4.15-stable review patch. If anyone has any objections, please let me know.
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From: Mike Rapoport rppt@linux.vnet.ibm.com
commit 36447456e1cca853188505f2a964dbbeacfc7a7a upstream.
The switch to uuid_t invereted the logic of verfication that &entry->fsuuid is zero during parsing of "fsuuid=" rule. Instead of making sure the &entry->fsuuid field is not attempted to be overwritten, we bail out for perfectly correct rule.
Fixes: 787d8c530af7 ("ima/policy: switch to use uuid_t") Signed-off-by: Mike Rapoport rppt@linux.vnet.ibm.com Signed-off-by: Mimi Zohar zohar@linux.vnet.ibm.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- security/integrity/ima/ima_policy.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/security/integrity/ima/ima_policy.c +++ b/security/integrity/ima/ima_policy.c @@ -743,7 +743,7 @@ static int ima_parse_rule(char *rule, st case Opt_fsuuid: ima_log_string(ab, "fsuuid", args[0].from);
- if (uuid_is_null(&entry->fsuuid)) { + if (!uuid_is_null(&entry->fsuuid)) { result = -EINVAL; break; }