Author: kib Date: Wed Jan 4 16:09:45 2017 New Revision: 311286 URL: https://svnweb.freebsd.org/changeset/base/311286
Log: The callers of kern_getfsstat(UIO_SYSSPACE) expect that *buf always returns memory which must be freed, regardless of the error. Assign NULL to *buf in case we are not going to allocate any memory due to invalid mode. Reported and tested by: pho Reviewed by: jhb Sponsored by: The FreeBSD Foundation MFC after: 3 weeks (together with r310638) Differential revision: https://reviews.freebsd.org/D9042 Modified: head/sys/kern/vfs_syscalls.c Modified: head/sys/kern/vfs_syscalls.c ============================================================================== --- head/sys/kern/vfs_syscalls.c Wed Jan 4 16:09:08 2017 (r311285) +++ head/sys/kern/vfs_syscalls.c Wed Jan 4 16:09:45 2017 (r311286) @@ -429,6 +429,8 @@ kern_getfsstat(struct thread *td, struct case MNT_NOWAIT: break; default: + if (bufseg == UIO_SYSSPACE) + *buf = NULL; return (EINVAL); } restart: _______________________________________________ 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"
