VulnerabilityPublished 11 Sep 2026Updated 21 Oct 2026

CVE-2026-89467: Linux kernel · power: supply: qcom_battmgr: fix use-after-free

Affects Linux kernelSource CVE Database V5

Not known to be exploited · fixed in 06618447029c6dddaa02f6e9528efe5dd49fc329 : update Linux kernel when convenient.

Data as of 26 Oct 2026, 13:47 UTC

Severity

Unrated

Rated by Threat Radar · CVSS not yet scored by NVD

EPSS: 0.1% chance of exploitation in 30 days – higher than 6% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 06618447029c6dddaa02f6e9528efe5dd49fc329, 35964ed01e10b61a30066b0c568aa0e0e8fb6432, 77fefca305db44b0edd3fcdb52d781771c1ce366 +2

Exploitation evidence

Disclosed: evidence found.
CVE published 11 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 29e8142b5623b5949587bcc4f591c4e6595c4aca, < 06618447029c6dddaa02f6e9528efe5dd49fc329	Fixed in 06618447029c6dddaa02f6e9528efe5dd49fc329
LinuxLinux	Affected ≥ 29e8142b5623b5949587bcc4f591c4e6595c4aca, < 35964ed01e10b61a30066b0c568aa0e0e8fb6432	Fixed in 35964ed01e10b61a30066b0c568aa0e0e8fb6432
LinuxLinux	Affected ≥ 29e8142b5623b5949587bcc4f591c4e6595c4aca, < 77fefca305db44b0edd3fcdb52d781771c1ce366	Fixed in 77fefca305db44b0edd3fcdb52d781771c1ce366
LinuxLinux	Affected ≥ 29e8142b5623b5949587bcc4f591c4e6595c4aca, < 49fbcd3da2958159370d25dafbf736e654a4d59b	Fixed in 49fbcd3da2958159370d25dafbf736e654a4d59b
LinuxLinux	Affected ≥ 29e8142b5623b5949587bcc4f591c4e6595c4aca, < 4e40befedfc8ed86f44e1f81df92d13c149c9f8d	Fixed in 4e40befedfc8ed86f44e1f81df92d13c149c9f8d
LinuxLinux	Affected =6.3	Fixed in–

Description

In the Linux kernel, the following vulnerability has been resolved: power: supply: qcom_battmgr: fix use-after-free qcom_battmgr_pdr_notify() queues enable_work when the PMIC GLINK service comes up, and the worker recovers battmgr through container_of() to issue firmware requests. The PMIC GLINK client stays on the client list until its devres release action runs, so a PDR notification can keep queueing the work, and a pending or running worker can access battmgr after devres frees it. Make enable_work device-managed with devm_work_autocancel(), registered before the PMIC GLINK client is allocated. The devres cleanup then releases the client first, so no further notification can queue the work, and cancels the work before battmgr is freed. This issue was found by an in-house static analysis tool.

References

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