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From 0293adf3792eeb797c498feefa178309d28c4803 Mon Sep 17 00:00:00 2001
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Message-Id: <0293adf3792eeb797c498feefa178309d28c4803@dist-git>
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From: =?UTF-8?q?J=C3=A1n=20Tomko?= <jtomko@redhat.com>
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Date: Wed, 30 Sep 2020 17:38:15 +0200
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Subject: [PATCH] qemu: agent: set ifname to NULL after freeing
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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
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CVE-2020-25637
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Signed-off-by: Ján Tomko <jtomko@redhat.com>
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Reported-by: Ilja Van Sprundel <ivansprundel@ioactive.com>
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Fixes: 0977b8aa071de550e1a013d35e2c72615e65d520
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Reviewed-by: Mauro Matteo Cascella <mcascell@redhat.com>
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(cherry picked from commit a63b48c5ecef077bf0f909a85f453a605600cf05)
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Signed-off-by: Ján Tomko <jtomko@redhat.com>
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Conflicts: src/qemu/qemu_agent.c
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Commit ee247e1d which switched virStringListFree
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to g_strfreev is missing downstream.
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Message-Id: <c1f5b852a6ca4afaebf4fae7633b32dbe91af328.1601480224.git.jtomko@redhat.com>
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Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
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---
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src/qemu/qemu_agent.c | 1 +
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1 file changed, 1 insertion(+)
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diff --git a/src/qemu/qemu_agent.c b/src/qemu/qemu_agent.c
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index d6fd02a4b6..35bef8636d 100644
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--- a/src/qemu/qemu_agent.c
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+++ b/src/qemu/qemu_agent.c
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@@ -2055,6 +2055,7 @@ qemuAgentGetInterfaces(qemuAgentPtr mon,
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/* Has to be freed for each interface. */
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virStringListFree(ifname);
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+ ifname = NULL;
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/* as well as IP address which - moreover -
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* can be presented multiple times */
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--
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2.28.0
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