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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2017-01-31 22:56:43 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-02-14 23:25:34 (GMT) |
| commit | 2089e4563d50c44f187df1ed63a906e05708cf51 (patch) | |
| tree | 707648a503ff0a4363b4312aabd97f434fc8bd30 /security | |
| parent | 1a815c52d57ebf35bfb516eafada98eeda292d66 (diff) | |
| download | linux-2089e4563d50c44f187df1ed63a906e05708cf51.tar.xz | |
Input: uinput - fix crash when mixing old and new init style
commit 601bbbe0517303c9f8eb3d75e11d64efed1293c9 upstream.
If user tries to initialize uinput device mixing old and new style
initialization (i.e. using old UI_SET_ABSBIT instead of UI_ABS_SETUP,
we forget to allocate input->absinfo and will crash when trying to send
absolute events:
ioctl(ui, UI_DEV_SETUP, &us);
ioctl(ui, UI_SET_PHYS, "Test");
ioctl(ui, UI_SET_EVBIT, EV_ABS);
ioctl(ui, UI_SET_ABSBIT, ABS_X);
ioctl(ui, UI_SET_ABSBIT, ABS_Y);
ioctl(ui, UI_DEV_CREATE, 0);
Reported-by: Rodrigo Rivas Costa <rodrigorivascosta@gmail.com>
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=191811
Fixes: fbae10db0940 ("Input: uinput - rework ABS validation")
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'security')
0 files changed, 0 insertions, 0 deletions