CVE-2023-54079: In the Linux kernel, the following vulnerability has been resolved: power: supply: bq27xxx: Fix poll_interval handling and races on remove Before th...

Description

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.

Metrics

CVSS 3.1

7.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.19%

9.1th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

Vendor	Product	Versions
Linux	Linux	>= 8cfaaa811894a3ae2d7360a15a6cfccff3ebc7db, < 4c9615474fb0a41cfad658d78db3c9ec70912969; >= 8cfaaa811894a3ae2d7360a15a6cfccff3ebc7db, < 465d919151a1e8d40daf366b868914f59d073211; >= 8cfaaa811894a3ae2d7360a15a6cfccff3ebc7db, < 0c5f4cec759679c290720fbcf6bb81768e21c95b; >= 8cfaaa811894a3ae2d7360a15a6cfccff3ebc7db, < e85757da9091998276ff21a13915ac25229cc232; >= 8cfaaa811894a3ae2d7360a15a6cfccff3ebc7db, < e98e5bebfcafc75a7b41192a607dfea5c1268afa; >= 8cfaaa811894a3ae2d7360a15a6cfccff3ebc7db, < d952a1eaafcc5f0351caad5dbe9b5b3300d1d529; >= 8cfaaa811894a3ae2d7360a15a6cfccff3ebc7db, < b12faeca0e819ea09051a705fef9df7ea7e9e18c; >= 8cfaaa811894a3ae2d7360a15a6cfccff3ebc7db, < c00bc80462afc7963f449d7f21d896d2f629cacc
Linux	Linux	3.3

References

Timeline

Published: Dec 24, 2025
Last Modified: Aug 4, 2026
Status: Deferred

Frequently Asked Questions

What is CVE-2023-54079?

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.

How severe is CVE-2023-54079?

CVE-2023-54079 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.19% probability of exploitation in the next 30 days.

How do I fix CVE-2023-54079?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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