Answer in brief
CVE-2026-98197 records a Unknown severity vulnerability in hwmon: (w83791d) remove fan/pwm 4-5 sysfs group on remove. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=6e1ecd9b8f1358ed4d099f0c54434240dc40debe <081e3a78453635fb370b1712809d2af29e60b4c5 || >=6e1ecd9b8f1358ed4d099f0c54434240dc40debe <b1d419eb3bc41245c3d3d99dfe1a7b6c45989586 || >=6e1ecd9b8f1358ed4d099f0c54434240dc40debe <2ccf6c512290a288a2d4d7f076430dfb0c6ee476 || >=6e1ecd9b8f1358ed4d099f0c54434240dc40debe <f6e2ab72f32d16d71a2549c7ea062dd209f71670 || >=6e1ecd9b8f1358ed4d099f0c54434240dc40debe <2dd37d00f1f1af8e02ffa70ee573c10fd1a76864 || >=6e1ecd9b8f1358ed4d099f0c54434240dc40debe <2c381e6e0f033f2df13bd64905e7232c42f49009 || >=6e1ecd9b8f1358ed4d099f0c54434240dc40debe <583e04e88e75b8d57304015d83c38e82a9531600 || >=6e1ecd9b8f1358ed4d099f0c54434240dc40debe <0ff9c7775e51ac6d47b1bb5c46f06b1434fe58a8 | 081e3a78453635fb370b1712809d2af29e60b4c5, b1d419eb3bc41245c3d3d99dfe1a7b6c45989586, 2ccf6c512290a288a2d4d7f076430dfb0c6ee476, f6e2ab72f32d16d71a2549c7ea062dd209f71670, 2dd37d00f1f1af8e02ffa70ee573c10fd1a76864, 2c381e6e0f033f2df13bd64905e7232c42f49009, 583e04e88e75b8d57304015d83c38e82a9531600, 0ff9c7775e51ac6d47b1bb5c46f06b1434fe58a8 |
| Linux/Linuxgeneric | 2.6.28 | Not reported |
Published upstream
Oct 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 6, 2026
In the Linux kernel, the following vulnerability has been resolved: hwmon: (w83791d) remove fan/pwm 4-5 sysfs group on remove When the fan/pwm 4-5 pins are not used as GPIO, w83791d_probe() creates the w83791d_group_fanpwm45 sysfs group on the I2C client device. The probe error path removes this group when a later initialization step fails, but the normal remove path only removes w83791d_group. As a result, the optional fan/pwm 4-5 sysfs files can remain after the driver is unbound. The callbacks associated with these files access the driver data, which is devm allocated and released after driver unbind. Leaving the sysfs files behind can therefore result in accesses to stale driver data. Remove w83791d_group_fanpwm45 during normal teardown as well. This issue was found by manual code inspection.
Quoted source text, attributed separately from HOL analysis.