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| author | Dan Carpenter <dan.carpenter@oracle.com> | 2011-11-04 21:24:08 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-11-21 14:31:24 -0800 |
| commit | 2c59105ba0af5df97d9b614c999553f79d6ece67 (patch) | |
| tree | fe2e1d22735e5fbc6fe91f106863eb1ba95b2301 /drivers/xen/balloon.c | |
| parent | 66e85a1675dc6d4e05e0fd152ef1ad485b3fb985 (diff) | |
xen-gntalloc: integer overflow in gntalloc_ioctl_alloc()
commit 21643e69a4c06f7ef155fbc70e3fba13fba4a756 upstream.
On 32 bit systems a high value of op.count could lead to an integer
overflow in the kzalloc() and gref_ids would be smaller than
expected. If the you triggered another integer overflow in
"if (gref_size + op.count > limit)" then you'd probably get memory
corruption inside add_grefs().
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/xen/balloon.c')
0 files changed, 0 insertions, 0 deletions