GHSA-5VF6-9CV6-XWCM
Vulnerability from github – Published: 2026-10-18 18:31 – Updated: 2026-10-30 15:33In the Linux kernel, the following vulnerability has been resolved:
iio: light: gp2ap020a00f: drain irq_work after free_irq
The threaded IRQ handler queues data->work through irq_work_queue() so the trigger is polled from a per-CPU context. free_irq() does not flush an irq_work the handler already queued, so after gp2ap020a00f_remove() returns that work may still run and call iio_trigger_poll() on data->trig, which the devm cleanup has already freed, causing a use-after-free.
Add irq_work_sync(&data->work) after free_irq() in remove() and in the probe error path, mirroring commit 78601726d4a5 ("iio: trigger: sysfs: fix use-after-free on remove").
Found by an in-house static analysis tool, confirmed by manual review.
{
"affected": [],
"aliases": [
"CVE-2026-98662"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-10-18T16:17:19Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: light: gp2ap020a00f: drain irq_work after free_irq\n\nThe threaded IRQ handler queues data-\u003ework through irq_work_queue() so\nthe trigger is polled from a per-CPU context. free_irq() does not flush\nan irq_work the handler already queued, so after gp2ap020a00f_remove()\nreturns that work may still run and call iio_trigger_poll() on data-\u003etrig,\nwhich the devm cleanup has already freed, causing a use-after-free.\n\nAdd irq_work_sync(\u0026data-\u003ework) after free_irq() in remove() and in the\nprobe error path, mirroring commit 78601726d4a5 (\"iio: trigger: sysfs:\nfix use-after-free on remove\").\n\nFound by an in-house static analysis tool, confirmed by manual review.",
"id": "GHSA-5vf6-9cv6-xwcm",
"modified": "2026-10-30T15:33:54Z",
"published": "2026-10-18T18:31:58Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98662"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/43fbbb9eaae5d6f45668e3c4d45508c498d6ba9c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/63213927b141085b6c8719b8037dab3074b7e0fe"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/6f2bb000493c3b4f5715b3103657393672aea05b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/85c20d1cf3f01a506605a16c2f9ce23b9c8b114f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a1769877ff52a4f1bfb9ca535d1b5113808bd602"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a36814b9fe00970116d30c3143d81e7425c4d334"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/cc71400bc965c0d3894a38ead3d71243400c2d5e"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d029639b079b28a5334f934c848d895bef0653d1"
}
],
"schema_version": "1.4.0",
"severity": []
}
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