audit: Fix wrong task in comparison of session ID
The audit_filter_rules() function in auditsc.c compared the session ID
with the credentials of the current task, while it should use the
credentials of the task given to audit_filter_rules() as a parameter
(tsk).
GitHub issue:
https://github.com/linux-audit/audit-kernel/issues/82
Fixes: 8fae477056
("audit: add support for session ID user filter")
Signed-off-by: Ondrej Mosnacek <omosnace@redhat.com>
Reviewed-by: Richard Guy Briggs <rgb@redhat.com>
[PM: not user visible, dropped stable]
Signed-off-by: Paul Moore <paul@paul-moore.com>
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@ -517,7 +517,7 @@ static int audit_filter_rules(struct task_struct *tsk,
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result = audit_gid_comparator(cred->fsgid, f->op, f->gid);
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break;
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case AUDIT_SESSIONID:
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sessionid = audit_get_sessionid(current);
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sessionid = audit_get_sessionid(tsk);
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result = audit_comparator(sessionid, f->op, f->val);
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break;
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case AUDIT_PERS:
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