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Code Issues Releases Activity

Check that vp->v_mount is non-null in fsync() before dereferencing it to

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obtain the mountpoint's MNT_ASYNC flag.

This is a Very Definite Last-Minute 2.2 Bugfix Candidate.

Reviewed by:	sef
This commit is contained in:
Mike Smith 1997-03-05 01:42:14 +00:00
parent 0b146b65d2
commit 3a558f83dd
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=23387
2 changed files with 6 additions and 4 deletions
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5
sys/kern/vfs_extattr.c
View File

@ -36,7 +36,7 @@
* SUCH DAMAGE. * SUCH DAMAGE.
* *
* @(#)vfs_syscalls.c 8.13 (Berkeley) 4/15/94 * @(#)vfs_syscalls.c 8.13 (Berkeley) 4/15/94
* $Id$ * $Id: vfs_syscalls.c,v 1.58 1997/02/22 09:39:35 peter Exp $
*/ */
/* /*
@ -2175,7 +2175,8 @@ fsync(p, uap, retval)
vm_object_page_clean(vp->v_object, 0, 0 ,0, FALSE); vm_object_page_clean(vp->v_object, 0, 0 ,0, FALSE);
} }
error = VOP_FSYNC(vp, fp->f_cred, error = VOP_FSYNC(vp, fp->f_cred,
(vp->v_mount->mnt_flag & MNT_ASYNC) ? MNT_NOWAIT : MNT_WAIT, p); (vp->v_mount && (vp->v_mount->mnt_flag & MNT_ASYNC)) ?
MNT_NOWAIT : MNT_WAIT, p);
VOP_UNLOCK(vp, 0, p); VOP_UNLOCK(vp, 0, p);
return (error); return (error);
} }

5
sys/kern/vfs_syscalls.c
View File

@ -36,7 +36,7 @@
* SUCH DAMAGE. * SUCH DAMAGE.
* *
* @(#)vfs_syscalls.c 8.13 (Berkeley) 4/15/94 * @(#)vfs_syscalls.c 8.13 (Berkeley) 4/15/94
* $Id$ * $Id: vfs_syscalls.c,v 1.58 1997/02/22 09:39:35 peter Exp $
*/ */
/* /*
@ -2175,7 +2175,8 @@ fsync(p, uap, retval)
vm_object_page_clean(vp->v_object, 0, 0 ,0, FALSE); vm_object_page_clean(vp->v_object, 0, 0 ,0, FALSE);
} }
error = VOP_FSYNC(vp, fp->f_cred, error = VOP_FSYNC(vp, fp->f_cred,
(vp->v_mount->mnt_flag & MNT_ASYNC) ? MNT_NOWAIT : MNT_WAIT, p); (vp->v_mount && (vp->v_mount->mnt_flag & MNT_ASYNC)) ?
MNT_NOWAIT : MNT_WAIT, p);
VOP_UNLOCK(vp, 0, p); VOP_UNLOCK(vp, 0, p);
return (error); return (error);
} }