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Commit de65b012 authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Jens Axboe
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block: reject attempts to allocate more than DISK_MAX_PARTS partitions 



Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 10433d04

block/genhd.c

+7 −0
Original line number Diff line number Diff line
@@ -1357,6 +1357,13 @@ struct gendisk *alloc_disk_node(int minors, int node_id) 
	struct gendisk *disk;

	struct disk_part_tbl *ptbl;



	if (minors > DISK_MAX_PARTS) {

		printk(KERN_ERR

			"block: can't allocated more than %d partitions\n",

			DISK_MAX_PARTS);

		minors = DISK_MAX_PARTS;

	}



	disk = kzalloc_node(sizeof(struct gendisk), GFP_KERNEL, node_id);

	if (disk) {

		if (!init_part_stats(&disk->part0)) {