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Mon, 20 Apr 2026 04:51:05 -0700 (PDT) Received: from desktop ([51.154.145.205]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-488fc1c773fsm314595715e9.12.2026.04.20.04.51.05 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 20 Apr 2026 04:51:05 -0700 (PDT) From: Gyorgy Sarvari To: openembedded-devel@lists.openembedded.org Subject: [meta-networking][whinlatter][PATCH 3/3] corosync: patch CVE-2026-35092 Date: Mon, 20 Apr 2026 13:51:00 +0200 Message-ID: <20260420115102.428743-3-skandigraun@gmail.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260420115102.428743-1-skandigraun@gmail.com> References: <20260420115102.428743-1-skandigraun@gmail.com> MIME-Version: 1.0 List-Id: X-Webhook-Received: from 45-33-107-173.ip.linodeusercontent.com [45.33.107.173] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Mon, 20 Apr 2026 11:51:17 -0000 X-Groupsio-URL: https://lists.openembedded.org/g/openembedded-devel/message/126502 Details: https://nvd.nist.gov/vuln/detail/CVE-2026-35092 Pick the patch that mentions the CVE ID explicitly (the same commit was identified by Debian also[1]) [1]: https://security-tracker.debian.org/tracker/CVE-2026-35092 Signed-off-by: Gyorgy Sarvari --- .../corosync/corosync/CVE-2026-35092.patch | 57 +++++++++++++++++++ .../corosync/corosync_3.1.10.bb | 1 + 2 files changed, 58 insertions(+) create mode 100644 meta-networking/recipes-extended/corosync/corosync/CVE-2026-35092.patch diff --git a/meta-networking/recipes-extended/corosync/corosync/CVE-2026-35092.patch b/meta-networking/recipes-extended/corosync/corosync/CVE-2026-35092.patch new file mode 100644 index 0000000000..a085d2a29f --- /dev/null +++ b/meta-networking/recipes-extended/corosync/corosync/CVE-2026-35092.patch @@ -0,0 +1,57 @@ +From 8f8a4747a0223b8897deda9a40a8a099c61fa80f Mon Sep 17 00:00:00 2001 +From: Jan Friesse +Date: Thu, 2 Apr 2026 09:44:06 +0200 +Subject: [PATCH] totemsrp: Fix integer overflow in memb_join_sanity +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +This commit addresses an integer overflow (wraparound) vulnerability +in the check_memb_join_sanity function. + +Previously, the 32-bit unsigned network values proc_list_entries and +failed_list_entries were added together before being promoted to +size_t. This allowed the addition to wrap around in 32-bit arithmetic +(e.g., 0x80000000 + 0x80000000 = 0), resulting in a required_len +calculation that was incorrectly small. + +The solution is to cast the list entries to size_t and verify that +neither exceeds the maximum allowed value before the addition occurs. + +Fixes: CVE-2026-35092 + +Reported-by: Sebastián Alba Vives (@Sebasteuo / 0xS4bb1) +Signed-off-by: Jan Friesse +Also-proposed-by: nicholasyang +Reviewed-by: Christine Caulfield + +CVE: CVE-2026-35092 +Upstream-Status: Backport [https://github.com/corosync/corosync/commit/4082294f5094a7591e4e00658c5a605f05d644f1] +Signed-off-by: Gyorgy Sarvari +--- + exec/totemsrp.c | 12 +++++++++++- + 1 file changed, 11 insertions(+), 1 deletion(-) + +diff --git a/exec/totemsrp.c b/exec/totemsrp.c +index 94d6c21..6845cec 100644 +--- a/exec/totemsrp.c ++++ b/exec/totemsrp.c +@@ -3786,7 +3786,17 @@ static int check_memb_join_sanity( + failed_list_entries = swab32(failed_list_entries); + } + +- required_len = sizeof(struct memb_join) + ((proc_list_entries + failed_list_entries) * sizeof(struct srp_addr)); ++ if (proc_list_entries > PROCESSOR_COUNT_MAX || ++ failed_list_entries > PROCESSOR_COUNT_MAX) { ++ log_printf (instance->totemsrp_log_level_security, ++ "Received memb_join message list_entries exceeds the maximum " ++ "allowed value... ignoring."); ++ ++ return (-1); ++ } ++ ++ required_len = sizeof(struct memb_join) + ++ (((size_t)proc_list_entries + (size_t)failed_list_entries) * sizeof(struct srp_addr)); + if (msg_len < required_len) { + log_printf (instance->totemsrp_log_level_security, + "Received memb_join message is too short... ignoring."); diff --git a/meta-networking/recipes-extended/corosync/corosync_3.1.10.bb b/meta-networking/recipes-extended/corosync/corosync_3.1.10.bb index 7ccccefed5..77dea16e98 100644 --- a/meta-networking/recipes-extended/corosync/corosync_3.1.10.bb +++ b/meta-networking/recipes-extended/corosync/corosync_3.1.10.bb @@ -10,6 +10,7 @@ inherit autotools pkgconfig systemd github-releases SRC_URI = "${GITHUB_BASE_URI}/download/v${PV}/${BP}.tar.gz \ file://corosync.conf \ file://CVE-2026-35091.patch \ + file://CVE-2026-35092.patch \ " SRC_URI[sha256sum] = "be361c827f99b215b3bd3fa2fb071c03dac6831c2a351963d938caef62604bc8" UPSTREAM_CHECK_GITTAGREGEX = "v(?P\d+(\.\d+)+)"