CVE-2022-50466
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2022-50466
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-50466.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2022-50466
- Downstream
- Related
- Published
- 2025-10-01T11:45:37.376Z
- Modified
- 2025-11-15T05:06:18.219054Z
- Summary
- fs/binfmt_elf: Fix memory leak in load_elf_binary()
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
fs/binfmtelf: Fix memory leak in loadelf_binary()
There is a memory leak reported by kmemleak:
unreferenced object 0xffff88817104ef80 (size 224): comm "xfsadmin", pid 47165, jiffies 4298708825 (age 1333.476s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 60 a8 b3 00 81 88 ff ff a8 10 5a 00 81 88 ff ff `.........Z..... backtrace: [<ffffffff819171e1>] _allocfile+0x21/0x250 [<ffffffff81918061>] allocemptyfile+0x41/0xf0 [<ffffffff81948cda>] pathopenat+0xea/0x3d30 [<ffffffff8194ec89>] dofilpopen+0x1b9/0x290 [<ffffffff8192660e>] doopenexecat+0xce/0x5b0 [<ffffffff81926b17>] openexec+0x27/0x50 [<ffffffff81a69250>] loadelfbinary+0x510/0x3ed0 [<ffffffff81927759>] bprmexecve+0x599/0x1240 [<ffffffff8192a997>] doexecveatcommon.isra.0+0x4c7/0x680 [<ffffffff8192b078>] _x64sysexecve+0x88/0xb0 [<ffffffff83bbf0a5>] dosyscall_64+0x35/0x80
If "interpelfex" fails to allocate memory in loadelfbinary(), the program will take the "outfreeph" error handing path, resulting in "interpreter" file resource is not released.
Fix it by adding an error handing path "outfreefile", which will release the file resource when "interpelfex" failed to allocate memory.
- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/265b6fb780f57d10449a40e94219b28fa52479cc
- https://git.kernel.org/stable/c/594d2a14f2168c09b13b114c3d457aa939403e52
- https://git.kernel.org/stable/c/706215300411d48db6b51a5832b872632a84bbc1
- https://git.kernel.org/stable/c/acd9b4914f1c5928c7ae8ebc623d6291eb1a573a
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
-
Introduced0693ffebcfe5ac7b31f63ad54587007f7d96fb7bFixed706215300411d48db6b51a5832b872632a84bbc1
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced0693ffebcfe5ac7b31f63ad54587007f7d96fb7bFixed265b6fb780f57d10449a40e94219b28fa52479cc
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced0693ffebcfe5ac7b31f63ad54587007f7d96fb7bFixedacd9b4914f1c5928c7ae8ebc623d6291eb1a573a
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced0693ffebcfe5ac7b31f63ad54587007f7d96fb7bFixed594d2a14f2168c09b13b114c3d457aa939403e52
Affected versions
v5.*
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
v5.10.16
v5.10.17
v5.10.18
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
v5.15.11
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
v5.15.71
v5.15.72
v5.15.73
v5.15.74
v5.15.75
v5.15.76
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
v5.7
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
v6.0.1
v6.0.2
v6.0.3
v6.0.4
v6.0.5
v6.0.6
v6.1-rc1
Database specific
vanir_signatures
[
{
"signature_version": "v1",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@594d2a14f2168c09b13b114c3d457aa939403e52",
"signature_type": "Function",
"target": {
"function": "load_elf_binary",
"file": "fs/binfmt_elf.c"
},
"id": "CVE-2022-50466-0b91d152",
"digest": {
"length": 7475.0,
"function_hash": "319340080918361459330090018233876614766"
},
"deprecated": false
},
{
"signature_version": "v1",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@265b6fb780f57d10449a40e94219b28fa52479cc",
"signature_type": "Function",
"target": {
"function": "load_elf_binary",
"file": "fs/binfmt_elf.c"
},
"id": "CVE-2022-50466-1aeede9c",
"digest": {
"length": 7487.0,
"function_hash": "146665288076753107369623902979825123253"
},
"deprecated": false
},
{
"signature_version": "v1",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@594d2a14f2168c09b13b114c3d457aa939403e52",
"signature_type": "Line",
"target": {
"file": "fs/binfmt_elf.c"
},
"id": "CVE-2022-50466-473ee8f5",
"digest": {
"line_hashes": [
"225826773352559401573241625501033547950",
"79557538034889213382342953271995975805",
"91006337941324544696750526667799761522",
"153612106750943142211362051287102499085",
"226688940631350216956109161022860137692",
"281797802091043952987006483091961777963",
"289958879242784823549518954580245654029",
"295057729182664995923550446368208068015"
],
"threshold": 0.9
},
"deprecated": false
},
{
"signature_version": "v1",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@265b6fb780f57d10449a40e94219b28fa52479cc",
"signature_type": "Line",
"target": {
"file": "fs/binfmt_elf.c"
},
"id": "CVE-2022-50466-4e1e09d7",
"digest": {
"line_hashes": [
"225826773352559401573241625501033547950",
"79557538034889213382342953271995975805",
"91006337941324544696750526667799761522",
"153612106750943142211362051287102499085",
"226688940631350216956109161022860137692",
"281797802091043952987006483091961777963",
"289958879242784823549518954580245654029",
"295057729182664995923550446368208068015"
],
"threshold": 0.9
},
"deprecated": false
},
{
"signature_version": "v1",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@706215300411d48db6b51a5832b872632a84bbc1",
"signature_type": "Function",
"target": {
"function": "load_elf_binary",
"file": "fs/binfmt_elf.c"
},
"id": "CVE-2022-50466-6c1c7930",
"digest": {
"length": 7508.0,
"function_hash": "230918035303510750387694522006614622996"
},
"deprecated": false
},
{
"signature_version": "v1",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@acd9b4914f1c5928c7ae8ebc623d6291eb1a573a",
"signature_type": "Line",
"target": {
"file": "fs/binfmt_elf.c"
},
"id": "CVE-2022-50466-90869ec2",
"digest": {
"line_hashes": [
"225826773352559401573241625501033547950",
"79557538034889213382342953271995975805",
"91006337941324544696750526667799761522",
"153612106750943142211362051287102499085",
"226688940631350216956109161022860137692",
"281797802091043952987006483091961777963",
"289958879242784823549518954580245654029",
"295057729182664995923550446368208068015"
],
"threshold": 0.9
},
"deprecated": false
},
{
"signature_version": "v1",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@706215300411d48db6b51a5832b872632a84bbc1",
"signature_type": "Line",
"target": {
"file": "fs/binfmt_elf.c"
},
"id": "CVE-2022-50466-a2505bfc",
"digest": {
"line_hashes": [
"225826773352559401573241625501033547950",
"79557538034889213382342953271995975805",
"91006337941324544696750526667799761522",
"153612106750943142211362051287102499085",
"226688940631350216956109161022860137692",
"281797802091043952987006483091961777963",
"289958879242784823549518954580245654029",
"295057729182664995923550446368208068015"
],
"threshold": 0.9
},
"deprecated": false
},
{
"signature_version": "v1",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@acd9b4914f1c5928c7ae8ebc623d6291eb1a573a",
"signature_type": "Function",
"target": {
"function": "load_elf_binary",
"file": "fs/binfmt_elf.c"
},
"id": "CVE-2022-50466-dde00508",
"digest": {
"length": 7475.0,
"function_hash": "319340080918361459330090018233876614766"
},
"deprecated": false
}
]