buffer_head.b_data needs to be 8-byte aligned to prevent an unaligned
access via a 64-bit pointer in e.g. scan_revoke_records().
Caught using clang -fsanitize=undefined.
Signed-off-by: Sami Liedes <sami.liedes@xxxxxx>
---
e2fsck/jfs_user.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/e2fsck/jfs_user.h b/e2fsck/jfs_user.h
index 3cccd3f..fdaf1b2 100644
--- a/e2fsck/jfs_user.h
+++ b/e2fsck/jfs_user.h
@@ -22,7 +22,7 @@ struct buffer_head {
int b_dirty;
int b_uptodate;
int b_err;
- char b_data[1024];
+ char b_data[1024] __attribute__ ((aligned (8)));
};
struct inode {
--
1.7.10.4
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