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Commit d69e83d9 authored by Dave Kleikamp's avatar Dave Kleikamp
Browse files

jfs: ensure symlinks are NUL-terminated 



This is an alternate fix for a bug reported and fixed by Duane Griffin.

Signed-off-by: default avatarDave Kleikamp <shaggy@linux.vnet.ibm.com>
Reported-by: default avatarDuane Griffin <duaneg@dghda.com>
parent a3dd1544

fs/jfs/inode.c

+7 −1
Original line number Diff line number Diff line
@@ -59,8 +59,14 @@ struct inode *jfs_iget(struct super_block *sb, unsigned long ino) 
		if (inode->i_size >= IDATASIZE) {

			inode->i_op = &page_symlink_inode_operations;

			inode->i_mapping->a_ops = &jfs_aops;

		} else

		} else {

			inode->i_op = &jfs_symlink_inode_operations;

			/*

			 * The inline data should be null-terminated, but

			 * don't let on-disk corruption crash the kernel

			 */

			JFS_IP(inode)->i_inline[inode->i_size] = '\0';

		}

	} else {

		inode->i_op = &jfs_file_inode_operations;

		init_special_inode(inode, inode->i_mode, inode->i_rdev);