iio: trigger: sysfs: fix use-after-free on remove

{
  "id": "d82fa1db98e945a5f44ee27af413bc0a3a51cd0000341b0cb0bebe274f5ea526",
  "url": "https://osv.dev/vulnerability/CVE-2022-49685",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "iio: trigger: sysfs: fix use-after-free on remove",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: iio: trigger: sysfs: fix use-after-free on remove Ensure that the irq_work has completed before the trigger is freed. ================================================================== BUG: KASAN: use-after-free in irq_work_run_list Read of size 8 at addr 0000000064702248 by task python3/25 Call Trace: irq_work_run_list irq_work_tick update_process_times tick_sched_handle tick_sched_timer __hrtimer_run_queues hrtimer_interrupt Allocated by task 25: kmem_cache_alloc_trace iio_sysfs_trig_add dev_attr_store sysfs_kf_write kernfs_fop_write_iter new_sync_write vfs_write ksys_write sys_write Freed by task 25: kfree iio_sysfs_trig_remove dev_attr_store sysfs_kf_write kernfs_fop_write_iter new_sync_write vfs_write ksys_write sys_write ==================================================================",
    "evidence": "osv:CVE-2022-49685",
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    "severity": "high",
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      "modified": "2026-10-28T02:30:45.612325364Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/31ff3309b47d98313c61b8301bf595820cc3cc33",
        "https://git.kernel.org/stable/c/4687c3f955240ca2a576bdc3f742d4d915b6272d",
        "https://git.kernel.org/stable/c/4ef1e521be610b720daeb7cf899fedc7db0274c4",
        "https://git.kernel.org/stable/c/5e39397d60dacc7f5d81d442c1c958eaaaf31128",
        "https://git.kernel.org/stable/c/78601726d4a59a291acc5a52da1d3a0a6831e4e8",
        "https://git.kernel.org/stable/c/b07a30a774b3c3e584a68dc91779c68ea2da4813",
        "https://git.kernel.org/stable/c/d6111e7bdb8ec27eb43d01c4cd4ff1620a75f7f2",
        "https://git.kernel.org/stable/c/fd5d8fb298a2866c337da635c79d63c3afabcaf7",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49685.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-49685",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
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    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
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  "source_id": "core-osv",
  "document_id": 513567,
  "published_at": "2025-02-26T02:24:12.143+00:00"
}