In the Linux kernel, the following vulnerability has been resolved:
mptcp: Use __sk_dst_get() and dst_dev_rcu() in mptcp_active_enable().
mptcp_active_enable() is called from subflow_finish_connect(), which is icsk->icsk_af_ops->sk_rx_dst_set() and it's not always under RCU.
Using sk_dst_get(sk)->dev could trigger UAF.
Let's use __sk_dst_get() and dst_dev_rcu().
CVSS Details
- CVSS 3.1 Base Score: 8.1
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon_linux_2023 | — | Upgrade kernel6.12-libbpf-debuginfoUpgrade kernel6.12-headersUpgrade kernel-livepatch-6.12.55-74.119Upgrade kernel6.12-modules-extraUpgrade kernel6.12-debuginfo-common-aarch64Upgrade perf6.12Upgrade bpftool6.12-debuginfoUpgrade kernel6.12Upgrade kernel6.12-libbpf-staticUpgrade perf6.12-debuginfoUpgrade kernel6.12-debuginfo-common-x86_64Upgrade kernel6.12-libbpf-develUpgrade python3-perf6.12-debuginfoUpgrade kernel6.12-libbpfUpgrade kernel6.12-tools-debuginfoUpgrade kernel6.12-debuginfoUpgrade kernel6.12-develUpgrade bpftool6.12Upgrade python3-perf6.12Upgrade kernel6.12-tools-develUpgrade kernel6.12-toolsUpgrade kernel6.12-modules-extra-common | Dec 9, 2025 | Nov 12, 2025 |
| Debian | — | Upgrade linux | Jul 23, 2026 | Jul 23, 2026 |
| Oracle_linux | — | Upgrade kernel | Feb 11, 2026 | Nov 12, 2025 |
| Redhat_linux | — | Upgrade kernel-rtUpgrade kernel | Feb 4, 2026 | Nov 12, 2025 |
| Rocky_linux | — | Upgrade python3-perf-debuginfoUpgrade kernel-rt-develUpgrade kernel-uki-virt-addonsUpgrade kernel-tools-libsUpgrade kernel-rt-modules-coreUpgrade kernel-debug-modulesUpgrade kernel-rt-debug-modules-coreUpgrade kernelUpgrade libperf-debuginfoUpgrade kernel-modules-extra-matchedUpgrade kernel-tools-libs-develUpgrade kernel-debuginfo-common-s390xUpgrade kernel-debug-uki-virtUpgrade kernel-rtUpgrade kernel-rt-debug-coreUpgrade kernel-debug-modules-coreUpgrade kernel-rt-debug-debuginfoUpgrade kernel-rt-modules-extraUpgrade rvUpgrade kernel-rt-debuginfoUpgrade kernel-zfcpdump-debuginfoUpgrade kernel-rt-debugUpgrade kernel-develUpgrade kernel-zfcpdump-coreUpgrade python3-perfUpgrade kernel-zfcpdump-devel-matchedUpgrade kernel-toolsUpgrade kernel-rt-modulesUpgrade kernel-modulesUpgrade kernel-modules-extraUpgrade kernel-zfcpdumpUpgrade kernel-modules-coreUpgrade kernel-debug-develUpgrade rtlaUpgrade kernel-zfcpdump-modules-extraUpgrade kernel-debuginfo-common-x86_64Upgrade perfUpgrade kernel-rt-coreUpgrade kernel-zfcpdump-modulesUpgrade kernel-debug-devel-matchedUpgrade kernel-debuginfoUpgrade kernel-debug-modules-extraUpgrade kernel-debug-coreUpgrade kernel-debugUpgrade kernel-zfcpdump-modules-coreUpgrade kernel-rt-debug-modules-extraUpgrade kernel-debug-debuginfoUpgrade kernel-coreUpgrade kernel-zfcpdump-develUpgrade kernel-rt-debug-modulesUpgrade libperfUpgrade kernel-tools-debuginfoUpgrade kernel-devel-matchedUpgrade perf-debuginfoUpgrade kernel-uki-virtUpgrade kernel-rt-debug-devel | Feb 16, 2026 | Feb 15, 2026 |
| Ubuntu | — | Upgrade linux-image-gcp-64k-6.17Upgrade linux-image-6.17.0-1007-gcp-64kUpgrade linux-image-awsUpgrade linux-image-6.17.0-1008-raspiUpgrade linux-image-6.17.0-1011-oemUpgrade linux-image-oracleUpgrade linux-image-aws-64kUpgrade linux-image-realtimeUpgrade linux-image-oracle-6.17Upgrade linux-image-gcp-6.17Upgrade linux-image-oracle-64k-6.17Upgrade linux-image-6.17.0-14-generic-64kUpgrade linux-image-virtualUpgrade linux-image-6.17.0-1007-awsUpgrade linux-image-oem-6.17Upgrade linux-image-aws-6.17Upgrade linux-image-realtime-6.17Upgrade linux-image-raspiUpgrade linux-image-6.17.0-1007-oracleUpgrade linux-image-generic-64k-6.17Upgrade linux-image-virtual-6.17Upgrade linux-image-aws-64k-6.17Upgrade linux-image-gcp-64kUpgrade linux-image-oracle-64kUpgrade linux-image-6.17.0-1007-oracle-64kUpgrade linux-image-raspi-6.17Upgrade linux-image-gcpUpgrade linux-image-generic-64kUpgrade linux-image-6.17.0-1008-azureUpgrade linux-image-genericUpgrade linux-image-6.17.0-1007-aws-64kUpgrade linux-image-6.17.0-1006-realtimeUpgrade linux-image-generic-6.17Upgrade linux-image-6.17.0-14-genericUpgrade linux-image-azure-6.17Upgrade linux-image-6.17.0-1007-gcpUpgrade linux-image-azure | Feb 13, 2026 | Feb 12, 2026 |
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