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disk/lvm: Do not allow a LV to be it's own segment's node's LV

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This prevents infinite recursion in the diskfilter verification code.

Signed-off-by: Daniel Axtens <dja@axtens.net>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
This commit is contained in:
Daniel Axtens 2021-01-22 14:42:21 +11:00 committed by Daniel Kiper
parent 7012936847
commit e18a000738
1 changed files with 7 additions and 3 deletions
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10
grub-core/disk/lvm.c
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@ -981,9 +981,13 @@ grub_lvm_detect (grub_disk_t disk,
}
if (lv1->segments[i].nodes[j].pv == NULL)
for (lv2 = vg->lvs; lv2; lv2 = lv2->next)
if (grub_strcmp (lv2->name,
lv1->segments[i].nodes[j].name) == 0)
lv1->segments[i].nodes[j].lv = lv2;
{
if (lv1 == lv2)
continue;
if (grub_strcmp (lv2->name,
lv1->segments[i].nodes[j].name) == 0)
lv1->segments[i].nodes[j].lv = lv2;
}
}
}