[OE-core][scarthgap][PATCH 2/4] wget: Fix CVE-2026-58470

["Hetvi Thakar -X (hthakar - E INFOCHIPS PRIVATE LIMITED at Cisco)" <hthakar@cisco.com>]

From: Hetvi Thakar <hthakar@cisco.com>

This patch applies the upstream fix as referenced in [2],
using the commit shown in [1].

[1] https://gitlab.com/gnuwget/wget/-/commit/43d3ba9336bc94937e6fae2365c6ffd30c34ffcf
[2] https://nvd.nist.gov/vuln/detail/CVE-2026-58470

Signed-off-by: Hetvi Thakar <hthakar@cisco.com>
---
 .../wget/wget/CVE-2026-58470.patch            | 79 +++++++++++++++++++
 meta/recipes-extended/wget/wget_1.21.4.bb     |  1 +
 2 files changed, 80 insertions(+)
 create mode 100644 meta/recipes-extended/wget/wget/CVE-2026-58470.patch

diff --git a/meta/recipes-extended/wget/wget/CVE-2026-58470.patch b/meta/recipes-extended/wget/wget/CVE-2026-58470.patch
new file mode 100644
index 0000000000..7ee4e87344
--- /dev/null
+++ b/meta/recipes-extended/wget/wget/CVE-2026-58470.patch
@@ -0,0 +1,79 @@
+From bfbab29e0a94160b283a8101e122d07684104955 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Tim=20R=C3=BChsen?= <tim.ruehsen@gmx.de>
+Date: Mon, 29 Jun 2026 18:57:54 +0200
+Subject: [PATCH] * src/http.c (parse_content_range): Fix integer overflow
+
+Reported-by: TristanInSec@gmail.com
+
+CVE: CVE-2026-58470
+Upstream-Status: Backport [https://gitlab.com/gnuwget/wget/-/commit/43d3ba9336bc94937e6fae2365c6ffd30c34ffcf]
+
+(cherry picked from commit 43d3ba9336bc94937e6fae2365c6ffd30c34ffcf)
+Signed-off-by: Hetvi Thakar <hthakar@cisco.com>
+---
+ src/http.c | 35 ++++++++++++++++++++++++-----------
+ 1 file changed, 24 insertions(+), 11 deletions(-)
+
+diff --git a/src/http.c b/src/http.c
+index 116a93a3..4dc6b70f 100644
+--- a/src/http.c
++++ b/src/http.c
+@@ -914,6 +914,7 @@ parse_content_range (const char *hdr, wgint *first_byte_ptr,
+                      wgint *last_byte_ptr, wgint *entity_length_ptr)
+ {
+   wgint num;
++  char *end;
+ 
+   /* Ancient versions of Netscape proxy server, presumably predating
+      rfc2068, sent out `Content-Range' without the "bytes"
+@@ -932,27 +933,39 @@ parse_content_range (const char *hdr, wgint *first_byte_ptr,
+     }
+   if (!c_isdigit (*hdr))
+     return false;
+-  for (num = 0; c_isdigit (*hdr); hdr++)
+-    num = 10 * num + (*hdr - '0');
+-  if (*hdr != '-' || !c_isdigit (*(hdr + 1)))
++
++  errno = 0;
++  num = strtol(hdr, &end, 10);
++  if (errno == ERANGE)
++    return false;
++  hdr = end;
++
++  if (*hdr++ != '-' || !c_isdigit (*hdr))
+     return false;
+   *first_byte_ptr = num;
+-  ++hdr;
+-  for (num = 0; c_isdigit (*hdr); hdr++)
+-    num = 10 * num + (*hdr - '0');
+-  if (*hdr != '/')
++
++  errno = 0;
++  num = strtol(hdr, &end, 10);
++  if (errno == ERANGE)
++    return false;
++  hdr = end;
++
++  if (*hdr++ != '/')
+     return false;
+   *last_byte_ptr = num;
+-  if (!(c_isdigit (*(hdr + 1)) || *(hdr + 1) == '*'))
++  if (!(c_isdigit (*hdr) || *hdr == '*'))
+     return false;
+   if (*last_byte_ptr < *first_byte_ptr)
+     return false;
+-  ++hdr;
+   if (*hdr == '*')
+     num = -1;
+   else
+-    for (num = 0; c_isdigit (*hdr); hdr++)
+-      num = 10 * num + (*hdr - '0');
++    {
++      errno = 0;
++      num = strtol(hdr, NULL, 10);
++      if (errno == ERANGE)
++        return false;
++    }
+   *entity_length_ptr = num;
+   if ((*entity_length_ptr <= *last_byte_ptr) && *entity_length_ptr != -1)
+     return false;
diff --git a/meta/recipes-extended/wget/wget_1.21.4.bb b/meta/recipes-extended/wget/wget_1.21.4.bb
index cb05ff34f8..50df38aab1 100644
--- a/meta/recipes-extended/wget/wget_1.21.4.bb
+++ b/meta/recipes-extended/wget/wget_1.21.4.bb
@@ -5,6 +5,7 @@ SRC_URI = "${GNU_MIRROR}/wget/wget-${PV}.tar.gz \
            file://CVE-2026-58469.patch \
            file://CVE-2026-58469-regression_p1.patch \
            file://CVE-2026-58469-regression_p2.patch \
+           file://CVE-2026-58470.patch \
           "
 
 SRC_URI[sha256sum] = "81542f5cefb8faacc39bbbc6c82ded80e3e4a88505ae72ea51df27525bcde04c"
-- 
2.35.6