harryalex/kolibrios
1
0
Fork 0
forked from KolibriOS/kolibrios
Code Pull Requests Activity

Boxlib: fix write null pointer in editbox

Browse Source
This commit is contained in:
IgorA
2025-03-16 22:08:03 +02:00
committed by Gleb Zaharov
parent 72196f42de
commit bab6267412
1 changed files with 9 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
programs/develop/libraries/box_lib/trunk/editbox.asm
View File

@@ -601,6 +601,8 @@ edit_box_mouse:
jnz edit_box_mouse.mouse_left_button
and word ed_flags,ed_mouse_on_off
mov ebx,ed_mouse_variable
or ebx,ebx
jz edit_box_exit
push 0
pop dword [ebx]
jmp edit_box_exit
@@ -610,13 +612,14 @@ edit_box_mouse:
;--- ¡«®ª¨à®¢ª  ®â 䮪ãá¨à®¢ª¨ ¢ ¤àã£¨å ¡®ªá å ¯à¨ ¯®¯ ¤ ­¨¨ ­  ­¨å ªãàá®à 
;----------------------------------------------------------
mov eax,ed_mouse_variable
test eax,eax
jz @f ;¥á«¨ ed_mouse_variable=0
push dword [eax]
pop eax
test eax,eax
jz @f
jz @f ;¥á«¨ [ed_mouse_variable]=0
cmp eax,edi
je @f
jmp edit_box_mouse._blur
jne edit_box_mouse._blur
;----------------------------------------------------------
;--- ¯®«ãç ¥¬ ª®®à¤¨­ âë ¬ëè¨ ®â­®á¨â¥«ì­® 0 â.¥ ¢á¥© ®¡« á⨠íªà ­ 
;----------------------------------------------------------
@@ -672,8 +675,11 @@ edit_box_mouse._mshift:
or word ed_flags,ed_mouse_on
mov ed_pos,eax
mov ebx,ed_mouse_variable
or ebx,ebx
jz edit_box_mouse.mv_end
push edi
pop dword [ebx]
edit_box_mouse.mv_end:
bts word ed_flags,1
call edit_box_draw.bg
jmp edit_box_mouse.m_sh