Linux Kernel up to 6.17.8 bpf net/core/skbuff.c bpf_prog_run_data_pointers privilege escalation

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 5.15.196/6.1.158/6.6.116/6.12.58/6.17.8 and classified as critical. Affected by this vulnerability is the function bpf_prog_run_data_pointers of the file net/core/skbuff.c of the component bpf. The manipulation results in an unknown weakness. This vulnerability is reported as CVE-2025-68200. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 5.15.196/6.1.158/6.6.116/6.12.58/6.17.8. It has been classified as critical. Affected is the function bpf_prog_run_data_pointers of the file net/core/skbuff.c of the component bpf. The impact remains unknown. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: bpf: Add bpf_prog_run_data_pointers() syzbot found that cls_bpf_classify() is able to change tc_skb_cb(skb)->drop_reason triggering a warning in sk_skb_reason_drop(). WARNING: CPU: 0 PID: 5965 at net/core/skbuff.c:1192 __sk_skb_reason_drop net/core/skbuff.c:1189 [inline] WARNING: CPU: 0 PID: 5965 at net/core/skbuff.c:1192 sk_skb_reason_drop+0x76/0x170 net/core/skbuff.c:1214 struct tc_skb_cb has been added in commit ec624fe740b4 ("net/sched: Extend qdisc control block with tc control block"), which added a wrong interaction with db58ba459202 ("bpf: wire in data and data_end for cls_act_bpf"). drop_reason was added later. Add bpf_prog_run_data_pointers() helper to save/restore the net_sched storage colliding with BPF data_meta/data_end.

The advisory is shared for download at git.kernel.org. This vulnerability is traded as CVE-2025-68200 since 12/16/2025. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 02/21/2026).

The vulnerability scanner Nessus provides a plugin with the ID 282382 (Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2025-1350)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.15.197, 6.1.159, 6.6.117, 6.12.59 or 6.17.9 eliminates this vulnerability. Applying the patch c4cdd143c35974a2cedd000fa9eb3accc3023b20/5e149d8a8e732126fb6014efd60075cf63a73f91/baa61dcaa50b7141048c8d2aede7fe9ed8f21d11/6392e5f4b1a3cce10e828309baf35d22abd3457d/8dd2fe5f5d586c8e87307b7a271f6b994afcc006/4ef92743625818932b9c320152b58274c05e5053 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (282382) and CERT Bund (WID-SEC-2025-2868). Once again VulDB remains the best source for vulnerability data.

Affected

  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • SUSE openSUSE
  • RESF Rocky Linux
  • Open Source Linux Kernel

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
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: Privilege escalation
CWE: Unknown
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 282382
Nessus Name: Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2025-1350)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 5.15.197/6.1.159/6.6.117/6.12.59/6.17.9
Patch: c4cdd143c35974a2cedd000fa9eb3accc3023b20/5e149d8a8e732126fb6014efd60075cf63a73f91/baa61dcaa50b7141048c8d2aede7fe9ed8f21d11/6392e5f4b1a3cce10e828309baf35d22abd3457d/8dd2fe5f5d586c8e87307b7a271f6b994afcc006/4ef92743625818932b9c320152b58274c05e5053

Timelineinfo

12/16/2025 Advisory disclosed
12/16/2025 +0 days CVE reserved
12/16/2025 +0 days VulDB entry created
02/21/2026 +67 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2025-68200 (🔒)
GCVE (CVE): GCVE-0-2025-68200
GCVE (VulDB): GCVE-100-336732
CERT Bund: WID-SEC-2025-2868 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 12/16/2025 15:56
Updated: 02/21/2026 13:28
Changes: 12/16/2025 15:56 (59), 01/09/2026 06:23 (2), 01/19/2026 22:57 (7), 02/03/2026 04:50 (1), 02/21/2026 13:28 (1)
Complete: 🔍
Cache ID: 216::103

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