diff options
Diffstat (limited to 'miscutils/ubirename.c')
| -rw-r--r-- | miscutils/ubirename.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/miscutils/ubirename.c b/miscutils/ubirename.c index 786c4b9..ecc8fe1 100644 --- a/miscutils/ubirename.c +++ b/miscutils/ubirename.c @@ -14,6 +14,7 @@ //config: Utility to rename UBI volumes //applet:IF_UBIRENAME(APPLET(ubirename, BB_DIR_USR_SBIN, BB_SUID_DROP)) +/* not NOEXEC: if flash operation stalls, use less memory in "hung" process */ //kbuild:lib-$(CONFIG_UBIRENAME) += ubirename.o @@ -80,9 +81,12 @@ int ubirename_main(int argc, char **argv) argv += 2; while (argv[0]) { rnvol->ents[n].vol_id = ubi_get_volid_by_name(ubi_devnum, argv[0]); - rnvol->ents[n].name_len = strlen(argv[1]); + + /* strnlen avoids overflow of 16-bit field (paranoia) */ + rnvol->ents[n].name_len = strnlen(argv[1], sizeof(rnvol->ents[n].name)); if (rnvol->ents[n].name_len >= sizeof(rnvol->ents[n].name)) bb_error_msg_and_die("new name '%s' is too long", argv[1]); + strcpy(rnvol->ents[n].name, argv[1]); n++; argv += 2; |