Author: ngie Date: Mon Mar 27 18:29:30 2017 New Revision: 316047 URL: https://svnweb.freebsd.org/changeset/base/316047
Log: MFC r315639: libcam: NULL out freed `ccb.cdm.matches` and `ccb.cdm.patterns` pointers This is being done to avoid potential double frees with the values. Modified: stable/10/lib/libcam/camlib.c Directory Properties: stable/10/ (props changed) Modified: stable/10/lib/libcam/camlib.c ============================================================================== --- stable/10/lib/libcam/camlib.c Mon Mar 27 18:28:17 2017 (r316046) +++ stable/10/lib/libcam/camlib.c Mon Mar 27 18:29:30 2017 (r316047) @@ -308,6 +308,7 @@ cam_open_btl(path_id_t path_id, target_i snprintf(cam_errbuf, CAM_ERRBUF_SIZE, "%s: couldn't malloc pattern buffer", func_name); free(ccb.cdm.matches); + ccb.cdm.matches = NULL; close(fd); return(NULL); } @@ -371,7 +372,9 @@ cam_open_btl(path_id_t path_id, target_i periph_result = &ccb.cdm.matches[0].result.periph_result; pass_unit = periph_result->unit_number; free(ccb.cdm.matches); + ccb.cdm.matches = NULL; free(ccb.cdm.patterns); + ccb.cdm.patterns = NULL; close(fd); sprintf(dev_path, "/dev/pass%d", pass_unit); return(cam_real_open_device(dev_path, flags, device, NULL, @@ -388,7 +391,9 @@ cam_open_btl(path_id_t path_id, target_i btl_bailout: free(ccb.cdm.matches); + ccb.cdm.matches = NULL; free(ccb.cdm.patterns); + ccb.cdm.patterns = NULL; close(fd); return(NULL); } _______________________________________________ svn-src-stable-10@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-stable-10 To unsubscribe, send any mail to "svn-src-stable-10-unsubscr...@freebsd.org"