Messages in this thread Patch in this message | | | Date | Thu, 24 Jun 2004 22:24:17 +0100 | From | viro@parcelfa ... | Subject | Re: Oops with 2.6.7-bk |
| |
On Thu, Jun 24, 2004 at 11:16:49PM +0200, Marcel Holtmann wrote: > I got this oops on boot with the latest Bitkeeper snapshot of 2.6.7
Memory corruption in generic_readlink(), now that we use nd->depth instead of current->link_count. Fix follows:
--- fs/namei.c Thu Jun 24 16:06:45 2004 +++ fs/namei.c-fix Thu Jun 24 16:07:24 2004 @@ -2197,7 +2197,9 @@ int generic_readlink(struct dentry *dentry, char __user *buffer, int buflen) { struct nameidata nd; - int res = dentry->d_inode->i_op->follow_link(dentry, &nd); + int res; + nd.depth = 0; + res = dentry->d_inode->i_op->follow_link(dentry, &nd); if (!res) { res = vfs_readlink(dentry, buffer, buflen, nd_get_link(&nd)); if (dentry->d_inode->i_op->put_link) - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |