37 lines
1.2 KiB
Diff
37 lines
1.2 KiB
Diff
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From f4330d57705205b52ec117803bf8543a2e59bb00 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Christian=20G=C3=B6ttsche?= <cgzones@googlemail.com>
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Date: Mon, 11 Mar 2024 15:57:04 +0100
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Subject: [PATCH] checkpolicy: return YYerror on invalid character
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Inform bison about an invalid character by returning YYerror, so the
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parser can cleanup internal state and return the failure via yyparse().
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Currently the error is only observable via the global variable
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policydb_errors, which needs to be checked separately.
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Reported-by: oss-fuzz (issue #67270)
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Signed-off-by: Christian Göttsche <cgzones@googlemail.com>
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Acked-by: James Carter <jwcart2@gmail.com>
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---
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policy_scan.l | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/policy_scan.l b/policy_scan.l
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index 19c05a58..1926129c 100644
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--- a/policy_scan.l
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+++ b/policy_scan.l
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@@ -310,7 +310,7 @@ GLBLUB { return(GLBLUB); }
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"]" |
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"~" |
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"*" { return(yytext[0]); }
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-. { yyerror("unrecognized character");}
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+. { yyerror("unrecognized character"); return YYerror; }
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%%
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int yyerror(const char *msg)
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{
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--
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2.33.0
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