Linux Kernel up to 7.1.4 BPF __get_user privileges management

CVSS Meta Temp Score
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CTI Interest Score
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9.5$5k-$25k0.83

Summaryinfo

A vulnerability classified as very critical has been found in Linux Kernel up to 6.1.177/6.6.144/6.12.96/6.18.39/7.1.4. This affects the function __get_user of the component BPF. This manipulation causes privileges management. This vulnerability is registered as CVE-2026-80865. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability has been found in Linux Kernel up to 6.1.177/6.6.144/6.12.96/6.18.39/7.1.4 and classified as very critical. Affected by this vulnerability is the function __get_user of the component BPF. The manipulation with an unknown input leads to a privileges management vulnerability. The CWE definition for the vulnerability is CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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]/

It is possible to read the advisory at git.kernel.org. This vulnerability is known as CVE-2026-80865 since 08/26/2026. The exploitation appears to be easy. The attack can be launched remotely. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 09/04/2026). The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

Upgrading to version 6.1.178, 6.6.145, 6.12.97, 6.18.40 or 7.1.5 eliminates this vulnerability. Applying the patch a67f7f9647cb243b3be32163e88e5bc76e3d51e9/8b719cef5ac30ab83ce5693c5faf10e4944874af/128391b57e0977c35243672a6f970073651f3831/0b6252afcd1965f77c6a6f8a802a2e1381822b98/28ce7bcf8a29aa395b60764df4c97be745de89d0/d5dc200c3a3f217de072af269dd90adddf90e48d is able to eliminate this problem.

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Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.9
VulDB Meta Temp Score: 9.5

VulDB Base Score: 9.9
VulDB Temp Score: 9.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Privileges management
CWE: CWE-269 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.1.178/6.6.145/6.12.97/6.18.40/7.1.5
Patch: a67f7f9647cb243b3be32163e88e5bc76e3d51e9/8b719cef5ac30ab83ce5693c5faf10e4944874af/128391b57e0977c35243672a6f970073651f3831/0b6252afcd1965f77c6a6f8a802a2e1381822b98/28ce7bcf8a29aa395b60764df4c97be745de89d0/d5dc200c3a3f217de072af269dd90adddf90e48d

Timelineinfo

08/26/2026 CVE reserved
09/04/2026 +9 days Advisory disclosed
09/04/2026 +0 days VulDB entry created
09/04/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-80865 (🔒)
GCVE (CVE): GCVE-0-2026-80865
GCVE (VulDB): GCVE-100-399055

Entryinfo

Created: 09/04/2026 19:11
Changes: 09/04/2026 19:11 (59)
Complete: 🔍
Cache ID: 216::103

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