Mercurial > vim
view pixmaps/quest.xpm @ 33829:f0132690cdf9 v9.0.2129
patch 9.0.2129: [security]: use-after-free in call_dfunc()
Commit: https://github.com/vim/vim/commit/a555069b7d790abedc60edc505bd35bda257949d
Author: mityu <mityu.mail@gmail.com>
Date: Sat Nov 25 15:41:20 2023 +0100
patch 9.0.2129: [security]: use-after-free in call_dfunc()
Problem: [security]: use-after-free in call_dfunc()
Solution: Refresh dfunc pointer
closes: #13571
This Commit fixes a SEGV caused by a use-after-free bug in call_dfunc().
When calling check_ufunc_arg_types() from the call_dfunc() it may cause
def functions to be re-compiled and if there are too many def functions,
the def_functions array will be re-allocated. Which means, that the
dfunc pointer in call_dfunc() now starts pointing to freed memory.
So we need to reset the dfunc pointer after calling
check_ufunc_arg_types().
Let's also add a test, to ensure we do not regress.
Signed-off-by: mityu <mityu.mail@gmail.com>
Signed-off-by: Yegappan Lakshmanan <yegappan@yahoo.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
| author | Christian Brabandt <cb@256bit.org> |
|---|---|
| date | Sat, 25 Nov 2023 16:00:03 +0100 |
| parents | 3fc0f57ecb91 |
| children |
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/* XPM */ static char * quest_xpm[] = { /* width height ncolors cpp [x_hot y_hot] */ "34 34 4 1 0 0", /* colors */ " s none m none c none", ". s bottomShadowColor m black c #5D6069", "X s iconColor2 m white c #FFFFFF", "o s iconColor1 m black c #000000", /* pixels */ " ", " ........ ", " ...XXXXXXXX... ", " ..XXXXXXXXXXXXXX.. ", " .XXXXXXXXXXXXXXXXXX. ", " .XXXXXXXXoooooXXXXXXXo ", " .XXXXXXXXoXXXXooXXXXXXXo ", " .XXXXXXXXoooXXXXooXXXXXXXo ", " .XXXXXXXXXooooXXXooXXXXXXXXo ", " .XXXXXXXXXXooXXXoooXXXXXXXXo. ", " .XXXXXXXXXXXXXXXooooXXXXXXXXXo. ", " .XXXXXXXXXXXXXXooooXXXXXXXXXXo. ", " .XXXXXXXXXXXXXoooooXXXXXXXXXXo.. ", " .XXXXXXXXXXXXoooooXXXXXXXXXXXo.. ", " .XXXXXXXXXXXXoooXXXXXXXXXXXXXo.. ", " .XXXXXXXXXXXXooXXXXXXXXXXXXXXo.. ", " .XXXXXXXXXXXXoXXXXXXXXXXXXXXXo.. ", " .XXXXXXXXXXXoXXXXXXXXXXXXXXo... ", " .XXXXXXXXXXXXXXXXXXXXXXXXXXo... ", " .XXXXXXXXXXooXXXXXXXXXXXXo... ", " oXXXXXXXXooooXXXXXXXXXXo.... ", " oXXXXXXXXooXXXXXXXXXXo.... ", " oXXXXXXXXXXXXXXXXXXo.... ", " ooXXXXXXXXXXXXXXoo.... ", " .oooXXXXXXXXooo..... ", " ...oooXXXXo....... ", " ....oXXXo..... ", " .oXXXo.. ", " oXXo.. ", " oXo.. ", " oo.. ", " ... ", " .. ", " "};