August 2024 - Devel - libvirt List Archives

[PATCH 0/4] vircommand: Make FD closing more robust on __APPLE__
by Michal Privoznik 13 Sep '24

13 Sep '24

Found these on an old branch. Might as well post them. Michal Prívozník (4): vircommand: Drop unused arguments from virCommandMassCloseGetFDs*() vircommand: Isolate FD dir parsing into a separate function vircommand: Make sysconf(_SC_OPEN_MAX) failure non-fatal vircommand: Parse /dev/fd on *BSD-like systems when looking for opened FDs src/util/vircommand.c | 43 ++++++++++++++++++------------------------- 1 file changed, 18 insertions(+), 25 deletions(-) -- 2.44.2

4 14

[PATCH 00/14] Introduce fuzzing of XML formats
by Rayhan Faizel 04 Sep '24

04 Sep '24

This series introduces multiple fuzzers developed as part of Google Summer of Code 2024. We adopt a structure-aware fuzzing approach to fuzz libvirt XML formats. The fuzzing methodology makes use of libFuzzer and libprotobuf-mutator. The fuzzers work by mutating intermediate protobufs and converting them to XML. The fuzzing method in use requires inclusion of C++ sources. However, C++ compilation will be done only if '-Dfuzz' is enabled. Otherwise, libvirt will compile normally as before. The fuzzing method works only on clang compilers which support libFuzzer. This series introduces a total of six fuzzers: 1. QEMU XML domain 2. QEMU XML hotplug 3. CH XML domain 4. VMX XML domain 5. libXL XML domain 6. NWFilter XML In terms of the number of crashes discovered, QEMU XML domain, QEMU XML hotplug and libXL fuzzers are the most interesting ones. The setup process is documented at the end of the series (patch 14). Rayhan Faizel (14): src: Tweak source code to allow C++ compilation meson: Add support for clang/LLVM coverage instrumentation tests: Export handlers for fake secondary drivers schemas: Refactor relaxNG schema to ease protobuf conversion scripts: Add script to convert relaxNG to protobuf fuzz: Implement base fuzzing setup for XML domain fuzz: Implement QEMU XML domain fuzzer fuzz: Implement QEMU XML hotplug fuzzer ch: Remove unused variables fuzz: Implement CH XML domain fuzzer fuzz: Implement VMX XML domain fuzzer fuzz: Implement libXL XML domain fuzzer fuzz: Implement NWFilter XML fuzzer docs: Document the fuzzers build-aux/syntax-check.mk | 1 + docs/kbase/index.rst | 3 + docs/kbase/internals/meson.build | 1 + docs/kbase/internals/xml-fuzzing.rst | 120 ++++ meson.build | 55 ++ meson_options.txt | 5 +- scripts/meson.build | 1 + scripts/relaxng-to-proto.py | 521 ++++++++++++++++++ src/ch/ch_monitor.c | 2 +- src/ch/ch_monitor.h | 3 + src/ch/ch_process.c | 2 - src/conf/domain_conf.c | 18 +- src/conf/domain_conf.h | 6 +- src/conf/netdev_vport_profile_conf.c | 2 +- src/conf/schemas/basictypes.rng | 20 +- src/conf/schemas/domaincommon.rng | 11 +- src/conf/schemas/networkcommon.rng | 14 +- src/qemu/qemu_hotplug.c | 4 + src/qemu/qemu_monitor.c | 6 +- src/qemu/qemu_monitor.h | 2 +- src/util/virfile.h | 2 +- src/util/virnetdev.h | 12 +- src/util/virnetdevip.h | 2 +- src/util/virnetdevmacvlan.h | 2 +- src/util/virnetdevvportprofile.c | 2 +- src/util/virnetdevvportprofile.h | 2 +- src/util/virnvme.c | 4 +- src/util/virnvme.h | 2 +- src/util/viruuid.h | 2 +- tests/commandhelper.c | 8 +- tests/fuzz/README.rst | 131 +++++ tests/fuzz/ch_xml_domain_fuzz.cc | 157 ++++++ tests/fuzz/libxl_xml_domain_fuzz.cc | 159 ++++++ tests/fuzz/llvm_symbolizer_wrapper.c | 11 + tests/fuzz/meson.build | 183 ++++++ tests/fuzz/proto_custom_datatypes.cc | 234 ++++++++ tests/fuzz/proto_custom_datatypes.h | 30 + tests/fuzz/proto_header_common.h | 51 ++ tests/fuzz/proto_to_xml.cc | 277 ++++++++++ tests/fuzz/proto_to_xml.h | 39 ++ tests/fuzz/protos/meson.build | 46 ++ tests/fuzz/protos/xml_datatypes.proto | 93 ++++ tests/fuzz/protos/xml_domain.proto | 62 +++ tests/fuzz/protos/xml_domain_disk_only.proto | 21 + .../protos/xml_domain_interface_only.proto | 21 + tests/fuzz/protos/xml_hotplug.proto | 38 ++ tests/fuzz/protos/xml_nwfilter.proto | 9 + tests/fuzz/qemu_xml_domain_fuzz.cc | 277 ++++++++++ tests/fuzz/qemu_xml_hotplug_fuzz.cc | 340 ++++++++++++ tests/fuzz/run_fuzz.in | 142 +++++ tests/fuzz/vmx_xml_domain_fuzz.cc | 208 +++++++ tests/fuzz/xml_nwfilter_fuzz.cc | 149 +++++ tests/meson.build | 5 + tests/qemumonitortestutils.c | 48 ++ tests/qemumonitortestutils.h | 6 + tests/qemuxmlconftest.c | 249 --------- tests/testutilsqemu.c | 256 +++++++++ tests/testutilsqemu.h | 57 ++ 58 files changed, 3832 insertions(+), 302 deletions(-) create mode 100644 docs/kbase/internals/xml-fuzzing.rst create mode 100644 scripts/relaxng-to-proto.py create mode 100644 tests/fuzz/README.rst create mode 100644 tests/fuzz/ch_xml_domain_fuzz.cc create mode 100644 tests/fuzz/libxl_xml_domain_fuzz.cc create mode 100644 tests/fuzz/llvm_symbolizer_wrapper.c create mode 100644 tests/fuzz/meson.build create mode 100644 tests/fuzz/proto_custom_datatypes.cc create mode 100644 tests/fuzz/proto_custom_datatypes.h create mode 100644 tests/fuzz/proto_header_common.h create mode 100644 tests/fuzz/proto_to_xml.cc create mode 100644 tests/fuzz/proto_to_xml.h create mode 100644 tests/fuzz/protos/meson.build create mode 100644 tests/fuzz/protos/xml_datatypes.proto create mode 100644 tests/fuzz/protos/xml_domain.proto create mode 100644 tests/fuzz/protos/xml_domain_disk_only.proto create mode 100644 tests/fuzz/protos/xml_domain_interface_only.proto create mode 100644 tests/fuzz/protos/xml_hotplug.proto create mode 100644 tests/fuzz/protos/xml_nwfilter.proto create mode 100644 tests/fuzz/qemu_xml_domain_fuzz.cc create mode 100644 tests/fuzz/qemu_xml_hotplug_fuzz.cc create mode 100644 tests/fuzz/run_fuzz.in create mode 100644 tests/fuzz/vmx_xml_domain_fuzz.cc create mode 100644 tests/fuzz/xml_nwfilter_fuzz.cc -- 2.34.1

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[PATCH] spec: Fix dtrace BuildRequires on fedora 41+
by Cole Robinson 04 Sep '24

04 Sep '24

/usr/bin/dtrace has been split from `systemtap-sdt-devel` into `systemtap-sdt-dtrace` It's forward and backward compatible to require the dtrace binary directly. We still need the latter dep though, for sdt.h in generated libvirt_probes.h Signed-off-by: Cole Robinson <crobinso(a)redhat.com> --- libvirt.spec.in | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libvirt.spec.in b/libvirt.spec.in index 29101e74fe..86af13a861 100644 --- a/libvirt.spec.in +++ b/libvirt.spec.in @@ -425,8 +425,8 @@ BuildRequires: libcurl-devel BuildRequires: libwsman-devel >= 2.6.3 %endif BuildRequires: audit-libs-devel -# we need /usr/sbin/dtrace BuildRequires: systemtap-sdt-devel +BuildRequires: /usr/bin/dtrace # For mount/umount in FS driver BuildRequires: util-linux # For showmount in FS driver (netfs discovery) -- 2.46.0

2 1

Changing permissions for /var/lib/libvirt/images/
by Lee Garrett 02 Sep '24

02 Sep '24

Hi everyone, while using virt-v2v I've hit an issue [0], where essentially virt-v2v fails as non-root user, due to /var/lib/libvirt/images/ belonging to root:root. I proposed to change the ownership to root:libvirt, and permission bits to ug=rwx,o=x, as that would allow users of the libvirt group to use virt-v2v without running as root. My questions here are: Are there any downsides to this? AFAICS users of the libvirt group are allowed changed images via the libvirt API anyway, so from the security standpoint there should be no change. And if there are none, can we change the upstream default to those permissions? Thanks in advance, Lee P.S.: Keep me CCed, I'm off-list. [0] downstream Debian bug with more details: https://bugs.debian.org/1054230

2 1

[PATCH] cpu_map: Add SierraForest CPU model
by Tim Wiederhake 30 Aug '24

30 Aug '24

This was added in qemu commit 6e82d3b6220777667968a04c87e1667f164ebe88. Signed-off-by: Tim Wiederhake <twiederh(a)redhat.com> --- src/cpu_map/index.xml | 1 + src/cpu_map/x86_SierraForest.xml | 177 ++++++++++++++++++ .../domaincapsdata/qemu_9.1.0-q35.x86_64.xml | 1 + .../domaincapsdata/qemu_9.1.0-tcg.x86_64.xml | 1 + tests/domaincapsdata/qemu_9.1.0.x86_64.xml | 1 + 5 files changed, 181 insertions(+) create mode 100644 src/cpu_map/x86_SierraForest.xml diff --git a/src/cpu_map/index.xml b/src/cpu_map/index.xml index 39bad07f11..15cb63afe5 100644 --- a/src/cpu_map/index.xml +++ b/src/cpu_map/index.xml @@ -58,6 +58,7 @@ <include filename='x86_Snowridge.xml'/> <include filename='x86_SapphireRapids.xml'/> <include filename='x86_GraniteRapids.xml'/> + <include filename='x86_SierraForest.xml'/>  <include filename='x86_athlon.xml'/> diff --git a/src/cpu_map/x86_SierraForest.xml b/src/cpu_map/x86_SierraForest.xml new file mode 100644 index 0000000000..3fc3049be1 --- /dev/null +++ b/src/cpu_map/x86_SierraForest.xml @@ -0,0 +1,177 @@ +<cpus> + <model name='SierraForest'> + <decode host='on' guest='on'/> + <signature family='6' model='175'/> + <vendor name='Intel'/> + <feature name='3dnowprefetch'/> + <feature name='abm'/> + <feature name='adx'/> + <feature name='aes'/> + <feature name='apic'/> + <feature name='arat'/> + <feature name='arch-capabilities'/> + <feature name='avx'/> + <feature name='avx-ifma'/> + <feature name='avx-ne-convert'/> + <feature name='avx-vnni'/> + <feature name='avx-vnni-int8'/> + <feature name='avx2'/> + <feature name='bmi1'/> + <feature name='bmi2'/> + <feature name='bus-lock-detect'/> + <feature name='clflush'/> + <feature name='clflushopt'/> + <feature name='clwb'/> + <feature name='cmov'/> + <feature name='cmpccxadd'/> + <feature name='cx16'/> + <feature name='cx8'/> + <feature name='de'/> + <feature name='erms'/> + <feature name='f16c'/> + <feature name='fbsdp-no'/> + <feature name='fma'/> + <feature name='fpu'/> + <feature name='fsgsbase'/> + <feature name='fsrm'/> + <feature name='fsrs'/> + <feature name='fxsr'/> + <feature name='gfni'/> + <feature name='ibrs-all'/> + <feature name='invpcid'/> + <feature name='lahf_lm'/> + <feature name='lm'/> + <feature name='mca'/> + <feature name='mcdt-no'/> + <feature name='mce'/> + <feature name='mds-no'/> + <feature name='mmx'/> + <feature name='movbe'/> + <feature name='msr'/> + <feature name='mtrr'/> + <feature name='nx'/> + <feature name='pae'/> + <feature name='pat'/> + <feature name='pbrsb-no'/> + <feature name='pcid'/> + <feature name='pclmuldq'/> + <feature name='pdpe1gb'/> + <feature name='pge'/> + <feature name='pku'/> + <feature name='pni'/> + <feature name='popcnt'/> + <feature name='pschange-mc-no'/> + <feature name='psdp-no'/> + <feature name='pse'/> + <feature name='pse36'/> + <feature name='rdctl-no'/> + <feature name='rdpid'/> + <feature name='rdrand'/> + <feature name='rdseed'/> + <feature name='rdtscp'/> + <feature name='sbdr-ssdp-no'/> + <feature name='sep'/> + <feature name='serialize'/> + <feature name='sha-ni'/> + <feature name='skip-l1dfl-vmentry'/> + <feature name='smap'/> + <feature name='smep'/> + <feature name='spec-ctrl'/> + <feature name='ssbd'/> + <feature name='sse'/> + <feature name='sse2'/> + <feature name='sse4.1'/> + <feature name='sse4.2'/> + <feature name='ssse3'/> + <feature name='syscall'/> + <feature name='tsc'/> + <feature name='tsc-deadline'/> + <feature name='umip'/> + <feature name='vaes'/> + <feature name='vme'/> + <feature name='vmx-activity-hlt'/> + <feature name='vmx-apicv-register'/> + <feature name='vmx-apicv-vid'/> + <feature name='vmx-apicv-x2apic'/> + <feature name='vmx-apicv-xapic'/> + <feature name='vmx-cr3-load-noexit'/> + <feature name='vmx-cr3-store-noexit'/> + <feature name='vmx-cr8-load-exit'/> + <feature name='vmx-cr8-store-exit'/> + <feature name='vmx-desc-exit'/> + <feature name='vmx-entry-ia32e-mode'/> + <feature name='vmx-entry-load-efer'/> + <feature name='vmx-entry-load-pat'/> + <feature name='vmx-entry-load-perf-global-ctrl'/> + <feature name='vmx-entry-noload-debugctl'/> + <feature name='vmx-ept'/> + <feature name='vmx-ept-1gb'/> + <feature name='vmx-ept-2mb'/> + <feature name='vmx-ept-execonly'/> + <feature name='vmx-ept-wb'/> + <feature name='vmx-eptad'/> + <feature name='vmx-eptp-switching'/> + <feature name='vmx-exit-ack-intr'/> + <feature name='vmx-exit-load-efer'/> + <feature name='vmx-exit-load-pat'/> + <feature name='vmx-exit-load-perf-global-ctrl'/> + <feature name='vmx-exit-nosave-debugctl'/> + <feature name='vmx-exit-save-efer'/> + <feature name='vmx-exit-save-pat'/> + <feature name='vmx-exit-save-preemption-timer'/> + <feature name='vmx-flexpriority'/> + <feature name='vmx-hlt-exit'/> + <feature name='vmx-ins-outs'/> + <feature name='vmx-intr-exit'/> + <feature name='vmx-invept'/> + <feature name='vmx-invept-all-context'/> + <feature name='vmx-invept-single-context'/> + <feature name='vmx-invlpg-exit'/> + <feature name='vmx-invpcid-exit'/> + <feature name='vmx-invvpid'/> + <feature name='vmx-invvpid-all-context'/> + <feature name='vmx-invvpid-single-addr'/> + <feature name='vmx-invvpid-single-context'/> + <feature name='vmx-invvpid-single-context-noglobals'/> + <feature name='vmx-io-bitmap'/> + <feature name='vmx-io-exit'/> + <feature name='vmx-monitor-exit'/> + <feature name='vmx-movdr-exit'/> + <feature name='vmx-msr-bitmap'/> + <feature name='vmx-mtf'/> + <feature name='vmx-mwait-exit'/> + <feature name='vmx-nmi-exit'/> + <feature name='vmx-page-walk-4'/> + <feature name='vmx-pause-exit'/> + <feature name='vmx-pml'/> + <feature name='vmx-posted-intr'/> + <feature name='vmx-preemption-timer'/> + <feature name='vmx-rdpmc-exit'/> + <feature name='vmx-rdrand-exit'/> + <feature name='vmx-rdseed-exit'/> + <feature name='vmx-rdtsc-exit'/> + <feature name='vmx-rdtscp-exit'/> + <feature name='vmx-secondary-ctls'/> + <feature name='vmx-shadow-vmcs'/> + <feature name='vmx-store-lma'/> + <feature name='vmx-true-ctls'/> + <feature name='vmx-tsc-offset'/> + <feature name='vmx-unrestricted-guest'/> + <feature name='vmx-vintr-pending'/> + <feature name='vmx-vmfunc'/> + <feature name='vmx-vmwrite-vmexit-fields'/> + <feature name='vmx-vnmi'/> + <feature name='vmx-vnmi-pending'/> + <feature name='vmx-vpid'/> + <feature name='vmx-wbinvd-exit'/> + <feature name='vmx-xsaves'/> + <feature name='vpclmulqdq'/> + <feature name='wbnoinvd'/> + <feature name='x2apic'/> + <feature name='xgetbv1'/> + <feature name='xsave'/> + <feature name='xsavec'/> + <feature name='xsaveopt'/> + <feature name='xsaves'/> + </model> +</cpus> diff --git a/tests/domaincapsdata/qemu_9.1.0-q35.x86_64.xml b/tests/domaincapsdata/qemu_9.1.0-q35.x86_64.xml index ef364621c4..5db1b2486c 100644 --- a/tests/domaincapsdata/qemu_9.1.0-q35.x86_64.xml +++ b/tests/domaincapsdata/qemu_9.1.0-q35.x86_64.xml @@ -98,6 +98,7 @@ <model usable='no' vendor='Intel'>Skylake-Client-noTSX-IBRS</model> <model usable='no' vendor='Intel'>Skylake-Client-IBRS</model> <model usable='no' vendor='Intel'>Skylake-Client</model> + <model usable='no' vendor='Intel'>SierraForest</model> <model usable='no' vendor='Intel'>SapphireRapids</model> <model usable='no' vendor='Intel'>SandyBridge-IBRS</model> <model usable='yes' vendor='Intel'>SandyBridge</model> diff --git a/tests/domaincapsdata/qemu_9.1.0-tcg.x86_64.xml b/tests/domaincapsdata/qemu_9.1.0-tcg.x86_64.xml index 2415f76f92..3aa47fa247 100644 --- a/tests/domaincapsdata/qemu_9.1.0-tcg.x86_64.xml +++ b/tests/domaincapsdata/qemu_9.1.0-tcg.x86_64.xml @@ -93,6 +93,7 @@ <model usable='no' vendor='Intel'>Skylake-Client-noTSX-IBRS</model> <model usable='no' vendor='Intel'>Skylake-Client-IBRS</model> <model usable='no' vendor='Intel'>Skylake-Client</model> + <model usable='no' vendor='Intel'>SierraForest</model> <model usable='no' vendor='Intel'>SapphireRapids</model> <model usable='no' vendor='Intel'>SandyBridge-IBRS</model> <model usable='no' vendor='Intel'>SandyBridge</model> diff --git a/tests/domaincapsdata/qemu_9.1.0.x86_64.xml b/tests/domaincapsdata/qemu_9.1.0.x86_64.xml index 8cba35fbc4..59d1cab3c9 100644 --- a/tests/domaincapsdata/qemu_9.1.0.x86_64.xml +++ b/tests/domaincapsdata/qemu_9.1.0.x86_64.xml @@ -97,6 +97,7 @@ <model usable='no' vendor='Intel'>Skylake-Client-noTSX-IBRS</model> <model usable='no' vendor='Intel'>Skylake-Client-IBRS</model> <model usable='no' vendor='Intel'>Skylake-Client</model> + <model usable='no' vendor='Intel'>SierraForest</model> <model usable='no' vendor='Intel'>SapphireRapids</model> <model usable='no' vendor='Intel'>SandyBridge-IBRS</model> <model usable='yes' vendor='Intel'>SandyBridge</model> -- 2.43.0

2 1

Re: [PATCH] chardev: allow specifying finer-grained reconnect timeouts
by Markus Armbruster 30 Aug '24

30 Aug '24

Daniil Tatianin <d-tatianin(a)yandex-team.ru> writes: > The "reconnect" option only allows to specify the time in seconds, > which is way too long for certain workflows. > > We have a lightweight disk backend server, which takes about 20ms to > live update, but due to this limitation in QEMU, previously the guest > disk controller would hang for one second because it would take this > long for QEMU to reinitialize the socket connection. > > Make it possible to specify a smaller timeout by treating the value in > "reconnect" as milliseconds via the new "reconnect-is-ms" option. > > Signed-off-by: Daniil Tatianin <d-tatianin(a)yandex-team.ru> Your use case demonstrates that a granularity of seconds was the wrong choice for the reconnection delay. [...] > diff --git a/qapi/char.json b/qapi/char.json > index ef58445cee..61aeccf09d 100644 > --- a/qapi/char.json > +++ b/qapi/char.json > @@ -272,8 +272,13 @@ > # (default: false) (Since: 3.1) > # > # @reconnect: For a client socket, if a socket is disconnected, then > -# attempt a reconnect after the given number of seconds. Setting > -# this to zero disables this function. (default: 0) (Since: 2.2) > +# attempt a reconnect after the given number of seconds (unless > +# @reconnect-is-ms is set to true, in that case the number is > +# treated as milliseconds). Setting this to zero disables > +# this function. (default: 0) (Since: 2.2) > +# > +# @reconnect-is-ms: The value specified in @reconnect should be treated > +# as milliseconds. (default: false) (Since: 9.2) > # > # Since: 1.4 > ## > @@ -287,7 +292,8 @@ > '*telnet': 'bool', > '*tn3270': 'bool', > '*websocket': 'bool', > - '*reconnect': 'int' }, > + '*reconnect': 'int', > + '*reconnect-is-ms': 'bool' }, > 'base': 'ChardevCommon' } > > ## I don't like this interface. PRO: compatible extension; no management application updates needed unless they want to support sub-second delays. CON: specifying a sub-second delay takes two parameters, which is awkward. CON: trap in combination with -set. Before the patch, something like -set chardev.ID.reconnect=N means N seconds no matter what. Afterwards, it depends on the value of reconnect-is-ms, which may be set far away. Mitigating factor: -set is obscure. Alternatives: 1. Change @reconnect to 'number', specify sub-second delays as fractions. PRO: compatible extension; no management application updates needed unless they want to support sub-second delays. CON: first use of floating-point for time in seconds in QAPI, as far as I can see. CON: QemuOpts can't do floating-point. 2. Deprecate @reconnect in favour of a new member with a more suitable unit. Error if both are present. PRO: after @reconnect is gone, the interface is what it arguably should've been from the start. CON: incompatible change. Management application updates needed within the deprecation grace period. Let's get additional input from management application developers. I cc'ed some. Related: NetdevSocketOptions member @reconnect.

4 4

[PATCH 0/3] Add TPM emulator <source file=''/>
by marcandre.lureau＠redhat.com 29 Aug '24

29 Aug '24

From: Marc-André Lureau <marcandre.lureau(a)redhat.com> Hi, When swtpm capabilities reports "nvram-backend-dir", it can accepts a single file or block device where TPM state will be stored. --tpmstate must be backend-uri=file://. Let me know what you think of this approach of exposing this. Related: https://issues.redhat.com/browse/CNV-35250 Marc-André Lureau (3): util: check swtpm nvram-backend-dir capability schema: add TPM emulator <source file='..'> qemu_tpm: handle file/block storage docs/formatdomain.rst | 15 +++++ src/conf/domain_conf.c | 21 ++++++ src/conf/domain_conf.h | 6 ++ src/conf/schemas/domaincommon.rng | 11 +++ src/qemu/qemu_tpm.c | 74 +++++++++++++++++---- src/util/virtpm.c | 1 + src/util/virtpm.h | 1 + tests/qemuxmlconfdata/tpm-emulator-tpm2.xml | 1 + 8 files changed, 117 insertions(+), 13 deletions(-) -- 2.45.2.827.g557ae147e6

3 7

[PATCH] NEWS: Mention fix for CVE-2024-8235
by Peter Krempa 29 Aug '24

29 Aug '24

Signed-off-by: Peter Krempa <pkrempa(a)redhat.com> --- NEWS.rst | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/NEWS.rst b/NEWS.rst index 9234e70590..755f51d5b7 100644 --- a/NEWS.rst +++ b/NEWS.rst @@ -13,6 +13,18 @@ v10.7.0 (unreleased) * **Security** + * CVE-2024-8235: Crash of ``virtinterfaced`` via ``virConnectListInterfaces()`` + + A refactor of the code fetching the list of interfaces for multiple APIs + introduced corner case on platforms where allocating 0 bytes of memory + results in a NULL pointer. + + This corner case would lead to a NULL-pointer dereference and subsequent + crash of ``virtinterfaced`` if ``virConnectListInterfaces()`` is called + requesting 0 networks to be filled. + + The bug was introduced in libvirt-10.4.0 + * **Removed features** * **New features** -- 2.46.0

2 1

Entering freeze for libvirt-10.7.0
by Jiri Denemark 29 Aug '24

29 Aug '24

I have just tagged v10.7.0-rc1 in the repository and pushed signed tarballs to https://download.libvirt.org/ Please give the release candidate some testing and in case you find a serious issue which should have a fix in the upcoming release, feel free to reply to this thread to make sure the issue is more visible. If you have not done so yet, please update NEWS.rst to document any significant change you made since the last release. Thanks, Jirka

1 1

[PATCH TRIVIAL] qemu: Fix a few comments
by Kamil Szczęk 29 Aug '24

29 Aug '24

Signed-off-by: Kamil Szczęk <kamil(a)szczek.dev> Fixes: d292c5ba1775bd70488fc1646e986c1987844549 --- src/qemu/qemu_domain.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c index aa4a2b50bb..93dbbcbc0b 100644 --- a/src/qemu/qemu_domain.c +++ b/src/qemu/qemu_domain.c @@ -9046,7 +9046,7 @@ qemuFindAgentConfig(virDomainDef *def) } /* You should normally avoid this function and use - * qemuDomainMachineIsQ35() instead. */ + * qemuDomainIsQ35() instead. */ bool qemuDomainMachineIsQ35(const char *machine, const virArch arch) @@ -9064,7 +9064,7 @@ qemuDomainMachineIsQ35(const char *machine, /* You should normally avoid this function and use - * qemuDomainMachineIsI440FX() instead. */ + * qemuDomainIsI440FX() instead. */ bool qemuDomainMachineIsI440FX(const char *machine, const virArch arch) @@ -9184,7 +9184,7 @@ qemuDomainMachineIsMipsMalta(const char *machine, /* You should normally avoid this function and use - * qemuDomainMachineIsXenFV() instead. */ + * qemuDomainIsXenFV() instead. */ bool qemuDomainMachineIsXenFV(const char *machine, const virArch arch) -- 2.45.0

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