CVE-2025-21790

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Source
https://nvd.nist.gov/vuln/detail/CVE-2025-21790
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-21790.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-21790
Downstream
Related
Published
2025-02-27T02:18:28Z
Modified
2025-10-17T21:57:13.850308Z
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
vxlan: check vxlan_vnigroup_init() return value
Details

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

vxlan: check vxlanvnigroupinit() return value

vxlaninit() must check vxlanvnigroup_init() success otherwise a crash happens later, spotted by syzbot.

Oops: general protection fault, probably for non-canonical address 0xdffffc000000002c: 0000 [#1] PREEMPT SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x0000000000000160-0x0000000000000167] CPU: 0 UID: 0 PID: 7313 Comm: syz-executor147 Not tainted 6.14.0-rc1-syzkaller-00276-g69b54314c975 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:vxlanvnigroupuninit+0x89/0x500 drivers/net/vxlan/vxlanvnifilter.c:912 Code: 00 48 8b 44 24 08 4c 8b b0 98 41 00 00 49 8d 86 60 01 00 00 48 89 c2 48 89 44 24 10 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 4d 04 00 00 49 8b 86 60 01 00 00 48 ba 00 00 00 RSP: 0018:ffffc9000cc1eea8 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffffff8672effb RDX: 000000000000002c RSI: ffffffff8672ecb9 RDI: ffff8880461b4f18 RBP: ffff8880461b4ef4 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000020000 R13: ffff8880461b0d80 R14: 0000000000000000 R15: dffffc0000000000 FS: 00007fecfa95d6c0(0000) GS:ffff88806a600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fecfa95cfb8 CR3: 000000004472c000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> vxlanuninit+0x1ab/0x200 drivers/net/vxlan/vxlancore.c:2942 unregisternetdevicemanynotify+0x12d6/0x1f30 net/core/dev.c:11824 unregisternetdevicemany net/core/dev.c:11866 [inline] unregisternetdevicequeue+0x307/0x3f0 net/core/dev.c:11736 registernetdevice+0x1829/0x1eb0 net/core/dev.c:10901 _vxlandevcreate+0x7c6/0xa30 drivers/net/vxlan/vxlancore.c:3981 vxlannewlink+0xd1/0x130 drivers/net/vxlan/vxlancore.c:4407 rtnlnewlinkcreate net/core/rtnetlink.c:3795 [inline] _rtnl_newlink net/core/rtnetlink.c:3906 [inline]

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
f9c4bb0b245cee35ef66f75bf409c9573d934cf9
Fixed
79aea5e55156c87dc570e43fcd8bba01b9d6ab3f
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
f9c4bb0b245cee35ef66f75bf409c9573d934cf9
Fixed
a303649b99b64858d62ce7428125d8e71675d2b6
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
f9c4bb0b245cee35ef66f75bf409c9573d934cf9
Fixed
e860f847787fbbf0d8dacd638c019c7c3d4a9bd3
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
f9c4bb0b245cee35ef66f75bf409c9573d934cf9
Fixed
3215f5aafc49aaa993991633833854694e73b439
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
f9c4bb0b245cee35ef66f75bf409c9573d934cf9
Fixed
5805402dcc56241987bca674a1b4da79a249bab7

Affected versions

v5.*

v5.17
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
v6.1
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

[
    {
        "id": "CVE-2025-21790-2b43763c",
        "deprecated": false,
        "signature_version": "v1",
        "signature_type": "Line",
        "target": {
            "file": "drivers/net/vxlan/vxlan_core.c"
        },
        "digest": {
            "line_hashes": [
                "263853413958087438100805132607909992129",
                "269979032199758666104869012625543369063",
                "271976876498163224444199773943386285302",
                "148396755431064419773667592854885410704",
                "326382791420042169880086498331699925423"
            ],
            "threshold": 0.9
        },
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@79aea5e55156c87dc570e43fcd8bba01b9d6ab3f"
    },
    {
        "id": "CVE-2025-21790-38ebfb0a",
        "deprecated": false,
        "signature_version": "v1",
        "signature_type": "Line",
        "target": {
            "file": "drivers/net/vxlan/vxlan_core.c"
        },
        "digest": {
            "line_hashes": [
                "263853413958087438100805132607909992129",
                "269979032199758666104869012625543369063",
                "177822006728797774280126372506250704073",
                "161889084574552073090522402525564671801",
                "167926720189825325594254166818933722182"
            ],
            "threshold": 0.9
        },
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@3215f5aafc49aaa993991633833854694e73b439"
    },
    {
        "id": "CVE-2025-21790-487b05d2",
        "deprecated": false,
        "signature_version": "v1",
        "signature_type": "Function",
        "target": {
            "file": "drivers/net/vxlan/vxlan_core.c",
            "function": "vxlan_init"
        },
        "digest": {
            "function_hash": "283650878423567170696865675824023073578",
            "length": 496.0
        },
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@e860f847787fbbf0d8dacd638c019c7c3d4a9bd3"
    },
    {
        "id": "CVE-2025-21790-4ae9a8d0",
        "deprecated": false,
        "signature_version": "v1",
        "signature_type": "Line",
        "target": {
            "file": "drivers/net/vxlan/vxlan_core.c"
        },
        "digest": {
            "line_hashes": [
                "263853413958087438100805132607909992129",
                "269979032199758666104869012625543369063",
                "177822006728797774280126372506250704073",
                "161889084574552073090522402525564671801",
                "167926720189825325594254166818933722182"
            ],
            "threshold": 0.9
        },
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@5805402dcc56241987bca674a1b4da79a249bab7"
    },
    {
        "id": "CVE-2025-21790-505150d9",
        "deprecated": false,
        "signature_version": "v1",
        "signature_type": "Line",
        "target": {
            "file": "drivers/net/vxlan/vxlan_core.c"
        },
        "digest": {
            "line_hashes": [
                "263853413958087438100805132607909992129",
                "269979032199758666104869012625543369063",
                "271976876498163224444199773943386285302",
                "148396755431064419773667592854885410704",
                "326382791420042169880086498331699925423"
            ],
            "threshold": 0.9
        },
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@a303649b99b64858d62ce7428125d8e71675d2b6"
    },
    {
        "id": "CVE-2025-21790-5998c3d2",
        "deprecated": false,
        "signature_version": "v1",
        "signature_type": "Function",
        "target": {
            "file": "drivers/net/vxlan/vxlan_core.c",
            "function": "vxlan_init"
        },
        "digest": {
            "function_hash": "304798998370916360619983283190947351043",
            "length": 686.0
        },
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@a303649b99b64858d62ce7428125d8e71675d2b6"
    },
    {
        "id": "CVE-2025-21790-918668a0",
        "deprecated": false,
        "signature_version": "v1",
        "signature_type": "Line",
        "target": {
            "file": "drivers/net/vxlan/vxlan_core.c"
        },
        "digest": {
            "line_hashes": [
                "263853413958087438100805132607909992129",
                "269979032199758666104869012625543369063",
                "177822006728797774280126372506250704073",
                "161889084574552073090522402525564671801",
                "167926720189825325594254166818933722182"
            ],
            "threshold": 0.9
        },
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@e860f847787fbbf0d8dacd638c019c7c3d4a9bd3"
    },
    {
        "id": "CVE-2025-21790-c0af868e",
        "deprecated": false,
        "signature_version": "v1",
        "signature_type": "Function",
        "target": {
            "file": "drivers/net/vxlan/vxlan_core.c",
            "function": "vxlan_init"
        },
        "digest": {
            "function_hash": "283650878423567170696865675824023073578",
            "length": 496.0
        },
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@5805402dcc56241987bca674a1b4da79a249bab7"
    },
    {
        "id": "CVE-2025-21790-d15eb6ff",
        "deprecated": false,
        "signature_version": "v1",
        "signature_type": "Function",
        "target": {
            "file": "drivers/net/vxlan/vxlan_core.c",
            "function": "vxlan_init"
        },
        "digest": {
            "function_hash": "86389194121878983299742043952247026318",
            "length": 542.0
        },
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@79aea5e55156c87dc570e43fcd8bba01b9d6ab3f"
    },
    {
        "id": "CVE-2025-21790-db7016c4",
        "deprecated": false,
        "signature_version": "v1",
        "signature_type": "Function",
        "target": {
            "file": "drivers/net/vxlan/vxlan_core.c",
            "function": "vxlan_init"
        },
        "digest": {
            "function_hash": "283650878423567170696865675824023073578",
            "length": 496.0
        },
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@3215f5aafc49aaa993991633833854694e73b439"
    }
]

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
5.18.0
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