diff --git a/0001-CVE-2021-41072.patch b/0001-CVE-2021-41072.patch
deleted file mode 100644
index 38221b4..0000000
--- a/0001-CVE-2021-41072.patch
+++ /dev/null
@@ -1,126 +0,0 @@
-From 80b8441a37fcf8bf07dacf24d9d6c6459a0f6e36 Mon Sep 17 00:00:00 2001
-From: Phillip Lougher <phillip@squashfs.org.uk>
-Date: Sun, 12 Sep 2021 19:58:19 +0100
-Subject: [PATCH] unsquashfs: use squashfs_closedir() to delete directory
-
-Signed-off-by: Phillip Lougher <phillip@squashfs.org.uk>
----
- squashfs-tools/unsquash-1.c    |  3 +--
- squashfs-tools/unsquash-1234.c | 11 +++++++++--
- squashfs-tools/unsquash-2.c    |  3 +--
- squashfs-tools/unsquash-3.c    |  3 +--
- squashfs-tools/unsquash-4.c    |  3 +--
- squashfs-tools/unsquashfs.c    |  7 -------
- squashfs-tools/unsquashfs.h    |  1 +
- 7 files changed, 14 insertions(+), 17 deletions(-)
-
-diff --git a/squashfs-tools/unsquash-1.c b/squashfs-tools/unsquash-1.c
-index acba821b..7598499d 100644
---- a/squashfs-tools/unsquash-1.c
-+++ b/squashfs-tools/unsquash-1.c
-@@ -373,8 +373,7 @@ static struct dir *squashfs_opendir(unsigned int block_start, unsigned int offse
- 	return dir;
- 
- corrupted:
--	free(dir->dirs);
--	free(dir);
-+	squashfs_closedir(dir);
- 	return NULL;
- }
- 
-diff --git a/squashfs-tools/unsquash-1234.c b/squashfs-tools/unsquash-1234.c
-index c2d4f42b..0c8dfbb6 100644
---- a/squashfs-tools/unsquash-1234.c
-+++ b/squashfs-tools/unsquash-1234.c
-@@ -25,8 +25,8 @@
-  * unsquash-4.
-  */
- 
--#define TRUE 1
--#define FALSE 0
-+#include "unsquashfs.h"
-+
- /*
-  * Check name for validity, name should not
-  *  - be ".", "./", or
-@@ -56,3 +56,10 @@ int check_name(char *name, int size)
- 
- 	return TRUE;
- }
-+
-+
-+void squashfs_closedir(struct dir *dir)
-+{
-+	free(dir->dirs);
-+	free(dir);
-+}
-diff --git a/squashfs-tools/unsquash-2.c b/squashfs-tools/unsquash-2.c
-index 0746b3d4..86f62ba8 100644
---- a/squashfs-tools/unsquash-2.c
-+++ b/squashfs-tools/unsquash-2.c
-@@ -465,8 +465,7 @@ static struct dir *squashfs_opendir(unsigned int block_start, unsigned int offse
- 	return dir;
- 
- corrupted:
--	free(dir->dirs);
--	free(dir);
-+	squashfs_closedir(dir);
- 	return NULL;
- }
- 
-diff --git a/squashfs-tools/unsquash-3.c b/squashfs-tools/unsquash-3.c
-index 094caaa6..c04aa9ee 100644
---- a/squashfs-tools/unsquash-3.c
-+++ b/squashfs-tools/unsquash-3.c
-@@ -499,8 +499,7 @@ static struct dir *squashfs_opendir(unsigned int block_start, unsigned int offse
- 	return dir;
- 
- corrupted:
--	free(dir->dirs);
--	free(dir);
-+	squashfs_closedir(dir);
- 	return NULL;
- }
- 
-diff --git a/squashfs-tools/unsquash-4.c b/squashfs-tools/unsquash-4.c
-index 3a1b9e16..ff62dccc 100644
---- a/squashfs-tools/unsquash-4.c
-+++ b/squashfs-tools/unsquash-4.c
-@@ -436,8 +436,7 @@ static struct dir *squashfs_opendir(unsigned int block_start, unsigned int offse
- 	return dir;
- 
- corrupted:
--	free(dir->dirs);
--	free(dir);
-+	squashfs_closedir(dir);
- 	return NULL;
- }
- 
-diff --git a/squashfs-tools/unsquashfs.c b/squashfs-tools/unsquashfs.c
-index 7b590bd5..04be53cd 100644
---- a/squashfs-tools/unsquashfs.c
-+++ b/squashfs-tools/unsquashfs.c
-@@ -1350,13 +1350,6 @@ unsigned int *offset, unsigned int *type)
- }
- 
- 
--void squashfs_closedir(struct dir *dir)
--{
--	free(dir->dirs);
--	free(dir);
--}
--
--
- char *get_component(char *target, char **targname)
- {
- 	char *start;
-diff --git a/squashfs-tools/unsquashfs.h b/squashfs-tools/unsquashfs.h
-index 2e9201cd..5ecb2ab7 100644
---- a/squashfs-tools/unsquashfs.h
-+++ b/squashfs-tools/unsquashfs.h
-@@ -291,4 +291,5 @@ extern long long *alloc_index_table(int);
- 
- /* unsquash-1234.c */
- extern int check_name(char *, int);
-+extern void squashfs_closedir(struct dir *);
- #endif
diff --git a/0002-CVE-2021-41072.patch b/0002-CVE-2021-41072.patch
deleted file mode 100644
index 00ea2bb..0000000
--- a/0002-CVE-2021-41072.patch
+++ /dev/null
@@ -1,99 +0,0 @@
-From 1993a4e7aeda04962bf26e84c15fba8b58837e10 Mon Sep 17 00:00:00 2001
-From: Phillip Lougher <phillip@squashfs.org.uk>
-Date: Sun, 12 Sep 2021 20:09:13 +0100
-Subject: [PATCH] unsquashfs: dynamically allocate name
-
-Dynamically allocate name rather than store it
-directly in structure.
-
-Signed-off-by: Phillip Lougher <phillip@squashfs.org.uk>
----
- squashfs-tools/unsquash-1.c    | 2 +-
- squashfs-tools/unsquash-1234.c | 5 +++++
- squashfs-tools/unsquash-2.c    | 2 +-
- squashfs-tools/unsquash-3.c    | 2 +-
- squashfs-tools/unsquash-4.c    | 2 +-
- squashfs-tools/unsquashfs.h    | 2 +-
- 6 files changed, 10 insertions(+), 5 deletions(-)
-
-diff --git a/squashfs-tools/unsquash-1.c b/squashfs-tools/unsquash-1.c
-index 7598499d..d0121c6b 100644
---- a/squashfs-tools/unsquash-1.c
-+++ b/squashfs-tools/unsquash-1.c
-@@ -360,7 +360,7 @@ static struct dir *squashfs_opendir(unsigned int block_start, unsigned int offse
- 				dir->dirs = new_dir;
- 			}
- 
--			strcpy(dir->dirs[dir->dir_count].name, dire->name);
-+			dir->dirs[dir->dir_count].name = strdup(dire->name);
- 			dir->dirs[dir->dir_count].start_block =
- 				dirh.start_block;
- 			dir->dirs[dir->dir_count].offset = dire->offset;
-diff --git a/squashfs-tools/unsquash-1234.c b/squashfs-tools/unsquash-1234.c
-index 0c8dfbb6..ac46d9da 100644
---- a/squashfs-tools/unsquash-1234.c
-+++ b/squashfs-tools/unsquash-1234.c
-@@ -60,6 +60,11 @@ int check_name(char *name, int size)
- 
- void squashfs_closedir(struct dir *dir)
- {
-+	int i;
-+
-+	for(i = 0; i < dir->dir_count; i++)
-+		free(dir->dirs[i].name);
-+
- 	free(dir->dirs);
- 	free(dir);
- }
-diff --git a/squashfs-tools/unsquash-2.c b/squashfs-tools/unsquash-2.c
-index 86f62ba8..e8479807 100644
---- a/squashfs-tools/unsquash-2.c
-+++ b/squashfs-tools/unsquash-2.c
-@@ -452,7 +452,7 @@ static struct dir *squashfs_opendir(unsigned int block_start, unsigned int offse
- 				dir->dirs = new_dir;
- 			}
- 
--			strcpy(dir->dirs[dir->dir_count].name, dire->name);
-+			dir->dirs[dir->dir_count].name = strdup(dire->name);
- 			dir->dirs[dir->dir_count].start_block =
- 				dirh.start_block;
- 			dir->dirs[dir->dir_count].offset = dire->offset;
-diff --git a/squashfs-tools/unsquash-3.c b/squashfs-tools/unsquash-3.c
-index c04aa9ee..8223f274 100644
---- a/squashfs-tools/unsquash-3.c
-+++ b/squashfs-tools/unsquash-3.c
-@@ -486,7 +486,7 @@ static struct dir *squashfs_opendir(unsigned int block_start, unsigned int offse
- 				dir->dirs = new_dir;
- 			}
- 
--			strcpy(dir->dirs[dir->dir_count].name, dire->name);
-+			dir->dirs[dir->dir_count].name = strdup(dire->name);
- 			dir->dirs[dir->dir_count].start_block =
- 				dirh.start_block;
- 			dir->dirs[dir->dir_count].offset = dire->offset;
-diff --git a/squashfs-tools/unsquash-4.c b/squashfs-tools/unsquash-4.c
-index ff62dccc..1e199a7c 100644
---- a/squashfs-tools/unsquash-4.c
-+++ b/squashfs-tools/unsquash-4.c
-@@ -423,7 +423,7 @@ static struct dir *squashfs_opendir(unsigned int block_start, unsigned int offse
- 				dir->dirs = new_dir;
- 			}
- 
--			strcpy(dir->dirs[dir->dir_count].name, dire->name);
-+			dir->dirs[dir->dir_count].name = strdup(dire->name);
- 			dir->dirs[dir->dir_count].start_block =
- 				dirh.start_block;
- 			dir->dirs[dir->dir_count].offset = dire->offset;
-diff --git a/squashfs-tools/unsquashfs.h b/squashfs-tools/unsquashfs.h
-index 5ecb2ab7..583fbe4d 100644
---- a/squashfs-tools/unsquashfs.h
-+++ b/squashfs-tools/unsquashfs.h
-@@ -164,7 +164,7 @@ struct queue {
- #define DIR_ENT_SIZE	16
- 
- struct dir_ent	{
--	char		name[SQUASHFS_NAME_LEN + 1];
-+	char		*name;
- 	unsigned int	start_block;
- 	unsigned int	offset;
- 	unsigned int	type;
diff --git a/0003-CVE-2021-41072.patch b/0003-CVE-2021-41072.patch
deleted file mode 100644
index 09fac90..0000000
--- a/0003-CVE-2021-41072.patch
+++ /dev/null
@@ -1,317 +0,0 @@
-From 9938154174756ee48a94ea0b076397a2944b028d Mon Sep 17 00:00:00 2001
-From: Phillip Lougher <phillip@squashfs.org.uk>
-Date: Sun, 12 Sep 2021 22:58:11 +0100
-Subject: [PATCH] unsquashfs: use linked list to store directory names
-
-This should bring higher performance, and it allows sorting
-if necessary (1.x and 2.0 filesystems).
-
-Signed-off-by: Phillip Lougher <phillip@squashfs.org.uk>
----
- squashfs-tools/unsquash-1.c    | 30 +++++++++++++++---------------
- squashfs-tools/unsquash-1234.c | 12 ++++++++----
- squashfs-tools/unsquash-2.c    | 29 +++++++++++++++--------------
- squashfs-tools/unsquash-3.c    | 29 +++++++++++++++--------------
- squashfs-tools/unsquash-4.c    | 29 +++++++++++++++--------------
- squashfs-tools/unsquashfs.c    | 16 ++++++++++------
- squashfs-tools/unsquashfs.h    |  3 ++-
- 7 files changed, 80 insertions(+), 68 deletions(-)
-
-diff --git a/squashfs-tools/unsquash-1.c b/squashfs-tools/unsquash-1.c
-index d0121c6b..b6044341 100644
---- a/squashfs-tools/unsquash-1.c
-+++ b/squashfs-tools/unsquash-1.c
-@@ -254,7 +254,7 @@ static struct dir *squashfs_opendir(unsigned int block_start, unsigned int offse
- 	long long start;
- 	int bytes = 0;
- 	int dir_count, size, res;
--	struct dir_ent *new_dir;
-+	struct dir_ent *ent, *cur_ent = NULL;
- 	struct dir *dir;
- 
- 	TRACE("squashfs_opendir: inode start block %d, offset %d\n",
-@@ -267,7 +267,7 @@ static struct dir *squashfs_opendir(unsigned int block_start, unsigned int offse
- 		MEM_ERROR();
- 
- 	dir->dir_count = 0;
--	dir->cur_entry = 0;
-+	dir->cur_entry = NULL;
- 	dir->mode = (*i)->mode;
- 	dir->uid = (*i)->uid;
- 	dir->guid = (*i)->gid;
-@@ -351,20 +351,20 @@ static struct dir *squashfs_opendir(unsigned int block_start, unsigned int offse
- 				"%d:%d, type %d\n", dire->name,
- 				dirh.start_block, dire->offset, dire->type);
- 
--			if((dir->dir_count % DIR_ENT_SIZE) == 0) {
--				new_dir = realloc(dir->dirs, (dir->dir_count +
--					DIR_ENT_SIZE) * sizeof(struct dir_ent));
--				if(new_dir == NULL)
--					MEM_ERROR();
--
--				dir->dirs = new_dir;
--			}
-+			ent = malloc(sizeof(struct dir_ent));
-+			if(ent == NULL)
-+				MEM_ERROR();
- 
--			dir->dirs[dir->dir_count].name = strdup(dire->name);
--			dir->dirs[dir->dir_count].start_block =
--				dirh.start_block;
--			dir->dirs[dir->dir_count].offset = dire->offset;
--			dir->dirs[dir->dir_count].type = dire->type;
-+			ent->name = strdup(dire->name);
-+			ent->start_block = dirh.start_block;
-+			ent->offset = dire->offset;
-+			ent->type = dire->type;
-+			ent->next = NULL;
-+			if(cur_ent == NULL)
-+				dir->dirs = ent;
-+			else
-+				cur_ent->next = ent;
-+			cur_ent = ent;
- 			dir->dir_count ++;
- 			bytes += dire->size + 1;
- 		}
-diff --git a/squashfs-tools/unsquash-1234.c b/squashfs-tools/unsquash-1234.c
-index ac46d9da..e389f8d6 100644
---- a/squashfs-tools/unsquash-1234.c
-+++ b/squashfs-tools/unsquash-1234.c
-@@ -60,11 +60,15 @@ int check_name(char *name, int size)
- 
- void squashfs_closedir(struct dir *dir)
- {
--	int i;
-+	struct dir_ent *ent = dir->dirs;
- 
--	for(i = 0; i < dir->dir_count; i++)
--		free(dir->dirs[i].name);
-+	while(ent) {
-+		struct dir_ent *tmp = ent;
-+
-+		ent = ent->next;
-+		free(tmp->name);
-+		free(tmp);
-+	}
- 
--	free(dir->dirs);
- 	free(dir);
- }
-diff --git a/squashfs-tools/unsquash-2.c b/squashfs-tools/unsquash-2.c
-index e8479807..956f96f4 100644
---- a/squashfs-tools/unsquash-2.c
-+++ b/squashfs-tools/unsquash-2.c
-@@ -347,7 +347,7 @@ static struct dir *squashfs_opendir(unsigned int block_start, unsigned int offse
- 	long long start;
- 	int bytes = 0;
- 	int dir_count, size, res;
--	struct dir_ent *new_dir;
-+	struct dir_ent *ent, *cur_ent = NULL;
- 	struct dir *dir;
- 
- 	TRACE("squashfs_opendir: inode start block %d, offset %d\n",
-@@ -360,7 +360,7 @@ static struct dir *squashfs_opendir(unsigned int block_start, unsigned int offse
- 		MEM_ERROR();
- 
- 	dir->dir_count = 0;
--	dir->cur_entry = 0;
-+	dir->cur_entry = NULL;
- 	dir->mode = (*i)->mode;
- 	dir->uid = (*i)->uid;
- 	dir->guid = (*i)->gid;
-@@ -444,19 +444,20 @@ static struct dir *squashfs_opendir(unsigned int block_start, unsigned int offse
- 				"%d:%d, type %d\n", dire->name,
- 				dirh.start_block, dire->offset, dire->type);
- 
--			if((dir->dir_count % DIR_ENT_SIZE) == 0) {
--				new_dir = realloc(dir->dirs, (dir->dir_count +
--					DIR_ENT_SIZE) * sizeof(struct dir_ent));
--				if(new_dir == NULL)
--					MEM_ERROR();
--				dir->dirs = new_dir;
--			}
-+			ent = malloc(sizeof(struct dir_ent));
-+			if(ent == NULL)
-+				MEM_ERROR();
- 
--			dir->dirs[dir->dir_count].name = strdup(dire->name);
--			dir->dirs[dir->dir_count].start_block =
--				dirh.start_block;
--			dir->dirs[dir->dir_count].offset = dire->offset;
--			dir->dirs[dir->dir_count].type = dire->type;
-+			ent->name = strdup(dire->name);
-+			ent->start_block = dirh.start_block;
-+			ent->offset = dire->offset;
-+			ent->type = dire->type;
-+			ent->next = NULL;
-+			if(cur_ent == NULL)
-+				dir->dirs = ent;
-+			else
-+				cur_ent->next = ent;
-+			cur_ent = ent;
- 			dir->dir_count ++;
- 			bytes += dire->size + 1;
- 		}
-diff --git a/squashfs-tools/unsquash-3.c b/squashfs-tools/unsquash-3.c
-index 8223f274..835a574c 100644
---- a/squashfs-tools/unsquash-3.c
-+++ b/squashfs-tools/unsquash-3.c
-@@ -381,7 +381,7 @@ static struct dir *squashfs_opendir(unsigned int block_start, unsigned int offse
- 	long long start;
- 	int bytes = 0;
- 	int dir_count, size, res;
--	struct dir_ent *new_dir;
-+	struct dir_ent *ent, *cur_ent = NULL;
- 	struct dir *dir;
- 
- 	TRACE("squashfs_opendir: inode start block %d, offset %d\n",
-@@ -394,7 +394,7 @@ static struct dir *squashfs_opendir(unsigned int block_start, unsigned int offse
- 		MEM_ERROR();
- 
- 	dir->dir_count = 0;
--	dir->cur_entry = 0;
-+	dir->cur_entry = NULL;
- 	dir->mode = (*i)->mode;
- 	dir->uid = (*i)->uid;
- 	dir->guid = (*i)->gid;
-@@ -478,19 +478,20 @@ static struct dir *squashfs_opendir(unsigned int block_start, unsigned int offse
- 				"%d:%d, type %d\n", dire->name,
- 				dirh.start_block, dire->offset, dire->type);
- 
--			if((dir->dir_count % DIR_ENT_SIZE) == 0) {
--				new_dir = realloc(dir->dirs, (dir->dir_count +
--					DIR_ENT_SIZE) * sizeof(struct dir_ent));
--				if(new_dir == NULL)
--					MEM_ERROR();
--				dir->dirs = new_dir;
--			}
-+			ent = malloc(sizeof(struct dir_ent));
-+			if(ent == NULL)
-+				MEM_ERROR();
- 
--			dir->dirs[dir->dir_count].name = strdup(dire->name);
--			dir->dirs[dir->dir_count].start_block =
--				dirh.start_block;
--			dir->dirs[dir->dir_count].offset = dire->offset;
--			dir->dirs[dir->dir_count].type = dire->type;
-+			ent->name = strdup(dire->name);
-+			ent->start_block = dirh.start_block;
-+			ent->offset = dire->offset;
-+			ent->type = dire->type;
-+			ent->next = NULL;
-+			if(cur_ent == NULL)
-+				dir->dirs = ent;
-+			else
-+				cur_ent->next = ent;
-+			cur_ent = ent;
- 			dir->dir_count ++;
- 			bytes += dire->size + 1;
- 		}
-diff --git a/squashfs-tools/unsquash-4.c b/squashfs-tools/unsquash-4.c
-index 1e199a7c..694783da 100644
---- a/squashfs-tools/unsquash-4.c
-+++ b/squashfs-tools/unsquash-4.c
-@@ -331,7 +331,7 @@ static struct dir *squashfs_opendir(unsigned int block_start, unsigned int offse
- 	struct squashfs_dir_entry *dire = (struct squashfs_dir_entry *) buffer;
- 	long long start;
- 	int bytes = 0, dir_count, size, res;
--	struct dir_ent *new_dir;
-+	struct dir_ent *ent, *cur_ent = NULL;
- 	struct dir *dir;
- 
- 	TRACE("squashfs_opendir: inode start block %d, offset %d\n",
-@@ -344,7 +344,7 @@ static struct dir *squashfs_opendir(unsigned int block_start, unsigned int offse
- 		MEM_ERROR();
- 
- 	dir->dir_count = 0;
--	dir->cur_entry = 0;
-+	dir->cur_entry = NULL;
- 	dir->mode = (*i)->mode;
- 	dir->uid = (*i)->uid;
- 	dir->guid = (*i)->gid;
-@@ -415,19 +415,20 @@ static struct dir *squashfs_opendir(unsigned int block_start, unsigned int offse
- 				"%d:%d, type %d\n", dire->name,
- 				dirh.start_block, dire->offset, dire->type);
- 
--			if((dir->dir_count % DIR_ENT_SIZE) == 0) {
--				new_dir = realloc(dir->dirs, (dir->dir_count +
--					DIR_ENT_SIZE) * sizeof(struct dir_ent));
--				if(new_dir == NULL)
--					MEM_ERROR();
--				dir->dirs = new_dir;
--			}
-+			ent = malloc(sizeof(struct dir_ent));
-+			if(ent == NULL)
-+				MEM_ERROR();
- 
--			dir->dirs[dir->dir_count].name = strdup(dire->name);
--			dir->dirs[dir->dir_count].start_block =
--				dirh.start_block;
--			dir->dirs[dir->dir_count].offset = dire->offset;
--			dir->dirs[dir->dir_count].type = dire->type;
-+			ent->name = strdup(dire->name);
-+			ent->start_block = dirh.start_block;
-+			ent->offset = dire->offset;
-+			ent->type = dire->type;
-+			ent->next = NULL;
-+			if(cur_ent == NULL)
-+				dir->dirs = ent;
-+			else
-+				cur_ent->next = ent;
-+			cur_ent = ent;
- 			dir->dir_count ++;
- 			bytes += dire->size + 1;
- 		}
-diff --git a/squashfs-tools/unsquashfs.c b/squashfs-tools/unsquashfs.c
-index 04be53cd..fee28ec1 100644
---- a/squashfs-tools/unsquashfs.c
-+++ b/squashfs-tools/unsquashfs.c
-@@ -1337,14 +1337,18 @@ int create_inode(char *pathname, struct inode *i)
- int squashfs_readdir(struct dir *dir, char **name, unsigned int *start_block,
- unsigned int *offset, unsigned int *type)
- {
--	if(dir->cur_entry == dir->dir_count)
-+	if(dir->cur_entry == NULL)
-+		dir->cur_entry = dir->dirs;
-+	else
-+		dir->cur_entry = dir->cur_entry->next;
-+
-+	if(dir->cur_entry == NULL)
- 		return FALSE;
- 
--	*name = dir->dirs[dir->cur_entry].name;
--	*start_block = dir->dirs[dir->cur_entry].start_block;
--	*offset = dir->dirs[dir->cur_entry].offset;
--	*type = dir->dirs[dir->cur_entry].type;
--	dir->cur_entry ++;
-+	*name = dir->cur_entry->name;
-+	*start_block = dir->cur_entry->start_block;
-+	*offset = dir->cur_entry->offset;
-+	*type = dir->cur_entry->type;
- 
- 	return TRUE;
- }
-diff --git a/squashfs-tools/unsquashfs.h b/squashfs-tools/unsquashfs.h
-index 583fbe4d..f8cf78cb 100644
---- a/squashfs-tools/unsquashfs.h
-+++ b/squashfs-tools/unsquashfs.h
-@@ -168,17 +168,18 @@ struct dir_ent	{
- 	unsigned int	start_block;
- 	unsigned int	offset;
- 	unsigned int	type;
-+	struct dir_ent	*next;
- };
- 
- struct dir {
- 	int		dir_count;
--	int 		cur_entry;
- 	unsigned int	mode;
- 	uid_t		uid;
- 	gid_t		guid;
- 	unsigned int	mtime;
- 	unsigned int	xattr;
- 	struct dir_ent	*dirs;
-+	struct dir_ent	*cur_entry;
- };
- 
- struct file_entry {
diff --git a/0004-CVE-2021-41072.patch b/0004-CVE-2021-41072.patch
deleted file mode 100644
index e630afe..0000000
--- a/0004-CVE-2021-41072.patch
+++ /dev/null
@@ -1,317 +0,0 @@
-From e0485802ec72996c20026da320650d8362f555bd Mon Sep 17 00:00:00 2001
-From: Phillip Lougher <phillip@squashfs.org.uk>
-Date: Sun, 12 Sep 2021 23:50:06 +0100
-Subject: [PATCH] Unsquashfs: additional write outside destination directory
- exploit fix
-
-An issue on github (https://github.com/plougher/squashfs-tools/issues/72)
-showed how some specially crafted Squashfs filesystems containing
-invalid file names (with '/' and '..') can cause Unsquashfs to write
-files outside of the destination directory.
-
-Since then it has been shown that specially crafted Squashfs filesystems
-that contain a symbolic link pointing outside of the destination directory,
-coupled with an identically named file within the same directory, can
-cause Unsquashfs to write files outside of the destination directory.
-
-Specifically the symbolic link produces a pathname pointing outside
-of the destination directory, which is then followed when writing the
-duplicate identically named file within the directory.
-
-This commit fixes this exploit by explictly checking for duplicate
-filenames within a directory.  As directories in v2.1, v3.x, and v4.0
-filesystems are sorted, this is achieved by checking for consecutively
-identical filenames.  Additionally directories are checked to
-ensure they are sorted, to avoid attempts to evade the duplicate
-check.
-
-Version 1.x and 2.0 filesystems (where the directories were unsorted)
-are sorted and then the above duplicate filename check is applied.
-
-Signed-off-by: Phillip Lougher <phillip@squashfs.org.uk>
----
- squashfs-tools/Makefile        |   6 +-
- squashfs-tools/unsquash-1.c    |   6 ++
- squashfs-tools/unsquash-12.c   | 110 +++++++++++++++++++++++++++++++++
- squashfs-tools/unsquash-1234.c |  21 +++++++
- squashfs-tools/unsquash-2.c    |  16 +++++
- squashfs-tools/unsquash-3.c    |   6 ++
- squashfs-tools/unsquash-4.c    |   6 ++
- squashfs-tools/unsquashfs.h    |   4 ++
- 8 files changed, 173 insertions(+), 2 deletions(-)
- create mode 100644 squashfs-tools/unsquash-12.c
-
-diff --git a/squashfs-tools/Makefile b/squashfs-tools/Makefile
-index 7262a2e0..1b544ed6 100755
---- a/squashfs-tools/Makefile
-+++ b/squashfs-tools/Makefile
-@@ -160,8 +160,8 @@ MKSQUASHFS_OBJS = mksquashfs.o read_fs.o action.o swap.o pseudo.o compressor.o \
- 	caches-queues-lists.o reader.o tar.o
- 
- UNSQUASHFS_OBJS = unsquashfs.o unsquash-1.o unsquash-2.o unsquash-3.o \
--	unsquash-4.o unsquash-123.o unsquash-34.o unsquash-1234.o swap.o \
--	compressor.o unsquashfs_info.o
-+	unsquash-4.o unsquash-123.o unsquash-34.o unsquash-1234.o unsquash-12.o \
-+	swap.o compressor.o unsquashfs_info.o
- 
- CFLAGS ?= -O2
- CFLAGS += $(EXTRA_CFLAGS) $(INCLUDEDIR) -D_FILE_OFFSET_BITS=64 \
-@@ -393,6 +393,8 @@ unsquash-34.o: unsquashfs.h unsquash-34.c unsquashfs_error.h
- 
- unsquash-1234.o: unsquash-1234.c unsquashfs_error.h
- 
-+unsquash-1234.o: unsquash-12.c
-+
- unsquashfs_xattr.o: unsquashfs_xattr.c unsquashfs.h squashfs_fs.h xattr.h unsquashfs_error.h
- 
- unsquashfs_info.o: unsquashfs.h squashfs_fs.h unsquashfs_error.h
-diff --git a/squashfs-tools/unsquash-1.c b/squashfs-tools/unsquash-1.c
-index b6044341..88866fcd 100644
---- a/squashfs-tools/unsquash-1.c
-+++ b/squashfs-tools/unsquash-1.c
-@@ -370,6 +370,12 @@ static struct dir *squashfs_opendir(unsigned int block_start, unsigned int offse
- 		}
- 	}
- 
-+	/* check directory for duplicate names.  Need to sort directory first */
-+	sort_directory(dir);
-+	if(check_directory(dir) == FALSE) {
-+		ERROR("File system corrupted: directory has duplicate names\n");
-+		goto corrupted;
-+	}
- 	return dir;
- 
- corrupted:
-diff --git a/squashfs-tools/unsquash-12.c b/squashfs-tools/unsquash-12.c
-new file mode 100644
-index 00000000..61bf1284
---- /dev/null
-+++ b/squashfs-tools/unsquash-12.c
-@@ -0,0 +1,110 @@
-+/*
-+ * Unsquash a squashfs filesystem.  This is a highly compressed read only
-+ * filesystem.
-+ *
-+ * Copyright (c) 2021
-+ * Phillip Lougher <phillip@squashfs.org.uk>
-+ *
-+ * This program is free software; you can redistribute it and/or
-+ * modify it under the terms of the GNU General Public License
-+ * as published by the Free Software Foundation; either version 2,
-+ * or (at your option) any later version.
-+ *
-+ * This program is distributed in the hope that it will be useful,
-+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
-+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-+ * GNU General Public License for more details.
-+ *
-+ * You should have received a copy of the GNU General Public License
-+ * along with this program; if not, write to the Free Software
-+ * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-+ *
-+ * unsquash-12.c
-+ *
-+ * Helper functions used by unsquash-1 and unsquash-2.
-+ */
-+
-+#include "unsquashfs.h"
-+
-+/*
-+ * Bottom up linked list merge sort.
-+ *
-+ */
-+void sort_directory(struct dir *dir)
-+{
-+	struct dir_ent *cur, *l1, *l2, *next;
-+	int len1, len2, stride = 1;
-+
-+	if(dir->dir_count < 2)
-+		return;
-+
-+	/*
-+	 * We can consider our linked-list to be made up of stride length
-+	 * sublists.  Eacn iteration around this loop merges adjacent
-+	 * stride length sublists into larger 2*stride sublists.  We stop
-+	 * when stride becomes equal to the entire list.
-+	 *
-+	 * Initially stride = 1 (by definition a sublist of 1 is sorted), and
-+	 * these 1 element sublists are merged into 2 element sublists,  which
-+	 * are then merged into 4 element sublists and so on.
-+	 */
-+	do {
-+		l2 = dir->dirs; /* head of current linked list */
-+		cur = NULL; /* empty output list */
-+
-+		/*
-+		 * Iterate through the linked list, merging adjacent sublists.
-+		 * On each interation l2 points to the next sublist pair to be
-+		 * merged (if there's only one sublist left this is simply added
-+		 * to the output list)
-+		 */
-+		while(l2) {
-+			l1 = l2;
-+			for(len1 = 0; l2 && len1 < stride; len1 ++, l2 = l2->next);
-+			len2 = stride;
-+
-+			/*
-+			 * l1 points to first sublist.
-+			 * l2 points to second sublist.
-+			 * Merge them onto the output list
-+			 */
-+			while(len1 && l2 && len2) {
-+				if(strcmp(l1->name, l2->name) <= 0) {
-+					next = l1;
-+					l1 = l1->next;
-+					len1 --;
-+				} else {
-+					next = l2;
-+					l2 = l2->next;
-+					len2 --;
-+				}
-+
-+				if(cur) {
-+					cur->next = next;
-+					cur = next;
-+				} else
-+					dir->dirs = cur = next;
-+			}
-+			/*
-+			 * One sublist is now empty, copy the other one onto the
-+			 * output list
-+			 */
-+			for(; len1; len1 --, l1 = l1->next) {
-+				if(cur) {
-+					cur->next = l1;
-+					cur = l1;
-+				} else
-+					dir->dirs = cur = l1;
-+			}
-+			for(; l2 && len2; len2 --, l2 = l2->next) {
-+				if(cur) {
-+					cur->next = l2;
-+					cur = l2;
-+				} else
-+					dir->dirs = cur = l2;
-+			}
-+		}
-+		cur->next = NULL;
-+		stride = stride << 1;
-+	} while(stride < dir->dir_count);
-+}
-diff --git a/squashfs-tools/unsquash-1234.c b/squashfs-tools/unsquash-1234.c
-index e389f8d6..98a81ed0 100644
---- a/squashfs-tools/unsquash-1234.c
-+++ b/squashfs-tools/unsquash-1234.c
-@@ -72,3 +72,24 @@ void squashfs_closedir(struct dir *dir)
- 
- 	free(dir);
- }
-+
-+
-+/*
-+ * Check directory for duplicate names.  As the directory should be sorted,
-+ * duplicates will be consecutive.  Obviously we also need to check if the
-+ * directory has been deliberately unsorted, to evade this check.
-+ */
-+int check_directory(struct dir *dir)
-+{
-+	int i;
-+	struct dir_ent *ent;
-+
-+	if(dir->dir_count < 2)
-+		return TRUE;
-+
-+	for(ent = dir->dirs, i = 0; i < dir->dir_count - 1; ent = ent->next, i++)
-+		if(strcmp(ent->name, ent->next->name) >= 0)
-+			return FALSE;
-+
-+	return TRUE;
-+}
-diff --git a/squashfs-tools/unsquash-2.c b/squashfs-tools/unsquash-2.c
-index 956f96f4..0e36f7d5 100644
---- a/squashfs-tools/unsquash-2.c
-+++ b/squashfs-tools/unsquash-2.c
-@@ -29,6 +29,7 @@
- static squashfs_fragment_entry_2 *fragment_table;
- static unsigned int *uid_table, *guid_table;
- static squashfs_operations ops;
-+static int needs_sorting = FALSE;
- 
- 
- static void read_block_list(unsigned int *block_list, long long start,
-@@ -463,6 +464,17 @@ static struct dir *squashfs_opendir(unsigned int block_start, unsigned int offse
- 		}
- 	}
- 
-+	if(needs_sorting)
-+		sort_directory(dir);
-+
-+	/* check directory for duplicate names and sorting */
-+	if(check_directory(dir) == FALSE) {
-+		if(needs_sorting)
-+			ERROR("File system corrupted: directory has duplicate names\n");
-+		else
-+			ERROR("File system corrupted: directory has duplicate names or is unsorted\n");
-+		goto corrupted;
-+	}
- 	return dir;
- 
- corrupted:
-@@ -596,6 +608,10 @@ int read_super_2(squashfs_operations **s_ops, void *s)
- 	 * 2.x filesystems use gzip compression.
- 	 */
- 	comp = lookup_compressor("gzip");
-+
-+	if(sBlk_3->s_minor == 0)
-+		needs_sorting = TRUE;
-+
- 	return TRUE;
- }
- 
-diff --git a/squashfs-tools/unsquash-3.c b/squashfs-tools/unsquash-3.c
-index 835a574c..01235626 100644
---- a/squashfs-tools/unsquash-3.c
-+++ b/squashfs-tools/unsquash-3.c
-@@ -497,6 +497,12 @@ static struct dir *squashfs_opendir(unsigned int block_start, unsigned int offse
- 		}
- 	}
- 
-+	/* check directory for duplicate names and sorting */
-+	if(check_directory(dir) == FALSE) {
-+		ERROR("File system corrupted: directory has duplicate names or is unsorted\n");
-+		goto corrupted;
-+	}
-+
- 	return dir;
- 
- corrupted:
-diff --git a/squashfs-tools/unsquash-4.c b/squashfs-tools/unsquash-4.c
-index 694783da..c615bb83 100644
---- a/squashfs-tools/unsquash-4.c
-+++ b/squashfs-tools/unsquash-4.c
-@@ -434,6 +434,12 @@ static struct dir *squashfs_opendir(unsigned int block_start, unsigned int offse
- 		}
- 	}
- 
-+	/* check directory for duplicate names and sorting */
-+	if(check_directory(dir) == FALSE) {
-+		ERROR("File system corrupted: directory has duplicate names or is unsorted\n");
-+		goto corrupted;
-+	}
-+
- 	return dir;
- 
- corrupted:
-diff --git a/squashfs-tools/unsquashfs.h b/squashfs-tools/unsquashfs.h
-index f8cf78cb..bf2a80d0 100644
---- a/squashfs-tools/unsquashfs.h
-+++ b/squashfs-tools/unsquashfs.h
-@@ -293,4 +293,8 @@ extern long long *alloc_index_table(int);
- /* unsquash-1234.c */
- extern int check_name(char *, int);
- extern void squashfs_closedir(struct dir *);
-+extern int check_directory(struct dir *);
-+
-+/* unsquash-12.c */
-+extern void sort_directory(struct dir *);
- #endif
diff --git a/0005-CVE-2021-41072.patch b/0005-CVE-2021-41072.patch
deleted file mode 100644
index 7857fb6..0000000
--- a/0005-CVE-2021-41072.patch
+++ /dev/null
@@ -1,23 +0,0 @@
-From 19fcc9365dcdb2c22d232d42d11012940df64b7c Mon Sep 17 00:00:00 2001
-From: Phillip Lougher <phillip@squashfs.org.uk>
-Date: Tue, 14 Sep 2021 05:41:27 +0100
-Subject: [PATCH] Unsquashfs: Add makefile entry for unsquash-12.o
-
-Signed-off-by: Phillip Lougher <phillip@squashfs.org.uk>
----
- squashfs-tools/Makefile | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/squashfs-tools/Makefile b/squashfs-tools/Makefile
-index 1b544ed6..5d6a8de2 100755
---- a/squashfs-tools/Makefile
-+++ b/squashfs-tools/Makefile
-@@ -393,7 +393,7 @@ unsquash-34.o: unsquashfs.h unsquash-34.c unsquashfs_error.h
- 
- unsquash-1234.o: unsquash-1234.c unsquashfs_error.h
- 
--unsquash-1234.o: unsquash-12.c
-+unsquash-12.o: unsquash-12.c unsquashfs.h
- 
- unsquashfs_xattr.o: unsquashfs_xattr.c unsquashfs.h squashfs_fs.h xattr.h unsquashfs_error.h
- 
diff --git a/squashfs-tools-4.5.1.tar.gz b/squashfs-tools-4.5.1.tar.gz
new file mode 100644
index 0000000..6fa420b
Binary files /dev/null and b/squashfs-tools-4.5.1.tar.gz differ
diff --git a/squashfs-tools.spec b/squashfs-tools.spec
index c6b14ff..c6da5e5 100644
--- a/squashfs-tools.spec
+++ b/squashfs-tools.spec
@@ -1,17 +1,11 @@
 Name:     squashfs-tools
-Version:  4.5
+Version:  4.5.1
 Release:  1
 Summary:  Utility for the squashfs filesystems
 License:  GPLv2+
 URL:      http://squashfs.sourceforge.net/
 
-Source0:  http://downloads.sourceforge.net/squashfs/squashfs%{version}.tar.gz
-
-Patch1:  0001-CVE-2021-41072.patch
-Patch2:  0002-CVE-2021-41072.patch
-Patch3:  0003-CVE-2021-41072.patch
-Patch4:  0004-CVE-2021-41072.patch
-Patch5:  0005-CVE-2021-41072.patch
+Source0:  http://downloads.sourceforge.net/squashfs/squashfs-tools-%{version}.tar.gz
 
 BuildRequires: zlib-devel xz-devel libzstd-devel 
 BuildRequires: lzo-devel libattr-devel lz4-devel gcc
@@ -34,7 +28,7 @@ install -D -m 755 squashfs-tools/unsquashfs %{buildroot}%{_sbindir}/unsquashfs
 
 %files
 %defattr(-,root,root)
-%doc ACKNOWLEDGEMENTS README-4.5
+%doc ACKNOWLEDGEMENTS README-4.5.1
 %license COPYING
 %{_sbindir}/mksquashfs
 %{_sbindir}/unsquashfs
@@ -42,6 +36,9 @@ install -D -m 755 squashfs-tools/unsquashfs %{buildroot}%{_sbindir}/unsquashfs
 
 
 %changelog
+* Sat Aug 13 2022 volcanodragon <linfeilong@huawei.com> - 4.5.1-1
+- update version to 4.5.1
+
 * Thu Nov 25 2021 yanglongkang <yanglongkang@huawei.com> - 4.5-1
 - update to 4.5
 
diff --git a/squashfs4.5.tar.gz b/squashfs4.5.tar.gz
deleted file mode 100644
index 070de00..0000000
Binary files a/squashfs4.5.tar.gz and /dev/null differ