CVE-2025-21775

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Source
https://nvd.nist.gov/vuln/detail/CVE-2025-21775
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-21775.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-21775
Downstream
Related
Published
2025-02-27T02:18:21Z
Modified
2025-10-17T21:54:11.940340Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
can: ctucanfd: handle skb allocation failure
Details

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

can: ctucanfd: handle skb allocation failure

If skb allocation fails, the pointer to struct canframe is NULL. This is actually handled everywhere inside ctucanerr_interrupt() except for the only place.

Add the missed NULL check.

Found by Linux Verification Center (linuxtesting.org) with SVACE static analysis tool.

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
2dcb8e8782d8e4c38903bf37b1a24d3ffd193da7
Fixed
84b9ac59978a6a4e0812d1c938fad97306272cef
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
2dcb8e8782d8e4c38903bf37b1a24d3ffd193da7
Fixed
e505b83b9ee6aa0ae2f4395f573a66579ae403fb
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
2dcb8e8782d8e4c38903bf37b1a24d3ffd193da7
Fixed
b0e592dd46a0a952b41c3bf6c963afdd6a42b526
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
2dcb8e8782d8e4c38903bf37b1a24d3ffd193da7
Fixed
e7e2e2318b1f085044126ba553a4e619842fc36d
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
2dcb8e8782d8e4c38903bf37b1a24d3ffd193da7
Fixed
9bd24927e3eeb85642c7baa3b28be8bea6c2a078

Affected versions

v5.*

v5.18
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
v6.1
v6.1-rc1
v6.1-rc2
v6.1-rc3
v6.1-rc4
v6.1-rc5
v6.1-rc6
v6.1-rc7
v6.1-rc8
v6.1.1
v6.1.10
v6.1.100
v6.1.101
v6.1.102
v6.1.103
v6.1.104
v6.1.105
v6.1.106
v6.1.107
v6.1.108
v6.1.109
v6.1.11
v6.1.110
v6.1.111
v6.1.112
v6.1.113
v6.1.114
v6.1.115
v6.1.116
v6.1.117
v6.1.118
v6.1.119
v6.1.12
v6.1.120
v6.1.121
v6.1.122
v6.1.123
v6.1.124
v6.1.125
v6.1.126
v6.1.127
v6.1.128
v6.1.13
v6.1.14
v6.1.15
v6.1.16
v6.1.17
v6.1.18
v6.1.19
v6.1.2
v6.1.20
v6.1.21
v6.1.22
v6.1.23
v6.1.24
v6.1.25
v6.1.26
v6.1.27
v6.1.28
v6.1.29
v6.1.3
v6.1.30
v6.1.31
v6.1.32
v6.1.33
v6.1.34
v6.1.35
v6.1.36
v6.1.37
v6.1.38
v6.1.39
v6.1.4
v6.1.40
v6.1.41
v6.1.42
v6.1.43
v6.1.44
v6.1.45
v6.1.46
v6.1.47
v6.1.48
v6.1.49
v6.1.5
v6.1.50
v6.1.51
v6.1.52
v6.1.53
v6.1.54
v6.1.55
v6.1.56
v6.1.57
v6.1.58
v6.1.59
v6.1.6
v6.1.60
v6.1.61
v6.1.62
v6.1.63
v6.1.64
v6.1.65
v6.1.66
v6.1.67
v6.1.68
v6.1.69
v6.1.7
v6.1.70
v6.1.71
v6.1.72
v6.1.73
v6.1.74
v6.1.75
v6.1.76
v6.1.77
v6.1.78
v6.1.79
v6.1.8
v6.1.80
v6.1.81
v6.1.82
v6.1.83
v6.1.84
v6.1.85
v6.1.86
v6.1.87
v6.1.88
v6.1.89
v6.1.9
v6.1.90
v6.1.91
v6.1.92
v6.1.93
v6.1.94
v6.1.95
v6.1.96
v6.1.97
v6.1.98
v6.1.99
v6.10
v6.10-rc1
v6.10-rc2
v6.10-rc3
v6.10-rc4
v6.10-rc5
v6.10-rc6
v6.10-rc7
v6.11
v6.11-rc1
v6.11-rc2
v6.11-rc3
v6.11-rc4
v6.11-rc5
v6.11-rc6
v6.11-rc7
v6.12
v6.12-rc1
v6.12-rc2
v6.12-rc3
v6.12-rc4
v6.12-rc5
v6.12-rc6
v6.12-rc7
v6.12.1
v6.12.10
v6.12.11
v6.12.12
v6.12.13
v6.12.14
v6.12.15
v6.12.2
v6.12.3
v6.12.4
v6.12.5
v6.12.6
v6.12.7
v6.12.8
v6.12.9
v6.13
v6.13-rc1
v6.13-rc2
v6.13-rc3
v6.13-rc4
v6.13-rc5
v6.13-rc6
v6.13-rc7
v6.13.1
v6.13.2
v6.13.3
v6.14-rc1
v6.2
v6.2-rc1
v6.2-rc2
v6.2-rc3
v6.2-rc4
v6.2-rc5
v6.2-rc6
v6.2-rc7
v6.2-rc8
v6.3
v6.3-rc1
v6.3-rc2
v6.3-rc3
v6.3-rc4
v6.3-rc5
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
v6.5
v6.5-rc1
v6.5-rc2
v6.5-rc3
v6.5-rc4
v6.5-rc5
v6.5-rc6
v6.5-rc7
v6.6
v6.6-rc1
v6.6-rc2
v6.6-rc3
v6.6-rc4
v6.6-rc5
v6.6-rc6
v6.6-rc7
v6.6.1
v6.6.10
v6.6.11
v6.6.12
v6.6.13
v6.6.14
v6.6.15
v6.6.16
v6.6.17
v6.6.18
v6.6.19
v6.6.2
v6.6.20
v6.6.21
v6.6.22
v6.6.23
v6.6.24
v6.6.25
v6.6.26
v6.6.27
v6.6.28
v6.6.29
v6.6.3
v6.6.30
v6.6.31
v6.6.32
v6.6.33
v6.6.34
v6.6.35
v6.6.36
v6.6.37
v6.6.38
v6.6.39
v6.6.4
v6.6.40
v6.6.41
v6.6.42
v6.6.43
v6.6.44
v6.6.45
v6.6.46
v6.6.47
v6.6.48
v6.6.49
v6.6.5
v6.6.50
v6.6.51
v6.6.52
v6.6.53
v6.6.54
v6.6.55
v6.6.56
v6.6.57
v6.6.58
v6.6.59
v6.6.6
v6.6.60
v6.6.61
v6.6.62
v6.6.63
v6.6.64
v6.6.65
v6.6.66
v6.6.67
v6.6.68
v6.6.69
v6.6.7
v6.6.70
v6.6.71
v6.6.72
v6.6.73
v6.6.74
v6.6.75
v6.6.76
v6.6.77
v6.6.78
v6.6.8
v6.6.9
v6.7
v6.7-rc1
v6.7-rc2
v6.7-rc3
v6.7-rc4
v6.7-rc5
v6.7-rc6
v6.7-rc7
v6.7-rc8
v6.8
v6.8-rc1
v6.8-rc2
v6.8-rc3
v6.8-rc4
v6.8-rc5
v6.8-rc6
v6.8-rc7
v6.9
v6.9-rc1
v6.9-rc2
v6.9-rc3
v6.9-rc4
v6.9-rc5
v6.9-rc6
v6.9-rc7

Database specific

vanir_signatures

[
    {
        "signature_version": "v1",
        "target": {
            "file": "drivers/net/can/ctucanfd/ctucanfd_base.c"
        },
        "deprecated": false,
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@b0e592dd46a0a952b41c3bf6c963afdd6a42b526",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "282199306061712610083394687415868955588",
                "218785602190723048336544916432052042634",
                "300533971356764070759028245507626764225",
                "16159849851707557052314872052332125871",
                "77469659038270402727147219482819853887",
                "203245850184478742734234277826817770289",
                "120220662250621513155064861633668963533"
            ]
        },
        "id": "CVE-2025-21775-14a7709d",
        "signature_type": "Line"
    },
    {
        "signature_version": "v1",
        "target": {
            "file": "drivers/net/can/ctucanfd/ctucanfd_base.c"
        },
        "deprecated": false,
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@e7e2e2318b1f085044126ba553a4e619842fc36d",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "282199306061712610083394687415868955588",
                "218785602190723048336544916432052042634",
                "300533971356764070759028245507626764225",
                "16159849851707557052314872052332125871",
                "77469659038270402727147219482819853887",
                "203245850184478742734234277826817770289",
                "120220662250621513155064861633668963533"
            ]
        },
        "id": "CVE-2025-21775-224be4b8",
        "signature_type": "Line"
    },
    {
        "signature_version": "v1",
        "target": {
            "function": "ctucan_err_interrupt",
            "file": "drivers/net/can/ctucanfd/ctucanfd_base.c"
        },
        "deprecated": false,
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@9bd24927e3eeb85642c7baa3b28be8bea6c2a078",
        "digest": {
            "function_hash": "209082762664589833001261966566543217257",
            "length": 2737.0
        },
        "id": "CVE-2025-21775-30668c24",
        "signature_type": "Function"
    },
    {
        "signature_version": "v1",
        "target": {
            "file": "drivers/net/can/ctucanfd/ctucanfd_base.c"
        },
        "deprecated": false,
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@9bd24927e3eeb85642c7baa3b28be8bea6c2a078",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "282199306061712610083394687415868955588",
                "218785602190723048336544916432052042634",
                "300533971356764070759028245507626764225",
                "16159849851707557052314872052332125871",
                "77469659038270402727147219482819853887",
                "203245850184478742734234277826817770289",
                "120220662250621513155064861633668963533"
            ]
        },
        "id": "CVE-2025-21775-697fb378",
        "signature_type": "Line"
    },
    {
        "signature_version": "v1",
        "target": {
            "function": "ctucan_err_interrupt",
            "file": "drivers/net/can/ctucanfd/ctucanfd_base.c"
        },
        "deprecated": false,
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@e7e2e2318b1f085044126ba553a4e619842fc36d",
        "digest": {
            "function_hash": "209082762664589833001261966566543217257",
            "length": 2737.0
        },
        "id": "CVE-2025-21775-708f81dc",
        "signature_type": "Function"
    },
    {
        "signature_version": "v1",
        "target": {
            "function": "ctucan_err_interrupt",
            "file": "drivers/net/can/ctucanfd/ctucanfd_base.c"
        },
        "deprecated": false,
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@e505b83b9ee6aa0ae2f4395f573a66579ae403fb",
        "digest": {
            "function_hash": "209082762664589833001261966566543217257",
            "length": 2737.0
        },
        "id": "CVE-2025-21775-7635e1b1",
        "signature_type": "Function"
    },
    {
        "signature_version": "v1",
        "target": {
            "function": "ctucan_err_interrupt",
            "file": "drivers/net/can/ctucanfd/ctucanfd_base.c"
        },
        "deprecated": false,
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@b0e592dd46a0a952b41c3bf6c963afdd6a42b526",
        "digest": {
            "function_hash": "209082762664589833001261966566543217257",
            "length": 2737.0
        },
        "id": "CVE-2025-21775-780b6def",
        "signature_type": "Function"
    },
    {
        "signature_version": "v1",
        "target": {
            "file": "drivers/net/can/ctucanfd/ctucanfd_base.c"
        },
        "deprecated": false,
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@84b9ac59978a6a4e0812d1c938fad97306272cef",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "282199306061712610083394687415868955588",
                "218785602190723048336544916432052042634",
                "300533971356764070759028245507626764225",
                "16159849851707557052314872052332125871",
                "77469659038270402727147219482819853887",
                "203245850184478742734234277826817770289",
                "120220662250621513155064861633668963533"
            ]
        },
        "id": "CVE-2025-21775-8f1050f4",
        "signature_type": "Line"
    },
    {
        "signature_version": "v1",
        "target": {
            "function": "ctucan_err_interrupt",
            "file": "drivers/net/can/ctucanfd/ctucanfd_base.c"
        },
        "deprecated": false,
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@84b9ac59978a6a4e0812d1c938fad97306272cef",
        "digest": {
            "function_hash": "209082762664589833001261966566543217257",
            "length": 2737.0
        },
        "id": "CVE-2025-21775-9880b849",
        "signature_type": "Function"
    },
    {
        "signature_version": "v1",
        "target": {
            "file": "drivers/net/can/ctucanfd/ctucanfd_base.c"
        },
        "deprecated": false,
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@e505b83b9ee6aa0ae2f4395f573a66579ae403fb",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "282199306061712610083394687415868955588",
                "218785602190723048336544916432052042634",
                "300533971356764070759028245507626764225",
                "16159849851707557052314872052332125871",
                "77469659038270402727147219482819853887",
                "203245850184478742734234277826817770289",
                "120220662250621513155064861633668963533"
            ]
        },
        "id": "CVE-2025-21775-da420105",
        "signature_type": "Line"
    }
]

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
5.19.0
Fixed
6.1.129
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.79
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.12.16
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.13.4