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xorg-x11-drv-libinput add missing patch 

Signed-off-by: guibuilder_pel7x64builder0 <guibuilder@powerel.org>
master
guibuilder_pel7x64builder0 2018-11-26 10:26:39 +01:00
parent f8aff6c4e0
commit 0dd85e7427
1 changed files with 112 additions and 0 deletions
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112
SOURCES/0001-draglock-fix-memory-overwrite-during-draglock-parsin.patch Normal file
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@ -0,0 +1,112 @@
From 0909a1a76546284f27fb1b17a6f545a04537cc36 Mon Sep 17 00:00:00 2001
From: Peter Hutterer <peter.hutterer@who-t.net>
Date: Tue, 10 Jul 2018 11:17:50 +1000
Subject: [PATCH xf86-input-libinput] draglock: fix memory overwrite during
draglock parsing

Passing in the size of the array but using it as "number of elements" inside
the function. Rename a bunch of arguments to avoid this.

https://bugs.freedesktop.org/show_bug.cgi?id=107166

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
---
src/draglock.c | 14 +++++++-------
src/draglock.h | 6 +++---
src/xf86libinput.c | 2 +-
3 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/src/draglock.c b/src/draglock.c
index b0bcac3..e0a91d0 100644
--- a/src/draglock.c
+++ b/src/draglock.c
@@ -116,7 +116,7 @@ draglock_get_meta(const struct draglock *dl)
}
size_t
-draglock_get_pairs(const struct draglock *dl, int *array, size_t sz)
+draglock_get_pairs(const struct draglock *dl, int *array, size_t nelem)
{
unsigned int i;
size_t last = 0;
@@ -131,8 +131,8 @@ draglock_get_pairs(const struct draglock *dl, int *array, size_t sz)
}
/* size N array with a[0] == 0, the rest ordered by button number */
- memset(array, 0, sz * sizeof(array[0]));
- for (i = 0; i < sz && i < ARRAY_SIZE(dl->lock_pair); i++) {
+ memset(array, 0, nelem * sizeof(array[0]));
+ for (i = 0; i < nelem && i < ARRAY_SIZE(dl->lock_pair); i++) {
array[i] = dl->lock_pair[i];
if (array[i] != 0 && i > last)
last = i;
@@ -153,20 +153,20 @@ draglock_set_meta(struct draglock *dl, int meta_button)
}
int
-draglock_set_pairs(struct draglock *dl, const int *array, size_t sz)
+draglock_set_pairs(struct draglock *dl, const int *array, size_t nelem)
{
unsigned int i;
- if (sz == 0 || array[0] != 0)
+ if (nelem == 0 || array[0] != 0)
return 1;
- for (i = 0; i < sz; i++) {
+ for (i = 0; i < nelem; i++) {
if (array[i] < 0 || array[i] >= DRAGLOCK_MAX_BUTTONS)
return 1;
}
dl->mode = DRAGLOCK_DISABLED;
- for (i = 0; i < sz; i++) {
+ for (i = 0; i < nelem; i++) {
dl->lock_pair[i] = array[i];
if (dl->lock_pair[i])
dl->mode = DRAGLOCK_PAIRS;
diff --git a/src/draglock.h b/src/draglock.h
index acc1314..900d538 100644
--- a/src/draglock.h
+++ b/src/draglock.h
@@ -107,13 +107,13 @@ draglock_get_meta(const struct draglock *dl);
* @note Button numbers start at 1, array[0] is always 0.
*
* @param[in|out] array Caller-allocated array to hold the button mappings.
- * @param[in] sz Maximum number of elements in array
+ * @param[in] nelem Maximum number of elements in array
*
* @return The number of valid elements in array or 0 if the current mode is
* not DRAGLOCK_PAIRS
*/
size_t
-draglock_get_pairs(const struct draglock *dl, int *array, size_t sz);
+draglock_get_pairs(const struct draglock *dl, int *array, size_t nelem);
/**
* Set the drag lock config to the DRAGLOCK_META mode, with the given
@@ -140,7 +140,7 @@ draglock_set_meta(struct draglock *dl, int meta_button);
* @return 0 on successor nonzero otherwise
*/
int
-draglock_set_pairs(struct draglock *dl, const int *array, size_t sz);
+draglock_set_pairs(struct draglock *dl, const int *array, size_t nelem);
/**
* Process the given button event through the drag lock state machine.
diff --git a/src/xf86libinput.c b/src/xf86libinput.c
index 2e950cd..34f1102 100644
--- a/src/xf86libinput.c
+++ b/src/xf86libinput.c
@@ -5326,7 +5326,7 @@ LibinputInitDragLockProperty(DeviceIntPtr dev,
break;
case DRAGLOCK_PAIRS:
sz = draglock_get_pairs(&driver_data->draglock,
- dl_values, sizeof(dl_values));
+ dl_values, ARRAY_SIZE(dl_values));
break;
default:
xf86IDrvMsg(dev->public.devicePrivate,
--
2.17.1