CVE-2025-38149
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2025-38149
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-38149.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2025-38149
- Downstream
- Related
- Published
- 2025-07-03T08:35:54Z
- Modified
- 2025-10-18T02:48:34.873130Z
- Summary
- net: phy: clear phydev->devlink when the link is deleted
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
net: phy: clear phydev->devlink when the link is deleted
There is a potential crash issue when disabling and re-enabling the network port. When disabling the network port, phydetach() calls devicelinkdel() to remove the device link, but it does not clear phydev->devlink, so phydev->devlink is not a NULL pointer. Then the network port is re-enabled, but if phyattachdirect() fails before calling devicelinkadd(), the code jumps to the "error" label and calls phydetach(). Since phydev->devlink retains the old value from the previous attach/detach cycle, devicelinkdel() uses the old value, which accesses a NULL pointer and causes a crash. The simplified crash log is as follows.
[ 24.702421] Call trace: [ 24.704856] devicelinkputkref+0x20/0x120 [ 24.709124] devicelinkdel+0x30/0x48 [ 24.712864] phydetach+0x24/0x168 [ 24.716261] phyattachdirect+0x168/0x3a4 [ 24.720352] phylinkfwnodephyconnect+0xc8/0x14c [ 24.725140] phylinkofphyconnect+0x1c/0x34
Therefore, phydev->devlink needs to be cleared when the device link is deleted.
- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/034bc4a2a72dea2cfcaf24c6bae03c38ad5a0b87
- https://git.kernel.org/stable/c/0795b05a59b1371b18ffbf09d385296b12e9f5d5
- https://git.kernel.org/stable/c/363fdf2777423ad346d781f09548cca14877f729
- https://git.kernel.org/stable/c/ddc654e89ace723b78c34911c65243accbc9b75c
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
-
Introducedbc66fa87d4fda9053a8145e5718fc278c2b88253Fixed363fdf2777423ad346d781f09548cca14877f729
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedbc66fa87d4fda9053a8145e5718fc278c2b88253Fixedddc654e89ace723b78c34911c65243accbc9b75c
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedbc66fa87d4fda9053a8145e5718fc278c2b88253Fixed034bc4a2a72dea2cfcaf24c6bae03c38ad5a0b87
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedbc66fa87d4fda9053a8145e5718fc278c2b88253Fixed0795b05a59b1371b18ffbf09d385296b12e9f5d5
Affected versions
v6.*
v6.1
v6.1-rc8
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
v6.12.16
v6.12.17
v6.12.18
v6.12.19
v6.12.2
v6.12.20
v6.12.21
v6.12.22
v6.12.23
v6.12.24
v6.12.25
v6.12.26
v6.12.27
v6.12.28
v6.12.29
v6.12.3
v6.12.30
v6.12.31
v6.12.32
v6.12.33
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
v6.14
v6.14-rc1
v6.14-rc2
v6.14-rc3
v6.14-rc4
v6.14-rc5
v6.14-rc6
v6.14-rc7
v6.15
v6.15-rc1
v6.15-rc2
v6.15-rc3
v6.15-rc4
v6.15-rc5
v6.15-rc6
v6.15-rc7
v6.15.1
v6.15.2
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
v6.6.79
v6.6.8
v6.6.80
v6.6.81
v6.6.82
v6.6.83
v6.6.84
v6.6.85
v6.6.86
v6.6.87
v6.6.88
v6.6.89
v6.6.9
v6.6.90
v6.6.91
v6.6.92
v6.6.93
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
[
{
"signature_type": "Function",
"deprecated": false,
"signature_version": "v1",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@0795b05a59b1371b18ffbf09d385296b12e9f5d5",
"id": "CVE-2025-38149-2fcd9bb7",
"digest": {
"function_hash": "41184935385523338133506102247773819017",
"length": 1167.0
},
"target": {
"function": "phy_detach",
"file": "drivers/net/phy/phy_device.c"
}
},
{
"signature_type": "Function",
"deprecated": false,
"signature_version": "v1",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@363fdf2777423ad346d781f09548cca14877f729",
"id": "CVE-2025-38149-415bb32c",
"digest": {
"function_hash": "107691690081012089657478851297775593100",
"length": 991.0
},
"target": {
"function": "phy_detach",
"file": "drivers/net/phy/phy_device.c"
}
},
{
"signature_type": "Line",
"deprecated": false,
"signature_version": "v1",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@ddc654e89ace723b78c34911c65243accbc9b75c",
"id": "CVE-2025-38149-878b88a6",
"digest": {
"threshold": 0.9,
"line_hashes": [
"206290309524835746854512572148661072638",
"339554857702093977677595550276163989517",
"58500435448095213588232761298546402788",
"290932292285073598910739650801495861365",
"10027520929316782148643333278732002109"
]
},
"target": {
"file": "drivers/net/phy/phy_device.c"
}
},
{
"signature_type": "Function",
"deprecated": false,
"signature_version": "v1",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@034bc4a2a72dea2cfcaf24c6bae03c38ad5a0b87",
"id": "CVE-2025-38149-94b1994f",
"digest": {
"function_hash": "41184935385523338133506102247773819017",
"length": 1167.0
},
"target": {
"function": "phy_detach",
"file": "drivers/net/phy/phy_device.c"
}
},
{
"signature_type": "Line",
"deprecated": false,
"signature_version": "v1",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@363fdf2777423ad346d781f09548cca14877f729",
"id": "CVE-2025-38149-bbd788a6",
"digest": {
"threshold": 0.9,
"line_hashes": [
"206290309524835746854512572148661072638",
"339554857702093977677595550276163989517",
"58500435448095213588232761298546402788",
"290932292285073598910739650801495861365",
"10027520929316782148643333278732002109"
]
},
"target": {
"file": "drivers/net/phy/phy_device.c"
}
},
{
"signature_type": "Function",
"deprecated": false,
"signature_version": "v1",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@ddc654e89ace723b78c34911c65243accbc9b75c",
"id": "CVE-2025-38149-c2254378",
"digest": {
"function_hash": "312579510071577982462141742469346143550",
"length": 1018.0
},
"target": {
"function": "phy_detach",
"file": "drivers/net/phy/phy_device.c"
}
},
{
"signature_type": "Line",
"deprecated": false,
"signature_version": "v1",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@0795b05a59b1371b18ffbf09d385296b12e9f5d5",
"id": "CVE-2025-38149-d8156c2f",
"digest": {
"threshold": 0.9,
"line_hashes": [
"206290309524835746854512572148661072638",
"339554857702093977677595550276163989517",
"58500435448095213588232761298546402788",
"290932292285073598910739650801495861365",
"10027520929316782148643333278732002109"
]
},
"target": {
"file": "drivers/net/phy/phy_device.c"
}
},
{
"signature_type": "Line",
"deprecated": false,
"signature_version": "v1",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@034bc4a2a72dea2cfcaf24c6bae03c38ad5a0b87",
"id": "CVE-2025-38149-e4439ebc",
"digest": {
"threshold": 0.9,
"line_hashes": [
"206290309524835746854512572148661072638",
"339554857702093977677595550276163989517",
"58500435448095213588232761298546402788",
"290932292285073598910739650801495861365",
"10027520929316782148643333278732002109"
]
},
"target": {
"file": "drivers/net/phy/phy_device.c"
}
}
]