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
No CVSS score has been published yet.
Affected software
Source: the vendor's advisory (CNA). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= d6ccc442b12102414c1343f0adacaa8a1aaa516c, < 9644c96ef8646c65d46caa5139a6631e29b79d6c; >= d6ccc442b12102414c1343f0adacaa8a1aaa516c, < e9fffe10bd791082263c1678f2f6cdd6d7b487e0; >= d6ccc442b12102414c1343f0adacaa8a1aaa516c, < c46c205bab0dfce4dd54aeb49da3f183e1fdfc63; >= d6ccc442b12102414c1343f0adacaa8a1aaa516c, < 72a2d6cd049f892853e4e2d8d8fc5e7d0244a458; >= d6ccc442b12102414c1343f0adacaa8a1aaa516c, < a4460e89d4088cfec2da5be33e265ef1a8e780e9; >= d6ccc442b12102414c1343f0adacaa8a1aaa516c, < b955da82db4170bdf1c784dc457287aa0c977378; >= d6ccc442b12102414c1343f0adacaa8a1aaa516c, < 6eba34732524067da2aad5ddfdfbc641ded10e9e |
| Linux | Linux | 2.6.39 |
References
- https://git.kernel.org/stable/c/6eba34732524067da2aad5ddfdfbc641ded10e9e
- https://git.kernel.org/stable/c/72a2d6cd049f892853e4e2d8d8fc5e7d0244a458
- https://git.kernel.org/stable/c/9644c96ef8646c65d46caa5139a6631e29b79d6c
- https://git.kernel.org/stable/c/a4460e89d4088cfec2da5be33e265ef1a8e780e9
- https://git.kernel.org/stable/c/b955da82db4170bdf1c784dc457287aa0c977378
- https://git.kernel.org/stable/c/c46c205bab0dfce4dd54aeb49da3f183e1fdfc63
- https://git.kernel.org/stable/c/e9fffe10bd791082263c1678f2f6cdd6d7b487e0
Timeline
- Published
- Sep 11, 2026
- Last modified
- Oct 19, 2026
- NVD status
- Received