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CVE-2023-54079· NVD / CVE Program· CNA Linux

power: supply: bq27xxx: Fix poll_interval handling and races on remove

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.

HighCVSS 7.8 · v3.1—No exploit Fix available
Published
Dec 24, 2025
Updated
Aug 5, 2026
EPSS
0.2% · 5th percentile
CWE
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Report tools

JSON

Action score

31

Monitor

Low priority for now.

CVSS
31 / 40 · 7.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

CNA vs NVD score

NVD
—
CNA · Linux
7.8
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Affected systems

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Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 3.3affected
    • 8cfaaa811894a3ae2d7360a15a6cfccff3ebc7db and later · before 4c9615474fb0a41cfad658d78db3c9ec70912969affected · git
    • 8cfaaa811894a3ae2d7360a15a6cfccff3ebc7db and later · before 465d919151a1e8d40daf366b868914f59d073211affected · git
    • 8cfaaa811894a3ae2d7360a15a6cfccff3ebc7db and later · before 0c5f4cec759679c290720fbcf6bb81768e21c95baffected · git
    • 8cfaaa811894a3ae2d7360a15a6cfccff3ebc7db and later · before e85757da9091998276ff21a13915ac25229cc232affected · git
    • 8cfaaa811894a3ae2d7360a15a6cfccff3ebc7db and later · before e98e5bebfcafc75a7b41192a607dfea5c1268afaaffected · git
    • 8cfaaa811894a3ae2d7360a15a6cfccff3ebc7db and later · before d952a1eaafcc5f0351caad5dbe9b5b3300d1d529affected · git
    • 8cfaaa811894a3ae2d7360a15a6cfccff3ebc7db and later · before b12faeca0e819ea09051a705fef9df7ea7e9e18caffected · git
    • 8cfaaa811894a3ae2d7360a15a6cfccff3ebc7db and later · before c00bc80462afc7963f449d7f21d896d2f629caccaffected · git
    • before 3.3not affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.37-16.1.37-1
Debian:13linuxbefore 6.3.7-16.3.7-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

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    40Plan

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux0c5f4cec759679c290720fbcf6bb81768e21c95bVendor (CNA)
Linux Linux465d919151a1e8d40daf366b868914f59d073211Vendor (CNA)
Linux Linux4c9615474fb0a41cfad658d78db3c9ec70912969Vendor (CNA)
Linux Linuxb12faeca0e819ea09051a705fef9df7ea7e9e18cVendor (CNA)
Linux Linuxc00bc80462afc7963f449d7f21d896d2f629caccVendor (CNA)
Linux Linuxd952a1eaafcc5f0351caad5dbe9b5b3300d1d529Vendor (CNA)
Linux Linuxe85757da9091998276ff21a13915ac25229cc232Vendor (CNA)
Linux Linuxe98e5bebfcafc75a7b41192a607dfea5c1268afaVendor (CNA)
debian:linux6.1.37-1 · Debian:12Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

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Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

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CVSS vector

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

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Noroxi analysis

No Noroxi analysis for this record yet

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Change log

  1. Fix✗ → ✓

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References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records