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28 lines
956 B
28 lines
956 B
2 weeks ago
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From FEDORA_PATCHES Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Lu=C3=ADs=20Ferreira?= <contact@lsferreira.net>
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Date: Thu, 23 Sep 2021 11:33:47 -0400
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Subject: libiberty-rhbz-2132600-prevent-buffer-overflow.patch
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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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;; Backport libiberty: prevent buffer overflow when decoding user input
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;; (Luís Ferreira, RHBZ2132600)
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libiberty/
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* d-demangle.c (dlang_symbol_backref): Ensure strlen of
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string is less than length computed by dlang_number.
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diff --git a/libiberty/d-demangle.c b/libiberty/d-demangle.c
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--- a/libiberty/d-demangle.c
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+++ b/libiberty/d-demangle.c
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@@ -380,7 +380,7 @@ dlang_symbol_backref (string *decl, const char *mangled,
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/* Must point to a simple identifier. */
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backref = dlang_number (backref, &len);
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- if (backref == NULL)
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+ if (backref == NULL || strlen (backref) < len)
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return NULL;
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backref = dlang_lname (decl, backref, len);
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