CVE-2026-80865
bpf: Add missing access_ok call to copy_user_syms
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/[email protected]/
INFO
Published Date :
Sept. 4, 2026, 5:16 p.m.
Last Modified :
Sept. 4, 2026, 5:16 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products
The following products are affected by CVE-2026-80865
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Apply the Linux kernel patch.
- Update the kernel to the latest secure version.
- Verify the fix is correctly implemented.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-80865.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-80865 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-80865
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-80865 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-80865 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Sep. 04, 2026
Action Type Old Value New Value Added 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/[email protected]/ Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/80xxx/CVE-2026-80865.json">CVE-2026-80865</a> Added Reference https://git.kernel.org/stable/c/0b6252afcd1965f77c6a6f8a802a2e1381822b98 Added Reference https://git.kernel.org/stable/c/128391b57e0977c35243672a6f970073651f3831 Added Reference https://git.kernel.org/stable/c/28ce7bcf8a29aa395b60764df4c97be745de89d0 Added Reference https://git.kernel.org/stable/c/8b719cef5ac30ab83ce5693c5faf10e4944874af Added Reference https://git.kernel.org/stable/c/a67f7f9647cb243b3be32163e88e5bc76e3d51e9 Added Reference https://git.kernel.org/stable/c/d5dc200c3a3f217de072af269dd90adddf90e48d