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| author | Jason Wang <jasowang@redhat.com> | 2018-02-11 11:28:12 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-05-30 07:50:27 +0200 |
| commit | 2e857aaf091f00b342f5d66e1ffa77bcb25c1f6a (patch) | |
| tree | 341614ea680cbf7ebf6ec564afc8bf5329cd7c0d /drivers/ata | |
| parent | a5338dbdf1e711e9873ff1958c0adc180d40dfe1 (diff) | |
ptr_ring: prevent integer overflow when calculating size
[ Upstream commit 54e02162d4454a99227f520948bf4494c3d972d0 ]
Switch to use dividing to prevent integer overflow when size is too
big to calculate allocation size properly.
Reported-by: Eric Biggers <ebiggers3@gmail.com>
Fixes: 6e6e41c31122 ("ptr_ring: fail early if queue occupies more than KMALLOC_MAX_SIZE")
Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/ata')
0 files changed, 0 insertions, 0 deletions