Author: kib
Date: Sat Jun 20 04:39:52 2020
New Revision: 362426
URL: https://svnweb.freebsd.org/changeset/base/362426
Log:
MFC r311286:
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.
Modified:
stable/11/sys/kern/vfs_syscalls.c
Directory Properties:
stable/11/ (props changed)
Modified: stable/11/sys/kern/vfs_syscalls.c
==============================================================================
--- stable/11/sys/kern/vfs_syscalls.c Sat Jun 20 04:27:38 2020
(r362425)
+++ stable/11/sys/kern/vfs_syscalls.c Sat Jun 20 04:39:52 2020
(r362426)
@@ -409,6 +409,8 @@ kern_getfsstat(struct thread *td, struct statfs **buf,
case MNT_NOWAIT:
break;
default:
+ if (bufseg == UIO_SYSSPACE)
+ *buf = NULL;
return (EINVAL);
}
restart:
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