Compare commits
3 Commits
| Author | SHA1 | Date | |
|---|---|---|---|
| 16a0b3ee88 | |||
| c4ffbc71ac | |||
| 55716b555d |
@@ -1,41 +0,0 @@
|
||||
From 3499354e12a1c1832bf4030693a64e03ceb79d05 Mon Sep 17 00:00:00 2001
|
||||
From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= <berrange@redhat.com>
|
||||
Date: Wed, 5 Jun 2024 11:16:21 +0100
|
||||
Subject: [PATCH] interface: fix udev reference leak with invalid flags
|
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MIME-Version: 1.0
|
||||
Content-Type: text/plain; charset=UTF-8
|
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Content-Transfer-Encoding: 8bit
|
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|
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The udevInterfaceGetXMLDesc method takes a reference on the udev
|
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driver as its first action. If the virCheckFlags() condition
|
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fails, however, this reference is never released.
|
||||
|
||||
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
|
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Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
|
||||
---
|
||||
src/interface/interface_backend_udev.c | 4 +++-
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1 file changed, 3 insertions(+), 1 deletion(-)
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|
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diff --git a/src/interface/interface_backend_udev.c b/src/interface/interface_backend_udev.c
|
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index fdf11a8318..e1a50389c9 100644
|
||||
--- a/src/interface/interface_backend_udev.c
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||||
+++ b/src/interface/interface_backend_udev.c
|
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@@ -1027,12 +1027,14 @@ static char *
|
||||
udevInterfaceGetXMLDesc(virInterfacePtr ifinfo,
|
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unsigned int flags)
|
||||
{
|
||||
- struct udev *udev = udev_ref(driver->udev);
|
||||
+ struct udev *udev = NULL;
|
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g_autoptr(virInterfaceDef) ifacedef = NULL;
|
||||
char *xmlstr = NULL;
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|
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virCheckFlags(VIR_INTERFACE_XML_INACTIVE, NULL);
|
||||
|
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+ udev = udev_ref(driver->udev);
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+
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/* Recursively build up the interface XML based on the requested
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* interface name
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*/
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--
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2.45.1
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||||
|
||||
@@ -1,49 +0,0 @@
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From 98f1cf88fa7e0f992d93f376418fbfb3996a9690 Mon Sep 17 00:00:00 2001
|
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From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= <berrange@redhat.com>
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Date: Fri, 17 May 2024 14:55:24 +0100
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Subject: [PATCH] rpc: avoid leak of GSource in use for interrupting main loop
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
|
||||
|
||||
We never release the reference on the GSource created for
|
||||
interrupting the main loop, nor do we remove it from the
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main context if our thread is woken up prior to the wakeup
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callback firing.
|
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|
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This can result in a leak of GSource objects, along with an
|
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ever growing list of GSources attached to the main context,
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which will gradually slow down execution of the loop, as
|
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several operations are O(N) for the number of attached GSource
|
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objects.
|
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|
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Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
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Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
|
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---
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src/rpc/virnetclient.c | 3 ++-
|
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1 file changed, 2 insertions(+), 1 deletion(-)
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|
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diff --git a/src/rpc/virnetclient.c b/src/rpc/virnetclient.c
|
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index 147b0d661a..6d424eb599 100644
|
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--- a/src/rpc/virnetclient.c
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+++ b/src/rpc/virnetclient.c
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@@ -1946,7 +1946,7 @@ static int virNetClientIO(virNetClient *client,
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/* Check to see if another thread is dispatching */
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if (client->haveTheBuck) {
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/* Force other thread to wakeup from poll */
|
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- GSource *wakeup = g_idle_source_new();
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+ g_autoptr(GSource) wakeup = g_idle_source_new();
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g_source_set_callback(wakeup, virNetClientIOWakeup, client->eventLoop, NULL);
|
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g_source_attach(wakeup, client->eventCtx);
|
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|
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@@ -1968,6 +1968,7 @@ static int virNetClientIO(virNetClient *client,
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return -1;
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}
|
||||
|
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+ g_source_destroy(wakeup);
|
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VIR_DEBUG("Woken up from sleep head=%p call=%p",
|
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client->waitDispatch, thiscall);
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/* Three reasons we can be woken up
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--
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2.45.1
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|
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@@ -1,99 +0,0 @@
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From 8074d64dc2eca846d6a61efe1a9b7428a0ce1dd1 Mon Sep 17 00:00:00 2001
|
||||
From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= <berrange@redhat.com>
|
||||
Date: Tue, 30 Apr 2024 11:51:15 +0100
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Subject: [PATCH] rpc: ensure temporary GSource is removed from client event
|
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loop
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MIME-Version: 1.0
|
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Content-Type: text/plain; charset=UTF-8
|
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Content-Transfer-Encoding: 8bit
|
||||
|
||||
Users are seeing periodic segfaults from libvirt client apps,
|
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especially thread heavy ones like virt-manager. A typical
|
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stack trace would end up in the virNetClientIOEventFD method,
|
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with illegal access to stale stack data. eg
|
||||
|
||||
==238721==ERROR: AddressSanitizer: stack-use-after-return on address 0x75cd18709788 at pc 0x75cd3111f907 bp 0x75cd181ff550 sp 0x75cd181ff548
|
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WRITE of size 4 at 0x75cd18709788 thread T11
|
||||
#0 0x75cd3111f906 in virNetClientIOEventFD /usr/src/debug/libvirt/libvirt-10.2.0/build/../src/rpc/virnetclient.c:1634:15
|
||||
#1 0x75cd3210d198 (/usr/lib/libglib-2.0.so.0+0x5a198) (BuildId: 0a2311dfbbc6c215dc36f4b6bdd2b4b6fbae55a2)
|
||||
#2 0x75cd3216c3be (/usr/lib/libglib-2.0.so.0+0xb93be) (BuildId: 0a2311dfbbc6c215dc36f4b6bdd2b4b6fbae55a2)
|
||||
#3 0x75cd3210ddc6 in g_main_loop_run (/usr/lib/libglib-2.0.so.0+0x5adc6) (BuildId: 0a2311dfbbc6c215dc36f4b6bdd2b4b6fbae55a2)
|
||||
#4 0x75cd3111a47c in virNetClientIOEventLoop /usr/src/debug/libvirt/libvirt-10.2.0/build/../src/rpc/virnetclient.c:1722:9
|
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#5 0x75cd3111a47c in virNetClientIO /usr/src/debug/libvirt/libvirt-10.2.0/build/../src/rpc/virnetclient.c:2002:10
|
||||
#6 0x75cd3111a47c in virNetClientSendInternal /usr/src/debug/libvirt/libvirt-10.2.0/build/../src/rpc/virnetclient.c:2170:11
|
||||
#7 0x75cd311198a8 in virNetClientSendWithReply /usr/src/debug/libvirt/libvirt-10.2.0/build/../src/rpc/virnetclient.c:2198:11
|
||||
#8 0x75cd31111653 in virNetClientProgramCall /usr/src/debug/libvirt/libvirt-10.2.0/build/../src/rpc/virnetclientprogram.c:318:9
|
||||
#9 0x75cd31241c8f in callFull /usr/src/debug/libvirt/libvirt-10.2.0/build/../src/remote/remote_driver.c:6054:10
|
||||
#10 0x75cd31241c8f in call /usr/src/debug/libvirt/libvirt-10.2.0/build/../src/remote/remote_driver.c:6076:12
|
||||
#11 0x75cd31241c8f in remoteNetworkGetXMLDesc /usr/src/debug/libvirt/libvirt-10.2.0/build/src/remote/remote_client_bodies.h:5959:9
|
||||
#12 0x75cd31410ff7 in virNetworkGetXMLDesc /usr/src/debug/libvirt/libvirt-10.2.0/build/../src/libvirt-network.c:952:15
|
||||
|
||||
The root cause is a bad assumption in the virNetClientIOEventLoop
|
||||
method. This method is run by whichever thread currently owns the
|
||||
buck, and is responsible for handling I/O. Inside a for(;;) loop,
|
||||
this method creates a temporary GSource, adds it to the event loop
|
||||
and runs g_main_loop_run(). When I/O is ready, the GSource callback
|
||||
(virNetClientIOEventFD) will fire and call g_main_loop_quit(), and
|
||||
return G_SOURCE_REMOVE which results in the temporary GSource being
|
||||
destroyed. A g_autoptr() will then remove the last reference.
|
||||
|
||||
What was overlooked, is that a second thread can come along and
|
||||
while it can't enter virNetClientIOEventLoop, it will register an
|
||||
idle source that uses virNetClientIOWakeup to interrupt the
|
||||
original thread's 'g_main_loop_run' call. When this happens the
|
||||
virNetClientIOEventFD callback never runs, and so the temporary
|
||||
GSource is not destroyed. The g_autoptr() will remove a reference,
|
||||
but by virtue of still being attached to the event context, there
|
||||
is an extra reference held causing GSource to be leaked. The
|
||||
next time 'g_main_loop_run' is called, the original GSource will
|
||||
trigger its callback, and access data that was allocated on the
|
||||
stack by the previous thread, and likely SEGV.
|
||||
|
||||
To solve this, the thread calling 'g_main_loop_run' must call
|
||||
g_source_destroy, immediately upon return, to guarantee that
|
||||
the temporary GSource is removed.
|
||||
|
||||
CVE-2024-4418
|
||||
Reviewed-by: Ján Tomko <jtomko@redhat.com>
|
||||
Reported-by: Martin Shirokov <shirokovmartin@gmail.com>
|
||||
Tested-by: Martin Shirokov <shirokovmartin@gmail.com>
|
||||
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
|
||||
---
|
||||
src/rpc/virnetclient.c | 14 +++++++++++++-
|
||||
1 file changed, 13 insertions(+), 1 deletion(-)
|
||||
|
||||
diff --git a/src/rpc/virnetclient.c b/src/rpc/virnetclient.c
|
||||
index 68098b1c8d..147b0d661a 100644
|
||||
--- a/src/rpc/virnetclient.c
|
||||
+++ b/src/rpc/virnetclient.c
|
||||
@@ -1657,7 +1657,7 @@ static int virNetClientIOEventLoop(virNetClient *client,
|
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#endif /* !WIN32 */
|
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int timeout = -1;
|
||||
virNetMessage *msg = NULL;
|
||||
- g_autoptr(GSource) G_GNUC_UNUSED source = NULL;
|
||||
+ g_autoptr(GSource) source = NULL;
|
||||
GIOCondition ev = 0;
|
||||
struct virNetClientIOEventData data = {
|
||||
.client = client,
|
||||
@@ -1721,6 +1721,18 @@ static int virNetClientIOEventLoop(virNetClient *client,
|
||||
|
||||
g_main_loop_run(client->eventLoop);
|
||||
|
||||
+ /*
|
||||
+ * If virNetClientIOEventFD ran, this GSource will already be
|
||||
+ * destroyed due to G_SOURCE_REMOVE. It is harmless to re-destroy
|
||||
+ * it, since we still own a reference.
|
||||
+ *
|
||||
+ * If virNetClientIOWakeup ran, it will have interrupted the
|
||||
+ * g_main_loop_run call, before virNetClientIOEventFD could
|
||||
+ * run, and thus the GSource is still registered, and we need
|
||||
+ * to destroy it since it is referencing stack memory for 'data'
|
||||
+ */
|
||||
+ g_source_destroy(source);
|
||||
+
|
||||
#ifndef WIN32
|
||||
ignore_value(pthread_sigmask(SIG_SETMASK, &oldmask, NULL));
|
||||
#endif /* !WIN32 */
|
||||
--
|
||||
2.45.1
|
||||
|
||||
@@ -0,0 +1,34 @@
|
||||
From: Jiri Denemark <jdenemar@redhat.com>
|
||||
Date: Wed, 5 Aug 2020 10:01:45 +0200
|
||||
Subject: [PATCH] util: Fix logic in virFileSetCOW
|
||||
MIME-Version: 1.0
|
||||
Content-Type: text/plain; charset=UTF-8
|
||||
Content-Transfer-Encoding: 8bit
|
||||
|
||||
When COW is not explicitly requested to be disabled or enabled, the
|
||||
function is supposed to do nothing on non-BTRFS file systems.
|
||||
|
||||
Fixes commit 7230bc95aa78379c9ee20cf59394c5fc4305b75b.
|
||||
|
||||
https://bugzilla.redhat.com/show_bug.cgi?id=1866157
|
||||
|
||||
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
|
||||
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
|
||||
(cherry picked from commit 2edd63a0dbd445112db23596ee0128521e8f1ff5)
|
||||
---
|
||||
src/util/virfile.c | 2 +-
|
||||
1 file changed, 1 insertion(+), 1 deletion(-)
|
||||
|
||||
diff --git a/src/util/virfile.c b/src/util/virfile.c
|
||||
index af150421e7..a06e7dfcce 100644
|
||||
--- a/src/util/virfile.c
|
||||
+++ b/src/util/virfile.c
|
||||
@@ -4550,7 +4550,7 @@ virFileSetCOW(const char *path,
|
||||
}
|
||||
|
||||
if (buf.f_type != BTRFS_SUPER_MAGIC) {
|
||||
- if (state == VIR_TRISTATE_BOOL_ABSENT) {
|
||||
+ if (state != VIR_TRISTATE_BOOL_ABSENT) {
|
||||
virReportSystemError(ENOSYS,
|
||||
_("unable to control COW flag on '%s', not btrfs"),
|
||||
path);
|
||||
@@ -1,35 +0,0 @@
|
||||
From adfdb79f1e01401349e1321d0f5059d7b6489f00 Mon Sep 17 00:00:00 2001
|
||||
Message-ID: <adfdb79f1e01401349e1321d0f5059d7b6489f00.1724763718.git.crobinso@redhat.com>
|
||||
From: Martin Kletzander <mkletzan@redhat.com>
|
||||
Date: Fri, 16 Aug 2024 13:56:51 +0200
|
||||
Subject: [PATCH 1/3] virarptable: Properly calculate rtattr length
|
||||
Content-type: text/plain
|
||||
|
||||
Use convenience macro which does almost the same thing we were doing,
|
||||
but also pads out the payload length to a multiple of NLMSG_ALIGNTO (4)
|
||||
bytes.
|
||||
|
||||
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
|
||||
Reviewed-by: Laine Stump <laine@redhat.com>
|
||||
Signed-off-by: Cole Robinson <crobinso@redhat.com>
|
||||
---
|
||||
src/util/virarptable.c | 3 +--
|
||||
1 file changed, 1 insertion(+), 2 deletions(-)
|
||||
|
||||
diff --git a/src/util/virarptable.c b/src/util/virarptable.c
|
||||
index 299dddd664..d8e41c5a86 100644
|
||||
--- a/src/util/virarptable.c
|
||||
+++ b/src/util/virarptable.c
|
||||
@@ -102,8 +102,7 @@ virArpTableGet(void)
|
||||
return table;
|
||||
|
||||
VIR_WARNINGS_NO_CAST_ALIGN
|
||||
- parse_rtattr(tb, NDA_MAX, NDA_RTA(r),
|
||||
- nh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
|
||||
+ parse_rtattr(tb, NDA_MAX, NDA_RTA(r), NLMSG_PAYLOAD(nh, sizeof(*r)));
|
||||
VIR_WARNINGS_RESET
|
||||
|
||||
if (tb[NDA_DST] == NULL || tb[NDA_LLADDR] == NULL)
|
||||
--
|
||||
2.46.0
|
||||
|
||||
@@ -1,42 +0,0 @@
|
||||
From 137779b894858bd958ea575cec260a0559b31e48 Mon Sep 17 00:00:00 2001
|
||||
Message-ID: <137779b894858bd958ea575cec260a0559b31e48.1724763718.git.crobinso@redhat.com>
|
||||
In-Reply-To: <adfdb79f1e01401349e1321d0f5059d7b6489f00.1724763718.git.crobinso@redhat.com>
|
||||
References: <adfdb79f1e01401349e1321d0f5059d7b6489f00.1724763718.git.crobinso@redhat.com>
|
||||
From: Martin Kletzander <mkletzan@redhat.com>
|
||||
Date: Fri, 16 Aug 2024 13:59:15 +0200
|
||||
Subject: [PATCH 2/3] virarptable: Fix check for message length
|
||||
Content-type: text/plain
|
||||
|
||||
The previous check was all wrong since it calculated the how long would
|
||||
the netlink message be if the netlink header was the payload and then
|
||||
subtracted that from the whole message length, a variable that was not
|
||||
used later in the code. This check can fail if there are no additional
|
||||
payloads, struct rtattr in particular, which we are parsing later,
|
||||
however the RTA_OK macro would've caught that anyway.
|
||||
|
||||
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
|
||||
Reviewed-by: Laine Stump <laine@redhat.com>
|
||||
Signed-off-by: Cole Robinson <crobinso@redhat.com>
|
||||
---
|
||||
src/util/virarptable.c | 3 +--
|
||||
1 file changed, 1 insertion(+), 2 deletions(-)
|
||||
|
||||
diff --git a/src/util/virarptable.c b/src/util/virarptable.c
|
||||
index d8e41c5a86..45ee76766f 100644
|
||||
--- a/src/util/virarptable.c
|
||||
+++ b/src/util/virarptable.c
|
||||
@@ -81,10 +81,9 @@ virArpTableGet(void)
|
||||
for (; NLMSG_OK(nh, msglen); nh = NLMSG_NEXT(nh, msglen)) {
|
||||
VIR_WARNINGS_RESET
|
||||
struct ndmsg *r = NLMSG_DATA(nh);
|
||||
- int len = nh->nlmsg_len;
|
||||
void *addr;
|
||||
|
||||
- if ((len -= NLMSG_LENGTH(sizeof(*nh))) < 0) {
|
||||
+ if (nh->nlmsg_len < NLMSG_SPACE(sizeof(*r))) {
|
||||
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
|
||||
_("wrong nlmsg len"));
|
||||
goto cleanup;
|
||||
--
|
||||
2.46.0
|
||||
|
||||
@@ -0,0 +1,88 @@
|
||||
From: Michal Privoznik <mprivozn@redhat.com>
|
||||
Date: Tue, 18 Aug 2020 11:08:15 +0200
|
||||
Subject: [PATCH] virdevmapper: Don't cache device-mapper major
|
||||
|
||||
The device mapper major is needed in virIsDevMapperDevice() which
|
||||
determines whether given device is managed by device-mapper. This
|
||||
number is obtained by parsing /proc/devices and then stored in a
|
||||
global variable so that the file doesn't have to be parsed again.
|
||||
However, as it turns out this logic is flawed - the major number
|
||||
is not static and can change as it can be specified as a
|
||||
parameter when loading the dm-mod module.
|
||||
|
||||
Unfortunately, I was not able to come up with a good solution and
|
||||
thus the /proc/devices file is being parsed every time we need
|
||||
the device mapper major.
|
||||
|
||||
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
|
||||
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
|
||||
Reviewed-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
|
||||
Tested-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
|
||||
(cherry picked from commit 82bb167f0d15b733b23931205be3488b83cb9ec6)
|
||||
---
|
||||
src/util/virdevmapper.c | 17 +++++------------
|
||||
1 file changed, 5 insertions(+), 12 deletions(-)
|
||||
|
||||
diff --git a/src/util/virdevmapper.c b/src/util/virdevmapper.c
|
||||
index a471504176..b43dbefa9a 100644
|
||||
--- a/src/util/virdevmapper.c
|
||||
+++ b/src/util/virdevmapper.c
|
||||
@@ -46,11 +46,9 @@
|
||||
|
||||
G_STATIC_ASSERT(BUF_SIZE > sizeof(struct dm_ioctl));
|
||||
|
||||
-static unsigned int virDMMajor;
|
||||
-
|
||||
|
||||
static int
|
||||
-virDevMapperOnceInit(void)
|
||||
+virDevMapperGetMajor(unsigned int *major)
|
||||
{
|
||||
g_autofree char *buf = NULL;
|
||||
VIR_AUTOSTRINGLIST lines = NULL;
|
||||
@@ -69,7 +67,7 @@ virDevMapperOnceInit(void)
|
||||
|
||||
if (sscanf(lines[i], "%u %ms\n", &maj, &dev) == 2 &&
|
||||
STREQ(dev, DM_NAME)) {
|
||||
- virDMMajor = maj;
|
||||
+ *major = maj;
|
||||
break;
|
||||
}
|
||||
}
|
||||
@@ -85,9 +83,6 @@ virDevMapperOnceInit(void)
|
||||
}
|
||||
|
||||
|
||||
-VIR_ONCE_GLOBAL_INIT(virDevMapper);
|
||||
-
|
||||
-
|
||||
static void *
|
||||
virDMIoctl(int controlFD, int cmd, struct dm_ioctl *dm, char **buf)
|
||||
{
|
||||
@@ -305,9 +300,6 @@ virDevMapperGetTargets(const char *path,
|
||||
* consist of devices or yet another targets. If that's the
|
||||
* case, we have to stop recursion somewhere. */
|
||||
|
||||
- if (virDevMapperInitialize() < 0)
|
||||
- return -1;
|
||||
-
|
||||
if ((controlFD = virDMOpen()) < 0)
|
||||
return -1;
|
||||
|
||||
@@ -319,13 +311,14 @@ bool
|
||||
virIsDevMapperDevice(const char *dev_name)
|
||||
{
|
||||
struct stat buf;
|
||||
+ unsigned int major;
|
||||
|
||||
- if (virDevMapperInitialize() < 0)
|
||||
+ if (virDevMapperGetMajor(&major) < 0)
|
||||
return false;
|
||||
|
||||
if (!stat(dev_name, &buf) &&
|
||||
S_ISBLK(buf.st_mode) &&
|
||||
- major(buf.st_rdev) == virDMMajor)
|
||||
+ major(buf.st_rdev) == major)
|
||||
return true;
|
||||
|
||||
return false;
|
||||
@@ -1,54 +0,0 @@
|
||||
From df2cefb31dab2fa56e0864fbd2b8ad468dee22c0 Mon Sep 17 00:00:00 2001
|
||||
Message-ID: <df2cefb31dab2fa56e0864fbd2b8ad468dee22c0.1724763718.git.crobinso@redhat.com>
|
||||
In-Reply-To: <adfdb79f1e01401349e1321d0f5059d7b6489f00.1724763718.git.crobinso@redhat.com>
|
||||
References: <adfdb79f1e01401349e1321d0f5059d7b6489f00.1724763718.git.crobinso@redhat.com>
|
||||
From: Martin Kletzander <mkletzan@redhat.com>
|
||||
Date: Fri, 16 Aug 2024 14:02:48 +0200
|
||||
Subject: [PATCH 3/3] virarptable: End parsing earlier in case of NLMSG_DONE
|
||||
Content-type: text/plain
|
||||
|
||||
Check for the last multipart message right as the first thing. The
|
||||
presumption probably was that the last message might still contain a
|
||||
payload we want to parse. However that cannot be true since that would
|
||||
have to be a type RTM_NEWNEIGH. This was not caught because older
|
||||
kernels were note sending NLMSG_DONE and probably relied on the fact
|
||||
that the parsing just stops after all the messages are walked through,
|
||||
which the NLMSG_OK macro successfully did.
|
||||
|
||||
Resolves: https://issues.redhat.com/browse/RHEL-52449
|
||||
Resolves: https://bugzilla.redhat.com/2302245
|
||||
Fixes: a176d67cdfaf5b8237a7e3a80d8be0e6bdf2d8fd
|
||||
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
|
||||
Reviewed-by: Laine Stump <laine@redhat.com>
|
||||
Signed-off-by: Cole Robinson <crobinso@redhat.com>
|
||||
---
|
||||
src/util/virarptable.c | 6 +++---
|
||||
1 file changed, 3 insertions(+), 3 deletions(-)
|
||||
|
||||
diff --git a/src/util/virarptable.c b/src/util/virarptable.c
|
||||
index 45ee76766f..20d11f97b0 100644
|
||||
--- a/src/util/virarptable.c
|
||||
+++ b/src/util/virarptable.c
|
||||
@@ -83,6 +83,9 @@ virArpTableGet(void)
|
||||
struct ndmsg *r = NLMSG_DATA(nh);
|
||||
void *addr;
|
||||
|
||||
+ if (nh->nlmsg_type == NLMSG_DONE)
|
||||
+ break;
|
||||
+
|
||||
if (nh->nlmsg_len < NLMSG_SPACE(sizeof(*r))) {
|
||||
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
|
||||
_("wrong nlmsg len"));
|
||||
@@ -97,9 +100,6 @@ virArpTableGet(void)
|
||||
(!(r->ndm_state == NUD_STALE || r->ndm_state == NUD_REACHABLE)))
|
||||
continue;
|
||||
|
||||
- if (nh->nlmsg_type == NLMSG_DONE)
|
||||
- return table;
|
||||
-
|
||||
VIR_WARNINGS_NO_CAST_ALIGN
|
||||
parse_rtattr(tb, NDA_MAX, NDA_RTA(r), NLMSG_PAYLOAD(nh, sizeof(*r)));
|
||||
VIR_WARNINGS_RESET
|
||||
--
|
||||
2.46.0
|
||||
|
||||
@@ -0,0 +1,76 @@
|
||||
From: Michal Privoznik <mprivozn@redhat.com>
|
||||
Date: Tue, 18 Aug 2020 11:04:24 +0200
|
||||
Subject: [PATCH] virdevmapper: Handle kernel without device-mapper support
|
||||
|
||||
In one of my latest patch (v6.6.0~30) I was trying to remove
|
||||
libdevmapper use in favor of our own implementation. However, the
|
||||
code did not take into account that device mapper can be not
|
||||
compiled into the kernel (e.g. be a separate module that's not
|
||||
loaded) in which case /proc/devices won't have the device-mapper
|
||||
major number and thus virDevMapperGetTargets() and/or
|
||||
virIsDevMapperDevice() fails.
|
||||
|
||||
However, such failure is safe to ignore, because if device mapper
|
||||
is missing then there can't be any multipath devices and thus we
|
||||
don't need to allow the deps in CGroups, nor create them in the
|
||||
domain private namespace, etc.
|
||||
|
||||
Fixes: 22494556542c676d1b9e7f1c1f2ea13ac17e1e3e
|
||||
Reported-by: Andrea Bolognani <abologna@redhat.com>
|
||||
Reported-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
|
||||
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
|
||||
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
|
||||
Reviewed-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
|
||||
Tested-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
|
||||
(cherry picked from commit feb8564a3cc63bc8f68284063d53ec0d2d81a1cc)
|
||||
---
|
||||
src/util/virdevmapper.c | 20 ++++++++++++++++++--
|
||||
1 file changed, 18 insertions(+), 2 deletions(-)
|
||||
|
||||
diff --git a/src/util/virdevmapper.c b/src/util/virdevmapper.c
|
||||
index b43dbefa9a..a81e2edee4 100644
|
||||
--- a/src/util/virdevmapper.c
|
||||
+++ b/src/util/virdevmapper.c
|
||||
@@ -54,6 +54,9 @@ virDevMapperGetMajor(unsigned int *major)
|
||||
VIR_AUTOSTRINGLIST lines = NULL;
|
||||
size_t i;
|
||||
|
||||
+ if (!virFileExists(CONTROL_PATH))
|
||||
+ return -2;
|
||||
+
|
||||
if (virFileReadAll(PROC_DEVICES, BUF_SIZE, &buf) < 0)
|
||||
return -1;
|
||||
|
||||
@@ -126,8 +129,13 @@ virDMOpen(void)
|
||||
|
||||
memset(&dm, 0, sizeof(dm));
|
||||
|
||||
- if ((controlFD = open(CONTROL_PATH, O_RDWR)) < 0)
|
||||
+ if ((controlFD = open(CONTROL_PATH, O_RDWR)) < 0) {
|
||||
+ if (errno == ENOENT)
|
||||
+ return -2;
|
||||
+
|
||||
+ virReportSystemError(errno, _("Unable to open %s"), CONTROL_PATH);
|
||||
return -1;
|
||||
+ }
|
||||
|
||||
if (!virDMIoctl(controlFD, DM_VERSION, &dm, &tmp)) {
|
||||
virReportSystemError(errno, "%s",
|
||||
@@ -300,8 +308,16 @@ virDevMapperGetTargets(const char *path,
|
||||
* consist of devices or yet another targets. If that's the
|
||||
* case, we have to stop recursion somewhere. */
|
||||
|
||||
- if ((controlFD = virDMOpen()) < 0)
|
||||
+ if ((controlFD = virDMOpen()) < 0) {
|
||||
+ if (controlFD == -2) {
|
||||
+ /* The CONTROL_PATH doesn't exist. Probably the
|
||||
+ * module isn't loaded, yet. Don't error out, just
|
||||
+ * exit. */
|
||||
+ return 0;
|
||||
+ }
|
||||
+
|
||||
return -1;
|
||||
+ }
|
||||
|
||||
return virDevMapperGetTargetsImpl(controlFD, path, devPaths, ttl);
|
||||
}
|
||||
@@ -0,0 +1,77 @@
|
||||
From: Michal Privoznik <mprivozn@redhat.com>
|
||||
Date: Wed, 19 Aug 2020 13:35:55 +0200
|
||||
Subject: [PATCH] virdevmapper: Ignore all errors when opening
|
||||
/dev/mapper/control
|
||||
|
||||
So far, only ENOENT is ignored (to deal with kernels without
|
||||
devmapper). However, as reported on the list, under certain
|
||||
scenarios a different error can occur. For instance, when libvirt
|
||||
is running inside a container which doesn't have permissions to
|
||||
talk to the devmapper. If this is the case, then open() returns
|
||||
-1 and sets errno=EPERM.
|
||||
|
||||
Assuming that multipath devices are fairly narrow use case and
|
||||
using them in a restricted container is even more narrow the best
|
||||
fix seems to be to ignore all open errors BUT produce a warning
|
||||
on failure. To avoid flooding logs with warnings on kernels
|
||||
without devmapper the level is reduced to a plain debug message.
|
||||
|
||||
Reported-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
|
||||
Reviewed-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
|
||||
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
|
||||
(cherry picked from commit 53d9af1e7924757e3b5f661131dd707d7110d094)
|
||||
---
|
||||
src/util/virdevmapper.c | 23 +++++++++++++++--------
|
||||
1 file changed, 15 insertions(+), 8 deletions(-)
|
||||
|
||||
diff --git a/src/util/virdevmapper.c b/src/util/virdevmapper.c
|
||||
index a81e2edee4..ee2fab5ae3 100644
|
||||
--- a/src/util/virdevmapper.c
|
||||
+++ b/src/util/virdevmapper.c
|
||||
@@ -35,9 +35,12 @@
|
||||
# include "viralloc.h"
|
||||
# include "virstring.h"
|
||||
# include "virfile.h"
|
||||
+# include "virlog.h"
|
||||
|
||||
# define VIR_FROM_THIS VIR_FROM_STORAGE
|
||||
|
||||
+VIR_LOG_INIT("util.virdevmapper");
|
||||
+
|
||||
# define PROC_DEVICES "/proc/devices"
|
||||
# define DM_NAME "device-mapper"
|
||||
# define DEV_DM_DIR "/dev/" DM_DIR
|
||||
@@ -130,11 +133,15 @@ virDMOpen(void)
|
||||
memset(&dm, 0, sizeof(dm));
|
||||
|
||||
if ((controlFD = open(CONTROL_PATH, O_RDWR)) < 0) {
|
||||
- if (errno == ENOENT)
|
||||
- return -2;
|
||||
-
|
||||
- virReportSystemError(errno, _("Unable to open %s"), CONTROL_PATH);
|
||||
- return -1;
|
||||
+ /* We can't talk to devmapper. Produce a warning and let
|
||||
+ * the caller decide what to do next. */
|
||||
+ if (errno == ENOENT) {
|
||||
+ VIR_DEBUG("device mapper not available");
|
||||
+ } else {
|
||||
+ VIR_WARN("unable to open %s: %s",
|
||||
+ CONTROL_PATH, g_strerror(errno));
|
||||
+ }
|
||||
+ return -2;
|
||||
}
|
||||
|
||||
if (!virDMIoctl(controlFD, DM_VERSION, &dm, &tmp)) {
|
||||
@@ -310,9 +317,9 @@ virDevMapperGetTargets(const char *path,
|
||||
|
||||
if ((controlFD = virDMOpen()) < 0) {
|
||||
if (controlFD == -2) {
|
||||
- /* The CONTROL_PATH doesn't exist. Probably the
|
||||
- * module isn't loaded, yet. Don't error out, just
|
||||
- * exit. */
|
||||
+ /* The CONTROL_PATH doesn't exist or is unusable.
|
||||
+ * Probably the module isn't loaded, yet. Don't error
|
||||
+ * out, just exit. */
|
||||
return 0;
|
||||
}
|
||||
|
||||
@@ -0,0 +1,57 @@
|
||||
From: =?UTF-8?q?J=C3=A1n=20Tomko?= <jtomko@redhat.com>
|
||||
Date: Wed, 4 Nov 2020 12:08:19 +0100
|
||||
Subject: [PATCH] util: use g_autofree in virSCSIHostGetUniqueId
|
||||
MIME-Version: 1.0
|
||||
Content-Type: text/plain; charset=UTF-8
|
||||
Content-Transfer-Encoding: 8bit
|
||||
|
||||
Signed-off-by: Ján Tomko <jtomko@redhat.com>
|
||||
Reviewed-by: Erik Skultety <eskultet@redhat.com>
|
||||
(cherry picked from commit 843b70995471c1a20822ee62ff084310066b4b4a)
|
||||
---
|
||||
src/util/virscsihost.c | 16 +++++-----------
|
||||
1 file changed, 5 insertions(+), 11 deletions(-)
|
||||
|
||||
diff --git a/src/util/virscsihost.c b/src/util/virscsihost.c
|
||||
index 7d8e5299b8..4e6d8f7ad6 100644
|
||||
--- a/src/util/virscsihost.c
|
||||
+++ b/src/util/virscsihost.c
|
||||
@@ -46,17 +46,16 @@ int
|
||||
virSCSIHostGetUniqueId(const char *sysfs_prefix,
|
||||
int host)
|
||||
{
|
||||
- char *sysfs_path = NULL;
|
||||
+ g_autofree char *sysfs_path = NULL;
|
||||
char *p = NULL;
|
||||
- int ret = -1;
|
||||
- char *buf = NULL;
|
||||
+ g_autofree char *buf = NULL;
|
||||
int unique_id;
|
||||
|
||||
sysfs_path = g_strdup_printf("%s/host%d/unique_id",
|
||||
sysfs_prefix ? sysfs_prefix : SYSFS_SCSI_HOST_PATH, host);
|
||||
|
||||
if (virFileReadAll(sysfs_path, 1024, &buf) < 0)
|
||||
- goto cleanup;
|
||||
+ return -1;
|
||||
|
||||
if ((p = strchr(buf, '\n')))
|
||||
*p = '\0';
|
||||
@@ -65,15 +64,10 @@ virSCSIHostGetUniqueId(const char *sysfs_prefix,
|
||||
virReportError(VIR_ERR_INTERNAL_ERROR,
|
||||
_("unable to parse unique_id: %s"), buf);
|
||||
|
||||
- goto cleanup;
|
||||
+ return -1;
|
||||
}
|
||||
|
||||
- ret = unique_id;
|
||||
-
|
||||
- cleanup:
|
||||
- VIR_FREE(sysfs_path);
|
||||
- VIR_FREE(buf);
|
||||
- return ret;
|
||||
+ return unique_id;
|
||||
}
|
||||
|
||||
|
||||
@@ -0,0 +1,56 @@
|
||||
From: =?UTF-8?q?J=C3=A1n=20Tomko?= <jtomko@redhat.com>
|
||||
Date: Wed, 4 Nov 2020 12:29:07 +0100
|
||||
Subject: [PATCH] util: quieten virSCSIHostGetUniqueId
|
||||
MIME-Version: 1.0
|
||||
Content-Type: text/plain; charset=UTF-8
|
||||
Content-Transfer-Encoding: 8bit
|
||||
|
||||
The only caller of this function ignores failure
|
||||
and just sets the unique_id to -1.
|
||||
|
||||
Failing to read the file is likely to the device no longer
|
||||
being present, not a real error.
|
||||
|
||||
Stop reporting errors in this function.
|
||||
|
||||
https://bugzilla.redhat.com/show_bug.cgi?id=1692100
|
||||
|
||||
Signed-off-by: Ján Tomko <jtomko@redhat.com>
|
||||
Reviewed-by: Erik Skultety <eskultet@redhat.com>
|
||||
(cherry picked from commit 4a56278e770c972dbee7be5842b557de152a586e)
|
||||
---
|
||||
src/util/virscsihost.c | 8 ++++----
|
||||
1 file changed, 4 insertions(+), 4 deletions(-)
|
||||
|
||||
diff --git a/src/util/virscsihost.c b/src/util/virscsihost.c
|
||||
index 4e6d8f7ad6..b1d51b40d3 100644
|
||||
--- a/src/util/virscsihost.c
|
||||
+++ b/src/util/virscsihost.c
|
||||
@@ -41,6 +41,8 @@ VIR_LOG_INIT("util.scsi_host");
|
||||
* Read the value of the "scsi_host" unique_id file.
|
||||
*
|
||||
* Returns the value on success or -1 on failure.
|
||||
+ *
|
||||
+ * No errors are reported.
|
||||
*/
|
||||
int
|
||||
virSCSIHostGetUniqueId(const char *sysfs_prefix,
|
||||
@@ -54,16 +56,14 @@ virSCSIHostGetUniqueId(const char *sysfs_prefix,
|
||||
sysfs_path = g_strdup_printf("%s/host%d/unique_id",
|
||||
sysfs_prefix ? sysfs_prefix : SYSFS_SCSI_HOST_PATH, host);
|
||||
|
||||
- if (virFileReadAll(sysfs_path, 1024, &buf) < 0)
|
||||
+ if (virFileReadAllQuiet(sysfs_path, 1024, &buf) < 0)
|
||||
return -1;
|
||||
|
||||
if ((p = strchr(buf, '\n')))
|
||||
*p = '\0';
|
||||
|
||||
if (virStrToLong_i(buf, NULL, 10, &unique_id) < 0) {
|
||||
- virReportError(VIR_ERR_INTERNAL_ERROR,
|
||||
- _("unable to parse unique_id: %s"), buf);
|
||||
-
|
||||
+ VIR_DEBUG("unable to parse unique_id: '%s'", buf);
|
||||
return -1;
|
||||
}
|
||||
|
||||
@@ -0,0 +1,46 @@
|
||||
From: Michal Privoznik <mprivozn@redhat.com>
|
||||
Date: Tue, 17 Nov 2020 12:56:39 +0100
|
||||
Subject: [PATCH] node_device: Use "udev" monitor source
|
||||
MIME-Version: 1.0
|
||||
Content-Type: text/plain; charset=UTF-8
|
||||
Content-Transfer-Encoding: 8bit
|
||||
|
||||
In v6.3.0-rc1~67 I've made a switch: instead of listening on udev
|
||||
events the nodedev driver started listening for kernel events.
|
||||
This was because when a device changes its name (e.g. NICs) we
|
||||
will get "move" event with DEVPATH_OLD property set, which we can
|
||||
then use to remove the old device and thus keep our internal list
|
||||
up to date. The switch to "kernel" source was made because if the
|
||||
old NICs naming (eth0, eth1, ...) is enabled (e.g. via
|
||||
net.ifnames=0 on the kernel cmd line) then udev overwrites the
|
||||
property with the new name making our internal list go out of
|
||||
sync. Interestingly, when the od NICs naming is not enabled then
|
||||
the DEVPATH_OLD contains the correct value.
|
||||
|
||||
But as it turns out, "kernel" source might be missing some other
|
||||
important properties, e.g. USB vendor/product IDs. Therefore,
|
||||
switch back to "udev" source and wish the best of luck to users
|
||||
using the old NICs naming.
|
||||
|
||||
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1897625
|
||||
Fixes: 9a13704818e4a018723e0ec5b9e97b176f1c8584
|
||||
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
|
||||
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
|
||||
(cherry picked from commit 7e67a136dab9034dd3cb2ed76fa90c524c800cde)
|
||||
---
|
||||
src/node_device/node_device_udev.c | 2 +-
|
||||
1 file changed, 1 insertion(+), 1 deletion(-)
|
||||
|
||||
diff --git a/src/node_device/node_device_udev.c b/src/node_device/node_device_udev.c
|
||||
index ff558efb83..b7fbd42fa1 100644
|
||||
--- a/src/node_device/node_device_udev.c
|
||||
+++ b/src/node_device/node_device_udev.c
|
||||
@@ -1878,7 +1878,7 @@ nodeStateInitialize(bool privileged,
|
||||
|
||||
virObjectLock(priv);
|
||||
|
||||
- priv->udev_monitor = udev_monitor_new_from_netlink(udev, "kernel");
|
||||
+ priv->udev_monitor = udev_monitor_new_from_netlink(udev, "udev");
|
||||
if (!priv->udev_monitor) {
|
||||
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
|
||||
_("udev_monitor_new_from_netlink returned NULL"));
|
||||
@@ -1,31 +0,0 @@
|
||||
From 4c5b2e1e0d0d0cbbf8c6ed28ce77d055d5974f7f Mon Sep 17 00:00:00 2001
|
||||
From: =?UTF-8?q?J=C3=A1n=20Tomko?= <jtomko@redhat.com>
|
||||
Date: Wed, 6 Mar 2024 17:26:40 +0100
|
||||
Subject: [PATCH] qemu: virtiofs: set correct label when creating the socket
|
||||
MIME-Version: 1.0
|
||||
Content-Type: text/plain; charset=UTF-8
|
||||
Content-Transfer-Encoding: 8bit
|
||||
|
||||
Use svirt_t instead of virtd_t, since virtd_t is not available in the
|
||||
session mode and qemu with svirt_t won't be able to talk to unconfined_t
|
||||
socket.
|
||||
|
||||
Signed-off-by: Ján Tomko <jtomko@redhat.com>
|
||||
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
|
||||
---
|
||||
src/qemu/qemu_virtiofs.c | 2 +-
|
||||
1 file changed, 1 insertion(+), 1 deletion(-)
|
||||
|
||||
diff --git a/src/qemu/qemu_virtiofs.c b/src/qemu/qemu_virtiofs.c
|
||||
index 15dea3bb57f..d80cddd3ba9 100644
|
||||
--- a/src/qemu/qemu_virtiofs.c
|
||||
+++ b/src/qemu/qemu_virtiofs.c
|
||||
@@ -102,7 +102,7 @@ qemuVirtioFSOpenChardev(virQEMUDriver *driver,
|
||||
chrdev->data.nix.listen = true;
|
||||
chrdev->data.nix.path = g_strdup(socket_path);
|
||||
|
||||
- if (qemuSecuritySetDaemonSocketLabel(driver->securityManager, vm->def) < 0)
|
||||
+ if (qemuSecuritySetSocketLabel(driver->securityManager, vm->def) < 0)
|
||||
goto cleanup;
|
||||
fd = qemuOpenChrChardevUNIXSocket(chrdev);
|
||||
if (fd < 0) {
|
||||
+966
-1641
File diff suppressed because it is too large
Load Diff
@@ -1 +1 @@
|
||||
SHA512 (libvirt-10.1.0.tar.xz) = 08e73ae15de5681430b62db85ec9901242dca5e9a4ca9685614f4a67092c6e28f27f9187144b3ceb18ad6b40e6eb1a90b1a4b056b0888724d04a62002ee2bc48
|
||||
SHA512 (libvirt-6.6.0.tar.xz) = 55091addcf43d3c0bdd50f9378b588351181d191272d5a19220a0babe0893c1f6e0f1e41a7f51b8c1fb8e2098236b273e1a18b81573f4008ee3cf65374ba9465
|
||||
|
||||
Reference in New Issue
Block a user