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CVE-2026-81016: Linux

7.7

CVSS 3.1

Няма данни

Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

Няма потвърждение

Атакува се

Няма данни

Време до експлоатация

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

    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: platform/x86/amd/pmc: Propagate SMU errors and validate S2D address amd_stb_s2d_init() discards the return value of several S2D SMU commands. When the SMU refuses a command (e.g. "SMU cmd failed. err: 0xff") the failure is only noticed indirectly - if at all - and reported as -EIO, masking the real error. More seriously, the S2D_PHYS_ADDR_LOW/HIGH return values are ignored, so on failure phys_addr_low/hi are left uninitialised and the assembled address is passed straight to devm_ioremap(). When the SMU leaves them at zero this maps physical address 0 and trips the ioremap-on-RAM warning: amd_pmc AMDI000B:00: SMU cmd failed. err: 0xff ioremap on RAM at 0x0000000000000000 - 0x0000000000ffffff WARNING: CPU: 13 PID: 4592 at arch/x86/mm/ioremap.c:... Check the return value of each SMU command and propagate it, and reject a zero physical address before calling devm_ioremap().

    Засегнати продукти

    • Linux Linux: 3d7d407dfb05b257e15cb0c6b056428a4a8c2e5d преди 646cdcc6c7594d8ad81577b2cb05276a927edc28; 3d7d407dfb05b257e15cb0c6b056428a4a8c2e5d преди 85ef9d4c384c1d143c51580933674d94dba3b8d9; 3d7d407dfb05b257e15cb0c6b056428a4a8c2e5d преди 638e1ca5d4e2b4fdbb209db64926d013b34f3b79; 3d7d407dfb05b257e15cb0c6b056428a4a8c2e5d преди 8178f59d76570b152d836bde07f5997f15861f04; 3d7d407dfb05b257e15cb0c6b056428a4a8c2e5d преди 775d4cde1f9737796ce7d8393521e9e8c5b49891; 3d7d407dfb05b257e15cb0c6b056428a4a8c2e5d преди 0225c1d637687b03726f00ac65b6def843d2c464
    • Linux Linux: 5.18; преди 5.18; 6.1.191 до 6.1.*; 6.6.160 до 6.6.*; 6.12.112 до 6.12.*; 6.18.50 до 6.18.*; 7.2.4 до 7.2.*; 7.3 до *

    История

    • 11 септември 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-81016: Linux | freedomonline.bg