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libgcrypt: Fix a memory leak

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Fixes: CID 468917

Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
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Vladimir Serbinenko 2025-07-07 14:52:20 +00:00 committed by Daniel Kiper
parent d48c277c49
commit b930bfa377
1 changed files with 21 additions and 0 deletions
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21
grub-core/lib/libgcrypt-patches/08_sexp_leak.patch Normal file
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@ -0,0 +1,21 @@
sexp: Fix a memory leak
Fixes: CID 468917
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
diff -ur ../libgcrypt-1.11.0/src/sexp.c grub-core/lib/libgcrypt/src/sexp.c
--- a/grub-core/lib/libgcrypt-grub/src/sexp.c 2024-03-28 10:07:27.000000000 +0000
+++ b/grub-core/lib/libgcrypt-grub/src/sexp.c 2025-07-02 17:10:32.714864459 +0000
@@ -2725,8 +2725,10 @@
length = 0;
for (s=string; *s; s +=2 )
{
- if (!hexdigitp (s) || !hexdigitp (s+1))
+ if (!hexdigitp (s) || !hexdigitp (s+1)) {
+ free (buffer);
return NULL; /* Invalid hex digits. */
+ }
((unsigned char*)buffer)[length++] = xtoi_2 (s);
}
*r_length = length;