[PULL 02/12] microvm: fix memory leak in microvm_fix_kernel_cmdline

[Paolo Bonzini]

From: Sergio Lopez <address@hidden>

In microvm_fix_kernel_cmdline(), fw_cfg_modify_string() is duplicating
cmdline instead of taking ownership of it. Free it afterwards to avoid
leaking it.

Reported-by: Coverity (CID 1407218)
Suggested-by: Peter Maydell <address@hidden>
Signed-off-by: Sergio Lopez <address@hidden>
Message-Id: <address@hidden>
Signed-off-by: Paolo Bonzini <address@hidden>
---
 hw/i386/microvm.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/hw/i386/microvm.c b/hw/i386/microvm.c
index 8aacd6c..def37e6 100644
--- a/hw/i386/microvm.c
+++ b/hw/i386/microvm.c
@@ -331,6 +331,8 @@ static void microvm_fix_kernel_cmdline(MachineState 
*machine)
 
     fw_cfg_modify_i32(x86ms->fw_cfg, FW_CFG_CMDLINE_SIZE, strlen(cmdline) + 1);
     fw_cfg_modify_string(x86ms->fw_cfg, FW_CFG_CMDLINE_DATA, cmdline);
+
+    g_free(cmdline);
 }
 
 static void microvm_machine_state_init(MachineState *machine)
-- 
1.8.3.1