5.5

CVE-2022-49323

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

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version < 5.10.122
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.47
Linux ≫ Linux Kernel Version >= 5.16 < 5.17.15
Linux ≫ Linux Kernel Version >= 5.18 < 5.18.4
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.27% 0.185
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
134c704f-9b21-4f2e-91b3-4a467353bcc0 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-476 NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

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