01 Record

CVE-2021-47485

IB/qib: Protect from buffer overflow in struct qib_user_sdma_pkt fields

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

IB/qib: Protect from buffer overflow in struct qib_user_sdma_pkt fields

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

0.24% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 14.8% 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

2024-05-22 08:19Z2 YR AGO

Last updated

2026-08-05 08:48Z1 MO AGO

Reserved

2024-05-22

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-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')Base

Data version

5.2

Document digest

a9724f14a13a538580f0ccf3856cc07a9cf2386977dbff69a2578eb3aa13bb10

05 Affected products

VendorProductVersionsPlatforms

LinuxLinuxf931551bafe1f10ded7f5282e2aa162c267a2e5d to < bda41654b6e0c125a624ca35d6d20beb8015b5d0, f931551bafe1f10ded7f5282e2aa162c267a2e5d to < 3f57c3f67fd93b4da86aeffea1ca32c484d054ad, f931551bafe1f10ded7f5282e2aa162c267a2e5d to < 60833707b968d5ae02a75edb7886dcd4a957cf0d, f931551bafe1f10ded7f5282e2aa162c267a2e5d to < 73d2892148aa4397a885b4f4afcfc5b27a325c42, f931551bafe1f10ded7f5282e2aa162c267a2e5d to < 0f8cdfff06829a0b0348b6debc29ff6a61967724, f931551bafe1f10ded7f5282e2aa162c267a2e5d to < c3e17e58f571f34c51aeb17274ed02c2ed5cf780, f931551bafe1f10ded7f5282e2aa162c267a2e5d to < 0d4395477741608d123dad51def9fe50b7ebe952, f931551bafe1f10ded7f5282e2aa162c267a2e5d to < d39bf40e55e666b5905fdbd46a0dced030ce87be, 2.6.35—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/bda41654b6e0c125a624ca35d6d20beb8015b5d0
git.kernel.orghttps://git.kernel.org/stable/c/3f57c3f67fd93b4da86aeffea1ca32c484d054ad
git.kernel.orghttps://git.kernel.org/stable/c/60833707b968d5ae02a75edb7886dcd4a957cf0d
git.kernel.orghttps://git.kernel.org/stable/c/73d2892148aa4397a885b4f4afcfc5b27a325c42
git.kernel.orghttps://git.kernel.org/stable/c/0f8cdfff06829a0b0348b6debc29ff6a61967724
git.kernel.orghttps://git.kernel.org/stable/c/c3e17e58f571f34c51aeb17274ed02c2ed5cf780
git.kernel.orghttps://git.kernel.org/stable/c/0d4395477741608d123dad51def9fe50b7ebe952
git.kernel.orghttps://git.kernel.org/stable/c/d39bf40e55e666b5905fdbd46a0dced030ce87be

01 Record index

CVE-2021-47485

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2021-47485

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References