CVE-2022-49016
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2022-49016
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49016.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2022-49016
- Downstream
- Related
- Published
- 2024-10-21T20:06:25Z
- Modified
- 2025-10-08T07:27:08.473364Z
- Summary
- net: mdiobus: fix unbalanced node reference count
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
net: mdiobus: fix unbalanced node reference count
I got the following report while doing device(mscc-miim) load test with CONFIGOFUNITTEST and CONFIGOFDYNAMIC enabled:
OF: ERROR: memory leak, expected refcount 1 instead of 2, ofnodeget()/ofnodeput() unbalanced - destroy cset entry: attach overlay node /spi/soc@0/mdio@7107009c/ethernet-phy@0
If the 'fwnode' is not an acpi node, the refcount is get in fwnodemdiobusphydeviceregister(), but it has never been put when the device is freed in the normal path. So call fwnodehandleput() in phydevicerelease() to avoid leak.
If it's an acpi node, it has never been get, but it's put in the error path, so call fwnodehandleget() before phydeviceregister() to keep get/put operation balanced.
- 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
-
Introducedbc1bee3b87ee48bd97ef7fd306445132ba2041b0Fixed543d917f691ab06885ee779c862065899eaa4251
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedbc1bee3b87ee48bd97ef7fd306445132ba2041b0Fixed2708b357440427d6a9fee667eb7b8307f4625adc
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedbc1bee3b87ee48bd97ef7fd306445132ba2041b0Fixedcdde1560118f82498fc9e9a7c1ef7f0ef7755891
Affected versions
v5.*
v5.13
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
v5.15.77
v5.15.78
v5.15.79
v5.15.8
v5.15.80
v5.15.81
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
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
v6.0.10
v6.0.11
v6.0.2
v6.0.3
v6.0.4
v6.0.5
v6.0.6
v6.0.7
v6.0.8
v6.0.9
v6.1-rc1
v6.1-rc2
v6.1-rc3
v6.1-rc4
v6.1-rc5
Database specific
{
"vanir_signatures": [
{
"target": {
"file": "drivers/net/mdio/fwnode_mdio.c",
"function": "fwnode_mdiobus_register_phy"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@2708b357440427d6a9fee667eb7b8307f4625adc",
"digest": {
"length": 946.0,
"function_hash": "206369008473237629103635501755946581163"
},
"deprecated": false,
"id": "CVE-2022-49016-1e2d3e94",
"signature_type": "Function",
"signature_version": "v1"
},
{
"target": {
"file": "drivers/net/phy/phy_device.c"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@2708b357440427d6a9fee667eb7b8307f4625adc",
"digest": {
"threshold": 0.9,
"line_hashes": [
"95074494671049175860470845947260836356",
"193660856583917591712509917462886635091",
"44730505593811830096899842275496078258",
"186760641805473872502138111867938479178"
]
},
"deprecated": false,
"id": "CVE-2022-49016-3b4330f6",
"signature_type": "Line",
"signature_version": "v1"
},
{
"target": {
"file": "drivers/net/phy/phy_device.c",
"function": "phy_device_release"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@2708b357440427d6a9fee667eb7b8307f4625adc",
"digest": {
"length": 77.0,
"function_hash": "198116239689472689870110612360515563622"
},
"deprecated": false,
"id": "CVE-2022-49016-63f948a6",
"signature_type": "Function",
"signature_version": "v1"
},
{
"target": {
"file": "drivers/net/mdio/fwnode_mdio.c",
"function": "fwnode_mdiobus_register_phy"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@cdde1560118f82498fc9e9a7c1ef7f0ef7755891",
"digest": {
"length": 1139.0,
"function_hash": "153035345187954118318879631704036494681"
},
"deprecated": false,
"id": "CVE-2022-49016-69495937",
"signature_type": "Function",
"signature_version": "v1"
},
{
"target": {
"file": "drivers/net/phy/phy_device.c"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@543d917f691ab06885ee779c862065899eaa4251",
"digest": {
"threshold": 0.9,
"line_hashes": [
"95074494671049175860470845947260836356",
"193660856583917591712509917462886635091",
"44730505593811830096899842275496078258",
"186760641805473872502138111867938479178"
]
},
"deprecated": false,
"id": "CVE-2022-49016-825855f9",
"signature_type": "Line",
"signature_version": "v1"
},
{
"target": {
"file": "drivers/net/mdio/fwnode_mdio.c"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@cdde1560118f82498fc9e9a7c1ef7f0ef7755891",
"digest": {
"threshold": 0.9,
"line_hashes": [
"234821440306602979865896169972579826526",
"164114980967537113533187550604577556480",
"232642503574430282368621138851914741611",
"254773457988584592777178900108427333254"
]
},
"deprecated": false,
"id": "CVE-2022-49016-b63c2887",
"signature_type": "Line",
"signature_version": "v1"
},
{
"target": {
"file": "drivers/net/phy/phy_device.c"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@cdde1560118f82498fc9e9a7c1ef7f0ef7755891",
"digest": {
"threshold": 0.9,
"line_hashes": [
"95074494671049175860470845947260836356",
"193660856583917591712509917462886635091",
"44730505593811830096899842275496078258",
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]
},
"deprecated": false,
"id": "CVE-2022-49016-c1b23af3",
"signature_type": "Line",
"signature_version": "v1"
},
{
"target": {
"file": "drivers/net/phy/phy_device.c",
"function": "phy_device_release"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@543d917f691ab06885ee779c862065899eaa4251",
"digest": {
"length": 77.0,
"function_hash": "198116239689472689870110612360515563622"
},
"deprecated": false,
"id": "CVE-2022-49016-c4551fd4",
"signature_type": "Function",
"signature_version": "v1"
},
{
"target": {
"file": "drivers/net/mdio/fwnode_mdio.c"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@2708b357440427d6a9fee667eb7b8307f4625adc",
"digest": {
"threshold": 0.9,
"line_hashes": [
"234821440306602979865896169972579826526",
"164114980967537113533187550604577556480",
"232642503574430282368621138851914741611",
"182081209681462190784819387729048204024"
]
},
"deprecated": false,
"id": "CVE-2022-49016-c509d7a3",
"signature_type": "Line",
"signature_version": "v1"
},
{
"target": {
"file": "drivers/net/phy/phy_device.c",
"function": "phy_device_release"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@cdde1560118f82498fc9e9a7c1ef7f0ef7755891",
"digest": {
"length": 77.0,
"function_hash": "198116239689472689870110612360515563622"
},
"deprecated": false,
"id": "CVE-2022-49016-e284c8a6",
"signature_type": "Function",
"signature_version": "v1"
},
{
"target": {
"file": "drivers/net/mdio/fwnode_mdio.c"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@543d917f691ab06885ee779c862065899eaa4251",
"digest": {
"threshold": 0.9,
"line_hashes": [
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]
},
"deprecated": false,
"id": "CVE-2022-49016-e8735761",
"signature_type": "Line",
"signature_version": "v1"
},
{
"target": {
"file": "drivers/net/mdio/fwnode_mdio.c",
"function": "fwnode_mdiobus_register_phy"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@543d917f691ab06885ee779c862065899eaa4251",
"digest": {
"length": 946.0,
"function_hash": "206369008473237629103635501755946581163"
},
"deprecated": false,
"id": "CVE-2022-49016-fd57682c",
"signature_type": "Function",
"signature_version": "v1"
}
]
}