Package: qemu-system-x86
Version: 1.4.0+dfsg-1exp
Severity: normal
Dear Maintainer,
When using qemu's "-virtfs" option with "security_model=mapped-file" or
"security_model=mapped_xattr", calling chmod() on a block or character
special file in the guest results in a host segfault.
To reproduce:
qemu-system-x86_64 \
-virtfs local,path=tempdir,security_model=mapped-file,mount_tag=tag
sudo mount -t 9p -o trans=virtio tag /mnt
sudo mknod /mnt/test b 7 0
sudo chmod 0660 /mnt/test
I've reproduced this issue with hosts qemu-system-x86=1.4.0+dfsg-1exp and
qemu-kvm=1.1.2+dfsg-5 and guest linux-image-3.2.0-4-amd64=3.2.35-2.
Thanks!
Branen Salmon
-- System Information:
Debian Release: 7.0
APT prefers testing
APT policy: (900, 'testing'), (500, 'unstable')
Architecture: amd64 (x86_64)
Kernel: Linux 3.2.0-4-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages qemu-system-x86 depends on:
ii ipxe-qemu 1.0.0+git-20120202.f6840ba-3
ii libaio1 0.3.109-3
ii libasound2 1.0.25-4
ii libbluetooth3 4.99-2
ii libbrlapi0.5 4.4-8
ii libc6 2.13-38
ii libcurl3-gnutls 7.26.0-1+wheezy1
ii libglib2.0-0 2.33.12+really2.32.4-5
ii libgnutls26 2.12.20-4
ii libiscsi1 1.4.0-3
ii libjpeg8 8d-1
ii libncurses5 5.9-10
ii libpixman-1-0 0.26.0-4
ii libpng12-0 1.2.49-1
ii libpulse0 2.0-6
ii libsasl2-2 2.1.25.dfsg1-6
ii libsdl1.2debian 1.2.15-5
ii libseccomp1 1.0.1-2
ii libspice-server1 0.12.2-0nocelt2exp
ii libtinfo5 5.9-10
ii libusbredirparser1 0.6-1
ii libuuid1 2.20.1-5.3
ii libvdeplug2 2.3.2-4
ii libx11-6 2:1.5.0-1
ii libxen-4.1 4.1.4-2
ii libxenstore3.0 4.1.4-2
ii qemu-keymaps 1.4.0+dfsg-1exp
ii qemu-system-common 1.4.0+dfsg-1exp
ii seabios 1.7.2-1
ii vgabios 0.7a-3
ii zlib1g 1:1.2.7.dfsg-13
Versions of packages qemu-system-x86 recommends:
pn qemu-utils <none>
Versions of packages qemu-system-x86 suggests:
pn samba <none>
ii vde2 2.3.2-4
-- no debconf information
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