01 Record

CVE-2026-74338

bpf: Reject sleepable BPF_LSM_CGROUP programs at load time

HighPUBLISHEDCNA: Linux

CNA base score7.8 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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02 Description

bpf: Reject sleepable BPF_LSM_CGROUP programs at load time

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.18% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 7.9% of scored records. A rank, not a probability.

NVD base score

7.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

NVD analysis status

Received. NVD last modified this record on 2026-10-21.

Red Hat severity

Low. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2026-08-15 05:58Z2 MO AGO

Last updated

2026-10-21 12:45Z8 DAYS AGO

Reserved

2026-08-15

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.8)

CNA CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-663Use of a Non-reentrant Function in a Concurrent ContextBase

Data version

5.2

Document digest

b0c614a75746f6b255f341f238b005defbdc1f56b5c22a1ce4813c4d3bf9e4b9

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux69fd337a975c7e690dfe49d9cb4fe5ba1e6db44e to < f0a49d16804d319774388a32d8cdcef319a9e481, 69fd337a975c7e690dfe49d9cb4fe5ba1e6db44e to < 4b9d8bdeb19e709f9bc3c317d48b0c0add3b2b1d, 69fd337a975c7e690dfe49d9cb4fe5ba1e6db44e to < b4059a1f57eff3e206d44697f64ad81076512760, 69fd337a975c7e690dfe49d9cb4fe5ba1e6db44e to < be9eaf2bb5db4ad3de61ef739fd268fd7f135737, 69fd337a975c7e690dfe49d9cb4fe5ba1e6db44e to < 5b038319be442c620f774e6fc9e9283deeca1c75, 6.0—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/f0a49d16804d319774388a32d8cdcef319a9e481
git.kernel.orghttps://git.kernel.org/stable/c/4b9d8bdeb19e709f9bc3c317d48b0c0add3b2b1d
git.kernel.orghttps://git.kernel.org/stable/c/b4059a1f57eff3e206d44697f64ad81076512760
git.kernel.orghttps://git.kernel.org/stable/c/be9eaf2bb5db4ad3de61ef739fd268fd7f135737
git.kernel.orghttps://git.kernel.org/stable/c/5b038319be442c620f774e6fc9e9283deeca1c75

07 Fixed in

Debian 12

linux
No fix yet

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

linux
No fix yet

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

linux
Fixed in 7.1.5-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.