CVE-2026-45869

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.
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

History

25 Jun 2026, 21:06

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/39fe0eac6d755ef215026518985fcf8de9360e9e - () https://git.kernel.org/stable/c/39fe0eac6d755ef215026518985fcf8de9360e9e - Patch
References () https://git.kernel.org/stable/c/3d7b5391bb95505b3581c1fb77150c467ab92864 - () https://git.kernel.org/stable/c/3d7b5391bb95505b3581c1fb77150c467ab92864 - Patch
References () https://git.kernel.org/stable/c/438f9a303ea8b55162b2d5376490c2ab3ec165a0 - () https://git.kernel.org/stable/c/438f9a303ea8b55162b2d5376490c2ab3ec165a0 - Patch
References () https://git.kernel.org/stable/c/86183153c299e8bb1839e717286d6c6f39508a59 - () https://git.kernel.org/stable/c/86183153c299e8bb1839e717286d6c6f39508a59 - Patch
References () https://git.kernel.org/stable/c/93bdf715d33cf5ee01c58e8546c2469c71ce082a - () https://git.kernel.org/stable/c/93bdf715d33cf5ee01c58e8546c2469c71ce082a - Patch
References () https://git.kernel.org/stable/c/9b7d77cb046b4487e8e511e04e62b6f416ce845c - () https://git.kernel.org/stable/c/9b7d77cb046b4487e8e511e04e62b6f416ce845c - Patch
References () https://git.kernel.org/stable/c/c0def811ad8d642dca9b6d31a198cc39f5f90837 - () https://git.kernel.org/stable/c/c0def811ad8d642dca9b6d31a198cc39f5f90837 - Patch
References () https://git.kernel.org/stable/c/dfaf235d5a6b60cbf115a14a656946303ad007b7 - () https://git.kernel.org/stable/c/dfaf235d5a6b60cbf115a14a656946303ad007b7 - Patch
First Time Linux linux Kernel
Linux
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown
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