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Ticket Resolution Summary Owner Reporter
#19286 fixed Filename changes incorrectly in the File location field when creating Virtual Hard Disk gombara rocket_
Description

Hello, VirtualBox 6.1.2 r135662 (Qt5.6.2) under Windows 10 (1909) host. When creating new Virtual Hard Disk for virtual machine, there are path and filename set by default in File location field. Drive:\path\filename.vdi. If you click Hard disk file type radio button(s), the extension of the filename in File location field does not change, as expected; instead of that it appends to the old extension, every time you click on different file type radiobuttons (VHD, HDD, etc). Please see attached screenshot for understanding clearly.

#19610 fixed Null pointer dereference in vmsvgaR3PortReportMonitorPositions when using VboxVGA graphics device => fixed in svn/6.1.x x>10 gombara abacabadabacaba
Description

I'm using VirtualBox 6.1.8 with 64-bit Debian both as a host and as a guest OS.

Under specific conditions, VirtualBox crashes during guest OS boot. I found the following necessary conditions for the crash to occur:

  • Graphics device: VboxVGA.
  • Guest additions version 6.1.8 must be installed in the guest. With earlier versions (such as 6.1.6), the bug doesn't reproduce.

Here is a stack trace of the crash:

#0 vmsvgaR3PortReportMonitorPositions (pInterface=0x7fb40404a198, cPositions=<optimized out>, pPosition=0x7fb404da601c)

at /build/virtualbox-wbVDsa/virtualbox-6.1.8-dfsg/src/VBox/Devices/Graphics/DevVGA-SVGA.cpp:857

#1 0x00007fb424276fd3 in Display::i_handleUpdateMonitorPositions (this=0x7fb4000023c0, cPositions=1, pPosition=0x7fb404da601c)

at /build/virtualbox-wbVDsa/virtualbox-6.1.8-dfsg/src/VBox/Main/src-client/DisplayImpl.cpp:1296

#2 0x00007fb424296e98 in vmmdevUpdateMonitorPositions (pInterface=<optimized out>, cPositions=<optimized out>, pPositions=<optimized out>)

at /build/virtualbox-wbVDsa/virtualbox-6.1.8-dfsg/src/VBox/Main/include/ConsoleImpl.h:146

#3 0x00007fb3eb043d69 in vmmdevRequestHandler (pDevIns=<optimized out>, pvUser=<optimized out>, offPort=<optimized out>, u32=<optimized out>, cb=<optimized out>)

at /build/virtualbox-wbVDsa/virtualbox-6.1.8-dfsg/src/VBox/Devices/VMMDev/VMMDev.cpp:2022

#4 0x00007fb4246a46b0 in IOMIOPortWrite (pVM=0x7fb404c3e000, pVCpu=pVCpu@entry=0x7fb404c29000, Port=<optimized out>, u32Value=1037959912, cbValue=4)

at /build/virtualbox-wbVDsa/virtualbox-6.1.8-dfsg/src/VBox/VMM/VMMAll/IOMAll.cpp:414

#5 0x00007fb4245a4172 in IOMR3ProcessForceFlag (pVM=pVM@entry=0x7fb404c3e000, pVCpu=pVCpu@entry=0x7fb404c29000, rcStrict=2622)

at /build/virtualbox-wbVDsa/virtualbox-6.1.8-dfsg/src/VBox/VMM/VMMR3/IOM.cpp:386

#6 0x00007fb42459ab55 in emR3HighPriorityPostForcedActions (pVM=pVM@entry=0x7fb404c3e000, pVCpu=pVCpu@entry=0x7fb404c29000, rc=<optimized out>)

at /build/virtualbox-wbVDsa/virtualbox-6.1.8-dfsg/src/VBox/VMM/VMMR3/EM.cpp:1469

#7 0x00007fb42459e4e2 in emR3HmExecute (pVM=pVM@entry=0x7fb404c3e000, pVCpu=pVCpu@entry=0x7fb404c29000, pfFFDone=pfFFDone@entry=0x7fb404d4bdf7)

at /build/virtualbox-wbVDsa/virtualbox-6.1.8-dfsg/src/VBox/VMM/VMMR3/EMHM.cpp:437

#8 0x00007fb42459cbc9 in EMR3ExecuteVM (pVM=<optimized out>, pVCpu=<optimized out>) at /build/virtualbox-wbVDsa/virtualbox-6.1.8-dfsg/src/VBox/VMM/VMMR3/EM.cpp:2658 #9 0x00007fb4245fd730 in vmR3EmulationThreadWithId (hThreadSelf=<optimized out>, pUVCpu=0x7fb404d536a0, idCpu=0)

at /build/virtualbox-wbVDsa/virtualbox-6.1.8-dfsg/src/VBox/VMM/VMMR3/VMEmt.cpp:237

#10 0x00007fb4361b5494 in rtThreadMain (pThread=pThread@entry=0x7fb3e4006370, NativeThread=NativeThread@entry=140411151894272, pszThreadName=pszThreadName@entry=0x7fb3e4006c50 "EMT")

at /build/virtualbox-wbVDsa/virtualbox-6.1.8-dfsg/src/VBox/Runtime/common/misc/thread.cpp:727

#11 0x00007fb43626d1be in rtThreadNativeMain (pvArgs=0x7fb3e4006370) at /build/virtualbox-wbVDsa/virtualbox-6.1.8-dfsg/src/VBox/Runtime/r3/posix/thread-posix.cpp:362 #12 0x00007fb43654df27 in start_thread (arg=<optimized out>) at pthread_create.c:479 #13 0x00007fb43647a31f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

During the execution of vmsvgaR3PortReportMonitorPositions function, the value of pSVGAState variable is a null pointer. The crash happens when the pointer is dereferenced.

#19649 fixed VBoy 6.1.10 crash on login with Win7 host, Debian guest gombara Nils
Description

This crash happened on 6.1.8 and 6.1.10, it worked previously on the 6.0 series (last tested 6.0.18 or maybe 20?). Bootup is fine, login screen (ldm) comes up, after entering the username and password the login prompt disappears, and after a while the crash screen shows up. The latest additions are installed. Logs attached. Please let me know what I can do to debug. Thanks!

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