CVE-2023-54079
power: supply: bq27xxx: Fix poll_interval handling and races on remove
- Published
- Updated
- Reserved
- Assigned by
- Linux
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Deferred | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.17% · top 94% of all CVEs (2 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
Linux · Linux
- affected 8cfaaa811894a3ae2d7360a15a6cfccff3ebc7db – < 4c9615474fb0a41cfad658d78db3c9ec70912969
- affected 8cfaaa811894a3ae2d7360a15a6cfccff3ebc7db – < 465d919151a1e8d40daf366b868914f59d073211
- affected 8cfaaa811894a3ae2d7360a15a6cfccff3ebc7db – < 0c5f4cec759679c290720fbcf6bb81768e21c95b
- affected 8cfaaa811894a3ae2d7360a15a6cfccff3ebc7db – < e85757da9091998276ff21a13915ac25229cc232
- affected 8cfaaa811894a3ae2d7360a15a6cfccff3ebc7db – < e98e5bebfcafc75a7b41192a607dfea5c1268afa
- affected 8cfaaa811894a3ae2d7360a15a6cfccff3ebc7db – < d952a1eaafcc5f0351caad5dbe9b5b3300d1d529
- affected 8cfaaa811894a3ae2d7360a15a6cfccff3ebc7db – < b12faeca0e819ea09051a705fef9df7ea7e9e18c
- affected 8cfaaa811894a3ae2d7360a15a6cfccff3ebc7db – < c00bc80462afc7963f449d7f21d896d2f629cacc
Linux · Linux
- affected 3.3
- unaffected < 3.3
- unaffected 4.14.316 – ≤ 4.14.*
- unaffected 4.19.284 – ≤ 4.19.*
- unaffected 5.4.244 – ≤ 5.4.*
- unaffected 5.10.181 – ≤ 5.10.*
- unaffected 5.15.114 – ≤ 5.15.*
- unaffected 6.1.31 – ≤ 6.1.*
- unaffected 6.3.5 – ≤ 6.3.*
- unaffected 6.4 – ≤ *
References (8)
- https://git.kernel.org/stable/c/4c9615474fb0a41cfad658d78db3c9ec70912969 (opens in a new tab)
- https://git.kernel.org/stable/c/465d919151a1e8d40daf366b868914f59d073211 (opens in a new tab)
- https://git.kernel.org/stable/c/0c5f4cec759679c290720fbcf6bb81768e21c95b (opens in a new tab)
- https://git.kernel.org/stable/c/e85757da9091998276ff21a13915ac25229cc232 (opens in a new tab)
- https://git.kernel.org/stable/c/e98e5bebfcafc75a7b41192a607dfea5c1268afa (opens in a new tab)
- https://git.kernel.org/stable/c/d952a1eaafcc5f0351caad5dbe9b5b3300d1d529 (opens in a new tab)
- https://git.kernel.org/stable/c/b12faeca0e819ea09051a705fef9df7ea7e9e18c (opens in a new tab)
- https://git.kernel.org/stable/c/c00bc80462afc7963f449d7f21d896d2f629cacc (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Record last updated .