[PATCH v1] ole32: Check invalid parameters for ReleaseStgMedium().
Chao Long
longchao at uniontech.com
Mon Sep 21 02:29:35 CDT 2020
The libcef call parameters is NULL for app Evernote.exe.
Wine-dbg>disas ReleaseStgMedium
0x7e240b48 ReleaseStgMedium [Z:\home\deepin\maintain5.0-stable\deepin-wine\dlls\ole32\ole2.c:2065] in ole32: lea ecx, [esp+0x4]
0x7e240b4c ReleaseStgMedium+0x4 [Z:\home\deepin\maintain5.0-stable\deepin-wine\dlls\ole32\ole2.c:2065] in ole32: and esp, 0xfffffff0
0x7e240b4f ReleaseStgMedium+0x7 [Z:\home\deepin\maintain5.0-stable\deepin-wine\dlls\ole32\ole2.c:2065] in ole32: push dword [ecx-0x4]
0x7e240b52 ReleaseStgMedium+0xa [Z:\home\deepin\maintain5.0-stable\deepin-wine\dlls\ole32\ole2.c:2065] in ole32: push ebp
0x7e240b53 ReleaseStgMedium+0xb [Z:\home\deepin\maintain5.0-stable\deepin-wine\dlls\ole32\ole2.c:2065] in ole32: mov ebp, esp
0x7e240b55 ReleaseStgMedium+0xd [Z:\home\deepin\maintain5.0-stable\deepin-wine\dlls\ole32\ole2.c:2065] in ole32: push ebx
0x7e240b56 ReleaseStgMedium+0xe [Z:\home\deepin\maintain5.0-stable\deepin-wine\dlls\ole32\ole2.c:2065] in ole32: push ecx
0x7e240b57 ReleaseStgMedium+0xf [Z:\home\deepin\maintain5.0-stable\deepin-wine\dlls\ole32\ole2.c:2065] in ole32: sub esp, 0x10
0x7e240b5a ReleaseStgMedium+0x12 [Z:\home\deepin\maintain5.0-stable\deepin-wine\dlls\ole32\ole2.c:2065] in ole32: mov ebx, ecx
Wine-dbg>info regs
Register dump:
CS:0023 SS:002b DS:002b ES:002b FS:0063 GS:006b
EIP:7e240b48 ESP:00300b68 EBP:00300b74 EFLAGS:00000202( - -- I - - - )
EAX:1b690930 EBX:098b6178 ECX:13cd8044 EDX:1b686001
ESI:13cd8040 EDI:090fcdd4
Wine-dbg>x 0x00300b6c
0x00000000
Wine-dbg>info break
Breakpoints:
1: y 0x7e240b48 ReleaseStgMedium [Z:\home\deepin\maintain5.0-stable\deepin-wine\dlls\ole32\ole2.c:2065] in ole32 (1)
No watchpoints
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