iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drm/mediatek: Replace all non-returning strlcpy with strscpy

Browse Source 
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
This commit is contained in:
Azeem Shaikh 2023-05-22 15:53:06 +00:00 committed by Kees Cook
parent 576f0d7a8a
commit 3213bfde11
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpu/drm/mediatek/mtk_hdmi_ddc.c
View File

@ -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;