If a device being used is disconnected, it may be possible to find
yourself in a situation where a second device performs an "active"
check and dereferences a null (freed in 'wcmFree') 'priv' pointer.
To prevent this from occuring, always check if the device being
uninitialized is considered 'active' and unset it if so.
Signed-off-by: Jason Gerecke <killert...@gmail.com>
---
src/wcmConfig.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/src/wcmConfig.c b/src/wcmConfig.c
index 138a769..5551087 100644
--- a/src/wcmConfig.c
+++ b/src/wcmConfig.c
@@ -236,6 +236,9 @@ static void wcmUninit(InputDriverPtr drv, InputInfoPtr
pInfo, int flags)
DBG(1, priv, "\n");
+ if (WACOM_DRIVER.active == priv)
+ WACOM_DRIVER.active = NULL;
+
/* Server 1.10 will UnInit all devices for us */
#if GET_ABI_MAJOR(ABI_XINPUT_VERSION) < 12
if (priv->isParent)
--
2.1.0
------------------------------------------------------------------------------
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