On Tue, May 05, 2020 at 02:41:47PM -0500, Eric W. Biederman wrote: > > With install_exec_creds updated to follow immediately after > setup_new_exec, the failure of unshare_sighand is the only > code path where exec_update_mutex is held but not explicitly > unlocked. > > Update that code path to explicitly unlock exec_update_mutex. > > Remove the unlocking of exec_update_mutex from free_bprm. > > Signed-off-by: "Eric W. Biederman" <ebiederm@xxxxxxxxxxxx> Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx> -- Kees Cook
