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From 5fcfccb39089febb89945b841f489b5acc7638ce Mon Sep 17 00:00:00 2001
From: Lane Winner <lane.winner@oracle.com>
Date: Tue, 24 Apr 2012 12:58:57 -0500
Subject: [PATCH 5/5] make_boot_var does not check for failed status with
create_variable. This can result in a memory leak.
Additionally the user should be notified of the
problem.
We encounter this issue on one system after filling up the UEFI boot list
with dummy devices.
The patch fix the problem. It was verified on a Mensa system using RHEL 6.0
Signed-off-by: Yinghai Lu<yinghai@kernel.org>
---
src/efibootmgr/efibootmgr.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/src/efibootmgr/efibootmgr.c b/src/efibootmgr/efibootmgr.c
index de67af0..236365a 100644
--- a/src/efibootmgr/efibootmgr.c
+++ b/src/efibootmgr/efibootmgr.c
@@ -239,6 +239,7 @@ warn_duplicate_name(list_t *boot_list)
static var_entry_t *
make_boot_var(list_t *boot_list)
{
+ efi_status_t status;
var_entry_t *boot;
int free_number;
list_t *pos;
@@ -271,7 +272,12 @@ make_boot_var(list_t *boot_list)
free(boot);
return NULL;
}
- create_variable(&boot->var_data);
+
+ status = create_variable(&boot->var_data);
+ if (status != EFI_SUCCESS) {
+ free(boot);
+ return NULL;
+ }
list_add_tail(&boot->list, boot_list);
return boot;
}
--
1.8.0
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