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From e22ab3412457f4d804ad7b0f62bd37ae07ec186d Mon Sep 17 00:00:00 2001
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Message-Id: <e22ab3412457f4d804ad7b0f62bd37ae07ec186d@dist-git>
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From: Peter Krempa <pkrempa@redhat.com>
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Date: Tue, 5 Feb 2019 10:20:33 +0100
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Subject: [PATCH] qemu: caps: Don't try to ask for CAP_DAC_OVERRIDE if non-root
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It will not work. This breaks qemu capabilities probing as a user.
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Signed-off-by: Peter Krempa <pkrempa@redhat.com>
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Reviewed-by: Erik Skultety <eskultet@redhat.com>
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(cherry picked from commit 620d9dd598fde388f56ac37bcd3b31168c2f9fc6)
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https: //bugzilla.redhat.com/show_bug.cgi?id=1665400
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Signed-off-by: Erik Skultety <eskultet@redhat.com>
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Reviewed-by: Ján Tomko <jtomko@redhat.com>
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---
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 src/qemu/qemu_capabilities.c | 3 ++-
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 1 file changed, 2 insertions(+), 1 deletion(-)
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diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
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index f71cd08f4d..912f758bcd 100644
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--- a/src/qemu/qemu_capabilities.c
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+++ b/src/qemu/qemu_capabilities.c
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@@ -4482,7 +4482,8 @@ virQEMUCapsInitQMPCommandRun(virQEMUCapsInitQMPCommandPtr cmd,
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 #if WITH_CAPNG
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     /* QEMU might run into permission issues, e.g. /dev/sev (0600), override
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      * them just for the purpose of probing */
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-    virCommandAllowCap(cmd->cmd, CAP_DAC_OVERRIDE);
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+    if (geteuid() == 0)
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+        virCommandAllowCap(cmd->cmd, CAP_DAC_OVERRIDE);
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 #endif
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     virCommandSetGID(cmd->cmd, cmd->runGid);
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-- 
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2.20.1
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