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CVE-2026-80865

Unknown

Last modified

CVE-2026-80865 is a vulnerability of currently unknown severity. In the Linux kernel, the following vulnerability has been resolved: bpf: Add missing access_ok call to copy_user_syms As reported by sashiko we use __get_user without prior access_ok call on the user space pointer. Adding the missing call for the whole pointer array. Plus removing the err check in the error path, because it's not needed and also we can return -ENOMEM directly from the first kvmalloc_array fail path. [1] https://lore.kernel.org/bpf/20260611115503.AC16D1F00893@smtp.kernel.org/.

Description

In the Linux kernel, the following vulnerability has been resolved: bpf: Add missing access_ok call to copy_user_syms As reported by sashiko we use __get_user without prior access_ok call on the user space pointer. Adding the missing call for the whole pointer array. Plus removing the err check in the error path, because it's not needed and also we can return -ENOMEM directly from the first kvmalloc_array fail path. [1] https://lore.kernel.org/bpf/20260611115503.AC16D1F00893@smtp.kernel.org/

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 0236fec57a15dc2a068dfe4488e0c2ab4559b1ec, < a67f7f9647cb243b3be32163e88e5bc76e3d51e9; >= 0236fec57a15dc2a068dfe4488e0c2ab4559b1ec, < 8b719cef5ac30ab83ce5693c5faf10e4944874af; >= 0236fec57a15dc2a068dfe4488e0c2ab4559b1ec, < 128391b57e0977c35243672a6f970073651f3831; >= 0236fec57a15dc2a068dfe4488e0c2ab4559b1ec, < 0b6252afcd1965f77c6a6f8a802a2e1381822b98; >= 0236fec57a15dc2a068dfe4488e0c2ab4559b1ec, < 28ce7bcf8a29aa395b60764df4c97be745de89d0; >= 0236fec57a15dc2a068dfe4488e0c2ab4559b1ec, < d5dc200c3a3f217de072af269dd90adddf90e48d
LinuxLinux5.19

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-80865?
In the Linux kernel, the following vulnerability has been resolved: bpf: Add missing access_ok call to copy_user_syms As reported by sashiko we use __get_user without prior access_ok call on the user space pointer. Adding the missing call for the whole pointer array. Plus removing the err check in the error path, because it's not needed and also we can return -ENOMEM directly from the first kvmalloc_array fail path. [1] https://lore.kernel.org/bpf/20260611115503.AC16D1F00893@smtp.kernel.org/
How severe is CVE-2026-80865?
Severity scoring for CVE-2026-80865 is pending analysis.
How do I fix CVE-2026-80865?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST