The patch titled
udf: possible null pointer dereference while load_partition
has been added to the -mm tree. Its filename is
udf-possible-null-pointer-dereference-while-load_partition.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: udf: possible null pointer dereference while load_partition
From: Dmitriy Monakhov <dmonakhov@xxxxxxxxxx>
sb_read may return NULL, let's explicitly check it.
Signed-off-by: Dmitriy Monakhov <dmonakhov@xxxxxxxxxx>
Cc: Jan Kara <jack@xxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/udf/super.c | 2 ++
1 file changed, 2 insertions(+)
diff -puN fs/udf/super.c~udf-possible-null-pointer-dereference-while-load_partition fs/udf/super.c
--- a/fs/udf/super.c~udf-possible-null-pointer-dereference-while-load_partition
+++ a/fs/udf/super.c
@@ -1405,6 +1405,8 @@ udf_load_partition(struct super_block *s
pos = udf_block_map(UDF_SB_VAT(sb), 0);
bh = sb_bread(sb, pos);
+ if (!bh)
+ return 1;
UDF_SB_TYPEVIRT(sb,i).s_start_offset =
le16_to_cpu(((struct virtualAllocationTable20 *)bh->b_data + udf_ext0_offset(UDF_SB_VAT(sb)))->lengthHeader) +
udf_ext0_offset(UDF_SB_VAT(sb));
_
Patches currently in -mm which might be from dmonakhov@xxxxxxxxxx are
git-libata-all.patch
git-netdev-all.patch
mpt-fusion-handle-mpt_resume-failure-while-resuming.patch
freevxfs-possible-null-pointer-dereference-fix.patch
reiserfs-possible-null-pointer-dereference-during-resize.patch
irq-add-__must_check-to-request_irq.patch
ext3-dirindex-error-pointer-issues.patch
floppy-handle-device_create_file-failure-while-init.patch
udf-possible-null-pointer-dereference-while-load_partition.patch
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