CVE-2022-49323
iommu/arm-smmu: fix possible null-ptr-deref in arm_smmu_device_probe()
- Published
- Updated
- Reserved
- Assigned by
- Linux
Description
In the Linux kernel, the following vulnerability has been resolved: iommu/arm-smmu: fix possible null-ptr-deref in arm_smmu_device_probe() It will cause null-ptr-deref when using 'res', if platform_get_resource() returns NULL, so move using 'res' after devm_ioremap_resource() that will check it to avoid null-ptr-deref. And use devm_platform_get_and_ioremap_resource() to simplify code.
Timeline
ID reserved
By Linux
Published
- 15 months later
· 15 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.28% · top 80% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Weakness
Affected products
- affected 9648cbc9625b67c91ed1aaf4b8b77f3f0c537496 – < 3660db29b0305f9a1d95979c7af0f5db6ea99f5d
- affected 9648cbc9625b67c91ed1aaf4b8b77f3f0c537496 – < 98dd53a92825747395649f54d23512a13c3ed471
- affected 9648cbc9625b67c91ed1aaf4b8b77f3f0c537496 – < 80776a71340f57d6a4952635fc89f0342072f3ca
- affected 9648cbc9625b67c91ed1aaf4b8b77f3f0c537496 – < 449fc4561762ad9ad85362d5f01f0d0df397457a
- affected 9648cbc9625b67c91ed1aaf4b8b77f3f0c537496 – < d9ed8af1dee37f181096631fb03729ece98ba816
- affected 4.11
- unaffected < 4.11
- unaffected 5.10.122 – ≤ 5.10.*
- unaffected 5.15.47 – ≤ 5.15.*
- unaffected 5.17.15 – ≤ 5.17.*
- unaffected 5.18.4 – ≤ 5.18.*
- unaffected 5.19 – ≤ *
References (5)
- https://git.kernel.org/stable/c/3660db29b0305f9a1d95979c7af0f5db6ea99f5d (opens in a new tab)
- https://git.kernel.org/stable/c/98dd53a92825747395649f54d23512a13c3ed471 (opens in a new tab)
- https://git.kernel.org/stable/c/80776a71340f57d6a4952635fc89f0342072f3ca (opens in a new tab)
- https://git.kernel.org/stable/c/449fc4561762ad9ad85362d5f01f0d0df397457a (opens in a new tab)
- https://git.kernel.org/stable/c/d9ed8af1dee37f181096631fb03729ece98ba816 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2022-49323)Record last updated .