Git Repo - qemu.git/commit - block/qcow2-refcount.c

]> Git Repo - qemu.git/commit - block/qcow2-refcount.c

author	Kevin Wolf <[email protected]>
	Wed, 26 Mar 2014 12:05:43 +0000 (13:05 +0100)
committer	Stefan Hajnoczi <[email protected]>
	Tue, 1 Apr 2014 12:19:09 +0000 (14:19 +0200)
commit	5dab2faddc8eaa1fb1abdbe2f502001fc13a1b21
tree	675dd5f26040c117c2f2fb040b5ea9dfb623ecf6	tree \| snapshot
parent	a1b3955c9415b1e767c130a2f59fee6aa28e575b	commit \| diff

qcow2: Check refcount table size (CVE-2014-0144)

Limit the in-memory reference count table size to 8 MB, it's enough in
practice. This fixes an unbounded allocation as well as a buffer
overflow in qcow2_refcount_init().

Signed-off-by: Kevin Wolf <[email protected]>
Reviewed-by: Max Reitz <[email protected]>
Signed-off-by: Stefan Hajnoczi <[email protected]>

block/qcow2-refcount.c		diff \| blob \| blame \| history
block/qcow2.c		diff \| blob \| blame \| history
tests/qemu-iotests/080		diff \| blob \| blame \| history
tests/qemu-iotests/080.out		diff \| blob \| blame \| history

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