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zfsboot: vdev_read_pad2 does allocate buffer with wrong size

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vdev_read_pad2() does read VDEV_PAD_SIZE of data, and will copy size bytes
of it, hence, we need buffer of VDEV_PAD_SIZE bytes.

Issue introduced in r357497.

Reported by:	se
This commit is contained in:
Toomas Soome 2020-02-05 11:02:00 +00:00
parent a1746b2583
commit 7503958e4c
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=357569
1 changed files with 1 additions and 1 deletions
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2
stand/i386/zfsboot/zfsboot.c
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@ -324,7 +324,7 @@ vdev_read_pad2(vdev_t *vdev, char *buf, size_t size)
if (size > VDEV_PAD_SIZE)
size = VDEV_PAD_SIZE;
tmp = malloc(size);
tmp = malloc(VDEV_PAD_SIZE);
if (tmp == NULL)
return (ENOMEM);