35 lines
1.2 KiB
Diff
35 lines
1.2 KiB
Diff
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From f7693dc747607758e80f9b3e506105461f4455bb Mon Sep 17 00:00:00 2001
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From: Liang Yan <lyan@suse.com>
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Date: Fri, 22 Sep 2017 18:55:33 -0400
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Subject: [PATCH] chardev/baum: fix baum that releases brlapi twice
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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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Error process of baum_chr_open needs to set brlapi null, so it won't
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get released twice in char_braille_finalize, which will cause
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"/usr/bin/qemu-system-x86_64: double free or corruption (!prev)"
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Signed-off-by: Liang Yan <lyan@suse.com>
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Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
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Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
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(cherry picked from commit 98e8790326d732fc79f0c133d9658f4761ba9cb7)
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[LY: BSC#1060045]
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Signed-off-by: Liang Yan <lyan@suse.com>
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---
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chardev/baum.c | 1 +
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1 file changed, 1 insertion(+)
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diff --git a/chardev/baum.c b/chardev/baum.c
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index 302dd9666c..67fd783a59 100644
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--- a/chardev/baum.c
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+++ b/chardev/baum.c
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@@ -643,6 +643,7 @@ static void baum_chr_open(Chardev *chr,
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error_setg(errp, "brlapi__openConnection: %s",
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brlapi_strerror(brlapi_error_location()));
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g_free(handle);
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+ baum->brlapi = NULL;
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return;
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}
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baum->deferred_init = 0;
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