Hello Ulka Vaze, You didn't introduce this warning but you were fixing nearby code so you might know the answer. drivers/staging/lustre/lustre/lmv/lmv_obd.c:1069 lmv_iocontrol() warn: check 'reqlen' for integer overflows 'obd_iocontrol()' drivers/staging/lustre/lustre/lmv/lmv_obd.c 1056 1057 /* build a request with fids for this MDS */ 1058 reqlen = offsetof(typeof(*hur), 1059 hur_user_item[nr]) 1060 + hur->hur_request.hr_data_len; It looks like this addition can have an integer overflow bug. 1061 req = libcfs_kvzalloc(reqlen, GFP_NOFS); Leading to a req that is smaller than necessary. 1062 if (!req) 1063 return -ENOMEM; 1064 1065 rc1 = lmv_hsm_req_build(lmv, hur, tgt, req); Which could be a problem in here. 1066 if (rc1 < 0) 1067 goto hsm_req_err; 1068 1069 rc1 = obd_iocontrol(cmd, tgt->ltd_exp, reqlen, 1070 req, uarg); 1071 hsm_req_err: 1072 if (rc1 != 0 && rc == 0) 1073 rc = rc1; 1074 kvfree(req); regards, dan carpenter _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
