01 Record

CVE-2022-49323

iommu/arm-smmu: fix possible null-ptr-deref in arm_smmu_device_probe()

MediumPUBLISHEDCNA: Linux

CNA base score5.5 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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02 Description

iommu/arm-smmu: fix possible null-ptr-deref in arm_smmu_device_probe()

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 20.0% of scored records. A rank, not a probability.

NVD base score

5.5 (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:N/I:N/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. 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

2025-02-26 02:10Z1 YR AGO

Last updated

2026-05-11 18:57Z3 MO AGO

Reserved

2025-02-26

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Medium (CVSS 5.5)

CNA CVSS vector

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

Weaknesses

CWE-476NULL Pointer DereferenceBase

Data version

5.2

Document digest

ba22de65fc770665d8f97b815a73980a2380113747f6c96a6f7efae8df0a28a9

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux9648cbc9625b67c91ed1aaf4b8b77f3f0c537496 to < 3660db29b0305f9a1d95979c7af0f5db6ea99f5d, 9648cbc9625b67c91ed1aaf4b8b77f3f0c537496 to < 98dd53a92825747395649f54d23512a13c3ed471, 9648cbc9625b67c91ed1aaf4b8b77f3f0c537496 to < 80776a71340f57d6a4952635fc89f0342072f3ca, 9648cbc9625b67c91ed1aaf4b8b77f3f0c537496 to < 449fc4561762ad9ad85362d5f01f0d0df397457a, 9648cbc9625b67c91ed1aaf4b8b77f3f0c537496 to < d9ed8af1dee37f181096631fb03729ece98ba816, 4.11—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/3660db29b0305f9a1d95979c7af0f5db6ea99f5d
git.kernel.orghttps://git.kernel.org/stable/c/98dd53a92825747395649f54d23512a13c3ed471
git.kernel.orghttps://git.kernel.org/stable/c/80776a71340f57d6a4952635fc89f0342072f3ca
git.kernel.orghttps://git.kernel.org/stable/c/449fc4561762ad9ad85362d5f01f0d0df397457a
git.kernel.orghttps://git.kernel.org/stable/c/d9ed8af1dee37f181096631fb03729ece98ba816

01 Record index

CVE-2022-49323

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2022-49323

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References