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List:       selinux
Subject:    [PATCH 1/1] libselinux - Mapped compute functions now obey deny_unknown flag
From:       Richard Haines <richard_c_haines () btinternet ! com>
Date:       2011-11-27 16:06:57
Message-ID: 1322410017.47664.YahooMailClassic () web87001 ! mail ! ird ! yahoo ! com
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If selinux_set_mapping(3) is used to map classes, and an invalid class is used to compute a decision (tclass = 0), the result did not obey the status of the deny_unknown flag.

Signed-off-by: Richard Haines <richard_c_haines@btinternet.com>
---
 libselinux/src/compute_av.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/libselinux/src/compute_av.c b/libselinux/src/compute_av.c
index 86ff274..ec5a096 100644
--- a/libselinux/src/compute_av.c
+++ b/libselinux/src/compute_av.c
@@ -60,6 +60,8 @@ int security_compute_av_flags_raw(const security_context_t scon,
 	} else if (ret < 6)
 		avd->flags = 0;
 
+	/* If tclass invalid, kernel sets avd according to deny_unknown flag */
+	if (tclass != 0)	
 	map_decision(tclass, avd);
 
 	ret = 0;
-- 
1.7.7.1


Richard


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