/fsl/dpaa2-console.c b/drivers/soc/fsl/dpaa2-console.c index 27243f706f376..53917410f2bdb 100644 --- a/drivers/soc/fsl/dpaa2-console.c +++ b/drivers/soc/fsl/dpaa2-console.c @@ -231,6 +231,7 @@ static ssize_t dpaa2_console_read(struct file *fp, char __user *buf, cd->cur_ptr += bytes; written += bytes; + kfree(kbuf); return written; err_free_buf: -- 2.33.0
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