FKIE_CVE-2023-54079

Vulnerability from fkie_nvd - Published: 2025-12-24 13:16 - Updated: 2025-12-24 13:16
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: power: supply: bq27xxx: Fix poll_interval handling and races on remove Before this patch bq27xxx_battery_teardown() was setting poll_interval = 0 to avoid bq27xxx_battery_update() requeuing the delayed_work item. There are 2 problems with this: 1. If the driver is unbound through sysfs, rather then the module being rmmod-ed, this changes poll_interval unexpectedly 2. This is racy, after it being set poll_interval could be changed before bq27xxx_battery_update() checks it through /sys/module/bq27xxx_battery/parameters/poll_interval Fix this by added a removed attribute to struct bq27xxx_device_info and using that instead of setting poll_interval to 0. There also is another poll_interval related race on remove(), writing /sys/module/bq27xxx_battery/parameters/poll_interval will requeue the delayed_work item for all devices on the bq27xxx_battery_devices list and the device being removed was only removed from that list after cancelling the delayed_work item. Fix this by moving the removal from the bq27xxx_battery_devices list to before cancelling the delayed_work item.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0c5f4cec759679c290720fbcf6bb81768e21c95b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/465d919151a1e8d40daf366b868914f59d073211
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4c9615474fb0a41cfad658d78db3c9ec70912969
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b12faeca0e819ea09051a705fef9df7ea7e9e18c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c00bc80462afc7963f449d7f21d896d2f629cacc
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d952a1eaafcc5f0351caad5dbe9b5b3300d1d529
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e85757da9091998276ff21a13915ac25229cc232
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e98e5bebfcafc75a7b41192a607dfea5c1268afa
Impacted products
Vendor Product Version
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{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npower: supply: bq27xxx: Fix poll_interval handling and races on remove\n\nBefore this patch bq27xxx_battery_teardown() was setting poll_interval = 0\nto avoid bq27xxx_battery_update() requeuing the delayed_work item.\n\nThere are 2 problems with this:\n\n1. If the driver is unbound through sysfs, rather then the module being\n   rmmod-ed, this changes poll_interval unexpectedly\n\n2. This is racy, after it being set poll_interval could be changed\n   before bq27xxx_battery_update() checks it through\n   /sys/module/bq27xxx_battery/parameters/poll_interval\n\nFix this by added a removed attribute to struct bq27xxx_device_info and\nusing that instead of setting poll_interval to 0.\n\nThere also is another poll_interval related race on remove(), writing\n/sys/module/bq27xxx_battery/parameters/poll_interval will requeue\nthe delayed_work item for all devices on the bq27xxx_battery_devices\nlist and the device being removed was only removed from that list\nafter cancelling the delayed_work item.\n\nFix this by moving the removal from the bq27xxx_battery_devices list\nto before cancelling the delayed_work item."
    }
  ],
  "id": "CVE-2023-54079",
  "lastModified": "2025-12-24T13:16:09.750",
  "metrics": {},
  "published": "2025-12-24T13:16:09.750",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/0c5f4cec759679c290720fbcf6bb81768e21c95b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/465d919151a1e8d40daf366b868914f59d073211"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/4c9615474fb0a41cfad658d78db3c9ec70912969"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/b12faeca0e819ea09051a705fef9df7ea7e9e18c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c00bc80462afc7963f449d7f21d896d2f629cacc"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d952a1eaafcc5f0351caad5dbe9b5b3300d1d529"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/e85757da9091998276ff21a13915ac25229cc232"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/e98e5bebfcafc75a7b41192a607dfea5c1268afa"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}


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