CVE-2022-49805

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Source
https://cve.org/CVERecord?id=CVE-2022-49805
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49805.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2022-49805
Downstream
Published
2025-05-01T14:09:32.227Z
Modified
2026-03-11T07:27:45.239972Z
Summary
net: lan966x: Fix potential null-ptr-deref in lan966x_stats_init()
Details

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

net: lan966x: Fix potential null-ptr-deref in lan966xstatsinit()

lan966xstatsinit() calls createsinglethreadworkqueue() and not checked the ret value, which may return NULL. And a null-ptr-deref may happen:

lan966xstatsinit() createsinglethreadworkqueue() # failed, lan966x->statsqueue is NULL queuedelayedwork() queuedelayedworkon() __queuedelayedwork() # warning here, but continue _queuework() # access wq->flags, null-ptr-deref

Check the ret value and return -ENOMEM if it is NULL.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49805.json"
}
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
12c2d0a5b8e2a1afc8c7738e19a0d1dd7f3d4007
Fixed
4a43c1c6040e848e1344c7b16ac696b68fbc439c
Fixed
ba86af3733aece88dbcee0dfebf7e2dcfefb2be4

Affected versions

v5.*
v5.16
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
v5.18
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
v6.*
v6.0
v6.0-rc1
v6.0-rc2
v6.0-rc3
v6.0-rc4
v6.0-rc5
v6.0-rc6
v6.0-rc7
v6.0.1
v6.0.2
v6.0.3
v6.0.4
v6.0.5
v6.0.6
v6.0.7
v6.0.8
v6.0.9
v6.1-rc1
v6.1-rc2
v6.1-rc3
v6.1-rc4

Database specific

vanir_signatures 
[
    {
        "signature_type": "Function",
        "deprecated": false,
        "id": "CVE-2022-49805-0a61eb44",
        "target": {
            "file": "drivers/net/ethernet/microchip/lan966x/lan966x_ethtool.c",
            "function": "lan966x_stats_init"
        },
        "digest": {
            "length": 642.0,
            "function_hash": "53355092333940554467092622200458389667"
        },
        "signature_version": "v1",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@ba86af3733aece88dbcee0dfebf7e2dcfefb2be4"
    },
    {
        "signature_type": "Line",
        "deprecated": false,
        "id": "CVE-2022-49805-4cd0a748",
        "target": {
            "file": "drivers/net/ethernet/microchip/lan966x/lan966x_ethtool.c"
        },
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "186348251930749788508193481077585204213",
                "311560325550135878829324095486591635017",
                "279363652682126468871652357503909687564",
                "291408542250250159548854052963313033541"
            ]
        },
        "signature_version": "v1",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@ba86af3733aece88dbcee0dfebf7e2dcfefb2be4"
    },
    {
        "signature_type": "Function",
        "deprecated": false,
        "id": "CVE-2022-49805-ee1b1f5b",
        "target": {
            "file": "drivers/net/ethernet/microchip/lan966x/lan966x_ethtool.c",
            "function": "lan966x_stats_init"
        },
        "digest": {
            "length": 642.0,
            "function_hash": "53355092333940554467092622200458389667"
        },
        "signature_version": "v1",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@4a43c1c6040e848e1344c7b16ac696b68fbc439c"
    },
    {
        "signature_type": "Line",
        "deprecated": false,
        "id": "CVE-2022-49805-f0af3482",
        "target": {
            "file": "drivers/net/ethernet/microchip/lan966x/lan966x_ethtool.c"
        },
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "186348251930749788508193481077585204213",
                "311560325550135878829324095486591635017",
                "279363652682126468871652357503909687564",
                "291408542250250159548854052963313033541"
            ]
        },
        "signature_version": "v1",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@4a43c1c6040e848e1344c7b16ac696b68fbc439c"
    }
]
source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49805.json"