diff options
Diffstat (limited to 'external/meta-openembedded/meta-oe/recipes-graphics/x11vnc/files/src-cursor-fix-xfc-NULL-pointer-dereference.patch')
| -rw-r--r-- | external/meta-openembedded/meta-oe/recipes-graphics/x11vnc/files/src-cursor-fix-xfc-NULL-pointer-dereference.patch | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/external/meta-openembedded/meta-oe/recipes-graphics/x11vnc/files/src-cursor-fix-xfc-NULL-pointer-dereference.patch b/external/meta-openembedded/meta-oe/recipes-graphics/x11vnc/files/src-cursor-fix-xfc-NULL-pointer-dereference.patch new file mode 100644 index 00000000..a571ba28 --- /dev/null +++ b/external/meta-openembedded/meta-oe/recipes-graphics/x11vnc/files/src-cursor-fix-xfc-NULL-pointer-dereference.patch @@ -0,0 +1,30 @@ +From 95a10ab64c2dbbec2c8dad91a5ffb73a0d68474b Mon Sep 17 00:00:00 2001 +From: Jonathan Liu <net147@gmail.com> +Date: Mon, 16 Mar 2020 20:04:06 +1100 +Subject: [PATCH] src/cursor: fix xfc NULL pointer dereference + +xfc->width and xfc->height for the XFixes cursor image returned from +XFixesGetCursorImage(dpy) are accessed without first checking that xfc +is not NULL. This can result in the server sometimes crashing when +moving a Google Chrome window. + +Fixes: 37c946191a0f ("Broken cursor bugfix for 64 bit systems (#49)") +Upstream-Status: Accepted +Signed-off-by: Jonathan Liu <net147@gmail.com> +--- + src/cursor.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/src/cursor.c b/src/cursor.c +index 39e73a6..74a08c6 100644 +--- a/src/cursor.c ++++ b/src/cursor.c +@@ -1311,7 +1311,7 @@ static int get_exact_cursor(int init) { + + /* retrieve the cursor info + pixels from server: */ + xfc = XFixesGetCursorImage(dpy); +- { ++ if (xfc) { + /* 2017-07-09, Stephan Fuhrmann: This fixes an implementation flaw for 64 bit systems. + * The XFixesCursorImage structure says xfc->pixels is (unsigned long*) in the structure, but + * the protocol spec says it's 32 bit per pixel |