CVE-2026-74546: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: hwmon: (adt7470) Fix divide-by-zero TOCTOU crash in fan speed read If the fan data becomes 0 between the FAN_DATA_VALID() check and the FAN_PERIOD_TO_RPM() conversion, it will result in a divide-by-zero crash due to a race with a concurrent update of the cached fan value. Fix a TOCTOU issue by reading fan data once.

Засегнати продукти

• Linux Linux: fc958a61ff6d34a0ec42744d3ff524ee202b2e9f преди 689a2ea75434131d0af58aeb7d51fde40e858b4d; fc958a61ff6d34a0ec42744d3ff524ee202b2e9f преди 009240d057e26831cc925feaba4c490209c1d0ba; fc958a61ff6d34a0ec42744d3ff524ee202b2e9f преди d328175045176f85c15c369bd21dc551351e7935; fc958a61ff6d34a0ec42744d3ff524ee202b2e9f преди 832069bec79cf6f903441c5769d3cdba95d0af33; fc958a61ff6d34a0ec42744d3ff524ee202b2e9f преди 96ad57d31763559d376416cdf3bf5ae79bbbebec; fc958a61ff6d34a0ec42744d3ff524ee202b2e9f преди 76963b04b2d1c648d69949d8dd521e1ff7f40b51; fc958a61ff6d34a0ec42744d3ff524ee202b2e9f преди 1b46fe9dc8f8de59310f37e6c5e5c0e05ded46c3
• Linux Linux: 5.15; преди 5.15; 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

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99265
• CVE-2026-99261
• CVE-2026-99260

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-74546
• https://nvd.nist.gov/vuln/detail/CVE-2026-74546
• https://git.kernel.org/stable/c/689a2ea75434131d0af58aeb7d51fde40e858b4d
• https://git.kernel.org/stable/c/009240d057e26831cc925feaba4c490209c1d0ba
• https://git.kernel.org/stable/c/d328175045176f85c15c369bd21dc551351e7935
• https://git.kernel.org/stable/c/832069bec79cf6f903441c5769d3cdba95d0af33
• https://git.kernel.org/stable/c/96ad57d31763559d376416cdf3bf5ae79bbbebec
• https://git.kernel.org/stable/c/76963b04b2d1c648d69949d8dd521e1ff7f40b51
• https://git.kernel.org/stable/c/1b46fe9dc8f8de59310f37e6c5e5c0e05ded46c3