CVE-2023-53217

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Source
https://nvd.nist.gov/vuln/detail/CVE-2023-53217
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53217.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2023-53217
Downstream
Related
Published
2025-09-15T14:21:44Z
Modified
2025-10-21T16:46:15.586709Z
Summary
nubus: Partially revert proc_create_single_data() conversion
Details

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

nubus: Partially revert proccreatesingle_data() conversion

The conversion to proccreatesingle_data() introduced a regression whereby reading a file in /proc/bus/nubus results in a seg fault:

# grep -r . /proc/bus/nubus/e/
Data read fault at 0x00000020 in Super Data (pc=0x1074c2)
BAD KERNEL BUSERR
Oops: 00000000
Modules linked in:
PC: [<001074c2>] PDE_DATA+0xc/0x16
SR: 2010  SP: 38284958  a2: 01152370
d0: 00000001    d1: 01013000    d2: 01002790    d3: 00000000
d4: 00000001    d5: 0008ce2e    a0: 00000000    a1: 00222a40
Process grep (pid: 45, task=142f8727)
Frame format=B ssw=074d isc=2008 isb=4e5e daddr=00000020 dobuf=01199e70
baddr=001074c8 dibuf=ffffffff ver=f
Stack from 01199e48:
    01199e70 00222a58 01002790 00000000 011a3000 01199eb0 015000c0 00000000
    00000000 01199ec0 01199ec0 000d551a 011a3000 00000001 00000000 00018000
    d003f000 00000003 00000001 0002800d 01052840 01199fa8 c01f8000 00000000
    00000029 0b532b80 00000000 00000000 00000029 0b532b80 01199ee4 00103640
    011198c0 d003f000 00018000 01199fa8 00000000 011198c0 00000000 01199f4c
    000b3344 011198c0 d003f000 00018000 01199fa8 00000000 00018000 011198c0
Call Trace: [<00222a58>] nubus_proc_rsrc_show+0x18/0xa0
 [<000d551a>] seq_read+0xc4/0x510
 [<00018000>] fp_fcos+0x2/0x82
 [<0002800d>] __sys_setreuid+0x115/0x1c6
 [<00103640>] proc_reg_read+0x5c/0xb0
 [<00018000>] fp_fcos+0x2/0x82
 [<000b3344>] __vfs_read+0x2c/0x13c
 [<00018000>] fp_fcos+0x2/0x82
 [<00018000>] fp_fcos+0x2/0x82
 [<000b8aa2>] sys_statx+0x60/0x7e
 [<000b34b6>] vfs_read+0x62/0x12a
 [<00018000>] fp_fcos+0x2/0x82
 [<00018000>] fp_fcos+0x2/0x82
 [<000b39c2>] ksys_read+0x48/0xbe
 [<00018000>] fp_fcos+0x2/0x82
 [<000b3a4e>] sys_read+0x16/0x1a
 [<00018000>] fp_fcos+0x2/0x82
 [<00002b84>] syscall+0x8/0xc
 [<00018000>] fp_fcos+0x2/0x82
 [<0000c016>] not_ext+0xa/0x18
Code: 4e5e 4e75 4e56 0000 206e 0008 2068 ffe8 <2068> 0020 2008 4e5e 4e75 4e56 0000 2f0b 206e 0008 2068 0004 2668 0020 206b ffe8
Disabling lock debugging due to kernel taint

Segmentation fault

The proccreatesingledata() conversion does not work because singleopen(file, nubusprocrsrcshow, PDEDATA(inode)) is not equivalent to the original code.

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
3f3942aca6da351a12543aa776467791b63b3a78
Fixed
f70407e8e0272e00d133c5e039168ff1bae6bcac
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
3f3942aca6da351a12543aa776467791b63b3a78
Fixed
c06edf13f4cf7f9e8ff4bc6f7e951e4f074dc105
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
3f3942aca6da351a12543aa776467791b63b3a78
Fixed
67e3b5230cefed1eca470c460a2035f02986cebb
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
3f3942aca6da351a12543aa776467791b63b3a78
Fixed
9877533e1401dbbb2c7da8badda05d196aa07623
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
3f3942aca6da351a12543aa776467791b63b3a78
Fixed
a03f2f4bd49030f57849227be9ba38a3eb1edb61
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
3f3942aca6da351a12543aa776467791b63b3a78
Fixed
0e96647cff9224db564a1cee6efccb13dbe11ee2

Affected versions

v4.*

v4.17
v4.17-rc6
v4.17-rc7
v4.18
v4.18-rc1
v4.18-rc2
v4.18-rc3
v4.18-rc4
v4.18-rc5
v4.18-rc6
v4.18-rc7
v4.18-rc8
v4.19
v4.19-rc1
v4.19-rc2
v4.19-rc3
v4.19-rc4
v4.19-rc5
v4.19-rc6
v4.19-rc7
v4.19-rc8
v4.20
v4.20-rc1
v4.20-rc2
v4.20-rc3
v4.20-rc4
v4.20-rc5
v4.20-rc6
v4.20-rc7

v5.*

v5.0
v5.0-rc1
v5.0-rc2
v5.0-rc3
v5.0-rc4
v5.0-rc5
v5.0-rc6
v5.0-rc7
v5.0-rc8
v5.1
v5.1-rc1
v5.1-rc2
v5.1-rc3
v5.1-rc4
v5.1-rc5
v5.1-rc6
v5.1-rc7
v5.10
v5.10-rc1
v5.10-rc2
v5.10-rc3
v5.10-rc4
v5.10-rc5
v5.10-rc6
v5.10-rc7
v5.10.1
v5.10.10
v5.10.100
v5.10.101
v5.10.102
v5.10.103
v5.10.104
v5.10.105
v5.10.106
v5.10.107
v5.10.108
v5.10.109
v5.10.11
v5.10.110
v5.10.111
v5.10.112
v5.10.113
v5.10.114
v5.10.115
v5.10.116
v5.10.117
v5.10.118
v5.10.119
v5.10.12
v5.10.120
v5.10.121
v5.10.122
v5.10.123
v5.10.124
v5.10.125
v5.10.126
v5.10.127
v5.10.128
v5.10.129
v5.10.13
v5.10.130
v5.10.131
v5.10.132
v5.10.133
v5.10.134
v5.10.135
v5.10.136
v5.10.137
v5.10.138
v5.10.139
v5.10.14
v5.10.140
v5.10.141
v5.10.142
v5.10.143
v5.10.144
v5.10.145
v5.10.146
v5.10.147
v5.10.148
v5.10.149
v5.10.15
v5.10.150
v5.10.151
v5.10.152
v5.10.153
v5.10.154
v5.10.155
v5.10.156
v5.10.157
v5.10.158
v5.10.159
v5.10.16
v5.10.160
v5.10.161
v5.10.162
v5.10.163
v5.10.164
v5.10.165
v5.10.166
v5.10.167
v5.10.168
v5.10.169
v5.10.17
v5.10.170
v5.10.171
v5.10.172
v5.10.173
v5.10.174
v5.10.175
v5.10.176
v5.10.177
v5.10.178
v5.10.179
v5.10.18
v5.10.180
v5.10.181
v5.10.182
v5.10.183
v5.10.184
v5.10.185
v5.10.186
v5.10.187
v5.10.19
v5.10.2
v5.10.20
v5.10.21
v5.10.22
v5.10.23
v5.10.24
v5.10.25
v5.10.26
v5.10.27
v5.10.28
v5.10.29
v5.10.3
v5.10.30
v5.10.31
v5.10.32
v5.10.33
v5.10.34
v5.10.35
v5.10.36
v5.10.37
v5.10.38
v5.10.39
v5.10.4
v5.10.40
v5.10.41
v5.10.42
v5.10.43
v5.10.44
v5.10.45
v5.10.46
v5.10.47
v5.10.48
v5.10.49
v5.10.5
v5.10.50
v5.10.51
v5.10.52
v5.10.53
v5.10.54
v5.10.55
v5.10.56
v5.10.57
v5.10.58
v5.10.59
v5.10.6
v5.10.60
v5.10.61
v5.10.62
v5.10.63
v5.10.64
v5.10.65
v5.10.66
v5.10.67
v5.10.68
v5.10.69
v5.10.7
v5.10.70
v5.10.71
v5.10.72
v5.10.73
v5.10.74
v5.10.75
v5.10.76
v5.10.77
v5.10.78
v5.10.79
v5.10.8
v5.10.80
v5.10.81
v5.10.82
v5.10.83
v5.10.84
v5.10.85
v5.10.86
v5.10.87
v5.10.88
v5.10.89
v5.10.9
v5.10.90
v5.10.91
v5.10.92
v5.10.93
v5.10.94
v5.10.95
v5.10.96
v5.10.97
v5.10.98
v5.10.99
v5.11
v5.11-rc1
v5.11-rc2
v5.11-rc3
v5.11-rc4
v5.11-rc5
v5.11-rc6
v5.11-rc7
v5.12
v5.12-rc1
v5.12-rc1-dontuse
v5.12-rc2
v5.12-rc3
v5.12-rc4
v5.12-rc5
v5.12-rc6
v5.12-rc7
v5.12-rc8
v5.13
v5.13-rc1
v5.13-rc2
v5.13-rc3
v5.13-rc4
v5.13-rc5
v5.13-rc6
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
v5.15.100
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
v5.15.13
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
v5.15.71
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
v5.2
v5.2-rc1
v5.2-rc2
v5.2-rc3
v5.2-rc4
v5.2-rc5
v5.2-rc6
v5.2-rc7
v5.3
v5.3-rc1
v5.3-rc2
v5.3-rc3
v5.3-rc4
v5.3-rc5
v5.3-rc6
v5.3-rc7
v5.3-rc8
v5.4
v5.4-rc1
v5.4-rc2
v5.4-rc3
v5.4-rc4
v5.4-rc5
v5.4-rc6
v5.4-rc7
v5.4-rc8
v5.5
v5.5-rc1
v5.5-rc2
v5.5-rc3
v5.5-rc4
v5.5-rc5
v5.5-rc6
v5.5-rc7
v5.6
v5.6-rc1
v5.6-rc2
v5.6-rc3
v5.6-rc4
v5.6-rc5
v5.6-rc6
v5.6-rc7
v5.7
v5.7-rc1
v5.7-rc2
v5.7-rc3
v5.7-rc4
v5.7-rc5
v5.7-rc6
v5.7-rc7
v5.8
v5.8-rc1
v5.8-rc2
v5.8-rc3
v5.8-rc4
v5.8-rc5
v5.8-rc6
v5.8-rc7
v5.9
v5.9-rc1
v5.9-rc2
v5.9-rc3
v5.9-rc4
v5.9-rc5
v5.9-rc6
v5.9-rc7
v5.9-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
v6.1.4
v6.1.5
v6.1.6
v6.1.7
v6.1.8
v6.1.9
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
v6.3.1
v6.3.10
v6.3.11
v6.3.2
v6.3.3
v6.3.4
v6.3.5
v6.3.6
v6.3.7
v6.3.8
v6.3.9
v6.4
v6.4-rc1
v6.4-rc2
v6.4-rc3
v6.4-rc4
v6.4-rc5
v6.4-rc6
v6.4-rc7
v6.4.1

Database specific

vanir_signatures

[
    {
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@a03f2f4bd49030f57849227be9ba38a3eb1edb61",
        "target": {
            "function": "nubus_proc_add_rsrc_mem",
            "file": "drivers/nubus/proc.c"
        },
        "digest": {
            "function_hash": "110480545475078287023624546100947243906",
            "length": 348.0
        },
        "deprecated": false,
        "signature_type": "Function",
        "signature_version": "v1",
        "id": "CVE-2023-53217-063d90cf"
    },
    {
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@c06edf13f4cf7f9e8ff4bc6f7e951e4f074dc105",
        "target": {
            "file": "drivers/nubus/proc.c"
        },
        "digest": {
            "line_hashes": [
                "273757613061984198506744770197048238609",
                "70681325599273151500162742187534604198",
                "140338696167320899663402104831038952800",
                "77429788160138633820523449342194598771",
                "243952612051017438422422773827681201730",
                "63069552155809502773880022422310628606",
                "58541491894223417872413823989396604159",
                "253789359834045327929014230897511416532",
                "269518708697232911262312918429075714699",
                "242866982804789535824170246517112066351",
                "337969149888252294500826508867453388521",
                "200308715067556960604063076374724782013",
                "73475727555451930419222601833990254151",
                "118819183161246440010011340501247963909"
            ],
            "threshold": 0.9
        },
        "deprecated": false,
        "signature_type": "Line",
        "signature_version": "v1",
        "id": "CVE-2023-53217-0c6f49d4"
    },
    {
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@9877533e1401dbbb2c7da8badda05d196aa07623",
        "target": {
            "function": "nubus_proc_add_rsrc",
            "file": "drivers/nubus/proc.c"
        },
        "digest": {
            "function_hash": "130526353352235794869691160333984985040",
            "length": 308.0
        },
        "deprecated": false,
        "signature_type": "Function",
        "signature_version": "v1",
        "id": "CVE-2023-53217-10e7de62"
    },
    {
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@0e96647cff9224db564a1cee6efccb13dbe11ee2",
        "target": {
            "function": "nubus_proc_add_rsrc",
            "file": "drivers/nubus/proc.c"
        },
        "digest": {
            "function_hash": "130526353352235794869691160333984985040",
            "length": 308.0
        },
        "deprecated": false,
        "signature_type": "Function",
        "signature_version": "v1",
        "id": "CVE-2023-53217-25a4c6f0"
    },
    {
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@9877533e1401dbbb2c7da8badda05d196aa07623",
        "target": {
            "function": "nubus_proc_add_rsrc_mem",
            "file": "drivers/nubus/proc.c"
        },
        "digest": {
            "function_hash": "110480545475078287023624546100947243906",
            "length": 348.0
        },
        "deprecated": false,
        "signature_type": "Function",
        "signature_version": "v1",
        "id": "CVE-2023-53217-344f5902"
    },
    {
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@c06edf13f4cf7f9e8ff4bc6f7e951e4f074dc105",
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Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
4.18.0
Fixed
5.10.188
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.120
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.38
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.3.12
Type
ECOSYSTEM
Events
Introduced
6.4.0
Fixed
6.4.2