24 lines
792 B
Diff
24 lines
792 B
Diff
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From 578aed8391ef117ca64a9e0cba8e5c264368a0ec Mon Sep 17 00:00:00 2001
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From: Frank Morgner <frankmorgner@gmail.com>
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Date: Thu, 8 Dec 2022 00:27:18 +0100
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Subject: [PATCH] sc_pkcs15init_rmdir: prevent out of bounds write
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fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=53927
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---
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src/pkcs15init/pkcs15-lib.c | 2 ++
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1 file changed, 2 insertions(+)
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diff --git a/src/pkcs15init/pkcs15-lib.c b/src/pkcs15init/pkcs15-lib.c
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index 91cee37310..3df03c6e1f 100644
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--- a/src/pkcs15init/pkcs15-lib.c
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+++ b/src/pkcs15init/pkcs15-lib.c
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@@ -685,6 +685,8 @@ sc_pkcs15init_rmdir(struct sc_pkcs15_card *p15card, struct sc_profile *profile,
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path = df->path;
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path.len += 2;
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+ if (path.len > SC_MAX_PATH_SIZE)
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+ return SC_ERROR_INTERNAL;
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nfids = r / 2;
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while (r >= 0 && nfids--) {
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