Use-after-free in Linux kernel - CVE-2026-46270
Published: June 4, 2026
Vulnerability identifier: #VU133311
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-46270
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to cause a denial of service or corrupt memory.
The vulnerability exists due to a use-after-free in the rt9455 charger driver interrupt handling path when handling interrupts during device probe or removal. A local user can trigger a race condition to cause a denial of service or corrupt memory.
The issue can also occur if an interrupt fires before the power_supply handle is registered, leading to use of an uninitialized handle in power_supply_changed().
How to mitigate CVE-2026-46270
Install security update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/2178dc65d45e2f7bcaa8af8d80d100419bdab251
- https://git.kernel.org/stable/c/62d753b916bd500bb269b7078cdab73198ab4718
- https://git.kernel.org/stable/c/64e15155095f39f4dec9b4659da1238ef8fc54d4
- https://git.kernel.org/stable/c/721449a15170fc5f028a7576d7f65b9f60d53482
- https://git.kernel.org/stable/c/a39f8f06216f73ef40e71e2fe4ad071964c1fd36
- https://git.kernel.org/stable/c/af261f218a7606f93d2c786353d60bb4feb56ef0
- https://git.kernel.org/stable/c/d4e2e3c3caa26b93aa9f36d0a6824b584e2a8dfc
- https://git.kernel.org/stable/c/e2febe375e5ea5afed92f4cd9711bde8f24ee6d2