CVE-2026-89463power: supply: ucs1002: fix use-after-free on remove
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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In the Linux kernel, the following vulnerability has been resolved: power: supply: ucs1002: fix use-after-free on remove ucs1002 has no remove callback, so unbind runs entirely through devm. The alert IRQ handler queues the health_poll delayed work, and the work reschedules itself while the chip reports a bad-health condition. devm frees the alert IRQ, which only synchronizes the handler; it does not cancel the delayed work, which can then run after devm frees the driver data and dereference it. Register health_poll with devm_delayed_work_autocancel() before the alert IRQ is requested. devm then frees the IRQ before cancelling the work, so the handler can no longer queue it and the work is cancelled before the driver data is freed. This issue was found by an in-house static analysis tool.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Sep 14, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | 81196e2e57fc5b88f6b8ca98372a3dde047aa49d builds before 00c19f8a9a58a318a76fd6f735a8aab3f8ead393; from 81196e2e57fc5b88f6b8ca98372a3dde047aa49d before a9a7bb801c443a4d9fc623c4a47deb53accb70bb; 81196e2e57fc5b88f6b8ca98372a3dde047aa49d builds before 2ec4d203ecb06d327af67e32097fe8f774838a40; 81196e2e57fc5b88f6b8ca98372a3dde047aa49d builds before 4ca2a4678202f15eb790eb7f1d562061709caea7; 81196e2e57fc5b88f6b8ca98372a3dde047aa49d builds before 39b60d615dfa1725c235351fb12bc72e5f8a8d32; 81196e2e57fc5b88f6b8ca98372a3dde047aa49d builds before 35242c93d35f391afdc84cef6236b8ad57f1df24; 81196e2e57fc5b88f6b8ca98372a3dde047aa49d builds before 609af0ceeaefdfa42cd01dd060b20f2e41f9a232 | CNA record |
References
- https://git.kernel.org/stable/c/00c19f8a9a58a318a76fd6f735a8aab3f8ead393
- https://git.kernel.org/stable/c/a9a7bb801c443a4d9fc623c4a47deb53accb70bb
- https://git.kernel.org/stable/c/2ec4d203ecb06d327af67e32097fe8f774838a40
- https://git.kernel.org/stable/c/4ca2a4678202f15eb790eb7f1d562061709caea7
- https://git.kernel.org/stable/c/39b60d615dfa1725c235351fb12bc72e5f8a8d32
- https://git.kernel.org/stable/c/35242c93d35f391afdc84cef6236b8ad57f1df24
- https://git.kernel.org/stable/c/609af0ceeaefdfa42cd01dd060b20f2e41f9a232
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.