CVE-2026-97582hwmon: (gpio-fan) Fix use-after-free in alarm work
- —Not scoredno CVSS score yet
- 0.21%Exploitation in 30 daysEPSS · top 89% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: hwmon: (gpio-fan) Fix use-after-free in alarm work fan_alarm_irq_handler() queues fan_data->alarm_work, but nothing cancels it. fan_alarm_notify() dereferences fan_data and its hwmon device. On unbind, devres frees the interrupt, which only waits for the handler itself, and then releases the hwmon device and fan_data, so a pending fan_alarm_notify() can run after those frees. Replace INIT_WORK() with devm_work_autocancel(), registered before devm_request_irq(). The devres cleanup then frees the interrupt first, so no new work can be queued, and cancels the work while fan_data and the hwmon device are still alive. This issue was found by an in-house static analysis tool.
Timeline
ID reserved
By Linux
- 1 day later
· 1 day later
Published
- 35 days later
· 35 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- 0.21% · top 89% of all CVEs (14 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected d6fe1360f42e86262153927986dea6502daff703 – < 7f96803f612134f585ab3b39e6d5b2d4b9c0606f
- affected d6fe1360f42e86262153927986dea6502daff703 – < 594c62eea7c82f526054496e9fa9b895122a8016
- affected d6fe1360f42e86262153927986dea6502daff703 – < 6e67d9bdac810edacef78cbaeedd34445aa8ceb7
- affected d6fe1360f42e86262153927986dea6502daff703 – < e9fc7d53b2eb34c0a607d1659f49b46911aaf16c
- affected d6fe1360f42e86262153927986dea6502daff703 – < 9b12bd724db9db318e3a68be17693583dc29a066
- affected d6fe1360f42e86262153927986dea6502daff703 – < 30755d3a5782cd704c8921cac8ee66dffe4383ea
- affected d6fe1360f42e86262153927986dea6502daff703 – < c6ab7f855891877a16d2e2ddf0cd0305fd098a85
- affected d6fe1360f42e86262153927986dea6502daff703 – < a2471ed17b0e6ff7bfb6b2ea8e6e5b04c309d293
- affected 2.6.37
- unaffected < 2.6.37
- unaffected 5.10.273 – ≤ 5.10.*
- unaffected 5.15.222 – ≤ 5.15.*
- unaffected 6.1.189 – ≤ 6.1.*
- unaffected 6.6.158 – ≤ 6.6.*
- unaffected 6.12.111 – ≤ 6.12.*
- unaffected 6.18.53 – ≤ 6.18.*
- unaffected 7.2.7 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References8
- https://git.kernel.org/stable/c/7f96803f612134f585ab3b39e6d5b2d4b9c0606f (opens in a new tab)
- https://git.kernel.org/stable/c/594c62eea7c82f526054496e9fa9b895122a8016 (opens in a new tab)
- https://git.kernel.org/stable/c/6e67d9bdac810edacef78cbaeedd34445aa8ceb7 (opens in a new tab)
- https://git.kernel.org/stable/c/e9fc7d53b2eb34c0a607d1659f49b46911aaf16c (opens in a new tab)
- https://git.kernel.org/stable/c/9b12bd724db9db318e3a68be17693583dc29a066 (opens in a new tab)
- https://git.kernel.org/stable/c/30755d3a5782cd704c8921cac8ee66dffe4383ea (opens in a new tab)
- https://git.kernel.org/stable/c/c6ab7f855891877a16d2e2ddf0cd0305fd098a85 (opens in a new tab)
- https://git.kernel.org/stable/c/a2471ed17b0e6ff7bfb6b2ea8e6e5b04c309d293 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-86890 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-97582)Record last updated .