Author: jhb Date: Wed Sep 19 22:53:52 2018 New Revision: 338813 URL: https://svnweb.freebsd.org/changeset/base/338813
Log: Clear all of the VFP state in fill_fpregs(). Zero the entire FP register set structure returned for ptrace() if a thread hasn't used FP registers rather than leaking garbage in the fp_sr and fp_cr fields. Reviewed by: emaste, andrew Approved by: re (rgrimes) MFC after: 2 weeks Sponsored by: DARPA, AFRL Differential Revision: https://reviews.freebsd.org/D17140 Modified: head/sys/arm64/arm64/machdep.c Modified: head/sys/arm64/arm64/machdep.c ============================================================================== --- head/sys/arm64/arm64/machdep.c Wed Sep 19 22:39:40 2018 (r338812) +++ head/sys/arm64/arm64/machdep.c Wed Sep 19 22:53:52 2018 (r338813) @@ -236,7 +236,7 @@ fill_fpregs(struct thread *td, struct fpreg *regs) regs->fp_sr = pcb->pcb_fpustate.vfp_fpsr; } else #endif - memset(regs->fp_q, 0, sizeof(regs->fp_q)); + memset(regs, 0, sizeof(*regs)); return (0); } _______________________________________________ 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"
