diff mbox series

[scarthgap,5/7] curl: fix CVE-2026-92389

Message ID 20261106144134.1370928-6-joaomarcos.costa@bootlin.com
State Under Review
Delegated to: Jérémy ROSEN
Headers show
Series curl: fix High scored CVEs | expand

Commit Message

João Marcos Costa (Schneider Electric) Nov. 6, 2026, 2:41 p.m. UTC 
This vulnerability, marked as High [1], was fixed upstream [2] since
v8.23.0.

Backport the fix to curl v8.7.1.

[1] https://nvd.nist.gov/vuln/detail/cve-2026-92389
[2] https://curl.se/docs/CVE-2026-92389.html

Signed-off-by: João Marcos Costa (Schneider Electric) <joaomarcos.costa@bootlin.com>
---
 .../curl/curl/CVE-2026-92389.patch            | 56 +++++++++++++++++++
 meta/recipes-support/curl/curl_8.7.1.bb       |  1 +
 2 files changed, 57 insertions(+)
 create mode 100644 meta/recipes-support/curl/curl/CVE-2026-92389.patch
diff mbox series

Patch

diff --git a/meta/recipes-support/curl/curl/CVE-2026-92389.patch b/meta/recipes-support/curl/curl/CVE-2026-92389.patch
new file mode 100644
index 0000000000..1f568fe2a0
--- /dev/null
+++ b/meta/recipes-support/curl/curl/CVE-2026-92389.patch
@@ -0,0 +1,56 @@ 
+From ab9213549c9c7f087cbaa818492705b482c4309d Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Jo=C3=A3o=20Marcos=20Costa?= <joaomarcos.costa@bootlin.com>
+Date: Fri, 6 Nov 2026 10:31:16 +0100
+Subject: [PATCH] tftp: verify direction in a few places
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Closes #22974
+
+CVE: CVE-2026-92389
+Upstream-Status: Backport [https://github.com/curl/curl/commit/63dd390fab905a239a97e2700532929343ebc4e9]
+
+Signed-off-by: João Marcos Costa <joaomarcos.costa@bootlin.com>
+---
+ lib/tftp.c | 9 +++++++++
+ 1 file changed, 9 insertions(+)
+
+diff --git a/lib/tftp.c b/lib/tftp.c
+index ff2b7b7457..def944ddd5 100644
+--- a/lib/tftp.c
++++ b/lib/tftp.c
+@@ -545,10 +545,14 @@ static CURLcode tftp_send_first(struct tftp_state_data *state,
+     break;
+ 
+   case TFTP_EVENT_ACK: /* Connected for transmit */
++    if(!data->state.upload)
++      return CURLE_TFTP_ILLEGAL;
+     result = tftp_connect_for_tx(state, event);
+     break;
+ 
+   case TFTP_EVENT_DATA: /* Connected for receive */
++    if(!data->state.upload)
++      return CURLE_TFTP_ILLEGAL;
+     result = tftp_connect_for_rx(state, event);
+     break;
+ 
+@@ -709,6 +713,9 @@ static CURLcode tftp_tx(struct tftp_state_data *state, tftp_event_t event)
+   char *bufptr;
+   bool eos;
+ 
++  if(!data->state.upload)
++    return CURLE_TFTP_ILLEGAL;
++
+   switch(event) {
+ 
+   case TFTP_EVENT_ACK:
+@@ -1131,6 +1138,8 @@ static CURLcode tftp_receive_packet(struct Curl_easy *data)
+ 
+     switch(state->event) {
+     case TFTP_EVENT_DATA:
++      if(!data->state.upload)
++        return CURLE_TFTP_ILLEGAL;
+       /* Don't pass to the client empty or retransmitted packets */
+       if(state->rbytes > 4 &&
+          (NEXT_BLOCKNUM(state->block) == getrpacketblock(&state->rpacket))) {
diff --git a/meta/recipes-support/curl/curl_8.7.1.bb b/meta/recipes-support/curl/curl_8.7.1.bb
index 12db6c0c24..39e804a1c3 100644
--- a/meta/recipes-support/curl/curl_8.7.1.bb
+++ b/meta/recipes-support/curl/curl_8.7.1.bb
@@ -47,6 +47,7 @@  SRC_URI = "https://curl.se/download/${BP}.tar.xz \
            file://CVE-2026-87864.patch \
            file://CVE-2026-87865.patch \
            file://CVE-2026-92386.patch \
+           file://CVE-2026-92389.patch \
            "
 
 SRC_URI:append:class-nativesdk = " \