01 Record

CVE-2022-49030

libbpf: Handle size overflow for ringbuf mmap

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

View raw JSON

02 Description

libbpf: Handle size overflow for ringbuf mmap

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 ImpactpartialSuccessful exploitation gives limited 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

0.28% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 19.9% 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

Modified. NVD last modified this record on 2026-08-04.

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

2024-10-21 20:06Z1 YR AGO

Last updated

2026-08-05 08:53Z1 MO AGO

Reserved

2024-08-22

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-190Integer Overflow or WraparoundBase

Data version

5.2

Document digest

31e1950cdeb3a58eb3184f80f71c3cbbb9c0db6513fb5db7cd043796ef911964

05 Affected products

VendorProductVersionsPlatforms

LinuxLinuxbf99c936f9478a05d51e9f101f90de70bee9a89c to < 8a549ab6724520aa3c07f47e0eba820293551490, bf99c936f9478a05d51e9f101f90de70bee9a89c to < 0140e079a42064680394fff1199a7b5483688dec, bf99c936f9478a05d51e9f101f90de70bee9a89c to < 535a25ab4f9a45f74ba38ab71de95e97474922ed, bf99c936f9478a05d51e9f101f90de70bee9a89c to < 927cbb478adf917e0a142b94baa37f06279cc466, 5.8—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/8a549ab6724520aa3c07f47e0eba820293551490
git.kernel.orghttps://git.kernel.org/stable/c/0140e079a42064680394fff1199a7b5483688dec
git.kernel.orghttps://git.kernel.org/stable/c/535a25ab4f9a45f74ba38ab71de95e97474922ed
git.kernel.orghttps://git.kernel.org/stable/c/927cbb478adf917e0a142b94baa37f06279cc466

01 Record index

CVE-2022-49030

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2022-49030

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References