Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: s390/bpf: Zero-extend bpf prog return values and kfunc arguments s390x ABI requires callers to zero-extend unsigned arguments and sign-extend signed arguments, and callees to zero-extend unsigned return values and sign-extend signed return values. s390 BPF JIT currently implements only sign extension. Fix this omission and implement zero extension too.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 6.3, < 6.6.141 |
References
- https://git.kernel.org/stable/c/202e42e4aa890172366354b233c42c73107a3f59Patch
- https://git.kernel.org/stable/c/366b0e05ee24f5ba62bdc7ec1346038258b9a797Patch
- https://git.kernel.org/stable/c/44c4f999b03f55debb1a0c5ab5c1796895a1adf8Patch
- https://git.kernel.org/stable/c/834918a77be51419383bf1dda9f02b81ecf26b34Patch
- https://git.kernel.org/stable/c/edc90a12073b9a530064a99945c183dde120cb99Patch
FAQ
What is CVE-2026-53110?
CVE-2026-53110 is a vulnerability with a CVSS score of 7.8 (HIGH). In the Linux kernel, the following vulnerability has been resolved: s390/bpf: Zero-extend bpf prog return values and kfunc arguments s390x ABI requires callers to zero-extend unsigned arguments and ...
How severe is CVE-2026-53110?
CVE-2026-53110 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-53110?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.