[PATCH] libselinux: avoid newline in avc message

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Do not add a final newline to the avc log message as it will be treated
as a part of the tclass field in final audit record:

    {
        "AUDIT_FIELD_EXE" : "/usr/bin/dbus-broker",
        "_UID" : "104",
        "_AUDIT_SESSION" : "4294967295",
        "_TRANSPORT" : "audit",
        "__REALTIME_TIMESTAMP" : "1659975331468531",
        "_AUDIT_TYPE" : "1107",
        "AUDIT_FIELD_SCONTEXT" : "system_u:system_r:systemd_t:s0",
        "_AUDIT_LOGINUID" : "4294967295",
        "_SELINUX_CONTEXT" : "system_u:system_r:system_dbusd_t:s0-s0:c0.c1023",
        "AUDIT_FIELD_SAUID" : "104",
        "MESSAGE" : "USER_AVC pid=1538 uid=104 auid=4294967295 ses=4294967295 subj=system_u:system_r:system_dbusd_t:s0-s0:c0.c1023 msg='avc:  granted  { send_msg } for  scontext=system_u:system_r:systemd_t:s0 tcontext=system_u:system_r:systemd_logind_t:s0 tclass=dbus\n exe=\"/usr/bin/dbus-broker\" sauid=104 hostname=? addr=? terminal=?'",
        "AUDIT_FIELD_TCONTEXT" : "system_u:system_r:systemd_logind_t:s0",
        "_SOURCE_REALTIME_TIMESTAMP" : "1659975331462000",
        "__MONOTONIC_TIMESTAMP" : "207995768",
        "AUDIT_FIELD_TCLASS" : "dbus\n",
        "AUDIT_FIELD_TERMINAL" : "?",
        "_PID" : "1538",
        "SYSLOG_FACILITY" : "4",
        "_BOOT_ID" : "3921464b65f64fb4a7c037dee97cd6ad",
        "SYSLOG_IDENTIFIER" : "audit",
        "_MACHINE_ID" : "5d78c28f10d54c0fb7b6fd1acc6af8ff",
        "_AUDIT_TYPE_NAME" : "USER_AVC",
        "__CURSOR" : "s=84589ce96ff8400189fc515ff892674a;i=c38e;b=3921464b65f64fb4a7c037dee97cd6ad;m=c65c378;t=5e5bd1ff7d4f3;x=c22e610fc9b00b10",
        "AUDIT_FIELD_ADDR" : "?",
        "AUDIT_FIELD_HOSTNAME" : "?",
        "_AUDIT_ID" : "1075",
        "_HOSTNAME" : "debianBullseye"
    }

Signed-off-by: Christian Göttsche <cgzones@xxxxxxxxxxxxxx>
---
 libselinux/src/avc.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/libselinux/src/avc.c b/libselinux/src/avc.c
index 7493e4b2..8d5983a2 100644
--- a/libselinux/src/avc.c
+++ b/libselinux/src/avc.c
@@ -725,7 +725,6 @@ void avc_audit(security_id_t ssid, security_id_t tsid,
 	if (denied)
 		log_append(avc_audit_buf, " permissive=%u", result ? 0 : 1);
 
-	log_append(avc_audit_buf, "\n");
 	avc_log(SELINUX_AVC, "%s", avc_audit_buf);
 
 	avc_release_lock(avc_log_lock);
-- 
2.36.1




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