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https://src.fedoraproject.org/rpms/grub2.git
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67 lines
1.8 KiB
Diff
67 lines
1.8 KiB
Diff
From c62405b0f7b966a7efb3642b3db14469d9b82ba8 Mon Sep 17 00:00:00 2001
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From: Vladimir 'phcoder' Serbinenko <phcoder@gmail.com>
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Date: Sat, 4 May 2013 13:50:16 +0200
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Subject: [PATCH 419/471] * grub-core/normal/main.c: Fix freed memory
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dereference.
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---
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ChangeLog | 4 ++++
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grub-core/normal/main.c | 13 ++++++++++---
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2 files changed, 14 insertions(+), 3 deletions(-)
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diff --git a/ChangeLog b/ChangeLog
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index 47f06fd..16456f0 100644
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--- a/ChangeLog
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+++ b/ChangeLog
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@@ -1,5 +1,9 @@
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2013-05-04 Vladimir Serbinenko <phcoder@gmail.com>
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+ * grub-core/normal/main.c: Fix freed memory dereference.
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+
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+2013-05-04 Vladimir Serbinenko <phcoder@gmail.com>
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+
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Fix several memory leaks.
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2013-05-04 Vladimir Serbinenko <phcoder@gmail.com>
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diff --git a/grub-core/normal/main.c b/grub-core/normal/main.c
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index f7a815f..ffc2cd2 100644
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--- a/grub-core/normal/main.c
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+++ b/grub-core/normal/main.c
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@@ -163,8 +163,9 @@ static grub_menu_t
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read_config_file (const char *config)
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{
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grub_file_t file;
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- const char *old_file, *old_dir;
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+ char *old_file = 0, *old_dir = 0;
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char *config_dir, *ptr = 0;
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+ const char *ctmp;
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grub_menu_t newmenu;
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@@ -183,8 +184,12 @@ read_config_file (const char *config)
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if (! file)
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return 0;
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- old_file = grub_env_get ("config_file");
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- old_dir = grub_env_get ("config_directory");
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+ ctmp = grub_env_get ("config_file");
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+ if (ctmp)
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+ old_file = grub_strdup (ctmp);
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+ ctmp = grub_env_get ("config_directory");
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+ if (ctmp)
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+ old_dir = grub_strdup (ctmp);
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grub_env_set ("config_file", config);
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config_dir = grub_strdup (config);
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if (config_dir)
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@@ -220,6 +225,8 @@ read_config_file (const char *config)
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grub_env_set ("config_directory", old_dir);
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else
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grub_env_unset ("config_directory");
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+ grub_free (old_file);
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+ grub_free (old_dir);
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grub_file_close (file);
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--
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1.8.2.1
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