Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 98a2766493589c18c327ae3dad5243b53fcb5f70 before 4e3d3923976a986cc3cf960d13f1264cea8a9bba; affected 98a2766493589c18c327ae3dad5243b53fcb5f70 before 88d8eadfad5d9ff967e74090152940bcfa27df69; affected 98a2766493589c18c327ae3dad5243b53fcb5f70 before b3aa1e9509e1b0a863353356d617fb45d1b6250a; affected 98a2766493589c18c327ae3dad5243b53fcb5f70 before b4eb6a056b441ba0caedfbfc42cec501acf12f67; affected 98a2766493589c18c327ae3dad5243b53fcb5f70 before 831c29a12d560f8a3225f43050b3fbb5dfd79c66 |
| Linux / Linux | affected 3.7; unaffected 0 before 3.7; unaffected 6.6.160 through 6.6.*; unaffected 6.12.109 through 6.12.*; unaffected 6.18.50 through 6.18.*; unaffected 7.2.4 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.
References
- 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