`strncpy` is deprecated for use on NUL-terminated destination strings [1]. A suitable replacement is `strscpy` [2] due to the fact that it guarantees NUL-termination on its destination buffer argument which is _not_ the case for `strncpy`! Link: www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings[1] Link: https://manpages.debian.org/testing/linux-manual-4.8/strscpy.9.en.html [2] Link: https://github.com/KSPP/linux/issues/90 Cc: linux-hardening@xxxxxxxxxxxxxxx Signed-off-by: Justin Stitt <justinstitt@xxxxxxxxxx> --- block/partitions/ibm.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/block/partitions/ibm.c b/block/partitions/ibm.c index 403756dbd50d..e5893cf71b57 100644 --- a/block/partitions/ibm.c +++ b/block/partitions/ibm.c @@ -111,11 +111,11 @@ static int find_label(struct parsed_partitions *state, !strcmp(temp, "LNX1") || !strcmp(temp, "CMS1")) { if (!strcmp(temp, "VOL1")) { - strncpy(type, label->vol.vollbl, 4); - strncpy(name, label->vol.volid, 6); + strscpy(type, label->vol.vollbl, 4); + strscpy(name, label->vol.volid, 6); } else { - strncpy(type, label->lnx.vollbl, 4); - strncpy(name, label->lnx.volid, 6); + strscpy(type, label->lnx.vollbl, 4); + strscpy(name, label->lnx.volid, 6); } EBCASC(type, 4); EBCASC(name, 6); --- base-commit: 706a741595047797872e669b3101429ab8d378ef change-id: 20230822-strncpy-block-partitions-cmdline-ibm-7f5bcca507ea Best regards, -- Justin Stitt <justinstitt@xxxxxxxxxx>
