power: supply: twl4030_charger: cancel workers via devm
Key facts
- Attack vector
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- Privileges required
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- User interaction
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- Attack complexity
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- Impact type
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- Confidentiality · integrity · availability
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- Fix status
- Partial Red Hat: 1 without a fix
No CVSS vector from any source. Fix status from CNA and Red Hat.
Summary
In the Linux kernel, the following vulnerability has been resolved: power: supply: twl4030_charger: cancel workers via devm bci is devm-allocated. Two workers (bci->work and bci->current_worker) dereference it. twl4030_bci_remove() disables charging and masks interrupts. It cancels neither worker. A worker pending at remove() can run after devm frees bci. The USB transceiver comes from devm_usb_get_phy_by_node(). devm unregisters its notifier only after remove() returns. A cancel_work_sync() in remove() can then race a notifier reschedule. devm_work_autocancel() and devm_delayed_work_autocancel() avoid that. They cancel the workers during devm release, before bci is freed. The current_worker is registered first, since devm will cancel in reverse order and bci->work can reschedule current_worker. [Move comment about order into the commit message]
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.15.221, 6.1.188, 6.6.157, 6.12.109, 6.18.50, 7.2.4, 7.3
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat OpenShift Container Platform 5 | Affected | No fix yet: Fix deferred |
Not affected: 6 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat OpenShift Container Platform 4
Timeline
- 2026-10-02 Threatist record created from CVE-2026-89464
- 2026-10-03 Alias added: GHSA-pf33-mh27-rp5j
- 2026-10-19 Fix available: Linux/[email protected] · CNA
- 2026-11-06 Affected versions changed · Red Hat
References
Other 7
- https://git.kernel.org/stable/c/9644c96ef8646c65d46caa5139a6631e29b79d6c
- https://git.kernel.org/stable/c/e9fffe10bd791082263c1678f2f6cdd6d7b487e0
- https://git.kernel.org/stable/c/c46c205bab0dfce4dd54aeb49da3f183e1fdfc63
- https://git.kernel.org/stable/c/72a2d6cd049f892853e4e2d8d8fc5e7d0244a458
- https://git.kernel.org/stable/c/a4460e89d4088cfec2da5be33e265ef1a8e780e9
- https://git.kernel.org/stable/c/b955da82db4170bdf1c784dc457287aa0c977378
- https://git.kernel.org/stable/c/6eba34732524067da2aad5ddfdfbc641ded10e9e
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- TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
Sources
- CVE-2026-89464 · CVE Program
- CVE-2026-89464 · NVD
- FIRST EPSS
- GHSA-pf33-mh27-rp5j · GitHub Advisory Database · CC BY 4.0
- CVE-2026-89464 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences