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CVE-2026-93053: 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: speakup: keyhelp: guard letter_offsets possible out-of-range indexing help_init() builds letter_offsets[] by using the first byte of each function name as an index via `(start & 31) - 1`. If function_names are overridden from sysfs (root) with a name starting outside [a–z], the index underflows or exceeds the array, leading to OOB write. Function names can be overridden with the following commands as root: modprobe speakup_soft echo "0 _bad" > /sys/accessibility/speakup/i18n/function_names # then press Insert+2 on /dev/tty This fix checks the first letter in help_init(), and if it is not in the [a–z] range the function returns an error to the caller. Eventually this error is propagated to drivers/accessibility/speakup/main.c:2217, which causes a bleep sound.

    Засегнати продукти

    • Linux Linux: c6e3fd22cd538365bfeb82997d5b89562e077d42 преди fd339b9ef0accb2c24a5285df842552ebf5eb146; c6e3fd22cd538365bfeb82997d5b89562e077d42 преди 900cd6e5ef46bd15153762fb26bb03f874fccc52; c6e3fd22cd538365bfeb82997d5b89562e077d42 преди 6b39969c724d39b6062efa354dc2d38442bfd021; c6e3fd22cd538365bfeb82997d5b89562e077d42 преди 2e91ab73f9beb659f581e2a6a09f79ace1140905; c6e3fd22cd538365bfeb82997d5b89562e077d42 преди d7deb90c4cd086cb111f0ecc9da021218fbde1b0; c6e3fd22cd538365bfeb82997d5b89562e077d42 преди 5310334762c3f08f51dc2414344dd47492c07d1d; c6e3fd22cd538365bfeb82997d5b89562e077d42 преди ca4489b3e54666a7cac7294e71a3cf64e5e95286; c6e3fd22cd538365bfeb82997d5b89562e077d42 преди 6a19ad4d68c95185308cd9e5d169b10a2cf236c8
    • Linux Linux: 2.6.37; преди 2.6.37; 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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    CVE-2026-93053: Linux | freedomonline.bg