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backends/x11: Don't try to read more button states than there are

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This was causing an (inconsequential) invalid read.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1728>
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Sebastian Keller 2021-02-11 15:42:00 +01:00 committed by Marge Bot
parent 2744722b8c
commit 335a85ab84
1 changed files with 1 additions and 1 deletions
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2
src/backends/x11/meta-seat-x11.c
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@ -1514,7 +1514,7 @@ translate_state (XIButtonState *button_state,
if (button_state)
{
for (i = 1; i <= button_state->mask_len * 8; i++)
for (i = 1; i < button_state->mask_len * 8; i++)
{
if (!XIMaskIsSet (button_state->mask, i))
continue;