Author: markj
Date: Mon Oct 7 15:26:40 2019
New Revision: 353279
URL: https://svnweb.freebsd.org/changeset/base/353279
Log:
MFS r353276:
Disallow fcntl(F_READAHEAD) when the vnode is not a regular file.
Approved by: re (gjb)
Modified:
releng/12.1/sys/kern/kern_descrip.c
Directory Properties:
releng/12.1/ (props changed)
Modified: releng/12.1/sys/kern/kern_descrip.c
==============================================================================
--- releng/12.1/sys/kern/kern_descrip.c Mon Oct 7 15:25:00 2019
(r353278)
+++ releng/12.1/sys/kern/kern_descrip.c Mon Oct 7 15:26:40 2019
(r353279)
@@ -770,6 +770,12 @@ kern_fcntl(struct thread *td, int fd, int cmd, intptr_
break;
}
vp = fp->f_vnode;
+ if (vp->v_type != VREG) {
+ fdrop(fp, td);
+ error = ENOTTY;
+ break;
+ }
+
/*
* Exclusive lock synchronizes against f_seqcount reads and
* writes in sequential_heuristic().
_______________________________________________
[email protected] mailing list
https://lists.freebsd.org/mailman/listinfo/svn-src-all
To unsubscribe, send any mail to "[email protected]"
