Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=951744fea0aea9adbd7c8cacb3605f2d69a66f96
Commit: 951744fea0aea9adbd7c8cacb3605f2d69a66f96
Parent: 31170b6ad4ebe6c43c1cc3b8112274cf59474de0
Author: Dmitriy Monakhov <[EMAIL PROTECTED]>
AuthorDate: Tue May 8 00:35:22 2007 -0700
Committer: Linus Torvalds <[EMAIL PROTECTED]>
CommitDate: Tue May 8 11:15:22 2007 -0700
udf: possible null pointer dereference while load_partition
sb_read may return NULL, let's explicitly check it.
Signed-off-by: Dmitriy Monakhov <[EMAIL PROTECTED]>
Cc: Jan Kara <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>
---
fs/udf/super.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/fs/udf/super.c b/fs/udf/super.c
index a92daab..9b8644a 100644
--- a/fs/udf/super.c
+++ b/fs/udf/super.c
@@ -1403,6 +1403,8 @@ udf_load_partition(struct super_block *sb, kernel_lb_addr
*fileset)
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));
-
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