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CVE-2026-90348: Linux

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Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

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    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: wifi: ath10k: snoc: use memcpy_fromio() for MSA ramdump On WCN3990/SNOC the MSA region is mapped with devm_memremap(MEMREMAP_WT). On arm64 such a mapping is not Normal-cacheable, so unaligned accesses to it are not permitted. ath10k_msa_dump_memory() copies the region with a plain memcpy(), whose optimized __pi_memcpy_generic implementation issues wide/unaligned loads. This triggers an alignment fault (FSC=0x21) Oops in ath10k_snoc_fw_crashed_dump() while collecting the devcoredump: Unable to handle kernel paging request ... FSC=0x21: alignment fault pc : __pi_memcpy_generic lr : ath10k_snoc_fw_crashed_dump [ath10k_snoc] The Oops both leaves the firmware RAM dump buffer zeroed (no dump is captured) and crashes the kernel, which in turn breaks modem SSR recovery. Use memcpy_fromio(), which only performs accesses that are valid for such a device-memory mapping. The generic memcpy_fromio() implementation aligns the source before issuing word-sized reads and stores the destination with put_unaligned(), so it is also safe for the coherent DMA allocation used on the non-reserved-memory path. ath11k and ath12k use the same pattern when copying target memory into crash dumps, so call it unconditionally here too. The MEMREMAP_WT pointer is a plain void *, so an explicit __iomem cast is needed; use __force to keep sparse happy. Tested-on: WCN3990 hw1.0 SNOC WLAN.HL.3.3.7.c5-00107-QCAHLSWMTPL-1

    Засегнати продукти

    • Linux Linux: 3f14b73c38431a6a1ed24de568e18ed89b7082e2 преди e5bc3658da9c8a535e3fa5c0c875b2a456954e81; 3f14b73c38431a6a1ed24de568e18ed89b7082e2 преди fed1f662c9f9fd19eeab6c01966b7b5a33804420; 3f14b73c38431a6a1ed24de568e18ed89b7082e2 преди 838cab267ce9a975776e022f25094f8cbe1625d2; 3f14b73c38431a6a1ed24de568e18ed89b7082e2 преди eb946595a58decdb4cab1b5f3c972ae66f41f1c8; 3f14b73c38431a6a1ed24de568e18ed89b7082e2 преди 152e894e90716163c646d70f86b3afeb70442783; 3f14b73c38431a6a1ed24de568e18ed89b7082e2 преди 7039825a7479df637c4f5d546cb0e1cec18cd8e1; 3f14b73c38431a6a1ed24de568e18ed89b7082e2 преди 045d1bfb72d2631ab9ec74afa491aa788ebb57aa; 3f14b73c38431a6a1ed24de568e18ed89b7082e2 преди 4f25071afe9218aaae1c63fbf75e229aa6405319
    • Linux Linux: 5.5; преди 5.5; 5.10.270 до 5.10.*; 5.15.221 до 5.15.*; 6.1.188 до 6.1.*; 6.6.157 до 6.6.*; 6.12.110 до 6.12.*; 6.18.52 до 6.18.*; 7.2.6 до 7.2.*; от 7.3 нататък

    История

    • 17 септември 2026 Публикувано

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    Първоизточници

    CVE-2026-90348: Linux | freedomonline.bg