[Bug 49488] New: uninitialized bytes in server call from ntdll/server_write_file
WineHQ Bugzilla
wine-bugs at winehq.org
Tue Jun 30 07:12:25 CDT 2020
https://bugs.winehq.org/show_bug.cgi?id=49488
Bug ID: 49488
Summary: uninitialized bytes in server call from
ntdll/server_write_file
Product: Wine
Version: 5.11
Hardware: x86
OS: Linux
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: ntdll
Assignee: wine-bugs at winehq.org
Reporter: jeffersoncarpenter2 at gmail.com
Distribution: ---
Created attachment 67607
--> https://bugs.winehq.org/attachment.cgi?id=67607
Configure output.
Steps to reproduce
* Build wine (currently ec9e556d31). Attached my configure output. See for
configure flags.
* Build 'int main() { return 0; }' under i686-w64-mingw-gcc
* Run under valgrind. Valgrind output attached.
The first valgrind error is:
==1472== Syscall param writev(vector[...]) points to uninitialised byte(s)
==1472== at 0x432C2A3: __writev (writev.c:26)
==1472== by 0x432C2A3: writev (writev.c:24)
==1472== by 0x485A099: send_request (server.c:221)
==1472== by 0x485A1DB: server_call_unlocked (server.c:281)
==1472== by 0x485A236: wine_server_call (server.c:297)
==1472== by 0x484B69E: server_write_file (file.c:4706)
==1472== by 0x484CB30: NtWriteFile (file.c:5272)
==1472== by 0x7BC500A8: NtWriteFile (file.c:176)
==1472== by 0x5E267A7: rpcrt4_conn_np_write (rpc_transport.c:415)
==1472== by 0x5E1BF85: rpcrt4_conn_write (rpc_binding.h:197)
==1472== by 0x5E1DB8C: RPCRT4_SendWithAuth (rpc_message.c:850)
==1472== by 0x5E1E9B7: RPCRT4_Send (rpc_message.c:1249)
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