3.8-stable patches

added patches:
	udf-fix-bitmap-overflow-on-large-filesystems-with-small-block-size.patch

diff --git a/queue-3.8/series b/queue-3.8/series
index 6b10af9f99a340afdae952f3ded400faa00459df..85ba1bf21d7056ef233b43e3fdede337594779be 100644 (file)
--- a/queue-3.8/series
+++ b/queue-3.8/series
@@ -90,3 +90,4 @@ efivars-allow-disabling-use-as-a-pstore-backend.patch
 efivars-add-module-parameter-to-disable-use-as-a-pstore-backend.patch
 efivars-fix-check-for-config_efi_vars_pstore_default_disable.patch
 acpi-rework-acpi_get_child-to-be-more-efficient.patch
+udf-fix-bitmap-overflow-on-large-filesystems-with-small-block-size.patch

diff --git a/queue-3.8/udf-fix-bitmap-overflow-on-large-filesystems-with-small-block-size.patch b/queue-3.8/udf-fix-bitmap-overflow-on-large-filesystems-with-small-block-size.patch
new file mode 100644 (file)
index 0000000..d13bd73
--- /dev/null
+++ b/queue-3.8/udf-fix-bitmap-overflow-on-large-filesystems-with-small-block-size.patch
@@ -0,0 +1,38 @@
+From 89b1f39eb4189de745fae554b0d614d87c8d5c63 Mon Sep 17 00:00:00 2001
+From: Jan Kara <jack@suse.cz>
+Date: Tue, 5 Feb 2013 13:59:56 +0100
+Subject: udf: Fix bitmap overflow on large filesystems with small block size
+
+From: Jan Kara <jack@suse.cz>
+
+commit 89b1f39eb4189de745fae554b0d614d87c8d5c63 upstream.
+
+For large UDF filesystems with 512-byte blocks the number of necessary
+bitmap blocks is larger than 2^16 so s_nr_groups in udf_bitmap overflows
+(the number will overflow for filesystems larger than 128 GB with
+512-byte blocks). That results in ENOSPC errors despite the filesystem
+has plenty of free space.
+
+Fix the problem by changing s_nr_groups' type to 'int'. That is enough
+even for filesystems 2^32 blocks (UDF maximum) and 512-byte blocksize.
+
+Reported-and-tested-by: v10lator@myway.de
+Signed-off-by: Jan Kara <jack@suse.cz>
+Cc: Jim Trigg <jtrigg@spamcop.net>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ fs/udf/udf_sb.h |    2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/fs/udf/udf_sb.h
++++ b/fs/udf/udf_sb.h
+@@ -82,7 +82,7 @@ struct udf_virtual_data {
+ struct udf_bitmap {
+       __u32                   s_extLength;
+       __u32                   s_extPosition;
+-      __u16                   s_nr_groups;
++      int                     s_nr_groups;
+       struct buffer_head      **s_block_bitmap;
+ };
+