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CVE-2026-98197: linux

CVSS: 7.0v3.1HighReceived
AliasesUBUNTU-CVE-2026-98197DEBIAN-CVE-2026-98197
Published 06-10-2026Last modified 19-10-2026
Open JSON

Vulnerability summary

CVE-2026-98197 is a high (CVSS 7.0) vulnerability in linux. EPSS estimates a 0.12% chance of exploitation in the next 30 days, higher than 1.8% of scored vulnerabilities.

Overall risk
28/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.0/10
010
High · v3.1 (CVE.org)
EPSS score
0.12%
0%100%
Low · Change unavailable
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1 · Related 1
OPENSUSE-SU-2026:12131-1

Timeline

  1. 06-10-2026
    PublishedVulnerability first disclosed.
  2. 19-10-2026
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.12%

Chance of exploitation in the next 30 days

Percentile

2%

Versus all other CVEs

30-day change

Change unavailable

Change unavailable

06-10-202621-10-2026
EPSS score
0.12%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu169 products
  • linuxAll versions (No fix recorded)
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linuxAll versions (No fix recorded) | < 6.1.190-1 | < 6.12.113-1 | < 7.2.8-1
Linux1 product
  • linux≥ 6e1ecd9b8f1358ed4d099f0c54434240dc40debe, < 081e3a78453635fb370b1712809d2af29e60b4c5 | ≥ 6e1ecd9b8f1358ed4d099f0c54434240dc40debe, < b1d419eb3bc41245c3d3d99dfe1a7b6c45989586 | ≥ 6e1ecd9b8f1358ed4d099f0c54434240dc40debe, < 2ccf6c512290a288a2d4d7f076430dfb0c6ee476 | ≥ 6e1ecd9b8f1358ed4d099f0c54434240dc40debe, < f6e2ab72f32d16d71a2549c7ea062dd209f71670 | ≥ 6e1ecd9b8f1358ed4d099f0c54434240dc40debe, < 2dd37d00f1f1af8e02ffa70ee573c10fd1a76864 | ≥ 6e1ecd9b8f1358ed4d099f0c54434240dc40debe, < 2c381e6e0f033f2df13bd64905e7232c42f49009 | ≥ 6e1ecd9b8f1358ed4d099f0c54434240dc40debe, < 583e04e88e75b8d57304015d83c38e82a9531600 | ≥ 6e1ecd9b8f1358ed4d099f0c54434240dc40debe, < 0ff9c7775e51ac6d47b1bb5c46f06b1434fe58a8 | 2.6.28

3 vendors · 171 products

References

12 links
Show all 12 references