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CVE-2026-89464

UnknownEPSS 0.17%

Last modified

CVE-2026-89464 is a vulnerability of currently unknown severity. 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. EPSS estimates a 0.17% chance of exploitation in the next 30 days.

Description

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]

Metrics

EPSS Probability
0.17%

6.3th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

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

VendorProductVersions
LinuxLinux>= d6ccc442b12102414c1343f0adacaa8a1aaa516c, < 9644c96ef8646c65d46caa5139a6631e29b79d6c; >= d6ccc442b12102414c1343f0adacaa8a1aaa516c, < e9fffe10bd791082263c1678f2f6cdd6d7b487e0; >= d6ccc442b12102414c1343f0adacaa8a1aaa516c, < c46c205bab0dfce4dd54aeb49da3f183e1fdfc63; >= d6ccc442b12102414c1343f0adacaa8a1aaa516c, < 72a2d6cd049f892853e4e2d8d8fc5e7d0244a458; >= d6ccc442b12102414c1343f0adacaa8a1aaa516c, < a4460e89d4088cfec2da5be33e265ef1a8e780e9; >= d6ccc442b12102414c1343f0adacaa8a1aaa516c, < b955da82db4170bdf1c784dc457287aa0c977378; >= d6ccc442b12102414c1343f0adacaa8a1aaa516c, < 6eba34732524067da2aad5ddfdfbc641ded10e9e
LinuxLinux2.6.39

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-89464?
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]
How severe is CVE-2026-89464?
Severity scoring for CVE-2026-89464 is pending analysis. The EPSS model estimates a 0.17% probability of exploitation in the next 30 days.
How do I fix CVE-2026-89464?
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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Source: NVD / NIST