CVE-2024-40957

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Source
https://nvd.nist.gov/vuln/detail/CVE-2024-40957
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-40957.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2024-40957
Downstream
Related
Published
2024-07-12T12:31:59.747Z
Modified
2025-11-20T05:27:02.198651Z
Summary
seg6: fix parameter passing when calling NF_HOOK() in End.DX4 and End.DX6 behaviors
Details

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

seg6: fix parameter passing when calling NF_HOOK() in End.DX4 and End.DX6 behaviors

inputactionenddx4() and inputactionenddx6() are called NFHOOK() for PREROUTING hook, in PREROUTING hook, we should passing a valid indev, and a NULL outdev to NFHOOK(), otherwise may trigger a NULL pointer dereference, as below:

[74830.647293] BUG: kernel NULL pointer dereference, address: 0000000000000090
[74830.655633] #PF: supervisor read access in kernel mode
[74830.657888] #PF: error_code(0x0000) - not-present page
[74830.659500] PGD 0 P4D 0
[74830.660450] Oops: 0000 [#1] PREEMPT SMP PTI
...
[74830.664953] Hardware name: Red Hat KVM, BIOS 0.5.1 01/01/2011
[74830.666569] RIP: 0010:rpfilter_mt+0x44/0x15e [ipt_rpfilter]
...
[74830.689725] Call Trace:
[74830.690402]  <IRQ>
[74830.690953]  ? show_trace_log_lvl+0x1c4/0x2df
[74830.692020]  ? show_trace_log_lvl+0x1c4/0x2df
[74830.693095]  ? ipt_do_table+0x286/0x710 [ip_tables]
[74830.694275]  ? __die_body.cold+0x8/0xd
[74830.695205]  ? page_fault_oops+0xac/0x140
[74830.696244]  ? exc_page_fault+0x62/0x150
[74830.697225]  ? asm_exc_page_fault+0x22/0x30
[74830.698344]  ? rpfilter_mt+0x44/0x15e [ipt_rpfilter]
[74830.699540]  ipt_do_table+0x286/0x710 [ip_tables]
[74830.700758]  ? ip6_route_input+0x19d/0x240
[74830.701752]  nf_hook_slow+0x3f/0xb0
[74830.702678]  input_action_end_dx4+0x19b/0x1e0
[74830.703735]  ? input_action_end_t+0xe0/0xe0
[74830.704734]  seg6_local_input_core+0x2d/0x60
[74830.705782]  lwtunnel_input+0x5b/0xb0
[74830.706690]  __netif_receive_skb_one_core+0x63/0xa0
[74830.707825]  process_backlog+0x99/0x140
[74830.709538]  __napi_poll+0x2c/0x160
[74830.710673]  net_rx_action+0x296/0x350
[74830.711860]  __do_softirq+0xcb/0x2ac
[74830.713049]  do_softirq+0x63/0x90

inputactionenddx4() passing a NULL indev to NFHOOK(), and finally trigger a NULL dereference in rpfiltermt()->rpfilteris_loopback():

static bool
rpfilter_is_loopback(const struct sk_buff *skb,
               const struct net_device *in)
{
        // in is NULL
        return skb->pkt_type == PACKET_LOOPBACK ||
         in->flags & IFF_LOOPBACK;
}
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
7a3f5b0de3647c854e34269c3332d7a1e902901a
Fixed
af90e3d73dc45778767b2fb6e7edd57ebe34380d
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
7a3f5b0de3647c854e34269c3332d7a1e902901a
Fixed
ec4d970b597ee5e17b0d8d73b7875197ce9a04d4
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
7a3f5b0de3647c854e34269c3332d7a1e902901a
Fixed
d62df86c172033679d744f07d89e93e367dd11f6
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
7a3f5b0de3647c854e34269c3332d7a1e902901a
Fixed
561475d53aa7e4511ee7cdba8728ded81cf1db1c
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
7a3f5b0de3647c854e34269c3332d7a1e902901a
Fixed
9a3bc8d16e0aacd65c31aaf23a2bced3288a7779

Affected versions

v5.*

v5.14
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
v5.15.100
v5.15.101
v5.15.102
v5.15.103
v5.15.104
v5.15.105
v5.15.106
v5.15.107
v5.15.108
v5.15.109
v5.15.11
v5.15.110
v5.15.111
v5.15.112
v5.15.113
v5.15.114
v5.15.115
v5.15.116
v5.15.117
v5.15.118
v5.15.119
v5.15.12
v5.15.120
v5.15.121
v5.15.122
v5.15.123
v5.15.124
v5.15.125
v5.15.126
v5.15.127
v5.15.128
v5.15.129
v5.15.13
v5.15.130
v5.15.131
v5.15.132
v5.15.133
v5.15.134
v5.15.135
v5.15.136
v5.15.137
v5.15.138
v5.15.139
v5.15.14
v5.15.140
v5.15.141
v5.15.142
v5.15.143
v5.15.144
v5.15.145
v5.15.146
v5.15.147
v5.15.148
v5.15.149
v5.15.15
v5.15.150
v5.15.151
v5.15.152
v5.15.153
v5.15.154
v5.15.155
v5.15.156
v5.15.157
v5.15.158
v5.15.159
v5.15.16
v5.15.160
v5.15.161
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
v5.15.71
v5.15.72
v5.15.73
v5.15.74
v5.15.75
v5.15.76
v5.15.77
v5.15.78
v5.15.79
v5.15.8
v5.15.80
v5.15.81
v5.15.82
v5.15.83
v5.15.84
v5.15.85
v5.15.86
v5.15.87
v5.15.88
v5.15.89
v5.15.9
v5.15.90
v5.15.91
v5.15.92
v5.15.93
v5.15.94
v5.15.95
v5.15.96
v5.15.97
v5.15.98
v5.15.99
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

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
v6.1.11
v6.1.12
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
v6.10-rc1
v6.10-rc2
v6.10-rc3
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
v6.6.4
v6.6.5
v6.6.6
v6.6.7
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
v6.9.1
v6.9.2
v6.9.3
v6.9.4
v6.9.5
v6.9.6

Database specific

vanir_signatures

[
    {
        "signature_type": "Line",
        "deprecated": false,
        "target": {
            "file": "net/ipv6/seg6_local.c"
        },
        "digest": {
            "line_hashes": [
                "164457310457610540274048716585600107871",
                "317405441756421568586162215725723976939",
                "232173707820377754568847562708441652586",
                "112537778728950590411125657879027143237",
                "239027692763360624645316168539033995275",
                "191713322869440693724339832916349678950",
                "31883665925236750844525303215787700755",
                "18449001219789432680335240449340236203",
                "335766982723495666389473300227288896853",
                "161379884539804500852740714453503592378"
            ],
            "threshold": 0.9
        },
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@9a3bc8d16e0aacd65c31aaf23a2bced3288a7779",
        "signature_version": "v1",
        "id": "CVE-2024-40957-22e60509"
    },
    {
        "signature_type": "Line",
        "deprecated": false,
        "target": {
            "file": "net/ipv6/seg6_local.c"
        },
        "digest": {
            "line_hashes": [
                "164457310457610540274048716585600107871",
                "317405441756421568586162215725723976939",
                "232173707820377754568847562708441652586",
                "112537778728950590411125657879027143237",
                "239027692763360624645316168539033995275",
                "191713322869440693724339832916349678950",
                "31883665925236750844525303215787700755",
                "18449001219789432680335240449340236203",
                "335766982723495666389473300227288896853",
                "161379884539804500852740714453503592378"
            ],
            "threshold": 0.9
        },
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@d62df86c172033679d744f07d89e93e367dd11f6",
        "signature_version": "v1",
        "id": "CVE-2024-40957-25e371bc"
    },
    {
        "signature_type": "Function",
        "deprecated": false,
        "target": {
            "file": "net/ipv6/seg6_local.c",
            "function": "input_action_end_dx6"
        },
        "digest": {
            "length": 537.0,
            "function_hash": "191133065979154922632106526573977589157"
        },
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@d62df86c172033679d744f07d89e93e367dd11f6",
        "signature_version": "v1",
        "id": "CVE-2024-40957-8b19b9c1"
    },
    {
        "signature_type": "Line",
        "deprecated": false,
        "target": {
            "file": "net/ipv6/seg6_local.c"
        },
        "digest": {
            "line_hashes": [
                "164457310457610540274048716585600107871",
                "317405441756421568586162215725723976939",
                "232173707820377754568847562708441652586",
                "112537778728950590411125657879027143237",
                "239027692763360624645316168539033995275",
                "191713322869440693724339832916349678950",
                "31883665925236750844525303215787700755",
                "18449001219789432680335240449340236203",
                "335766982723495666389473300227288896853",
                "161379884539804500852740714453503592378"
            ],
            "threshold": 0.9
        },
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@af90e3d73dc45778767b2fb6e7edd57ebe34380d",
        "signature_version": "v1",
        "id": "CVE-2024-40957-b99eee8f"
    },
    {
        "signature_type": "Function",
        "deprecated": false,
        "target": {
            "file": "net/ipv6/seg6_local.c",
            "function": "input_action_end_dx4"
        },
        "digest": {
            "length": 581.0,
            "function_hash": "204286372896530070269657077249322430834"
        },
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@d62df86c172033679d744f07d89e93e367dd11f6",
        "signature_version": "v1",
        "id": "CVE-2024-40957-c2ba3cc8"
    },
    {
        "signature_type": "Function",
        "deprecated": false,
        "target": {
            "file": "net/ipv6/seg6_local.c",
            "function": "input_action_end_dx6"
        },
        "digest": {
            "length": 537.0,
            "function_hash": "191133065979154922632106526573977589157"
        },
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@af90e3d73dc45778767b2fb6e7edd57ebe34380d",
        "signature_version": "v1",
        "id": "CVE-2024-40957-d4d039b2"
    },
    {
        "signature_type": "Function",
        "deprecated": false,
        "target": {
            "file": "net/ipv6/seg6_local.c",
            "function": "input_action_end_dx6"
        },
        "digest": {
            "length": 537.0,
            "function_hash": "191133065979154922632106526573977589157"
        },
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@9a3bc8d16e0aacd65c31aaf23a2bced3288a7779",
        "signature_version": "v1",
        "id": "CVE-2024-40957-e4273d06"
    },
    {
        "signature_type": "Function",
        "deprecated": false,
        "target": {
            "file": "net/ipv6/seg6_local.c",
            "function": "input_action_end_dx4"
        },
        "digest": {
            "length": 581.0,
            "function_hash": "204286372896530070269657077249322430834"
        },
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@af90e3d73dc45778767b2fb6e7edd57ebe34380d",
        "signature_version": "v1",
        "id": "CVE-2024-40957-e715a164"
    },
    {
        "signature_type": "Function",
        "deprecated": false,
        "target": {
            "file": "net/ipv6/seg6_local.c",
            "function": "input_action_end_dx4"
        },
        "digest": {
            "length": 581.0,
            "function_hash": "204286372896530070269657077249322430834"
        },
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@9a3bc8d16e0aacd65c31aaf23a2bced3288a7779",
        "signature_version": "v1",
        "id": "CVE-2024-40957-ff55d0b7"
    }
]

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
5.15.0
Fixed
5.15.162
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.96
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.36
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.9.7