In the Linux kernel, the following vulnerability has been resolved:
ipvs: fix reversed sequence option serialization
hton_seq() expects the host-order source first and the unaligned network-order destination second. The version 1 sync sender passes these arguments in reverse for both sequence blocks. This leaves 24 bytes of the kmalloc-backed message unwritten. It may disclose stale heap data and replace the live connection sequence state with values read from the buffer.
Pass the connection sequence state as the source and the message payload as the destination for both blocks.
CVSS Details
- CVSS 3.1 Base Score: 4.4
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon_linux_2023 | — | Upgrade kernel6.18-toolsUpgrade perf6.18-debuginfoUpgrade bpftool6.12-debuginfoUpgrade python3-perf6.12-debuginfoUpgrade kernel6.18-develUpgrade kernel6.18-debuginfo-common-x86_64Upgrade kernel6.12-debuginfoUpgrade kernel6.18-tools-develUpgrade kernel6.18-headersUpgrade perf6.12-debuginfoUpgrade bpftool6.12Upgrade kernel-livepatch-6.12.111-136.204Upgrade kernel6.12-toolsUpgrade microvm-kernel6.18Upgrade bpftool6.18-debuginfoUpgrade kernel6.18-debuginfoUpgrade kernel6.18-modules-extraUpgrade kernel6.12-tools-debuginfoUpgrade kernel-livepatch-6.18.54-121.166Upgrade kernel6.12-modules-extraUpgrade kernel6.12Upgrade kernel6.18-tools-debuginfoUpgrade python3-perf6.18-debuginfoUpgrade kernel6.12-develUpgrade kernel6.12-debuginfo-common-aarch64Upgrade kernel6.12-headersUpgrade kernel6.12-debuginfo-common-x86_64Upgrade kernel6.18-debuginfo-common-aarch64Upgrade python3-perf6.12Upgrade kernel6.18-modules-extra-commonUpgrade perf6.12Upgrade kernel6.12-modules-extra-commonUpgrade kernel6.12-tools-develUpgrade perf6.18Upgrade bpftool6.18Upgrade kernel6.18Upgrade python3-perf6.18 | Oct 13, 2026 | Sep 25, 2026 |
| Debian | — | Upgrade linuxUpgrade linux-6.12 | Sep 30, 2026 | Sep 25, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Oct 13, 2026 | Sep 25, 2026 |
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