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authorStefano Stabellini <stefano.stabellini@eu.citrix.com>2016-01-06 16:32:22 +0000
committerStefano Stabellini <stefano.stabellini@eu.citrix.com>2016-01-14 16:49:11 +0000
commitac0487e1d2ae811cd4d035741a109a4ecfb013f1 (patch)
tree200aac3b8918640a4f467cf9901c728d5f6dfd50 /xen-hvm-stub.c
parent9027ac50fdd66577a978c6363e3fb52e130d86e7 (diff)
downloadqemu-arm-ac0487e1d2ae811cd4d035741a109a4ecfb013f1.tar.gz
xenfb.c: avoid expensive loops when prod <= out_cons
If the frontend sets out_cons to a value higher than out_prod, it will cause xenfb_handle_events to loop about 2^32 times. Avoid that by using better checks at the beginning of the function. Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Reported-by: Ling Liu <liuling-it@360.cn>
Diffstat (limited to 'xen-hvm-stub.c')
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