Hi Fabien Thomas,

Thanks for providing the feedback.

On Fri, Mar 20, 2026 at 7:59 PM Fabien Thomas <[email protected]>
wrote:

> On Fri Mar 20, 2026 at 8:56 AM CET, Vijay Anusuri via
> lists.openembedded.org wrote:
> > From: Vijay Anusuri <[email protected]>
> >
> > import patch from ubuntu to fix
> >  CVE-2026-3784
> >
> > Upstream-Status: Backport [import from ubuntu
> curl_7.81.0-1ubuntu1.23.debian.tar.xz
> > Upstream commit
> https://github.com/curl/curl/commit/5f13a7645e565c5c1a06f3]
> >
> > Reference: https://curl.se/docs/CVE-2026-3784.html
> >            https://ubuntu.com/security/CVE-2026-3784
> >
> > Signed-off-by: Vijay Anusuri <[email protected]>
> > ---
> >  .../curl/curl/CVE-2026-3784.patch             | 74 +++++++++++++++++++
> >  meta/recipes-support/curl/curl_7.82.0.bb      |  1 +
> >  2 files changed, 75 insertions(+)
> >  create mode 100644 meta/recipes-support/curl/curl/CVE-2026-3784.patch
> >
> > diff --git a/meta/recipes-support/curl/curl/CVE-2026-3784.patch
> b/meta/recipes-support/curl/curl/CVE-2026-3784.patch
> > new file mode 100644
> > index 0000000000..8f3d56bab9
> > --- /dev/null
> > +++ b/meta/recipes-support/curl/curl/CVE-2026-3784.patch
> > @@ -0,0 +1,74 @@
> > +Backport of:
> > +
> > +From 5f13a7645e565c5c1a06f3ef86e97afb856fb364 Mon Sep 17 00:00:00 2001
> > +From: Stefan Eissing <[email protected]>
> > +Date: Fri, 6 Mar 2026 14:54:09 +0100
> > +Subject: [PATCH] proxy-auth: additional tests
> > +
> > +Also eliminate the special handling for socks proxy match.
> > +
> > +Closes #20837
> > +
> > +Upstream-Status: Backport [import from ubuntu
> curl_7.81.0-1ubuntu1.23.debian.tar.xz
> > +Upstream commit
> https://github.com/curl/curl/commit/5f13a7645e565c5c1a06f3]
> > +CVE: CVE-2026-3784
> > +Signed-off-by: Vijay Anusuri <[email protected]>
> > +---
> > + lib/url.c                        | 28 +++++++---------------------
> > + tests/http/test_13_proxy_auth.py | 20 ++++++++++++++++++++
> > + tests/http/testenv/curl.py       | 18 +++++++++++++++---
> > + 3 files changed, 42 insertions(+), 24 deletions(-)
> > +
> > +--- a/lib/url.c
> > ++++ b/lib/url.c
> > +@@ -930,33 +930,15 @@ proxy_info_matches(const struct proxy_in
> > + {
> > +   if((data->proxytype == needle->proxytype) &&
> > +      (data->port == needle->port) &&
> > +-     Curl_safe_strcasecompare(data->host.name, needle->host.name))
> > +-    return TRUE;
> > ++     curl_strequal(data->host.name, needle->host.name)) {
> > +
> > ++    if(Curl_timestrcmp(data->user, needle->user) ||
> > ++       Curl_timestrcmp(data->passwd, needle->passwd))
> > ++      return FALSE;
> > ++    return TRUE;
> > ++  }
> > +   return FALSE;
> > + }
> > +-
> > +-static bool
> > +-socks_proxy_info_matches(const struct proxy_info *data,
> > +-                         const struct proxy_info *needle)
> > +-{
> > +-  if(!proxy_info_matches(data, needle))
> > +-    return FALSE;
> > +-
> > +-  /* the user information is case-sensitive
> > +-     or at least it is not defined as case-insensitive
> > +-     see https://datatracker.ietf.org/doc/html/rfc3986#section-3.2.1
> */
> > +-
> > +-  /* curl_strequal does a case insentive comparison, so do not use it
> here! */
> > +-  if(Curl_timestrcmp(data->user, needle->user) ||
> > +-     Curl_timestrcmp(data->passwd, needle->passwd))
> > +-    return FALSE;
> > +-  return TRUE;
> > +-}
> > +-#else
> > +-/* disabled, won't get called */
> > +-#define proxy_info_matches(x,y) FALSE
> > +-#define socks_proxy_info_matches(x,y) FALSE
> > + #endif
> > +
> > + /* A connection has to have been idle for a shorter time than
> 'maxage_conn'
> > +@@ -1282,8 +1264,8 @@ ConnectionExists(struct Curl_easy *data,
> > +         continue;
> > +
> > +       if(needle->bits.socksproxy &&
> > +-        !socks_proxy_info_matches(&needle->socks_proxy,
> > +-                                  &check->socks_proxy))
> > ++        !proxy_info_matches(&needle->socks_proxy,
> > ++                            &check->socks_proxy))
> > +         continue;
> > + #endif
> > +       if(needle->bits.conn_to_host != check->bits.conn_to_host)
> > diff --git a/meta/recipes-support/curl/curl_7.82.0.bb
> b/meta/recipes-support/curl/curl_7.82.0.bb
> > index 8fdd954c7e..c33183e096 100644
> > --- a/meta/recipes-support/curl/curl_7.82.0.bb
> > +++ b/meta/recipes-support/curl/curl_7.82.0.bb
> > @@ -74,6 +74,7 @@ SRC_URI = "https://curl.se/download/${BP}.tar.xz \
> >             file://CVE-2026-1965-1.patch \
> >             file://CVE-2026-1965-2.patch \
> >             file://CVE-2026-3783.patch \
> > +           file://CVE-2026-3784.patch \
> >             "
> >  SRC_URI[sha256sum] =
> "0aaa12d7bd04b0966254f2703ce80dd5c38dbbd76af0297d3d690cdce58a583c"
> >
> Hi Vijay,
>
> This my general feedback on the whole curl patch series.
>
> I noticed quite big differences between the upstream commits you cited and
> the
> ones actually provided in this series. If these backports are from Ubuntu
> or Debian, please include the direct links to those commits as well.
>
> --> The previous Ubuntu commit link (
https://git.launchpad.net/ubuntu/+source/curl/tree/debian/patches?h=ubuntu/jammy-security)
is currently not accessible.

I’ve referenced the tarball version instead:
https://launchpad.net/ubuntu/+archive/primary/+sourcefiles/curl/7.81.0-1ubuntu1.23/curl_7.81.0-1ubuntu1.23.debian.tar.xz

Would it be okay if I include this download link in the patch?

> Additionally, your backport for CVE-2025-14524 ([PATCH 1/4]) differs
> from the one by Amaury Couderc, which has already been merged into
> scarthgap.
> Maybe it would be simplier to cherry-picked it ?
>

--> Version in kirkstone is different from scarthgap. I will try to
cherry-pick and send a V2 patch.

>
> One last detail regarding formatting: the last four patches include
> a 'Backport of' prefix in the patch header. While not strictly forbidden,
> this is unusual and adds unnecessary noise.
> Could you please remove these headers next time?
>

--> Sure. I will remove those unusual headers.

>
> Thanks.
>
> Regards,
> --
> Fabien Thomas
> Smile ECS
>
>
Thanks & Regards,
Vijay
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