UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

checkpatch: Check for strcpy and strncpy too 

Warn about strcpy(), strncpy(), and strlcpy(). Suggest strscpy() and
include pointers to the open KSPP issues for each, which has further
details and replacement procedures.

Cc: Andy Whitcroft <apw@canonical.com>
Cc: Joe Perches <joe@perches.com>
Cc: Dwaipayan Ray <dwaipayanray1@gmail.com>
Cc: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20230517201349.never.582-kees@kernel.org
This commit is contained in:
Kees Cook 2023-05-17 13:13:52 -07:00
parent d0c2d66fcc
commit d0f90841cb
1 changed files with 13 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
scripts/checkpatch.pl
View File

@ -6997,10 +6997,22 @@ sub process {
# }
# }
# strcpy uses that should likely be strscpy
if ($line =~ /\bstrcpy\s*\(/) {
WARN("STRCPY",
"Prefer strscpy over strcpy - see: https://github.com/KSPP/linux/issues/88\n" . $herecurr);
}
# strlcpy uses that should likely be strscpy
if ($line =~ /\bstrlcpy\s*\(/) {
WARN("STRLCPY",
"Prefer strscpy over strlcpy - see: https://lore.kernel.org/r/CAHk-=wgfRnXz0W3D37d01q3JFkr_i_uTL=V6A6G1oUZcprmknw\@mail.gmail.com/\n" . $herecurr);
"Prefer strscpy over strlcpy - see: https://github.com/KSPP/linux/issues/89\n" . $herecurr);
}
# strncpy uses that should likely be strscpy or strscpy_pad
if ($line =~ /\bstrncpy\s*\(/) {
WARN("STRNCPY",
"Prefer strscpy, strscpy_pad, or __nonstring over strncpy - see: https://github.com/KSPP/linux/issues/90\n" . $herecurr);
}
# typecasts on min/max could be min_t/max_t