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CVE-2026-43277: Linux

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CVSS

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Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

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Време до експлоатация

    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: APEI/GHES: ensure that won't go past CPER allocated record The logic at ghes_new() prevents allocating too large records, by checking if they're bigger than GHES_ESTATUS_MAX_SIZE (currently, 64KB). Yet, the allocation is done with the actual number of pages from the CPER bios table location, which can be smaller. Yet, a bad firmware could send data with a different size, which might be bigger than the allocated memory, causing an OOPS: Unable to handle kernel paging request at virtual address fff00000f9b40000 Mem abort info: ESR = 0x0000000096000007 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x07: level 3 translation fault Data abort info: ISV = 0, ISS = 0x00000007, ISS2 = 0x00000000 CM = 0, WnR = 0, TnD = 0, TagAccess = 0 GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 swapper pgtable: 4k pages, 52-bit VAs, pgdp=000000008ba16000 [fff00000f9b40000] pgd=180000013ffff403, p4d=180000013fffe403, pud=180000013f85b403, pmd=180000013f68d403, pte=0000000000000000 Internal error: Oops: 0000000096000007 [#1] SMP Modules linked in: CPU: 0 UID: 0 PID: 303 Comm: kworker/0:1 Not tainted 6.19.0-rc1-00002-gda407d200220 #34 PREEMPT Hardware name: QEMU QEMU Virtual Machine, BIOS unknown 02/02/2022 Workqueue: kacpi_notify acpi_os_execute_deferred pstate: 214020c5 (nzCv daIF +PAN -UAO -TCO +DIT -SSBS BTYPE=--) pc : hex_dump_to_buffer+0x30c/0x4a0 lr : hex_dump_to_buffer+0x328/0x4a0 sp : ffff800080e13880 x29: ffff800080e13880 x28: ffffac9aba86f6a8 x27: 0000000000000083 x26: fff00000f9b3fffc x25: 0000000000000004 x24: 0000000000000004 x23: ffff800080e13905 x22: 0000000000000010 x21: 0000000000000083 x20: 0000000000000001 x19: 0000000000000008 x18: 0000000000000010 x17: 0000000000000001 x16: 00000007c7f20fec x15: 0000000000000020 x14: 0000000000000008 x13:

    Засегнати продукти

    • Linux Linux: d334a49113a4a33109fd24e46073280ecd1bea0d преди 92ba79074c58e65a6e32713758c5a9aecd33c2ea; d334a49113a4a33109fd24e46073280ecd1bea0d преди 616c120dcdf1ce96edcd818e38bce49667f80689; d334a49113a4a33109fd24e46073280ecd1bea0d преди f3740a1562445f36f08afab8af59e37117b3acdc; d334a49113a4a33109fd24e46073280ecd1bea0d преди e0ec99115e135dbb58e11a0df007c7d4771d4a17; d334a49113a4a33109fd24e46073280ecd1bea0d преди b6be51a12441136fdf8c49b2525689fbea1856e1; d334a49113a4a33109fd24e46073280ecd1bea0d преди 6f5d41984ad896736c23e2fff7c80e15c1319132; d334a49113a4a33109fd24e46073280ecd1bea0d преди 98bd9b28d4d11e6739ad86524b4be4ada9025e60; d334a49113a4a33109fd24e46073280ecd1bea0d преди fa2408a24f8f0db14d9cfc613ef162dc267d7ad4
    • Linux Linux: 2.6.35; преди 2.6.35; 5.10.252 до 5.10.*; 5.15.202 до 5.15.*; 6.1.165 до 6.1.*; 6.6.128 до 6.6.*; 6.12.75 до 6.12.*; 6.18.16 до 6.18.*; 6.19.6 до 6.19.*; 7.0 до *

    История

    • 6 май 2026 Публикувано

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    Първоизточници

    CVE-2026-43277: Linux | freedomonline.bg