nixpkgs/pkgs/applications/virtualization/qemu/default.nix
Martin Weinelt 0c54b757e9
qemu: apply patch for CVE-2020-27617
An assert(3) failure issue was found in the networking helper functions of QEMU. It could occur in the eth_get_gso_type() routine, if a packet does not have a valid networking L3 protocol (ex. IPv4, IPv6) value. A guest user may use this flaw to crash the QEMU process on the host resulting in DoS scenario.

Fixes: CVE-2020-27617
2020-11-02 14:01:01 +01:00

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{ stdenv, fetchurl, fetchpatch, python, zlib, pkgconfig, glib
, perl, pixman, vde2, alsaLib, texinfo, flex
, bison, lzo, snappy, libaio, gnutls, nettle, curl
, makeWrapper
, attr, libcap, libcap_ng
, CoreServices, Cocoa, Hypervisor, rez, setfile
, numaSupport ? stdenv.isLinux && !stdenv.isAarch32, numactl
, seccompSupport ? stdenv.isLinux, libseccomp
, alsaSupport ? stdenv.lib.hasSuffix "linux" stdenv.hostPlatform.system && !nixosTestRunner
, pulseSupport ? !stdenv.isDarwin && !nixosTestRunner, libpulseaudio
, sdlSupport ? !stdenv.isDarwin && !nixosTestRunner, SDL2
, gtkSupport ? !stdenv.isDarwin && !xenSupport && !nixosTestRunner, gtk3, gettext, vte, wrapGAppsHook
, vncSupport ? !nixosTestRunner, libjpeg, libpng
, smartcardSupport ? !nixosTestRunner, libcacard
, spiceSupport ? !stdenv.isDarwin && !nixosTestRunner, spice, spice-protocol
, ncursesSupport ? !nixosTestRunner, ncurses
, usbredirSupport ? spiceSupport, usbredir
, xenSupport ? false, xen
, cephSupport ? false, ceph
, openGLSupport ? sdlSupport, mesa, epoxy, libdrm
, virglSupport ? openGLSupport, virglrenderer
, smbdSupport ? false, samba
, tpmSupport ? true
, hostCpuOnly ? false
, hostCpuTargets ? (if hostCpuOnly
then (stdenv.lib.optional stdenv.isx86_64 "i386-softmmu"
++ ["${stdenv.hostPlatform.qemuArch}-softmmu"])
else null)
, nixosTestRunner ? false
}:
with stdenv.lib;
let
audio = optionalString alsaSupport "alsa,"
+ optionalString pulseSupport "pa,"
+ optionalString sdlSupport "sdl,";
in
stdenv.mkDerivation rec {
version = "5.1.0";
pname = "qemu"
+ stdenv.lib.optionalString xenSupport "-xen"
+ stdenv.lib.optionalString hostCpuOnly "-host-cpu-only"
+ stdenv.lib.optionalString nixosTestRunner "-for-vm-tests";
src = fetchurl {
url= "https://download.qemu.org/qemu-${version}.tar.xz";
sha256 = "1rd41wwlvp0vpialjp2czs6i3lsc338xc72l3zkbb7ixjfslw5y9";
};
nativeBuildInputs = [ python python.pkgs.sphinx pkgconfig flex bison ]
++ optionals gtkSupport [ wrapGAppsHook ];
buildInputs =
[ zlib glib perl pixman
vde2 texinfo makeWrapper lzo snappy
gnutls nettle curl
]
++ optionals ncursesSupport [ ncurses ]
++ optionals stdenv.isDarwin [ CoreServices Cocoa Hypervisor rez setfile ]
++ optionals seccompSupport [ libseccomp ]
++ optionals numaSupport [ numactl ]
++ optionals pulseSupport [ libpulseaudio ]
++ optionals sdlSupport [ SDL2 ]
++ optionals gtkSupport [ gtk3 gettext vte ]
++ optionals vncSupport [ libjpeg libpng ]
++ optionals smartcardSupport [ libcacard ]
++ optionals spiceSupport [ spice-protocol spice ]
++ optionals usbredirSupport [ usbredir ]
++ optionals stdenv.isLinux [ alsaLib libaio libcap_ng libcap attr ]
++ optionals xenSupport [ xen ]
++ optionals cephSupport [ ceph ]
++ optionals openGLSupport [ mesa epoxy libdrm ]
++ optionals virglSupport [ virglrenderer ]
++ optionals smbdSupport [ samba ];
enableParallelBuilding = true;
outputs = [ "out" "ga" ];
patches = [
./no-etc-install.patch
./fix-qemu-ga.patch
./9p-ignore-noatime.patch
./CVE-2020-27617.patch
] ++ optional nixosTestRunner ./force-uid0-on-9p.patch
++ optionals stdenv.hostPlatform.isMusl [
(fetchpatch {
url = "https://raw.githubusercontent.com/alpinelinux/aports/2bb133986e8fa90e2e76d53369f03861a87a74ef/main/qemu/xattr_size_max.patch";
sha256 = "1xfdjs1jlvs99hpf670yianb8c3qz2ars8syzyz8f2c2cp5y4bxb";
})
(fetchpatch {
url = "https://raw.githubusercontent.com/alpinelinux/aports/2bb133986e8fa90e2e76d53369f03861a87a74ef/main/qemu/musl-F_SHLCK-and-F_EXLCK.patch";
sha256 = "1gm67v41gw6apzgz7jr3zv9z80wvkv0jaxd2w4d16hmipa8bhs0k";
})
./sigrtminmax.patch
(fetchpatch {
url = "https://raw.githubusercontent.com/alpinelinux/aports/2bb133986e8fa90e2e76d53369f03861a87a74ef/main/qemu/fix-sigevent-and-sigval_t.patch";
sha256 = "0wk0rrcqywhrw9hygy6ap0lfg314m9z1wr2hn8338r5gfcw75mav";
})
];
hardeningDisable = [ "stackprotector" ];
preConfigure = ''
unset CPP # intereferes with dependency calculation
'' + optionalString stdenv.hostPlatform.isMusl ''
NIX_CFLAGS_COMPILE+=" -D_LINUX_SYSINFO_H"
'';
configureFlags =
[ "--audio-drv-list=${audio}"
"--sysconfdir=/etc"
"--localstatedir=/var"
"--enable-docs"
"--enable-tools"
"--enable-guest-agent"
]
# disable sysctl check on darwin.
++ optional stdenv.isDarwin "--cpu=x86_64"
++ optional numaSupport "--enable-numa"
++ optional seccompSupport "--enable-seccomp"
++ optional smartcardSupport "--enable-smartcard"
++ optional spiceSupport "--enable-spice"
++ optional usbredirSupport "--enable-usb-redir"
++ optional (hostCpuTargets != null) "--target-list=${stdenv.lib.concatStringsSep "," hostCpuTargets}"
++ optional stdenv.isDarwin "--enable-cocoa"
++ optional stdenv.isDarwin "--enable-hvf"
++ optional stdenv.isLinux "--enable-linux-aio"
++ optional gtkSupport "--enable-gtk"
++ optional xenSupport "--enable-xen"
++ optional cephSupport "--enable-rbd"
++ optional openGLSupport "--enable-opengl"
++ optional virglSupport "--enable-virglrenderer"
++ optional tpmSupport "--enable-tpm"
++ optional smbdSupport "--smbd=${samba}/bin/smbd";
doCheck = false; # tries to access /dev
dontWrapGApps = true;
postFixup = ''
# the .desktop is both invalid and pointless
rm $out/share/applications/qemu.desktop
# copy qemu-ga (guest agent) to separate output
mkdir -p $ga/bin
cp $out/bin/qemu-ga $ga/bin/
'' + optionalString gtkSupport ''
# wrap GTK Binaries
for f in $out/bin/qemu-system-*; do
wrapGApp $f
done
'';
# Add a qemu-kvm wrapper for compatibility/convenience.
postInstall = ''
if [ -x $out/bin/qemu-system-${stdenv.hostPlatform.qemuArch} ]; then
makeWrapper $out/bin/qemu-system-${stdenv.hostPlatform.qemuArch} \
$out/bin/qemu-kvm \
--add-flags "\$([ -e /dev/kvm ] && echo -enable-kvm)"
fi
'';
passthru = {
qemu-system-i386 = "bin/qemu-system-i386";
};
meta = with stdenv.lib; {
homepage = "http://www.qemu.org/";
description = "A generic and open source machine emulator and virtualizer";
license = licenses.gpl2Plus;
maintainers = with maintainers; [ eelco ];
platforms = platforms.linux ++ platforms.darwin;
};
}