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CVE-2026-90284: 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: firmware_loader: do not queue completed sysfs fallback requests fw_load_sysfs_fallback() calls device_add() before adding the fw_priv to pending_fw_head. device_add() publishes the fallback loading interface, so a userspace helper which discovers the device by scanning sysfs can write 0 to the loading attribute and complete the request before it is queued as pending. In that interleaving firmware_loading_store() calls fw_state_done() while pending_list still points to itself, so it cannot remove an entry from pending_fw_head. The subsequent unconditional list_add() then queues an already-completed fw_priv. Once the request is released, pending_fw_head can retain a pointer to freed memory and the next fallback request can fault while validating the list. Only in-flight fallback requests need suspend or reboot abort handling. If the request is already DONE after device_add(), return success from the fallback path without sending another uevent, waiting again, or queueing it as pending. This preserves the invariant that pending_fw_head contains only active fallback requests.

    Засегнати продукти

    • Linux Linux: ecb739cf15a9bae040ce6b60209b78b92512d120 преди c8b97c5130f27b64fa2cfe1aa4bebb13f724c6c7; 75d95e2e39b27f733f21e6668af1c9893a97de5e преди 93a2385730540105df8524447dcc11309ad280f9; 75d95e2e39b27f733f21e6668af1c9893a97de5e преди ea33fac0df7fe7b49a4b27acb83e227b82317d1d; 75d95e2e39b27f733f21e6668af1c9893a97de5e преди 5a250bff75a446374c05622973b18b4ab662b504; 75d95e2e39b27f733f21e6668af1c9893a97de5e преди 85aeb8fc61839098ae0942ccba86e669c08e75d4; 75d95e2e39b27f733f21e6668af1c9893a97de5e преди 6eaa632d0ed7bbb84f9cb670e5ec4e2cecf4cc7b; 75d95e2e39b27f733f21e6668af1c9893a97de5e преди fb4824880b0dba0e7b3a497c46c642f979630392; 75d95e2e39b27f733f21e6668af1c9893a97de5e преди b48373c901951fad1a26bd7c33ad91172b3945b5; 67cf0fbcac0d42d4d4686cddc1e39f465bbfec37; d09639528b66b5c7c20dc8f7fb8928aacabd40bb; c14a54675db7131791402fa22fb0fa6da1f5fb66; 5.10.58 преди 5.10.270; 4.19.203 преди 4.20; 5.4.140 преди 5.5; 5.13.10 преди 5.14
    • Linux Linux: 5.14; преди 5.14; 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

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-90284: Linux | freedomonline.bg