Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx> writes: > When we try to soft-offline a thp tail page, put_page() is called on the > tail page unthinkingly and VM_BUG_ON is triggered in put_compound_page(). > This patch splits thp before going into the main body of soft-offlining. Looks good. > > The interface of soft-offlining is open for userspace, so this bug can > lead to DoS attack and should be fixed immedately. The interface is root only and root can do everything anyways, so it's not really a security issue. -Andi -- ak@xxxxxxxxxxxxxxx -- Speaking for myself only -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>