CVE-2026-45869power: supply: wm97xx: Fix NULL pointer dereference in power_supply_changed()
- 5.5MediumCVSS base score
- 0.16%Exploitation in 30 daysEPSS · top 95% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By Linux
- 14 days later
· 14 days later
Published
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Analyzed | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.16% · top 95% of all CVEs (12 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected 7c87942aef52d2120e95ff1dec739998b9f95a78 – < 3d7b5391bb95505b3581c1fb77150c467ab92864
- affected 7c87942aef52d2120e95ff1dec739998b9f95a78 – < 438f9a303ea8b55162b2d5376490c2ab3ec165a0
- affected 7c87942aef52d2120e95ff1dec739998b9f95a78 – < 9b7d77cb046b4487e8e511e04e62b6f416ce845c
- affected 7c87942aef52d2120e95ff1dec739998b9f95a78 – < 86183153c299e8bb1839e717286d6c6f39508a59
- affected 7c87942aef52d2120e95ff1dec739998b9f95a78 – < 93bdf715d33cf5ee01c58e8546c2469c71ce082a
- affected 7c87942aef52d2120e95ff1dec739998b9f95a78 – < c0def811ad8d642dca9b6d31a198cc39f5f90837
- affected 7c87942aef52d2120e95ff1dec739998b9f95a78 – < dfaf235d5a6b60cbf115a14a656946303ad007b7
- affected 7c87942aef52d2120e95ff1dec739998b9f95a78 – < 39fe0eac6d755ef215026518985fcf8de9360e9e
- affected 2.6.32
- unaffected < 2.6.32
- unaffected 5.10.252 – ≤ 5.10.*
- unaffected 5.15.202 – ≤ 5.15.*
- unaffected 6.1.165 – ≤ 6.1.*
- unaffected 6.6.128 – ≤ 6.6.*
- unaffected 6.12.75 – ≤ 6.12.*
- unaffected 6.18.14 – ≤ 6.18.*
- unaffected 6.19.4 – ≤ 6.19.*
- unaffected 7.0 – ≤ *
References
References8
- https://git.kernel.org/stable/c/3d7b5391bb95505b3581c1fb77150c467ab92864 (opens in a new tab)
- https://git.kernel.org/stable/c/438f9a303ea8b55162b2d5376490c2ab3ec165a0 (opens in a new tab)
- https://git.kernel.org/stable/c/9b7d77cb046b4487e8e511e04e62b6f416ce845c (opens in a new tab)
- https://git.kernel.org/stable/c/86183153c299e8bb1839e717286d6c6f39508a59 (opens in a new tab)
- https://git.kernel.org/stable/c/93bdf715d33cf5ee01c58e8546c2469c71ce082a (opens in a new tab)
- https://git.kernel.org/stable/c/c0def811ad8d642dca9b6d31a198cc39f5f90837 (opens in a new tab)
- https://git.kernel.org/stable/c/dfaf235d5a6b60cbf115a14a656946303ad007b7 (opens in a new tab)
- https://git.kernel.org/stable/c/39fe0eac6d755ef215026518985fcf8de9360e9e (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-32335 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-45869)Record last updated .