| commit | ac0487e1d2ae811cd4d035741a109a4ecfb013f1 | |
| author | Stefano Stabellini <stefano.stabellini@eu.citrix.com> | |
| Wed, 6 Jan 2016 16:32:22 +0000 (6 16:32 +0000) | ||
| committer | Stefano Stabellini <stefano.stabellini@eu.citrix.com> | |
| Thu, 14 Jan 2016 16:49:11 +0000 (14 16:49 +0000) | ||
| tree | 200aac3b8918640a4f467cf9901c728d5f6dfd50 | treesnapshot (tar.gz zip) |
| parent | 9027ac50fdd66577a978c6363e3fb52e130d86e7 | commitdiff |
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>
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>
| hw/display/xenfb.c | diffblobblamehistory |