On Fri, 20 Jul 2018, Kamalesh Babulal wrote: > livepatch module author can pass module name/old function name with more > than the defined character limit. With obj->name length greater than > MODULE_NAME_LEN, the livepatch module gets loaded but waits forever on > the module specified by obj->name to be loaded. It also populates a /sys > directory with an untruncated object name. > > In the case of funcs->old_name length greater then KSYM_NAME_LEN, it > would not match against any of the symbol table entries. Instead loop > through the symbol table comparing them against a nonexisting function, > which can be avoided. > > The same issues apply, to misspelled/incorrect names. At least gatekeep > the modules with over the limit string length, by checking for their > length during livepatch module registration. > > Signed-off-by: Kamalesh Babulal <kamal...@linux.vnet.ibm.com>
Applied, thanks. -- Jiri Kosina SUSE Labs
