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authorBob Beck <beck@cvs.openbsd.org>2019-03-24 18:43:07 +0000
committerBob Beck <beck@cvs.openbsd.org>2019-03-24 18:43:07 +0000
commitbf910681a5390e737f93e1163985c60c2aeba0f7 (patch)
treece60c318f91bcf575a8937038728ff9f039ab1c9 /lib/libc
parentaa174c78e67e9ab6cdb8dc7685adf73d25bde06b (diff)
Document the fact that readlink(2) can bypass restrictions as needed
by realpath(3). This will go away post 6.5. ok deraadt@
Diffstat (limited to 'lib/libc')
-rw-r--r--lib/libc/sys/unveil.212
1 files changed, 10 insertions, 2 deletions
diff --git a/lib/libc/sys/unveil.2 b/lib/libc/sys/unveil.2
index cea363a8bfc..172ca28b32e 100644
--- a/lib/libc/sys/unveil.2
+++ b/lib/libc/sys/unveil.2
@@ -1,4 +1,4 @@
-.\" $OpenBSD: unveil.2,v 1.15 2019/03/21 17:13:18 rob Exp $
+.\" $OpenBSD: unveil.2,v 1.16 2019/03/24 18:43:06 beck Exp $
.\"
.\" Copyright (c) 2018 Bob Beck <beck@openbsd.org>
.\"
@@ -14,7 +14,7 @@
.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
.\"
-.Dd $Mdocdate: March 21 2019 $
+.Dd $Mdocdate: March 24 2019 $
.Dt UNVEIL 2
.Os
.Sh NAME
@@ -155,6 +155,14 @@ was not accessible, or
.Nm
was called after locking.
.El
+.Sh BUGS
+.Xr readlink 2
+partially bypasses
+.Nm
+restrictions required by
+.Xr realpath 3 .
+Future changes intend to repair this problem.
+.Pp
.Sh HISTORY
The
.Fn unveil