linux/drivers/eisa
Azeem Shaikh b6ed2f7758 EISA: 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>
Link: https://lore.kernel.org/r/20230706175804.2249018-1-azeemshaikh38@gmail.com
Signed-off-by: Kees Cook <keescook@chromium.org>
# diff --git a/drivers/eisa/eisa-bus.c b/drivers/eisa/eisa-bus.c
# index 713582cc27d1..33f0ba11c6ad 100644
# --- a/drivers/eisa/eisa-bus.c
# +++ b/drivers/eisa/eisa-bus.c
# @@ -60,7 +60,7 @@ static void __init eisa_name_device(struct eisa_device *edev)
#  	int i;
#  	for (i = 0; i < EISA_INFOS; i++) {
#  		if (!strcmp(edev->id.sig, eisa_table[i].id.sig)) {
# -			strlcpy(edev->pretty_name,
# +			strscpy(edev->pretty_name,
#  				eisa_table[i].name,
#  				sizeof(edev->pretty_name));
#  			return;
2023-07-27 10:04:42 -07:00
..
.gitignore .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
eisa-bus.c EISA: Replace all non-returning strlcpy with strscpy 2023-07-27 10:04:42 -07:00
eisa.ids
Kconfig treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
Makefile
pci_eisa.c EISA: Drop unused pci_bus_for_each_resource() index argument 2023-04-05 15:10:14 -05:00
virtual_root.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 210 2019-05-30 11:29:53 -07:00