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CVE-2026-89765: Linux

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CVSS

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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: timers/itimer: Zero-init old itimerval before copy to userspace On native sparc64, struct __kernel_old_timeval contains a four-byte hole after tv_usec because tv_sec is 64-bit while __kernel_suseconds_t is 32-bit. put_itimerval() fills only the named fields in a stack-allocated __kernel_old_itimerval and copies the entire object to userspace, so getitimer() can expose the two padding holes. Zero-initialize the aggregate before assigning the fields so implicit padding is deterministic before it crosses the user/kernel boundary.

    Засегнати продукти

    • Linux Linux: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди 6d4b937251386d9c6f968e7802f0cb16a8523772; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди 4ea70146ab9376092297eb8b622ef1792797f2cf; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди a17b345daff46fec4af9f1ecbdf350208016dd15; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди bdfda99c5763822a9a888e8af0ad7d9312ffcfe2; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди 4c66719dd1e4023c5e3f7d050f1bbefec3dfbeb4; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди 2bf5e8f7c9bf4ad3be343a9a6e3e50a34264d25e; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди 00ef529a5402f41eb1d227916437e237450719f9; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди 18c7d85864e554adc8fad1e8d2e9d2cb6c3911c8
    • Linux Linux: 2.6.12; преди 2.6.12; 5.10.270 до 5.10.*; 5.15.221 до 5.15.*; 6.1.188 до 6.1.*; 6.6.157 до 6.6.*; 6.12.109 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-2026-89765: Linux | freedomonline.bg