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.
References
Configurations
Configuration 1 (hide)
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History
25 Jun 2026, 21:06
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://git.kernel.org/stable/c/39fe0eac6d755ef215026518985fcf8de9360e9e - Patch | |
| References | () https://git.kernel.org/stable/c/3d7b5391bb95505b3581c1fb77150c467ab92864 - Patch | |
| References | () https://git.kernel.org/stable/c/438f9a303ea8b55162b2d5376490c2ab3ec165a0 - Patch | |
| References | () https://git.kernel.org/stable/c/86183153c299e8bb1839e717286d6c6f39508a59 - Patch | |
| References | () https://git.kernel.org/stable/c/93bdf715d33cf5ee01c58e8546c2469c71ce082a - Patch | |
| References | () https://git.kernel.org/stable/c/9b7d77cb046b4487e8e511e04e62b6f416ce845c - Patch | |
| References | () https://git.kernel.org/stable/c/c0def811ad8d642dca9b6d31a198cc39f5f90837 - Patch | |
| References | () https://git.kernel.org/stable/c/dfaf235d5a6b60cbf115a14a656946303ad007b7 - Patch | |
| First Time |
Linux linux Kernel
Linux |
|
| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
| CWE | CWE-476 |
27 May 2026, 14:17
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-05-27 14:17
Updated : 2026-06-25 21:06
NVD link : CVE-2026-45869
Mitre link : CVE-2026-45869
CVE.ORG link : CVE-2026-45869
JSON object : View
Products Affected
linux
- linux_kernel
CWE
CWE-476
NULL Pointer Dereference
