CVE-2023-53206

Source
https://cve.org/CVERecord?id=CVE-2023-53206
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-53206.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2023-53206
Downstream
Related
Published
2025-09-15T14:21:34.551Z
Modified
2026-02-20T08:54:08.867855Z
Summary
hwmon: (pmbus_core) Fix NULL pointer dereference
Details

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

hwmon: (pmbus_core) Fix NULL pointer dereference

Pass i2cclient to _pmbusis_enabled to drop the assumption that a regulator device is passed in.

This will fix the issue of a NULL pointer dereference when called from pmbusget_flags.

Database specific
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53206.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
df5f6b6af01ca326dd4babb287c9580fed0ad3d6
Fixed
7444253cacd92412bc8d33d1c9b5401f52cdf0e2
Fixed
0bd66784274a287beada2933c2c0fa3a0ddae0d7

Affected versions

v6.*
v6.3
v6.3-rc6
v6.3-rc7
v6.4
v6.4-rc1
v6.4-rc2
v6.4-rc3
v6.4-rc4
v6.4-rc5
v6.4-rc6
v6.4-rc7
v6.4.1
v6.4.2
v6.4.3
v6.4.4
v6.4.5
v6.4.6
v6.4.7
v6.5-rc1

Database specific

source
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-53206.json"
vanir_signatures
[
    {
        "id": "CVE-2023-53206-027bbc28",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@7444253cacd92412bc8d33d1c9b5401f52cdf0e2",
        "target": {
            "file": "drivers/hwmon/pmbus/pmbus_core.c",
            "function": "_pmbus_is_enabled"
        },
        "digest": {
            "function_hash": "122515169968632397398262287579390325282",
            "length": 240.0
        },
        "signature_version": "v1",
        "deprecated": false,
        "signature_type": "Function"
    },
    {
        "id": "CVE-2023-53206-219e7978",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@0bd66784274a287beada2933c2c0fa3a0ddae0d7",
        "target": {
            "file": "drivers/hwmon/pmbus/pmbus_core.c",
            "function": "_pmbus_is_enabled"
        },
        "digest": {
            "function_hash": "122515169968632397398262287579390325282",
            "length": 240.0
        },
        "signature_version": "v1",
        "deprecated": false,
        "signature_type": "Function"
    },
    {
        "id": "CVE-2023-53206-3549d2ca",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@7444253cacd92412bc8d33d1c9b5401f52cdf0e2",
        "target": {
            "file": "drivers/hwmon/pmbus/pmbus_core.c",
            "function": "pmbus_regulator_is_enabled"
        },
        "digest": {
            "function_hash": "309569775504493358409466374061378203135",
            "length": 105.0
        },
        "signature_version": "v1",
        "deprecated": false,
        "signature_type": "Function"
    },
    {
        "id": "CVE-2023-53206-6caf1af8",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@0bd66784274a287beada2933c2c0fa3a0ddae0d7",
        "target": {
            "file": "drivers/hwmon/pmbus/pmbus_core.c",
            "function": "pmbus_is_enabled"
        },
        "digest": {
            "function_hash": "260264401841046625227227776105031652485",
            "length": 267.0
        },
        "signature_version": "v1",
        "deprecated": false,
        "signature_type": "Function"
    },
    {
        "id": "CVE-2023-53206-85e455eb",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@0bd66784274a287beada2933c2c0fa3a0ddae0d7",
        "target": {
            "file": "drivers/hwmon/pmbus/pmbus_core.c",
            "function": "pmbus_regulator_is_enabled"
        },
        "digest": {
            "function_hash": "309569775504493358409466374061378203135",
            "length": 105.0
        },
        "signature_version": "v1",
        "deprecated": false,
        "signature_type": "Function"
    },
    {
        "id": "CVE-2023-53206-9d9f086c",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@7444253cacd92412bc8d33d1c9b5401f52cdf0e2",
        "target": {
            "file": "drivers/hwmon/pmbus/pmbus_core.c",
            "function": "pmbus_is_enabled"
        },
        "digest": {
            "function_hash": "260264401841046625227227776105031652485",
            "length": 267.0
        },
        "signature_version": "v1",
        "deprecated": false,
        "signature_type": "Function"
    },
    {
        "id": "CVE-2023-53206-b2ecba9e",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@0bd66784274a287beada2933c2c0fa3a0ddae0d7",
        "target": {
            "file": "drivers/hwmon/pmbus/pmbus_core.c"
        },
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "162011399823541729310289670491414711207",
                "46443681773573051665124158852186141107",
                "188182373939596452688792173021441062208",
                "169011238730459296795812358265764847721",
                "92956027915938842564418508603199196240",
                "237996880423560094688642344131801948015",
                "267713653969691371334906055109041429127",
                "121491191160861130751337302006711279816",
                "61874221015798247926607921450484705975",
                "32929218754085481191335252489793493050",
                "205166941142085930656467101051527526990",
                "213459769847041265334992722624470017133",
                "204455486426283693473758810929538431660",
                "140103340596638078292183625491455633956",
                "49078538644439166096182138122788429909",
                "244805003788774396408050574196891315315",
                "101000031265209091930645398335487724718",
                "209433929002833726693185695435129588144",
                "233958281924267163074303127601256579213",
                "133370152792888835991072205375600392500",
                "259169676997202406866823750418636447768",
                "332995935606225317804303700455809966283",
                "258591526438098398513384182897188027380",
                "27713316841378870685006231595673822279"
            ]
        },
        "signature_version": "v1",
        "deprecated": false,
        "signature_type": "Line"
    },
    {
        "id": "CVE-2023-53206-c2bb1692",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@7444253cacd92412bc8d33d1c9b5401f52cdf0e2",
        "target": {
            "file": "drivers/hwmon/pmbus/pmbus_core.c"
        },
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "162011399823541729310289670491414711207",
                "46443681773573051665124158852186141107",
                "188182373939596452688792173021441062208",
                "169011238730459296795812358265764847721",
                "92956027915938842564418508603199196240",
                "237996880423560094688642344131801948015",
                "267713653969691371334906055109041429127",
                "121491191160861130751337302006711279816",
                "61874221015798247926607921450484705975",
                "32929218754085481191335252489793493050",
                "205166941142085930656467101051527526990",
                "213459769847041265334992722624470017133",
                "204455486426283693473758810929538431660",
                "140103340596638078292183625491455633956",
                "49078538644439166096182138122788429909",
                "244805003788774396408050574196891315315",
                "101000031265209091930645398335487724718",
                "209433929002833726693185695435129588144",
                "233958281924267163074303127601256579213",
                "133370152792888835991072205375600392500",
                "259169676997202406866823750418636447768",
                "332995935606225317804303700455809966283",
                "258591526438098398513384182897188027380",
                "27713316841378870685006231595673822279"
            ]
        },
        "signature_version": "v1",
        "deprecated": false,
        "signature_type": "Line"
    }
]

Git / github.com/gregkh/linux

Affected ranges

Type
GIT
Repo
https://github.com/gregkh/linux
Events

Affected versions

v6.*
v6.4
v6.4.1
v6.4.2
v6.4.3
v6.4.4
v6.4.5
v6.4.6
v6.4.7

Database specific

source
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-53206.json"