On Fri Jul 3, 2026 at 11:25 AM CEST, Jaipaul Cheernam via lists.openembedded.org wrote: > Remove PROTOPT_CONN_REUSE from SMB handler flags to prevent > connection pooling. Without this, a second SMB request to the same > host reuses a connection authenticated for a different share. > > Reference: https://curl.se/docs/CVE-2026-5773.html > > Signed-off-by: Jaipaul Cheernam <[email protected]> > --- > Changes v3 -> v4: > - Rebased on latest wrynose (5d1aa5c806c0) > - Refreshed patch context to eliminate fuzz on hunk #2 > > .../curl/curl/CVE-2026-5773.patch | 48 +++++++++++++++++++ > meta/recipes-support/curl/curl_8.19.0.bb | 1 + > 2 files changed, 49 insertions(+) > create mode 100644 meta/recipes-support/curl/curl/CVE-2026-5773.patch > > diff --git a/meta/recipes-support/curl/curl/CVE-2026-5773.patch > b/meta/recipes-support/curl/curl/CVE-2026-5773.patch > new file mode 100644 > index 0000000000..1b60191da8 > --- /dev/null > +++ b/meta/recipes-support/curl/curl/CVE-2026-5773.patch > @@ -0,0 +1,48 @@ > +From e5c7f93734345260820ca46b29db85f75d277399 Mon Sep 17 00:00:00 2001 > +From: Daniel Stenberg <[email protected]> > +Date: Sun, 5 Apr 2026 18:23:35 +0200 > +Subject: [PATCH] protocol: disable connection reuse for SMB(S) > + > +Connections should only be reused when using the same "share" (and > +perhaps some additional conditions), but instead of fixing this flaw, > +this change completely disables connection reuse for SMB. This protocol > +is about to get dropped soon anyway. > + > +Reported-by: Osama Hamad > +Closes #21238 > +Signed-off-by: Daniel Stenberg <[email protected]> > + > +CVE: CVE-2026-5773 > +Upstream-Status: Backport > [https://github.com/curl/curl/commit/74a169575d6412dc0ff532acdf94de35a6c2a571]
Hello, The referenced upstream patch does not have "Signed-off-by: Daniel Stenberg <[email protected]>". Why did you add it? Regards, > + > +Note: The upstream fix targets lib/protocol.c which was introduced in > +curl 8.20.0. In 8.19.0 the SMB handler flags are still in lib/smb.c, > +so this patch removes PROTOPT_CONN_REUSE there instead. The effect is > +identical: SMB connections are no longer pooled for reuse. > + > +Signed-off-by: Jaipaul Cheernam <[email protected]> > +--- > + lib/smb.c | 4 ++-- > + 1 file changed, 2 insertions(+), 2 deletions(-) > + > +diff --git a/lib/smb.c b/lib/smb.c > +index 00297ad..c15fdce 100644 > +--- a/lib/smb.c > ++++ b/lib/smb.c > +@@ -1242,7 +1242,7 @@ const struct Curl_scheme Curl_scheme_smb = { > + #endif > + CURLPROTO_SMB, /* protocol */ > + CURLPROTO_SMB, /* family */ > +- PROTOPT_CONN_REUSE, /* flags */ > ++ PROTOPT_NONE, /* flags */ > + PORT_SMB, /* defport */ > + }; > + > +@@ -1259,6 +1259,6 @@ const struct Curl_scheme Curl_scheme_smbs = { > + #endif > + CURLPROTO_SMBS, /* protocol */ > + CURLPROTO_SMB, /* family */ > +- PROTOPT_SSL | PROTOPT_CONN_REUSE, /* flags */ > ++ PROTOPT_SSL, /* flags */ > + PORT_SMBS, /* defport */ > + }; > diff --git a/meta/recipes-support/curl/curl_8.19.0.bb > b/meta/recipes-support/curl/curl_8.19.0.bb > index d58b774011..3326f478b5 100644 > --- a/meta/recipes-support/curl/curl_8.19.0.bb > +++ b/meta/recipes-support/curl/curl_8.19.0.bb > @@ -15,6 +15,7 @@ SRC_URI = " \ > file://disable-tests \ > file://no-test-timeout.patch \ > file://CVE-2026-6276.patch \ > + file://CVE-2026-5773.patch \ > file://mbedtls.patch \ > " >
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