svn commit: r356953 - stable/12/sys/compat/linuxkpi/common/src

[Mark Johnston]

Author: markj
Date: Wed Jan 22 00:30:27 2020
New Revision: 356953
URL: https://svnweb.freebsd.org/changeset/base/356953

Log:
  MFC r356760:
  Handle a NULL thread pointer in linux_close_file().
  
  PR:	242913

Modified:
  stable/12/sys/compat/linuxkpi/common/src/linux_compat.c
Directory Properties:
  stable/12/   (props changed)

Modified: stable/12/sys/compat/linuxkpi/common/src/linux_compat.c
==============================================================================
--- stable/12/sys/compat/linuxkpi/common/src/linux_compat.c	Tue Jan 21 22:28:16 2020	(r356952)
+++ stable/12/sys/compat/linuxkpi/common/src/linux_compat.c	Wed Jan 22 00:30:27 2020	(r356953)
@@ -1502,6 +1502,9 @@ linux_file_close(struct file *file, struct thread *td)
 	KASSERT(file_count(filp) == 0,
 	    ("File refcount(%d) is not zero", file_count(filp)));
 
+	if (td == NULL)
+		td = curthread;
+
 	error = 0;
 	filp->f_flags = file->f_flag;
 	linux_set_current(td);