diff options
| author | Azeem Shaikh <azeemshaikh38@gmail.com> | 2023-05-22 15:53:06 +0000 |
|---|---|---|
| committer | Kees Cook <keescook@chromium.org> | 2023-06-01 07:07:37 -0700 |
| commit | 3213bfde114f9ce37e2a0264d368dcf8a2347bea (patch) | |
| tree | 0cad7b657ed1334111a377d6f0aef706c3c0c111 | |
| parent | 576f0d7a8ad3219a35d06a297005cc1aa14ae96f (diff) | |
drm/mediatek: Replace all non-returning strlcpy with strscpy
strlcpy() reads the entire source buffer first.
This read may exceed the destination size limit.
This is both inefficient and can lead to linear read
overflows if a source string is not NUL-terminated [1].
In an effort to remove strlcpy() completely [2], replace
strlcpy() here with strscpy().
No return values were used, so direct replacement is safe.
[1] https://www.kernel.org/doc/html/latest/process/deprecated.html#strlcpy
[2] https://github.com/KSPP/linux/issues/89
Signed-off-by: Azeem Shaikh <azeemshaikh38@gmail.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20230522155306.2336889-1-azeemshaikh38@gmail.com
| -rw-r--r-- | drivers/gpu/drm/mediatek/mtk_hdmi_ddc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi_ddc.c b/drivers/gpu/drm/mediatek/mtk_hdmi_ddc.c index 2fc9214ffa82b..4d39ea0a05ca4 100644 --- a/drivers/gpu/drm/mediatek/mtk_hdmi_ddc.c +++ b/drivers/gpu/drm/mediatek/mtk_hdmi_ddc.c @@ -295,7 +295,7 @@ static int mtk_hdmi_ddc_probe(struct platform_device *pdev) return ret; } - strlcpy(ddc->adap.name, "mediatek-hdmi-ddc", sizeof(ddc->adap.name)); + strscpy(ddc->adap.name, "mediatek-hdmi-ddc", sizeof(ddc->adap.name)); ddc->adap.owner = THIS_MODULE; ddc->adap.class = I2C_CLASS_DDC; ddc->adap.algo = &mtk_hdmi_ddc_algorithm; |