CVE-2026-23307 Affecting kernel-macros package, versions <6.12.0-160000.33.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.03% (10th percentile)

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  • Snyk IDSNYK-SLES1600-KERNELMACROS-17124461
  • published2 Jun 2026
  • disclosed28 May 2026

Introduced: 28 May 2026

NewCVE-2026-23307  (opens in a new tab)

How to fix?

Upgrade SLES:16.0.0 kernel-macros to version 6.12.0-160000.33.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-macros package and not the kernel-macros package as distributed by SLES. See How to fix? for SLES:16.0.0 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

can: ems_usb: ems_usb_read_bulk_callback(): check the proper length of a message

When looking at the data in a USB urb, the actual_length is the size of the buffer passed to the driver, not the transfer_buffer_length which is set by the driver as the max size of the buffer.

When parsing the messages in ems_usb_read_bulk_callback() properly check the size both at the beginning of parsing the message to make sure it is big enough for the expected structure, and at the end of the message to make sure we don't overflow past the end of the buffer for the next message.

CVSS Base Scores

version 3.1