CVE-2026-45869
Description
In the Linux kernel, the following vulnerability has been resolved: power: supply: wm97xx: Fix NULL pointer dereference in power_supply_changed() In `probe()`, `request_irq()` is called before allocating/registering a `power_supply` handle. If an interrupt is fired between the call to `request_irq()` and `power_supply_register()`, the `power_supply` handle will be used uninitialized in `power_supply_changed()` in `wm97xx_bat_update()` (triggered from the interrupt handler). This will lead to a `NULL` pointer dereference since Fix this racy `NULL` pointer dereference by making sure the IRQ is requested _after_ the registration of the `power_supply` handle. Since the IRQ is the last thing requests in the `probe()` now, remove the error path for freeing it. Instead add one for unregistering the `power_supply` handle when IRQ request fails.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | bookworm | fixed | 6.1.170-1 |
| debian | bullseye | fixed | 5.10.257-1 |
| debian | forky | fixed | 6.18.14-1 |
| debian | sid | fixed | 6.18.14-1 |
| debian | trixie | fixed | 6.12.85-1 |
| sles | affected | |
References
- https://git.kernel.org/stable/c/3d7b5391bb95505b3581c1fb77150c467ab92864
- https://git.kernel.org/stable/c/438f9a303ea8b55162b2d5376490c2ab3ec165a0
- https://git.kernel.org/stable/c/9b7d77cb046b4487e8e511e04e62b6f416ce845c
- https://git.kernel.org/stable/c/86183153c299e8bb1839e717286d6c6f39508a59
- https://git.kernel.org/stable/c/93bdf715d33cf5ee01c58e8546c2469c71ce082a
- https://git.kernel.org/stable/c/c0def811ad8d642dca9b6d31a198cc39f5f90837
- https://git.kernel.org/stable/c/dfaf235d5a6b60cbf115a14a656946303ad007b7
- https://git.kernel.org/stable/c/39fe0eac6d755ef215026518985fcf8de9360e9e
- https://security-tracker.debian.org/tracker/CVE-2026-45869
- https://www.suse.com/security/cve/CVE-2026-45869.html
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.