CVE-2023-53494

HIGH

Linux Kernel 5.4 - Use-After-Free in XTS Crypto Request Handling

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: crypto: xts - Handle EBUSY correctly As it is xts only handles the special return value of EINPROGRESS, which means that in all other cases it will free data related to the request. However, as the caller of xts may specify MAY_BACKLOG, we also need to expect EBUSY and treat it in the same way. Otherwise backlogged requests will trigger a use-after-free.

Scores

CVSS v3 7.8
EPSS 0.0015
EPSS Percentile 4.5%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-416
Status published
Products (13)
Linux/Linux < 5.4
Linux/Linux 5.10.173 - 5.10.*
Linux/Linux 5.15.99 - 5.15.*
Linux/Linux 5.4
Linux/Linux 6.1.16 - 6.1.*
Linux/Linux 6.2.3 - 6.2.*
Linux/Linux 6.3
Linux/Linux 8083b1bf8163e7ae7d8c90f221106d96450b8aa8 - 51c082514c2dedf2711c99d93c196cc4eedceb40
Linux/Linux 8083b1bf8163e7ae7d8c90f221106d96450b8aa8 - 57c3e1d63b63dc0841d41df729297cd7c1c35808
Linux/Linux 8083b1bf8163e7ae7d8c90f221106d96450b8aa8 - 912eb10b65646ffd222256c78a1c566a3dac177d
... and 3 more
Published Oct 01, 2025
Tracked Since Feb 18, 2026