ghsa-gmfg-4jjj-q47r
Vulnerability from github
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:
-
If the driver is unbound through sysfs, rather then the module being rmmod-ed, this changes poll_interval unexpectedly
-
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.
{
"affected": [],
"aliases": [
"CVE-2023-54079"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-12-24T13:16:09Z",
"severity": null
},
"details": "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": "GHSA-gmfg-4jjj-q47r",
"modified": "2025-12-24T15:30:37Z",
"published": "2025-12-24T15:30:37Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-54079"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0c5f4cec759679c290720fbcf6bb81768e21c95b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/465d919151a1e8d40daf366b868914f59d073211"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/4c9615474fb0a41cfad658d78db3c9ec70912969"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/b12faeca0e819ea09051a705fef9df7ea7e9e18c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c00bc80462afc7963f449d7f21d896d2f629cacc"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d952a1eaafcc5f0351caad5dbe9b5b3300d1d529"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/e85757da9091998276ff21a13915ac25229cc232"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/e98e5bebfcafc75a7b41192a607dfea5c1268afa"
}
],
"schema_version": "1.4.0",
"severity": []
}
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