Limit memory usage when running qemu-img convert
This patch is limiting the memory address space to 1 GiB when invoking qemu-img convert. The qemu-img command can be exploited so we better play on the safe side (See: bug #1449062). Change-Id: I2088f74b32d1392310c569cfaa7fd368cb737421 Closes-Bug: #1657808
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ironic_python_agent/shell
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@ -39,6 +39,9 @@ log "Erasing existing GPT and MBR data structures from ${DEVICE}"
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sgdisk -Z $DEVICE
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log "Imaging $IMAGEFILE to $DEVICE"
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# limit the memory usage for qemu-img to 1 GiB
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ulimit -v 1048576
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qemu-img convert -t directsync -O host_device $IMAGEFILE $DEVICE
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sync
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@ -0,0 +1,5 @@
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---
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fixes:
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- |
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Limits the memory usage of ``qemu-img convert`` command to 1 GiB to
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avoid it from causing the host machine to fail due not enough ram.
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