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CVE-2026-89440: Linux

7.8

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, с обикновен потребителски вход и без действие от потребителя.

    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: mmc: via-sdmmc: stop card-detect handling on probe failure request_irq() registers the SD card-detect interrupt and the probe enables it before mmc_add_host() runs. If mmc_add_host() fails, the error path only unmaps the registers and returns: the interrupt stays registered, so the handler keeps running against the host once it is freed. via_sdc_isr() dereferences sdhost and its MMIO base and schedules carddet_work, which via_sdc_card_detect() also runs against freed memory through its container_of() dereference. Add a probe-error path that disables and frees the interrupt and cancels carddet_work before unmapping. carddet_work can re-enable the device interrupt via via_reset_pcictrl(), which restores PCIINTCTRL, so mask it again after cancelling the work. This issue was found by an in-house static analysis tool and confirmed by manual code review.

    Засегнати продукти

    • Linux Linux: 63400da6cd37a9793c19bb6aed7131b58b975a04 преди 5bb5327b92aae17e91c7228953c350a6ee3c94e8; 0959cc1685eb19774300d43ef25e318b457b156b преди d045596706d1b25d38af4a79980b017639fea9d1; ba91b413983a9235792523c6b9f7ba2586c4d75d преди 806409f12fdb14c9e4c56a64494c9b75f356cd49; e4e46fb61e3bb4628170810d3f2b996b709b90d9 преди dde5b9c91e9fc64e54a2f186d3ae95868b4dbb02; e4e46fb61e3bb4628170810d3f2b996b709b90d9 преди efe7f25dd27e35063477b4b0e7eed3675669fd99; e4e46fb61e3bb4628170810d3f2b996b709b90d9 преди 2550f89589caad7402d618d7dffc038582c94b6b; e4e46fb61e3bb4628170810d3f2b996b709b90d9 преди c2b8a624911999399cc14822fec3e35032b3cee4; e4e46fb61e3bb4628170810d3f2b996b709b90d9 преди 088eaa92fcebaa6b957ccf9635afdf39643a577d; 076bcd2c93e16b05c10564e299d6e5d26a766d00; 12b8e81b77c05c658efd9cde3585bbd65ae39b59; 95025a8dd0ec015872f6c16473fe04d6264e68ca; f59ef2a47a228e51322ad76752a55a8917c56e38; 0ec94795114edc7e24ec71849dce42bfa61dafa3; 5.10.163 преди 5.10.270; 5.15.86 преди 5.15.221; 6.1.2 преди 6.1.188; 4.9.337 преди 4.10; 4.14.303 преди 4.15; 4.19.270 преди 4.20; 5.4.229 преди 5.5; 6.0.16 преди 6.1
    • Linux Linux: 6.2; преди 6.2; 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.*; от 7.3 нататък

    История

    • 11 септември 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-89440: Linux | freedomonline.bg