CVE-2026-68182 Affecting kernel-default-livepatch package, versions <6.4.0-150700.53.81.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.22% (12th percentile)

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  • Snyk IDSNYK-SLES157-KERNELDEFAULTLIVEPATCH-19913816
  • published18 Sept 2026
  • disclosed17 Sept 2026

Introduced: 17 Sep 2026

NewCVE-2026-68182  (opens in a new tab)

How to fix?

Upgrade SLES:15.7 kernel-default-livepatch to version 6.4.0-150700.53.81.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-default-livepatch package and not the kernel-default-livepatch package as distributed by SLES. See How to fix? for SLES:15.7 relevant fixed versions and status.

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

comedi: comedi_parport: deal with premature interrupt

Syzbot reported a general protection fault in comedi_get_is_subdevice_running(), which was called from the interrupt handler parport_interrupt() in the "comedi_parport" driver, but it does not currently have a C reproducer for the problem. It's probably due to a premature interrupt for one of two reasons:

  1. The driver sets up the interrupt handler before the comedi subdevices used by the interrupt handler have been allocated, but does not disable the interrupt in the parallel port's CTRL register first.
  2. The driver uses a user-supplied I/O port base address which Syzbot would have supplied, but it might not be backed by real parallel port hardware.

Change the initialization order in the driver's comedi "attach" handler (parport_attach()) so that the hardware registers are initialized before the interrupt handler is requested. This should prevent premature interrupts occurring for real hardware.

Also add a test to the interrupt handler to ensure the comedi device is fully attached and return early if it isn't.

CVSS Base Scores

version 3.1