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Check read permission of symbolic link in vfs layer, when doing readlink(2). 

Suggested by der Mouse.  Ok'ed by Jason R. Thorpe.
This commit is contained in:
enami 1997-10-11 00:05:15 +00:00
parent ecacf28412
commit db7f1ad2ad
1 changed files with 2 additions and 2 deletions
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4
sys/kern/vfs_syscalls.c
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@ -1,4 +1,4 @@
/* $NetBSD: vfs_syscalls.c,v 1.101 1997/10/10 02:09:30 fvdl Exp $ */
/* $NetBSD: vfs_syscalls.c,v 1.102 1997/10/11 00:05:15 enami Exp $ */
/*
* Copyright (c) 1989, 1993
@ -1364,7 +1364,7 @@ sys_readlink(p, v, retval)
vp = nd.ni_vp;
if (vp->v_type != VLNK)
error = EINVAL;
else {
else if ((error = VOP_ACCESS(vp, VREAD, p->p_ucred, p)) == 0) {
aiov.iov_base = SCARG(uap, buf);
aiov.iov_len = SCARG(uap, count);
auio.uio_iov = &aiov;