CVE-2026-46243 Affecting kernel-livepatch-6_4_0-150600_23_130-default package, versions <1-150600.13.5.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.38% (31st percentile)

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  • Snyk IDSNYK-SLES156-KERNELLIVEPATCH64015060023130DEFAULT-18765769
  • published14 Aug 2026
  • disclosed12 Aug 2026

Introduced: 12 Aug 2026

NewCVE-2026-46243  (opens in a new tab)

How to fix?

Upgrade SLES:15.6 kernel-livepatch-6_4_0-150600_23_130-default to version 1-150600.13.5.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-livepatch-6_4_0-150600_23_130-default package and not the kernel-livepatch-6_4_0-150600_23_130-default package as distributed by SLES. See How to fix? for SLES:15.6 relevant fixed versions and status.

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

smb: client: reject userspace cifs.spnego descriptions

cifs.spnego key descriptions contain authority-bearing fields such as pid, uid, creduid, and upcall_target that cifs.upcall treats as kernel-originating inputs. However, userspace can also create keys of this type through request_key(2) or add_key(2), allowing those fields to be supplied without CIFS origin.

Only accept cifs.spnego descriptions while CIFS is using its private spnego_cred to request the key.

References

CVSS Base Scores

version 3.1