CVE-2022-49685 (GCVE-0-2022-49685)
Vulnerability from cvelistv5
Published
2025-02-26 02:24
Modified
2026-05-11 19:04
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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 ==================================================================
References
Impacted products
Vendor Product Version
Linux Linux Version: f38bc926d022ebd67baad6ac7fc22c95fbc6238c
Version: f38bc926d022ebd67baad6ac7fc22c95fbc6238c
Version: f38bc926d022ebd67baad6ac7fc22c95fbc6238c
Version: f38bc926d022ebd67baad6ac7fc22c95fbc6238c
Version: f38bc926d022ebd67baad6ac7fc22c95fbc6238c
Version: f38bc926d022ebd67baad6ac7fc22c95fbc6238c
Version: f38bc926d022ebd67baad6ac7fc22c95fbc6238c
Version: f38bc926d022ebd67baad6ac7fc22c95fbc6238c
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              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
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              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: trigger: sysfs: fix use-after-free on remove\n\nEnsure that the irq_work has completed before the trigger is freed.\n\n ==================================================================\n BUG: KASAN: use-after-free in irq_work_run_list\n Read of size 8 at addr 0000000064702248 by task python3/25\n\n Call Trace:\n  irq_work_run_list\n  irq_work_tick\n  update_process_times\n  tick_sched_handle\n  tick_sched_timer\n  __hrtimer_run_queues\n  hrtimer_interrupt\n\n Allocated by task 25:\n  kmem_cache_alloc_trace\n  iio_sysfs_trig_add\n  dev_attr_store\n  sysfs_kf_write\n  kernfs_fop_write_iter\n  new_sync_write\n  vfs_write\n  ksys_write\n  sys_write\n\n Freed by task 25:\n  kfree\n  iio_sysfs_trig_remove\n  dev_attr_store\n  sysfs_kf_write\n  kernfs_fop_write_iter\n  new_sync_write\n  vfs_write\n  ksys_write\n  sys_write\n\n =================================================================="
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      "providerMetadata": {
        "dateUpdated": "2026-05-11T19:04:42.944Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/d6111e7bdb8ec27eb43d01c4cd4ff1620a75f7f2"
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          "url": "https://git.kernel.org/stable/c/fd5d8fb298a2866c337da635c79d63c3afabcaf7"
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          "url": "https://git.kernel.org/stable/c/31ff3309b47d98313c61b8301bf595820cc3cc33"
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        {
          "url": "https://git.kernel.org/stable/c/5e39397d60dacc7f5d81d442c1c958eaaaf31128"
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          "url": "https://git.kernel.org/stable/c/b07a30a774b3c3e584a68dc91779c68ea2da4813"
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        },
        {
          "url": "https://git.kernel.org/stable/c/78601726d4a59a291acc5a52da1d3a0a6831e4e8"
        }
      ],
      "title": "iio: trigger: sysfs: fix use-after-free on remove",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49685",
    "datePublished": "2025-02-26T02:24:12.143Z",
    "dateReserved": "2025-02-26T02:21:30.441Z",
    "dateUpdated": "2026-05-11T19:04:42.944Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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