CVE-2022-48637

See a problem?
Please try reporting it to the source first.
Source
https://nvd.nist.gov/vuln/detail/CVE-2022-48637
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-48637.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2022-48637
Downstream
Related
Published
2024-04-28T12:59:33.285Z
Modified
2025-11-28T06:21:02.736582Z
Summary
bnxt: prevent skb UAF after handing over to PTP worker
Details

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

bnxt: prevent skb UAF after handing over to PTP worker

When reading the timestamp is required bnxttxint() hands over the ownership of the completed skb to the PTP worker. The skb should not be used afterwards, as the worker may run before the rest of our code and free the skb, leading to a use-after-free.

Since devkfreeskb_any() accepts NULL make the loss of ownership more obvious and set skb to NULL.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/48xxx/CVE-2022-48637.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
83bb623c968e7351aee5111547693f95f330dc5a
Fixed
08483e4c0c83b221b8891434a04cec405dee94a6
Fixed
32afa1f23e42cc635ccf4c39f24514d03d1e8338
Fixed
c31f26c8f69f776759cbbdfb38e40ea91aa0dd65

Affected versions

v5.*

v5.13
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
v5.15.46
v5.15.47
v5.15.48
v5.15.49
v5.15.5
v5.15.50
v5.15.51
v5.15.52
v5.15.53
v5.15.54
v5.15.55
v5.15.56
v5.15.57
v5.15.58
v5.15.59
v5.15.6
v5.15.60
v5.15.61
v5.15.62
v5.15.63
v5.15.64
v5.15.65
v5.15.66
v5.15.67
v5.15.68
v5.15.69
v5.15.7
v5.15.70
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
v5.18
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
v5.19.10
v5.19.11
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
v6.0-rc2
v6.0-rc3
v6.0-rc4

Database specific

vanir_signatures

[
    {
        "signature_version": "v1",
        "deprecated": false,
        "target": {
            "function": "bnxt_tx_int",
            "file": "drivers/net/ethernet/broadcom/bnxt/bnxt.c"
        },
        "digest": {
            "function_hash": "316267146830953231345712757865115956991",
            "length": 1430.0
        },
        "signature_type": "Function",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@c31f26c8f69f776759cbbdfb38e40ea91aa0dd65",
        "id": "CVE-2022-48637-2f6db6ff"
    },
    {
        "signature_version": "v1",
        "deprecated": false,
        "target": {
            "file": "drivers/net/ethernet/broadcom/bnxt/bnxt.c"
        },
        "digest": {
            "line_hashes": [
                "104024397048817195886048066335005342182",
                "284790443778023647183023086628030773705",
                "256463390621561806738783061924451896682",
                "178973642827145097871458552109606507710",
                "128281475818806806066324208203267359758",
                "90042510635901984187925405461547725578",
                "74752017746796874045016006641827514021",
                "86037422577214728037652188995176909211",
                "101536241873372552591323842081500399425",
                "12613983573845051301520873921503066784",
                "218125984698243220932452164538666447338",
                "75415621113731221555653591630853286097",
                "307750511208041638573854115958156676721",
                "73516778410270785305572103090921695764",
                "117142246519912210709046121725774768581",
                "296352532112821118888082281795943984505",
                "103926791992121011494104301141557125224",
                "112267823454468282751248264968840073785",
                "14885506329976524987742322512464190708"
            ],
            "threshold": 0.9
        },
        "signature_type": "Line",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@c31f26c8f69f776759cbbdfb38e40ea91aa0dd65",
        "id": "CVE-2022-48637-3ff7a43b"
    },
    {
        "signature_version": "v1",
        "deprecated": false,
        "target": {
            "file": "drivers/net/ethernet/broadcom/bnxt/bnxt.c"
        },
        "digest": {
            "line_hashes": [
                "104024397048817195886048066335005342182",
                "284790443778023647183023086628030773705",
                "256463390621561806738783061924451896682",
                "178973642827145097871458552109606507710",
                "128281475818806806066324208203267359758",
                "90042510635901984187925405461547725578",
                "74752017746796874045016006641827514021",
                "86037422577214728037652188995176909211",
                "101536241873372552591323842081500399425",
                "12613983573845051301520873921503066784",
                "218125984698243220932452164538666447338",
                "75415621113731221555653591630853286097",
                "307750511208041638573854115958156676721",
                "73516778410270785305572103090921695764",
                "117142246519912210709046121725774768581",
                "296352532112821118888082281795943984505",
                "103926791992121011494104301141557125224",
                "112267823454468282751248264968840073785",
                "14885506329976524987742322512464190708"
            ],
            "threshold": 0.9
        },
        "signature_type": "Line",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@08483e4c0c83b221b8891434a04cec405dee94a6",
        "id": "CVE-2022-48637-5ebbe6c9"
    },
    {
        "signature_version": "v1",
        "deprecated": false,
        "target": {
            "function": "bnxt_tx_int",
            "file": "drivers/net/ethernet/broadcom/bnxt/bnxt.c"
        },
        "digest": {
            "function_hash": "316267146830953231345712757865115956991",
            "length": 1430.0
        },
        "signature_type": "Function",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@08483e4c0c83b221b8891434a04cec405dee94a6",
        "id": "CVE-2022-48637-b02d8d10"
    },
    {
        "signature_version": "v1",
        "deprecated": false,
        "target": {
            "function": "bnxt_tx_int",
            "file": "drivers/net/ethernet/broadcom/bnxt/bnxt.c"
        },
        "digest": {
            "function_hash": "316267146830953231345712757865115956991",
            "length": 1430.0
        },
        "signature_type": "Function",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@32afa1f23e42cc635ccf4c39f24514d03d1e8338",
        "id": "CVE-2022-48637-ba6997ff"
    },
    {
        "signature_version": "v1",
        "deprecated": false,
        "target": {
            "file": "drivers/net/ethernet/broadcom/bnxt/bnxt.c"
        },
        "digest": {
            "line_hashes": [
                "104024397048817195886048066335005342182",
                "284790443778023647183023086628030773705",
                "256463390621561806738783061924451896682",
                "178973642827145097871458552109606507710",
                "128281475818806806066324208203267359758",
                "90042510635901984187925405461547725578",
                "74752017746796874045016006641827514021",
                "86037422577214728037652188995176909211",
                "101536241873372552591323842081500399425",
                "12613983573845051301520873921503066784",
                "218125984698243220932452164538666447338",
                "75415621113731221555653591630853286097",
                "307750511208041638573854115958156676721",
                "73516778410270785305572103090921695764",
                "117142246519912210709046121725774768581",
                "296352532112821118888082281795943984505",
                "103926791992121011494104301141557125224",
                "112267823454468282751248264968840073785",
                "14885506329976524987742322512464190708"
            ],
            "threshold": 0.9
        },
        "signature_type": "Line",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@32afa1f23e42cc635ccf4c39f24514d03d1e8338",
        "id": "CVE-2022-48637-f5f587fd"
    }
]

source

"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-48637.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
5.14.0
Fixed
5.15.71
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
5.19.12

Database specific

source

"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-48637.json"