CVE-2022-48670

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Source
https://cve.org/CVERecord?id=CVE-2022-48670
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-48670.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2022-48670
Downstream
Published
2024-05-03T14:49:54.401Z
Modified
2026-03-11T00:48:29.755622Z
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
peci: cpu: Fix use-after-free in adev_release()
Details

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

peci: cpu: Fix use-after-free in adev_release()

When auxiliarydeviceadd() returns an error, auxiliarydeviceuninit() is called, which causes refcount for device to be decremented and .release callback will be triggered.

Because adevrelease() re-calls auxiliarydeviceuninit(), it will cause use-after-free: [ 1269.455172] WARNING: CPU: 0 PID: 14267 at lib/refcount.c:28 refcountwarnsaturate+0x110/0x15 [ 1269.464007] refcountt: underflow; use-after-free.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/48xxx/CVE-2022-48670.json",
    "cna_assigner": "Linux"
}
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
6523d3b2ffa238ac033c34a726617061d6a744aa
Fixed
c87f1f99e26ea4ae08cabe753ae98e5626bdba89
Fixed
1c11289b34ab67ed080bbe0f1855c4938362d9cf

Affected versions

v5.*
v5.17
v5.17-rc3
v5.17-rc4
v5.17-rc5
v5.17-rc6
v5.17-rc7
v5.17-rc8
v5.18
v5.18-rc1
v5.18-rc2
v5.18-rc3
v5.18-rc4
v5.18-rc5
v5.18-rc6
v5.18-rc7
v5.19
v5.19-rc1
v5.19-rc2
v5.19-rc3
v5.19-rc4
v5.19-rc5
v5.19-rc6
v5.19-rc7
v5.19-rc8
v5.19.1
v5.19.2
v5.19.3
v5.19.4
v5.19.5
v5.19.6
v5.19.7
v5.19.8
v5.19.9
v6.*
v6.0-rc1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-48670.json"
vanir_signatures 
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        "deprecated": false,
        "signature_version": "v1",
        "digest": {
            "function_hash": "135383396929270487917349302842651548806",
            "length": 84.0
        },
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@1c11289b34ab67ed080bbe0f1855c4938362d9cf",
        "signature_type": "Function",
        "id": "CVE-2022-48670-7e5dc146",
        "target": {
            "file": "drivers/peci/cpu.c",
            "function": "unregister_adev"
        }
    },
    {
        "deprecated": false,
        "signature_version": "v1",
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        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@1c11289b34ab67ed080bbe0f1855c4938362d9cf",
        "signature_type": "Line",
        "id": "CVE-2022-48670-9a56b02a",
        "target": {
            "file": "drivers/peci/cpu.c"
        }
    },
    {
        "deprecated": false,
        "signature_version": "v1",
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        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@1c11289b34ab67ed080bbe0f1855c4938362d9cf",
        "signature_type": "Function",
        "id": "CVE-2022-48670-a6b0a31f",
        "target": {
            "file": "drivers/peci/cpu.c",
            "function": "adev_release"
        }
    }
]