Author: asomers Date: Wed Dec 6 17:01:25 2017 New Revision: 326624 URL: https://svnweb.freebsd.org/changeset/base/326624
Log: cam: fix sign-extension error in adagetparams adagetparams contains a sign-extension error that will cause the sector count to be incorrectly calculated for ATA disks of >=1TiB that still use CHS addressing. Disks using LBA48 addressing are unaffected. Reported by: Coverity CID: 1007296 Reviewed by: ken MFC after: 3 weeks Sponsored by: Spectra Logic Corp Differential Revision: https://reviews.freebsd.org/D13198 Modified: head/sys/cam/ata/ata_da.c Modified: head/sys/cam/ata/ata_da.c ============================================================================== --- head/sys/cam/ata/ata_da.c Wed Dec 6 14:53:53 2017 (r326623) +++ head/sys/cam/ata/ata_da.c Wed Dec 6 17:01:25 2017 (r326624) @@ -3377,7 +3377,8 @@ adagetparams(struct cam_periph *periph, struct ccb_get dp->heads = cgd->ident_data.heads; dp->secs_per_track = cgd->ident_data.sectors; dp->cylinders = cgd->ident_data.cylinders; - dp->sectors = cgd->ident_data.cylinders * dp->heads * dp->secs_per_track; + dp->sectors = cgd->ident_data.cylinders * + (u_int32_t)(dp->heads * dp->secs_per_track); } lbasize = (u_int32_t)cgd->ident_data.lba_size_1 | ((u_int32_t)cgd->ident_data.lba_size_2 << 16); _______________________________________________ svn-src-head@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
