Author: tsoome
Date: Sun May 5 06:38:47 2019
New Revision: 347142
URL: https://svnweb.freebsd.org/changeset/base/347142
Log:
loader: validate sectorsize argument in disk_open()
The bug and patch is reported against 11.2, but it is good idea to have
the check in place for all versions.
PR: 236585
Submitted by: j...@feith.com
Reported by: j...@feith.com
MFC after: 1 day
Modified:
head/stand/common/disk.c
Modified: head/stand/common/disk.c
==============================================================================
--- head/stand/common/disk.c Sun May 5 06:32:40 2019 (r347141)
+++ head/stand/common/disk.c Sun May 5 06:38:47 2019 (r347142)
@@ -221,6 +221,10 @@ disk_open(struct disk_devdesc *dev, uint64_t mediasize
struct ptable_entry part;
int rc, slice, partition;
+ if (sectorsize == 0) {
+ DPRINTF("unknown sector size");
+ return (ENXIO);
+ }
rc = 0;
od = (struct open_disk *)malloc(sizeof(struct open_disk));
if (od == NULL) {
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