Use-after-free in Linux kernel - CVE-2026-46075
Published: May 27, 2026
Vulnerability identifier: #VU132420
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-46075
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.
The vulnerability exists due to use-after-free in the atmel-sha204a remove path when handling device removal with queued hwrng read callbacks. A local user can trigger access to the device during removal to cause a denial of service.
How to mitigate CVE-2026-46075
Install security update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/1193c12126d39bf986a5a9214827b73707b193ab
- https://git.kernel.org/stable/c/31901371ccd16b42d2f167b1018ba9ae8bd5a6c7
- https://git.kernel.org/stable/c/775c00d87c385b758da9504cf053acea00e2ed40
- https://git.kernel.org/stable/c/bab1adf3b87e4bfac92c4f5963c63db434d561c1
- https://git.kernel.org/stable/c/c5a45d14234bf26e28a89e3a5dcc08336595cf11