CVE-2023-54145 Affecting kernel-source-azure package, versions <6.4.0-150700.20.24.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-SLES157-KERNELSOURCEAZURE-15106012
- published27 Jan 2026
- disclosed23 Jan 2026
Introduced: 23 Jan 2026
CVE-2023-54145 (opens in a new tab)How to fix?
Upgrade SLES:15.7 kernel-source-azure to version 6.4.0-150700.20.24.1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-source-azure package and not the kernel-source-azure 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:
bpf: drop unnecessary user-triggerable WARN_ONCE in verifierl log
It's trivial for user to trigger "verifier log line truncated" warning, as verifier has a fixed-sized buffer of 1024 bytes (as of now), and there are at least two pieces of user-provided information that can be output through this buffer, and both can be arbitrarily sized by user:
- BTF names;
- BTF.ext source code lines strings.
Verifier log buffer should be properly sized for typical verifier state output. But it's sort-of expected that this buffer won't be long enough in some circumstances. So let's drop the check. In any case code will work correctly, at worst truncating a part of a single line output.
References
- https://www.suse.com/security/cve/CVE-2023-54145.html
- https://bugzilla.suse.com/1256090
- https://git.kernel.org/stable/c/40c88c429a598006f91ad7a2b89856cd50b3a008
- https://git.kernel.org/stable/c/926a175026fed5d534f587ea4ec3ec49265cd3c5
- https://git.kernel.org/stable/c/cff36398bd4c7d322d424433db437f3c3391c491