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Check return value of vboxDumpVideo

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Error out on allocation failures instead of creating an incomplete
definition.

Fixes a possible crash when def->nvideos is 1, but def->videos is NULL.
This commit is contained in:
Ján Tomko 2016-02-05 14:05:07 +01:00
parent e11aa74933
commit 2ea694053f
1 changed files with 30 additions and 25 deletions
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55
src/vbox/vbox_common.c
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@ -3258,38 +3258,42 @@ vboxDumpIDEHDDsNew(virDomainDefPtr def, vboxGlobalData *data, IMachine *machine)
}
}
static void
static int
vboxDumpVideo(virDomainDefPtr def, vboxGlobalData *data ATTRIBUTE_UNUSED,
IMachine *machine)
{
/* dump video options vram/2d/3d/directx/etc. */
/* the default is: vram is 8MB, One monitor, 3dAccel Off */
PRUint32 VRAMSize = 8;
PRUint32 monitorCount = 1;
PRBool accelerate3DEnabled = PR_FALSE;
PRBool accelerate2DEnabled = PR_FALSE;
/* Currently supports only one graphics card */
if (VIR_ALLOC_N(def->videos, 1) < 0)
return -1;
def->nvideos = 1;
if (VIR_ALLOC_N(def->videos, def->nvideos) >= 0) {
if (VIR_ALLOC(def->videos[0]) >= 0) {
/* the default is: vram is 8MB, One monitor, 3dAccel Off */
PRUint32 VRAMSize = 8;
PRUint32 monitorCount = 1;
PRBool accelerate3DEnabled = PR_FALSE;
PRBool accelerate2DEnabled = PR_FALSE;
gVBoxAPI.UIMachine.GetVRAMSize(machine, &VRAMSize);
gVBoxAPI.UIMachine.GetMonitorCount(machine, &monitorCount);
gVBoxAPI.UIMachine.GetAccelerate3DEnabled(machine, &accelerate3DEnabled);
if (gVBoxAPI.accelerate2DVideo)
gVBoxAPI.UIMachine.GetAccelerate2DVideoEnabled(machine, &accelerate2DEnabled);
if (VIR_ALLOC(def->videos[0]) < 0)
return -1;
def->videos[0]->type = VIR_DOMAIN_VIDEO_TYPE_VBOX;
def->videos[0]->vram = VRAMSize * 1024;
def->videos[0]->heads = monitorCount;
if (VIR_ALLOC(def->videos[0]->accel) >= 0) {
def->videos[0]->accel->accel3d = accelerate3DEnabled ?
VIR_TRISTATE_BOOL_YES : VIR_TRISTATE_BOOL_NO;
def->videos[0]->accel->accel2d = accelerate2DEnabled ?
VIR_TRISTATE_BOOL_YES : VIR_TRISTATE_BOOL_NO;
}
}
}
gVBoxAPI.UIMachine.GetVRAMSize(machine, &VRAMSize);
gVBoxAPI.UIMachine.GetMonitorCount(machine, &monitorCount);
gVBoxAPI.UIMachine.GetAccelerate3DEnabled(machine, &accelerate3DEnabled);
if (gVBoxAPI.accelerate2DVideo)
gVBoxAPI.UIMachine.GetAccelerate2DVideoEnabled(machine, &accelerate2DEnabled);
def->videos[0]->type = VIR_DOMAIN_VIDEO_TYPE_VBOX;
def->videos[0]->vram = VRAMSize * 1024;
def->videos[0]->heads = monitorCount;
if (VIR_ALLOC(def->videos[0]->accel) < 0)
return -1;
def->videos[0]->accel->accel3d = accelerate3DEnabled ?
VIR_TRISTATE_BOOL_YES : VIR_TRISTATE_BOOL_NO;
def->videos[0]->accel->accel2d = accelerate2DEnabled ?
VIR_TRISTATE_BOOL_YES : VIR_TRISTATE_BOOL_NO;
return 0;
}
static void
@ -3967,7 +3971,8 @@ static char *vboxDomainGetXMLDesc(virDomainPtr dom, unsigned int flags)
* so locatime is always true here */
def->clock.offset = VIR_DOMAIN_CLOCK_OFFSET_LOCALTIME;
vboxDumpVideo(def, data, machine);
if (vboxDumpVideo(def, data, machine) < 0)
goto cleanup;
vboxDumpDisplay(def, data, machine);
/* As the medium interface changed from 3.0 to 3.1.