cbcvebase.
CVE-2026-45946
published 2026-05-27

CVE-2026-45946: In the Linux kernel, the following vulnerability has been resolved: power: supply: ab8500: Fix use-after-free in power_supply_changed() Using the `devm_`…

PriorityP340high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.16%
5.6th percentile
In the Linux kernel, the following vulnerability has been resolved: power: supply: ab8500: Fix use-after-free in power_supply_changed() Using the `devm_` variant for requesting IRQ _before_ the `devm_` variant for allocating/registering the `power_supply` handle, means that the `power_supply` handle will be deallocated/unregistered _before_ the interrupt handler (since `devm_` naturally deallocates in reverse allocation order). This means that during removal, there is a race condition where an interrupt can fire just _after_ the `power_supply` handle has been freed, *but* just _before_ the corresponding unregistration of the IRQ handler has run. This will lead to the IRQ handler calling `power_supply_changed()` with a freed `power_supply` handle. Which usually crashes the system or otherwise silently corrupts the memory... Note that there is a similar situation which can also happen during `probe()`; the possibility of an interrupt firing _before_ registering the `power_supply` handle. This would then lead to the nasty situation of using the `power_supply` handle *uninitialized* in `power_supply_changed()`. Commit 1c1f13a006ed ("power: supply: ab8500: Move to componentized binding") introduced this issue during a refactorization. Fix this racy use-after-free by making sure the IRQ is requested _after_ the registration of the `power_supply` handle.

Affected

58 ranges· showing 25
VendorProductVersion rangeFixed in
linuxlinux
linuxlinux
linuxlinux>= 1c1f13a006ed0d71bb5664c8b7e3e77a28da3beb < 43cbb78ee047b9b12d096d40e3be265969d4c1f843cbb78ee047b9b12d096d40e3be265969d4c1f8
linuxlinux>= 1c1f13a006ed0d71bb5664c8b7e3e77a28da3beb < 551672981fe227122258a25a385a05f5c0746ad6551672981fe227122258a25a385a05f5c0746ad6
linuxlinux>= 1c1f13a006ed0d71bb5664c8b7e3e77a28da3beb < f50433f2603def08b21a4bf2fd238687fb5cbde9f50433f2603def08b21a4bf2fd238687fb5cbde9
linuxlinux>= 1c1f13a006ed0d71bb5664c8b7e3e77a28da3beb < 847eeb6c0efcd76c7def73857cf798a4fcd8f79b847eeb6c0efcd76c7def73857cf798a4fcd8f79b
linuxlinux>= 1c1f13a006ed0d71bb5664c8b7e3e77a28da3beb < 709db4b476e254579d9c48ec34d397a41ca0c407709db4b476e254579d9c48ec34d397a41ca0c407
linuxlinux>= 1c1f13a006ed0d71bb5664c8b7e3e77a28da3beb < 46dbda27b028d78087667e8280966b99cec015ca46dbda27b028d78087667e8280966b99cec015ca
linuxlinux>= 1c1f13a006ed0d71bb5664c8b7e3e77a28da3beb < c4af8a98bb52825a5331ae1d0604c0ea6956ba4bc4af8a98bb52825a5331ae1d0604c0ea6956ba4b
linuxlinux>= 5.13.4 < 5.145.14
linuxlinux_kernel>= 5.13.4 < 5.15.2025.15.202
linuxlinux_kernel>= 5.16 < 6.1.1656.1.165
linuxlinux_kernel>= 6.13 < 6.18.146.18.14
linuxlinux_kernel>= 6.19 < 6.19.46.19.4
linuxlinux_kernel>= 6.2 < 6.6.1286.6.128
linuxlinux_kernel>= 6.7 < 6.12.756.12.75
ubuntulinux
ubuntulinux-aws
ubuntulinux-aws-5.15
ubuntulinux-aws-6.8
ubuntulinux-aws-fips
ubuntulinux-azure
ubuntulinux-azure-5.15
ubuntulinux-azure-6.8
ubuntulinux-azure-fde

CVSS provenance

nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
vendor_ubuntu8.8HIGH
Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.