{"schema_version":"1.7.2","id":"OESA-2026-2870","modified":"2026-07-06T06:31:07Z","published":"2026-07-06T06:31:07Z","upstream":["CVE-2026-46331"],"summary":"kernel security update","details":"The Linux Kernel, the operating system core itself.\r\n\r\nSecurity Fix(es):\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nnet/sched: fix pedit partial COW leading to page cache corruption\n\ntcf_pedit_act() computes the COW range for skb_ensure_writable()\nonce before the key loop using tcfp_off_max_hint, but the hint does\nnot account for the runtime header offset added by typed keys. This\ncan leave part of the write region un-COW'd.\n\nFix by moving skb_ensure_writable() inside the per-key loop where\nthe actual write offset is known, and add overflow checking on the\noffset arithmetic. For negative offsets (e.g. Ethernet header edits\nat ingress), use skb_cow() to COW the headroom instead. Guard\noffset_valid() against INT_MIN, where negation is undefined.(CVE-2026-46331)","affected":[{"package":{"ecosystem":"openEuler:20.03-LTS-SP4","name":"kernel","purl":"pkg:rpm/openEuler/kernel&distro=openEuler-20.03-LTS-SP4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.19.90-2606.5.0.0378.oe2003sp4"}]}],"ecosystem_specific":{"aarch64":["bpftool-4.19.90-2606.5.0.0378.oe2003sp4.aarch64.rpm","bpftool-debuginfo-4.19.90-2606.5.0.0378.oe2003sp4.aarch64.rpm","kernel-4.19.90-2606.5.0.0378.oe2003sp4.aarch64.rpm","kernel-debuginfo-4.19.90-2606.5.0.0378.oe2003sp4.aarch64.rpm","kernel-debugsource-4.19.90-2606.5.0.0378.oe2003sp4.aarch64.rpm","kernel-devel-4.19.90-2606.5.0.0378.oe2003sp4.aarch64.rpm","kernel-source-4.19.90-2606.5.0.0378.oe2003sp4.aarch64.rpm","kernel-tools-4.19.90-2606.5.0.0378.oe2003sp4.aarch64.rpm","kernel-tools-debuginfo-4.19.90-2606.5.0.0378.oe2003sp4.aarch64.rpm","kernel-tools-devel-4.19.90-2606.5.0.0378.oe2003sp4.aarch64.rpm","perf-4.19.90-2606.5.0.0378.oe2003sp4.aarch64.rpm","perf-debuginfo-4.19.90-2606.5.0.0378.oe2003sp4.aarch64.rpm","python2-perf-4.19.90-2606.5.0.0378.oe2003sp4.aarch64.rpm","python2-perf-debuginfo-4.19.90-2606.5.0.0378.oe2003sp4.aarch64.rpm","python3-perf-4.19.90-2606.5.0.0378.oe2003sp4.aarch64.rpm","python3-perf-debuginfo-4.19.90-2606.5.0.0378.oe2003sp4.aarch64.rpm"],"src":["kernel-4.19.90-2606.5.0.0378.oe2003sp4.src.rpm"],"x86_64":["bpftool-4.19.90-2606.5.0.0378.oe2003sp4.x86_64.rpm","bpftool-debuginfo-4.19.90-2606.5.0.0378.oe2003sp4.x86_64.rpm","kernel-4.19.90-2606.5.0.0378.oe2003sp4.x86_64.rpm","kernel-debuginfo-4.19.90-2606.5.0.0378.oe2003sp4.x86_64.rpm","kernel-debugsource-4.19.90-2606.5.0.0378.oe2003sp4.x86_64.rpm","kernel-devel-4.19.90-2606.5.0.0378.oe2003sp4.x86_64.rpm","kernel-source-4.19.90-2606.5.0.0378.oe2003sp4.x86_64.rpm","kernel-tools-4.19.90-2606.5.0.0378.oe2003sp4.x86_64.rpm","kernel-tools-debuginfo-4.19.90-2606.5.0.0378.oe2003sp4.x86_64.rpm","kernel-tools-devel-4.19.90-2606.5.0.0378.oe2003sp4.x86_64.rpm","perf-4.19.90-2606.5.0.0378.oe2003sp4.x86_64.rpm","perf-debuginfo-4.19.90-2606.5.0.0378.oe2003sp4.x86_64.rpm","python2-perf-4.19.90-2606.5.0.0378.oe2003sp4.x86_64.rpm","python2-perf-debuginfo-4.19.90-2606.5.0.0378.oe2003sp4.x86_64.rpm","python3-perf-4.19.90-2606.5.0.0378.oe2003sp4.x86_64.rpm","python3-perf-debuginfo-4.19.90-2606.5.0.0378.oe2003sp4.x86_64.rpm"]}}],"references":[{"type":"ADVISORY","url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-2870"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46331"}],"database_specific":{"severity":"High"}}