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CVE-2026-46300: Linux, грешка в паметта

7.8

CVSS 3.1

Няма данни

Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

Да

Атакува се

в каталога KEV от 28 октомври 2026

Атакува се в момента

158 дни

Време до експлоатация

след публикуването

Атакува се локално, без особени условия, с обикновен потребителски вход и без действие от потребителя.

CVE радар: още уязвимости от този вид

  • Експлоатация: активно се експлоатира
  • Атаката не може да се автоматизира

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: net: skbuff: preserve shared-frag marker during coalescing skb_try_coalesce() can attach paged frags from @from to @to. If @from has SKBFL_SHARED_FRAG set, the resulting @to skb can contain the same externally-owned or page-cache-backed frags, but the shared-frag marker is currently lost. That breaks the invariant relied on by later in-place writers. In particular, ESP input checks skb_has_shared_frag() before deciding whether an uncloned nonlinear skb can skip skb_cow_data(). If TCP receive coalescing has moved shared frags into an unmarked skb, ESP can see skb_has_shared_frag() as false and decrypt in place over page-cache backed frags. Propagate SKBFL_SHARED_FRAG when skb_try_coalesce() transfers paged frags. The tailroom copy path does not need the marker because it copies bytes into @to's linear data rather than transferring frag descriptors.

Засегнати продукти

  • Linux Linux: cef401de7be8c4e155c6746bfccf721a4fa5fab9 преди 3599e6b3cc1ada96883d496a50a210d3afbb6987; cef401de7be8c4e155c6746bfccf721a4fa5fab9 преди 2f2b16022a2e10ca7bccfb98db5ed2ec0f72641c; cef401de7be8c4e155c6746bfccf721a4fa5fab9 преди 9d3e5fd19fe1063bf607219e8562fbd567b8e8d5; cef401de7be8c4e155c6746bfccf721a4fa5fab9 преди 78bf6b6bb19541d19fbda6242e7cfe2c682763c0; cef401de7be8c4e155c6746bfccf721a4fa5fab9 преди 760e1addc27ba1a7beb4a0a7e8b3e9ec49e7a34e; cef401de7be8c4e155c6746bfccf721a4fa5fab9 преди 3bd9e113d50034db99d7ef69fd8e5242d15e414a; cef401de7be8c4e155c6746bfccf721a4fa5fab9 преди 3884358a9286b17f389a72b1426fc4547c23c111; cef401de7be8c4e155c6746bfccf721a4fa5fab9 преди f84eca5817390257cef78013d0112481c503b4a3
  • Linux Linux: 3.9; преди 3.9; 5.10.257 до 5.10.*; 5.15.208 до 5.15.*; 6.1.174 до 6.1.*; 6.6.141 до 6.6.*; 6.12.91 до 6.12.*; 6.18.33 до 6.18.*; 7.0.10 до 7.0.*; от 7.1 нататък
  • Red Hat: още 29 продукта, добавени от Red Hat

    NVIDIA for RHEL 10, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On, Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.6 Telecommunications Update Service, Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions, Red Hat Enterprise Linux 8.8 Telecommunications Update Service, Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions, Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions, Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions, Red Hat Enterprise Linux 9.4 Extended Update Support, Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions, Red Hat Enterprise Linux 9.6 Extended Update Support, Red Hat OpenShift Container Platform 4.12, Red Hat OpenShift Container Platform 4.13, Red Hat OpenShift Container Platform 4.14, Red Hat OpenShift Container Platform 4.15, Red Hat OpenShift Container Platform 4.16, Red Hat OpenShift Container Platform 4.17, Red Hat OpenShift Container Platform 4.18, Red Hat OpenShift Container Platform 4.19, Red Hat OpenShift Container Platform 4.20, Red Hat OpenShift Container Platform 4.21, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7

  • Siemens: още 3 продукта, добавени от Siemens

    SIMATIC S7-1500 CPU 1518-4 PN/DP MFP, SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP, SIPLUS S7-1500 CPU 1518-4 PN/DP MFP

Вид слабост

История

  • 23 май 2026 Публикувано

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