aboutsummaryrefslogtreecommitdiffstats
path: root/target/linux/generic-2.6/patches-2.6.30/053-squashfs_lzma.patch
diff options
context:
space:
mode:
Diffstat (limited to 'target/linux/generic-2.6/patches-2.6.30/053-squashfs_lzma.patch')
-rw-r--r--target/linux/generic-2.6/patches-2.6.30/053-squashfs_lzma.patch46
1 files changed, 38 insertions, 8 deletions
diff --git a/target/linux/generic-2.6/patches-2.6.30/053-squashfs_lzma.patch b/target/linux/generic-2.6/patches-2.6.30/053-squashfs_lzma.patch
index 35208fd7a0..19deb7335d 100644
--- a/target/linux/generic-2.6/patches-2.6.30/053-squashfs_lzma.patch
+++ b/target/linux/generic-2.6/patches-2.6.30/053-squashfs_lzma.patch
@@ -47,7 +47,7 @@
__le32 s_magic;
--- a/fs/squashfs/super.c
+++ b/fs/squashfs/super.c
-@@ -47,13 +47,65 @@
+@@ -47,13 +47,76 @@
#include "squashfs.h"
@@ -81,7 +81,7 @@
+ crypto_free_pcomp(msblk->tfm);
+ }
+#endif
-
++
+ return err;
+}
+
@@ -90,6 +90,17 @@
+ int err = -EOPNOTSUPP;
+
+#ifdef CONFIG_SQUASHFS_SUPPORT_LZMA
++ struct {
++ struct nlattr nla;
++ int val;
++ } params = {
++ .nla = {
++ .nla_len = nla_attr_size(sizeof(int)),
++ .nla_type = UNLZMA_DECOMP_OUT_BUFFERS,
++ },
++ .val = (msblk->block_size / PAGE_CACHE_SIZE) + 1
++ };
+
+ msblk->tfm = crypto_alloc_pcomp("lzma", 0,
+ CRYPTO_ALG_ASYNC);
+ if (IS_ERR(msblk->tfm)) {
@@ -97,7 +108,7 @@
+ return PTR_ERR(msblk->tfm);
+ }
+
-+ err = crypto_decompress_setup(msblk->tfm, NULL, 0);
++ err = crypto_decompress_setup(msblk->tfm, &params, sizeof(params));
+ if (err) {
+ ERROR("Failed to set up decompression parameters\n");
+ crypto_free_pcomp(msblk->tfm);
@@ -115,7 +126,7 @@
{
if (major < SQUASHFS_MAJOR) {
ERROR("Major/Minor mismatch, older Squashfs %d.%d "
-@@ -66,9 +118,6 @@ static int supported_squashfs_filesystem
+@@ -66,9 +129,6 @@ static int supported_squashfs_filesystem
return -EINVAL;
}
@@ -125,7 +136,7 @@
return 0;
}
-@@ -83,16 +132,6 @@ static int squashfs_fill_super(struct su
+@@ -83,16 +143,6 @@ static int squashfs_fill_super(struct su
unsigned short flags;
unsigned int fragments;
u64 lookup_table_start;
@@ -142,7 +153,7 @@
int err;
TRACE("Entered squashfs_fill_superblock\n");
-@@ -104,21 +143,6 @@ static int squashfs_fill_super(struct su
+@@ -104,21 +154,6 @@ static int squashfs_fill_super(struct su
}
msblk = sb->s_fs_info;
@@ -164,8 +175,15 @@
sblk = kzalloc(sizeof(*sblk), GFP_KERNEL);
if (sblk == NULL) {
ERROR("Failed to allocate squashfs_super_block\n");
-@@ -158,8 +182,21 @@ static int squashfs_fill_super(struct su
+@@ -156,10 +191,28 @@ static int squashfs_fill_super(struct su
+ goto failed_mount;
+ }
++ /* Check block size for sanity */
++ msblk->block_size = le32_to_cpu(sblk->block_size);
++ if (msblk->block_size > SQUASHFS_FILE_MAX_SIZE)
++ goto failed_mount;
++
/* Check the MAJOR & MINOR versions and compression type */
err = supported_squashfs_filesystem(le16_to_cpu(sblk->s_major),
- le16_to_cpu(sblk->s_minor),
@@ -188,7 +206,19 @@
if (err < 0)
goto failed_mount;
-@@ -315,21 +352,16 @@ allocate_root:
+@@ -179,11 +232,6 @@ static int squashfs_fill_super(struct su
+ i_size_read(sb->s_bdev->bd_inode))
+ goto failed_mount;
+
+- /* Check block size for sanity */
+- msblk->block_size = le32_to_cpu(sblk->block_size);
+- if (msblk->block_size > SQUASHFS_FILE_MAX_SIZE)
+- goto failed_mount;
+-
+ /*
+ * Check the system page size is not larger than the filesystem
+ * block size (by default 128K). This is currently not supported.
+@@ -315,21 +363,16 @@ allocate_root:
return 0;
failed_mount: