Към съдържанието
Търсене

CVE-2026-98262: Linux

Няма оценка

CVSS

Няма данни

Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

Няма потвърждение

Атакува се

Няма данни

Време до експлоатация

    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: ata: libahci: clear PxCLBU and PxFBU for AHCI_HFLAG_32BIT_ONLY A user reported that commit 105c42566a55 ("ata: ahci: force 32-bit DMA for JMicron JMB582/JMB585") made the JMicron JMB585 unusable on his board. The failure is seen as soon as the ahci driver is probed, and booting with iommu=off does not solve the problem. Looking at the AHCI specification, PxCLBU and PxFBU are both read only '0' for HBAs that do not support 64-bit addressing. For HBAs that do support 64-bit addressing, the registers are read write, with a reset value that is Implementation Specific. When using the AHCI_HFLAG_32BIT_ONLY flag, the HBA does support 64-bit addressing, and a 32-bit DMA mask is set by simply clearing HOST_CAP_64. Thus, in this case, we need to explicitly clear the registers to 0.

    Засегнати продукти

    • Linux Linux: c7a42156d99bcea7f8173ba7a6034bbaa2ecb77c преди 0191c9ff23ef1678dbfb5ad253a2dee92feb5d71; c7a42156d99bcea7f8173ba7a6034bbaa2ecb77c преди 8f510f68208a1f673d7c7234a687be4671490e9c; c7a42156d99bcea7f8173ba7a6034bbaa2ecb77c преди 4719424bb7cb9f20b73986bcb72dd528f0e5c6eb; c7a42156d99bcea7f8173ba7a6034bbaa2ecb77c преди a5a8b4737f68bbac8aa0685af0c8921e6003c22b; c7a42156d99bcea7f8173ba7a6034bbaa2ecb77c преди b28a17d4a9bb0aa38b48681c3927b012ba40eabe; c7a42156d99bcea7f8173ba7a6034bbaa2ecb77c преди b691a3e244278362e552439d6d3ee5a5d3703488; c7a42156d99bcea7f8173ba7a6034bbaa2ecb77c преди 7912ad8fb5233bb8cfe21d50df639c7f4854ff9d; c7a42156d99bcea7f8173ba7a6034bbaa2ecb77c преди 82e47533221d4746947b74d2e79a478c36c6433a
    • Linux Linux: 2.6.22; преди 2.6.22; 5.10.271 до 5.10.*; 5.15.222 до 5.15.*; 6.1.189 до 6.1.*; 6.6.158 до 6.6.*; 6.12.112 до 6.12.*; 6.18.54 до 6.18.*; 7.2.8 до 7.2.*; от 7.3 нататък

    История

    • 6 октомври 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-98262: Linux | freedomonline.bg