diff options
Diffstat (limited to 'sbin/bsdlabel/bsdlabel.c')
| -rw-r--r-- | sbin/bsdlabel/bsdlabel.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/sbin/bsdlabel/bsdlabel.c b/sbin/bsdlabel/bsdlabel.c index cef2050..8d44e68 100644 --- a/sbin/bsdlabel/bsdlabel.c +++ b/sbin/bsdlabel/bsdlabel.c @@ -477,6 +477,9 @@ readlabel(int flag) (ioctl(f, DIOCGSECTORSIZE, &secsize) != 0)) { err(4, "cannot get disk geometry"); } + if (mediasize > (off_t)0xffffffff * secsize) + errx(1, + "disks with more than 2^32-1 sectors are not supported"); (void)lseek(f, (off_t)0, SEEK_SET); if (read(f, bootarea, BBSIZE) != BBSIZE) err(4, "%s read", specname); |
