VulnerabilityPublished 25 Sep 2026Updated 30 Oct 2026

CVE-2026-97582: Linux kernel · hwmon: (gpio-fan) Fix use-after-free in alarm work

Source GCVE Database

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Authoritative record:CVE-2026-97582· Medium

Not known to be exploited · fixed in e9fc7d53b2eb34c0a607d1659f49b46911aaf16c : update Linux kernel when convenient.

Data as of 30 Oct 2026, 17:33 UTC

Severity

Medium

Rated Medium by Threat Radar's AI analysis · CVSS not yet scored by NVD

Thin evidence

One scorer or none

Patch: Available – fixed in e9fc7d53b2eb34c0a607d1659f49b46911aaf16c, c6ab7f855891877a16d2e2ddf0cd0305fd098a85, a2471ed17b0e6ff7bfb6b2ea8e6e5b04c309d293 +5

Exploitation evidence

Disclosed: evidence found.
CVE published 25 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

ghsa-g5h6-rr2f-33x7

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ d6fe1360f42e86262153927986dea6502daff703, < e9fc7d53b2eb34c0a607d1659f49b46911aaf16c	Fixed in e9fc7d53b2eb34c0a607d1659f49b46911aaf16c
LinuxLinux	Affected ≥ d6fe1360f42e86262153927986dea6502daff703, < c6ab7f855891877a16d2e2ddf0cd0305fd098a85	Fixed in c6ab7f855891877a16d2e2ddf0cd0305fd098a85
LinuxLinux	Affected ≥ d6fe1360f42e86262153927986dea6502daff703, < a2471ed17b0e6ff7bfb6b2ea8e6e5b04c309d293	Fixed in a2471ed17b0e6ff7bfb6b2ea8e6e5b04c309d293
LinuxLinux	Affected ≥ d6fe1360f42e86262153927986dea6502daff703, < 30755d3a5782cd704c8921cac8ee66dffe4383ea	Fixed in 30755d3a5782cd704c8921cac8ee66dffe4383ea
LinuxLinux	Affected ≥ d6fe1360f42e86262153927986dea6502daff703, < 594c62eea7c82f526054496e9fa9b895122a8016	Fixed in 594c62eea7c82f526054496e9fa9b895122a8016
LinuxLinux	Affected ≥ d6fe1360f42e86262153927986dea6502daff703, < 9b12bd724db9db318e3a68be17693583dc29a066	Fixed in 9b12bd724db9db318e3a68be17693583dc29a066

AI-suggested

A fix has been implemented in the Linux kernel source code that replaces INIT_WORK() with devm_work_autocancel() to properly manage work cancellation and resource cleanup. Users should update to the fixed kernel version once available from their distribution or vendor. No additional mitigation steps are indicated.

Description

A use-after-free vulnerability was identified and fixed in the Linux kernel's hwmon gpio-fan driver. The flaw involved the queuing of alarm work without proper cancellation, leading to potential dereferencing of freed memory after device unbinding. The fix replaces INIT_WORK() with devm_work_autocancel() to ensure proper cleanup and prevent use-after-free conditions.

References

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