33 lines
1.0 KiB
Diff
33 lines
1.0 KiB
Diff
From 4be25979a6b3e2a79d7c9667b07db8b09fb046e9 Mon Sep 17 00:00:00 2001
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From: Werner Koch <wk@gnupg.org>
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Date: Thu, 13 Mar 2025 11:35:34 +0100
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Subject: [PATCH] gpg: Fix double free of internal data.
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* g10/sig-check.c (check_signature_over_key_or_uid): Do not free in
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no-sig-cache mode if allocated by caller.
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--
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GnuPG-bug-id: 7547
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Fixes-commit: 44cdb9d73f1a0b7d2c8483a119b9c4d6caabc1ec
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---
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g10/sig-check.c | 3 ++-
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1 file changed, 2 insertions(+), 1 deletion(-)
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diff --git a/g10/sig-check.c b/g10/sig-check.c
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index 456c29320..ed83c23f9 100644
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--- a/g10/sig-check.c
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+++ b/g10/sig-check.c
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@@ -1007,7 +1007,8 @@ check_signature_over_key_or_uid (ctrl_t ctrl, PKT_public_key *signer,
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rc = get_pubkey_for_sig (ctrl, signer, sig, NULL, NULL);
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if (rc)
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{
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- xfree (signer);
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+ if (signer_alloced != 1)
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+ xfree (signer);
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signer = NULL;
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signer_alloced = 0;
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goto leave;
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--
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2.33.0
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