CVE-2022-49426

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Source
https://nvd.nist.gov/vuln/detail/CVE-2022-49426
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49426.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2022-49426
Downstream
Related
Published
2025-02-26T02:12:47Z
Modified
2025-10-21T10:06:33.560340Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
iommu/arm-smmu-v3-sva: Fix mm use-after-free
Details

In the Linux kernel, the following vulnerability has been resolved:

iommu/arm-smmu-v3-sva: Fix mm use-after-free

We currently call arm64mmcontext_put() without holding a reference to the mm, which can result in use-after-free. Call mmgrab()/mmdrop() to ensure the mm only gets freed after we unpinned the ASID.

References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
32784a9562fb0518b12e9797ee2aec52214adf6f
Fixed
fc90f13ea0dcd960e5002d204fa55cec4e0db2fa
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
32784a9562fb0518b12e9797ee2aec52214adf6f
Fixed
e3cbbdbff8a4db5d053c53fd71be62ccccdb52b0
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
32784a9562fb0518b12e9797ee2aec52214adf6f
Fixed
9aa215450888cf29af0c479e14a712dc6b0c506c
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
32784a9562fb0518b12e9797ee2aec52214adf6f
Fixed
cbd23144f7662b00bcde32a938c4a4057e476d68

Affected versions

v5.*

v5.10
v5.10-rc4
v5.10-rc5
v5.10-rc6
v5.10-rc7
v5.11
v5.11-rc1
v5.11-rc2
v5.11-rc3
v5.11-rc4
v5.11-rc5
v5.11-rc6
v5.11-rc7
v5.12
v5.12-rc1
v5.12-rc1-dontuse
v5.12-rc2
v5.12-rc3
v5.12-rc4
v5.12-rc5
v5.12-rc6
v5.12-rc7
v5.12-rc8
v5.13
v5.13-rc1
v5.13-rc2
v5.13-rc3
v5.13-rc4
v5.13-rc5
v5.13-rc6
v5.13-rc7
v5.14
v5.14-rc1
v5.14-rc2
v5.14-rc3
v5.14-rc4
v5.14-rc5
v5.14-rc6
v5.14-rc7
v5.15
v5.15-rc1
v5.15-rc2
v5.15-rc3
v5.15-rc4
v5.15-rc5
v5.15-rc6
v5.15-rc7
v5.15.1
v5.15.10
v5.15.11
v5.15.12
v5.15.13
v5.15.14
v5.15.15
v5.15.16
v5.15.17
v5.15.18
v5.15.19
v5.15.2
v5.15.20
v5.15.21
v5.15.22
v5.15.23
v5.15.24
v5.15.25
v5.15.26
v5.15.27
v5.15.28
v5.15.29
v5.15.3
v5.15.30
v5.15.31
v5.15.32
v5.15.33
v5.15.34
v5.15.35
v5.15.36
v5.15.37
v5.15.38
v5.15.39
v5.15.4
v5.15.40
v5.15.41
v5.15.42
v5.15.43
v5.15.44
v5.15.45
v5.15.5
v5.15.6
v5.15.7
v5.15.8
v5.15.9
v5.16
v5.16-rc1
v5.16-rc2
v5.16-rc3
v5.16-rc4
v5.16-rc5
v5.16-rc6
v5.16-rc7
v5.16-rc8
v5.17
v5.17-rc1
v5.17-rc2
v5.17-rc3
v5.17-rc4
v5.17-rc5
v5.17-rc6
v5.17-rc7
v5.17-rc8
v5.17.1
v5.17.10
v5.17.11
v5.17.12
v5.17.13
v5.17.2
v5.17.3
v5.17.4
v5.17.5
v5.17.6
v5.17.7
v5.17.8
v5.17.9
v5.18
v5.18-rc1
v5.18-rc2
v5.18-rc3
v5.18-rc4
v5.18-rc5
v5.18-rc6
v5.18-rc7
v5.18.1
v5.18.2

Database specific

vanir_signatures

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        "target": {
            "function": "arm_smmu_alloc_shared_cd",
            "file": "drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-sva.c"
        },
        "digest": {
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        },
        "deprecated": false,
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        "signature_type": "Function",
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        "target": {
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        },
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        "deprecated": false,
        "id": "CVE-2022-49426-094738cd",
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    {
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        "target": {
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            "file": "drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-sva.c"
        },
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        },
        "deprecated": false,
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        "digest": {
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        "deprecated": false,
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        "target": {
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        },
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        "signature_type": "Function",
        "signature_version": "v1"
    }
]

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.46
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
5.17.14
Type
ECOSYSTEM
Events
Introduced
5.18.0
Fixed
5.18.3