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CVE-2026-74547: 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: hwmon: (adt7470) Fix busy-loop and I2C flooding in update thread When userspace configures 'auto_update_interval' to 0 via sysfs, the background kthread executes schedule_timeout_interruptible(0), which returns immediately. If 'num_temp_sensors' is concurrently or previously set to 0, the msleep_interruptible() delay inside adt7470_read_temperatures() also becomes 0. This combination forces the background thread into a tight, unbounded busy-loop, hogging the CPU and flooding the I2C bus with a continuous stream of transactions. Fix this vulnerability by raising the lower limit of the clamp_val in auto_update_interval_store() from 0 to 500 milliseconds. This guarantees a reasonable minimum sleep window between sensor updates, protecting the system from intentional or accidental I2C bus denial of service.

    Засегнати продукти

    • Linux Linux: 89fac11cb3e7c5860c425dba14845c09ccede39d преди 2c4c4d7cadd10b50b5489183bbbb9eb95f6f8344; 89fac11cb3e7c5860c425dba14845c09ccede39d преди 4dc1518f9cc57c6db99514cafeb02dd7117d5bda; 89fac11cb3e7c5860c425dba14845c09ccede39d преди 1325975a2eab265510e6036d8bf0c0068373d332; 89fac11cb3e7c5860c425dba14845c09ccede39d преди 1a42bd72a66205e439db1d1142442b62d393408a; 89fac11cb3e7c5860c425dba14845c09ccede39d преди 38e6b5ce5794ff09442231cc171c2be5e900bab3; 89fac11cb3e7c5860c425dba14845c09ccede39d преди 82d65f7ef11edcea0228745440b8b4b1f222c34c; 89fac11cb3e7c5860c425dba14845c09ccede39d преди 5ea299c3aa42a827f6a863eeead6de3525bbb17a; 89fac11cb3e7c5860c425dba14845c09ccede39d преди cb0b7f9c43b0abbd422a7e4c2c85e91db429207c
    • Linux Linux: 2.6.29; преди 2.6.29; 5.10.265 до 5.10.*; 5.15.216 до 5.15.*; 6.1.183 до 6.1.*; 6.6.151 до 6.6.*; 6.12.103 до 6.12.*; 6.18.44 до 6.18.*; 7.1.8 до 7.1.*; от 7.2 нататък

    История

    • 15 август 2026 Публикувано

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    Първоизточници

    CVE-2026-74547: Linux | freedomonline.bg