CVE-2026-74546
- Source
- https://cve.org/CVERecord?id=CVE-2026-74546
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74546.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-74546
- Downstream
- Published
- 2026-08-15T12:27:55Z
- Modified
- 2026-08-21T03:30:25Z
- Summary
- hwmon: (adt7470) Fix divide-by-zero TOCTOU crash in fan speed read
- Details
-
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.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74546.json" }- References
-
- https://git.kernel.org/stable/c/009240d057e26831cc925feaba4c490209c1d0ba
- https://git.kernel.org/stable/c/1b46fe9dc8f8de59310f37e6c5e5c0e05ded46c3
- https://git.kernel.org/stable/c/689a2ea75434131d0af58aeb7d51fde40e858b4d
- https://git.kernel.org/stable/c/76963b04b2d1c648d69949d8dd521e1ff7f40b51
- https://git.kernel.org/stable/c/832069bec79cf6f903441c5769d3cdba95d0af33
- https://git.kernel.org/stable/c/96ad57d31763559d376416cdf3bf5ae79bbbebec
- https://git.kernel.org/stable/c/d328175045176f85c15c369bd21dc551351e7935
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74546.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-74546
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedfc958a61ff6d34a0ec42744d3ff524ee202b2e9fFixed689a2ea75434131d0af58aeb7d51fde40e858b4dFixed009240d057e26831cc925feaba4c490209c1d0baFixedd328175045176f85c15c369bd21dc551351e7935Fixed832069bec79cf6f903441c5769d3cdba95d0af33Fixed96ad57d31763559d376416cdf3bf5ae79bbbebecFixed76963b04b2d1c648d69949d8dd521e1ff7f40b51Fixed1b46fe9dc8f8de59310f37e6c5e5c0e05ded46c3
Linux / Kernel
Package
- Name
- Kernel
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced5.15.0Fixed5.15.216
- Type
- ECOSYSTEM
- Events
-
Introduced5.16.0Fixed6.1.183
- Type
- ECOSYSTEM
- Events
-
Introduced6.2.0Fixed6.6.151
- Type
- ECOSYSTEM
- Events
-
Introduced6.7.0Fixed6.12.103
- Type
- ECOSYSTEM
- Events
-
Introduced6.13.0Fixed6.18.44
- Type
- ECOSYSTEM
- Events
-
Introduced6.19.0Fixed7.1.8