CVE-2025-40065
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2025-40065
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-40065.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2025-40065
- Downstream
- Published
- 2025-10-28T11:48:35Z
- Modified
- 2025-10-28T20:08:10.778499Z
- Summary
- RISC-V: KVM: Write hgatp register with valid mode bits
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
RISC-V: KVM: Write hgatp register with valid mode bits
According to the RISC-V Privileged Architecture Spec, when MODE=Bare is selected,software must write zero to the remaining fields of hgatp.
We have detected the valid mode supported by the HW before, So using a valid mode to detect how many vmid bits are supported.
- 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
-
Introducedfd7bb4a251dfc1da3496bf59a4793937c13e8c1fFixedd00b61cd37f4c183ce0edbc9f8ccf6d5430ea357
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedfd7bb4a251dfc1da3496bf59a4793937c13e8c1fFixed2b351e3d04be9e1533f26c3464f1e44a5beace30
Affected versions
v5.*
v5.15
v5.15-rc3
v5.15-rc4
v5.15-rc5
v5.15-rc6
v5.15-rc7
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
v6.10
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
v6.13
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
v6.16
v6.16-rc1
v6.16-rc2
v6.16-rc3
v6.16-rc4
v6.16-rc5
v6.16-rc6
v6.16-rc7
v6.17
v6.17-rc1
v6.17-rc2
v6.17-rc3
v6.17-rc4
v6.17-rc5
v6.17-rc6
v6.17-rc7
v6.17.1
v6.17.2
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
v6.7
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
[
{
"id": "CVE-2025-40065-08e4bc30",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@2b351e3d04be9e1533f26c3464f1e44a5beace30",
"deprecated": false,
"signature_version": "v1",
"target": {
"file": "arch/riscv/kvm/vmid.c"
},
"digest": {
"threshold": 0.9,
"line_hashes": [
"243071784373728893547724292080401137715",
"171695944463630887686087566632869066200",
"124986319343225704371822865136873409990",
"92652289191922572875702333028510226491",
"36067299168283784053741751115436072889",
"159775589630410139753387814389787547479",
"257317366934873502016165612450458594864",
"224198234103558933013484663686893809180"
]
},
"signature_type": "Line"
},
{
"id": "CVE-2025-40065-b674eb79",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@d00b61cd37f4c183ce0edbc9f8ccf6d5430ea357",
"deprecated": false,
"signature_version": "v1",
"target": {
"function": "kvm_riscv_gstage_vmid_detect",
"file": "arch/riscv/kvm/vmid.c"
},
"digest": {
"function_hash": "88660808286457977521297660770126343955",
"length": 364.0
},
"signature_type": "Function"
},
{
"id": "CVE-2025-40065-ecb346db",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@d00b61cd37f4c183ce0edbc9f8ccf6d5430ea357",
"deprecated": false,
"signature_version": "v1",
"target": {
"file": "arch/riscv/kvm/vmid.c"
},
"digest": {
"threshold": 0.9,
"line_hashes": [
"243071784373728893547724292080401137715",
"171695944463630887686087566632869066200",
"124986319343225704371822865136873409990",
"92652289191922572875702333028510226491",
"36067299168283784053741751115436072889",
"159775589630410139753387814389787547479",
"257317366934873502016165612450458594864",
"224198234103558933013484663686893809180"
]
},
"signature_type": "Line"
},
{
"id": "CVE-2025-40065-eea7766f",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@2b351e3d04be9e1533f26c3464f1e44a5beace30",
"deprecated": false,
"signature_version": "v1",
"target": {
"function": "kvm_riscv_gstage_vmid_detect",
"file": "arch/riscv/kvm/vmid.c"
},
"digest": {
"function_hash": "88660808286457977521297660770126343955",
"length": 364.0
},
"signature_type": "Function"
}
]