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selinux: Augment BUG_ON assertion for secclass_map.

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Ensure that we catch any cases where tclass == 0.

Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: Paul Moore <pmoore@redhat.com>
This commit is contained in:
Stephen Smalley 2015-07-10 17:19:57 -04:00 • committed by Paul Moore
parent 5dee25d08e
commit bd1741f4cf
1 changed files with 2 additions and 1 deletions
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3
security/selinux/avc.c
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@ -116,6 +116,7 @@ static void avc_dump_av(struct audit_buffer *ab, u16 tclass, u32 av)
return; return;
} }
BUG_ON(!tclass || tclass >= ARRAY_SIZE(secclass_map));
perms = secclass_map[tclass-1].perms; perms = secclass_map[tclass-1].perms;
audit_log_format(ab, " {"); audit_log_format(ab, " {");
@ -164,7 +165,7 @@ static void avc_dump_query(struct audit_buffer *ab, u32 ssid, u32 tsid, u16 tcla
kfree(scontext); kfree(scontext);
} }
BUG_ON(tclass >= ARRAY_SIZE(secclass_map)); BUG_ON(!tclass || tclass >= ARRAY_SIZE(secclass_map));
audit_log_format(ab, " tclass=%s", secclass_map[tclass-1].name); audit_log_format(ab, " tclass=%s", secclass_map[tclass-1].name);
} }