diff options
| author | Wes Peters <wes@FreeBSD.org> | 2004-09-21 06:46:44 +0000 |
|---|---|---|
| committer | Wes Peters <wes@FreeBSD.org> | 2004-09-21 06:46:44 +0000 |
| commit | ecaf63f715ecbbc3a44b725c7f621bee268270a1 (patch) | |
| tree | 6b8cebd9f598fbd973ca798739fb16be172d322d /sys/boot | |
| parent | 98da5dfbb226d631fef17748faae83e59fefed62 (diff) | |
Notes
Diffstat (limited to 'sys/boot')
| -rw-r--r-- | sys/boot/i386/libi386/biosdisk.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/sys/boot/i386/libi386/biosdisk.c b/sys/boot/i386/libi386/biosdisk.c index aeac2e38904c..b97a2685c29d 100644 --- a/sys/boot/i386/libi386/biosdisk.c +++ b/sys/boot/i386/libi386/biosdisk.c @@ -209,6 +209,10 @@ bd_int13probe(struct bdinfo *bd) if (!(v86.efl & 0x1) && /* carry clear */ ((v86.edx & 0xff) > ((unsigned)bd->bd_unit & 0x7f))) { /* unit # OK */ + if ((v86.ecx & 0x3f) == 0) { /* absurd sector size */ + DEBUG("Invalid geometry for unit %d", bd->bd_unit); + return(0); /* skip device */ + } bd->bd_flags |= BD_MODEINT13; bd->bd_type = v86.ebx & 0xff; |