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From fa5b4100c32d3125eeb0d6b0024892af86ecddb0 Mon Sep 17 00:00:00 2001
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Message-Id: <fa5b4100c32d3125eeb0d6b0024892af86ecddb0@dist-git>
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From: =?UTF-8?q?J=C3=A1n=20Tomko?= <jtomko@redhat.com>
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Date: Tue, 29 Sep 2020 14:43:03 +0200
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Subject: [PATCH] rpc: gendispatch: handle empty flags
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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CVE-2020-25637
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Prepare for omission of the <flagname> in remote_protocol.x
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@acl annotations:
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@acl: <object>:<permission>:<flagname>
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so that we can add more fields after, e.g.:
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@acl: <object>:<permission>::<field>
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Signed-off-by: Ján Tomko <jtomko@redhat.com>
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(cherry picked from commit 955029bd0ad7ef96000f529ac38204a8f4a96401)
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Signed-off-by: Ján Tomko <jtomko@redhat.com>
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Message-Id: <5fda9fc6cfe45eace10b8c2565a8b0c46b51f46c.1601383236.git.jtomko@redhat.com>
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Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
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---
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src/rpc/gendispatch.pl | 4 ++--
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1 file changed, 2 insertions(+), 2 deletions(-)
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diff --git a/src/rpc/gendispatch.pl b/src/rpc/gendispatch.pl
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index 8656c8f205..4cb9701e59 100755
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--- a/src/rpc/gendispatch.pl
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+++ b/src/rpc/gendispatch.pl
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@@ -2112,7 +2112,7 @@ elsif ($mode eq "client") {
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if ($acl[$i]->{object} ne $acl[0]->{object}) {
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die "acl for '$call->{ProcName}' cannot check different objects";
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}
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- if (defined $acl[$i]->{flags}) {
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+ if (defined $acl[$i]->{flags} && length $acl[$i]->{flags}) {
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$checkflags = 1;
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}
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}
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@@ -2200,7 +2200,7 @@ elsif ($mode eq "client") {
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my $method = "virAccessManagerCheck" . $object;
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my $space = ' ' x length($method);
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print " if (";
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- if (defined $acl->{flags}) {
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+ if (defined $acl->{flags} && length $acl->{flags}) {
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my $flags = $acl->{flags};
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if ($flags =~ /^\!/) {
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$flags = substr $flags, 1;
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--
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2.28.0
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