CVE-2025-68751 addresses a false-positive Kernel Memory Sanitizer (KMSAN) report in the Linux kernel's s390/fpu module, specifically within the fpu_vstl() function. This issue, triggered by the 'ping' command, stemmed from clang incorrectly estimating the write size of an inline assembly instruction, leading to erroneous uninitialized memory warnings. The vulnerability is not a security flaw but a diagnostic error, thus it has no direct attack vector, complexity, or impact on system security. There is no evidence of active exploitation, exploit code availability, or significant community discussion, indicating a low-risk, non-exploitable issue.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
| Linux | Linux | 6.9CNA affecteddefault affected | |
| Linux | Linux | >= dcd3e1de9d17dc43dfed87a9fc814b9dec508043, < 13dcd6308cb8f67134ee5d5d762b2a66363c695b, >= dcd3e1de9d17dc43dfed87a9fc814b9dec508043, < 14e4e4175b64dd9216b522f6ece8af6997d063b2, >= dcd3e1de9d17dc43dfed87a9fc814b9dec508043, < 946357a538bb47740635c25520924351d2d91544CNA affecteddefault unaffected |
CVSS data has not been published for this CVE.
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Mar 16, 2026kernel: s390/fpu: Fix false-positive kmsan report in fpu_vstl()
Jan 5, 2026