FKIE_CVE-2025-22013
Vulnerability from fkie_nvd - Published: 2025-04-08 09:15 - Updated: 2026-10-15 22:185.5 (Medium) - CVSS:3.1/
| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | 6.14 | |
| linux | linux_kernel | 6.14 |
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"arch/arm64/kernel/fpsimd.c",
"arch/arm64/kvm/fpsimd.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
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"status": "affected",
"version": "c4ab60a86c5ed7c0d727c6dc8cec352e16bc7f90",
"versionType": "git"
},
{
"lessThan": "04c50cc23a492c4d43fdaefc7c1ecc0ff6f7b82e",
"status": "affected",
"version": "d5f7d3833b534f9e43e548461dba1e60aa82f587",
"versionType": "git"
},
{
"lessThan": "806d5c1e1d2e5502175a24bf70f251648d99c36a",
"status": "affected",
"version": "93ae6b01bafee8fa385aa25ee7ebdb40057f6abe",
"versionType": "git"
},
{
"lessThan": "79e140bba70bcacc5fe15bf8c0b958793fd7d56f",
"status": "affected",
"version": "93ae6b01bafee8fa385aa25ee7ebdb40057f6abe",
"versionType": "git"
},
{
"lessThan": "900b444be493b7f404898c785d6605b177a093d0",
"status": "affected",
"version": "93ae6b01bafee8fa385aa25ee7ebdb40057f6abe",
"versionType": "git"
},
{
"lessThan": "fbc7e61195e23f744814e78524b73b59faa54ab4",
"status": "affected",
"version": "93ae6b01bafee8fa385aa25ee7ebdb40057f6abe",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"arch/arm64/kernel/fpsimd.c",
"arch/arm64/kvm/fpsimd.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "6.2"
},
{
"lessThan": "6.2",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.85",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.21",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.13.*",
"status": "unaffected",
"version": "6.13.9",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.14",
"versionType": "original_commit_for_fix"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
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"matchCriteriaId": "BCB56F36-C998-496A-A2E4-D9E0BB3A5BFC",
"versionEndExcluding": "6.6.85",
"versionStartIncluding": "6.2",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "3B63C450-D73B-4A53-9861-98E25C16E842",
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},
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},
{
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],
"negate": false,
"operator": "OR"
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]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: arm64: Unconditionally save+flush host FPSIMD/SVE/SME state\n\nThere are several problems with the way hyp code lazily saves the host\u0027s\nFPSIMD/SVE state, including:\n\n* Host SVE being discarded unexpectedly due to inconsistent\n configuration of TIF_SVE and CPACR_ELx.ZEN. This has been seen to\n result in QEMU crashes where SVE is used by memmove(), as reported by\n Eric Auger:\n\n https://issues.redhat.com/browse/RHEL-68997\n\n* Host SVE state is discarded *after* modification by ptrace, which was an\n unintentional ptrace ABI change introduced with lazy discarding of SVE state.\n\n* The host FPMR value can be discarded when running a non-protected VM,\n where FPMR support is not exposed to a VM, and that VM uses\n FPSIMD/SVE. In these cases the hyp code does not save the host\u0027s FPMR\n before unbinding the host\u0027s FPSIMD/SVE/SME state, leaving a stale\n value in memory.\n\nAvoid these by eagerly saving and \"flushing\" the host\u0027s FPSIMD/SVE/SME\nstate when loading a vCPU such that KVM does not need to save any of the\nhost\u0027s FPSIMD/SVE/SME state. For clarity, fpsimd_kvm_prepare() is\nremoved and the necessary call to fpsimd_save_and_flush_cpu_state() is\nplaced in kvm_arch_vcpu_load_fp(). As \u0027fpsimd_state\u0027 and \u0027fpmr_ptr\u0027\nshould not be used, they are set to NULL; all uses of these will be\nremoved in subsequent patches.\n\nHistorical problems go back at least as far as v5.17, e.g. erroneous\nassumptions about TIF_SVE being clear in commit:\n\n 8383741ab2e773a9 (\"KVM: arm64: Get rid of host SVE tracking/saving\")\n\n... and so this eager save+flush probably needs to be backported to ALL\nstable trees."
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: KVM: arm64: Guardar y vaciar incondicionalmente el estado FPSIMD/SVE/SME del host Hay varios problemas con la forma en que el c\u00f3digo hyp guarda de forma diferida el estado FPSIMD/SVE del host, incluidos: * El SVE del host se descarta inesperadamente debido a una configuraci\u00f3n inconsistente de TIF_SVE y CPACR_ELx.ZEN. Se ha visto que esto da como resultado fallos de QEMU donde memmove() usa SVE, como lo inform\u00f3 Eric Auger: https://issues.redhat.com/browse/RHEL-68997 * El estado SVE del host se descarta *despu\u00e9s* de la modificaci\u00f3n por ptrace, que fue un cambio de ABI de ptrace no intencionado introducido con el descarte diferido del estado SVE. * El valor FPMR del host se puede descartar cuando se ejecuta una VM no protegida, donde la compatibilidad con FPMR no est\u00e1 expuesta a una VM y esa VM usa FPSIMD/SVE. En estos casos, el c\u00f3digo hyp no guarda el FPMR del host antes de desvincular su estado FPSIMD/SVE/SME, lo que deja un valor obsoleto en memoria. Para evitar esto, guarde y vac\u00ede el estado FPSIMD/SVE/SME del host al cargar una vCPU, de modo que KVM no tenga que guardar ninguno de sus estados. Para mayor claridad, se ha eliminado fpsimd_kvm_prepare() y la llamada necesaria a fpsimd_save_and_flush_cpu_state() se ha ubicado en kvm_arch_vcpu_load_fp(). Dado que \u0027fpsimd_state\u0027 y \u0027fpmr_ptr\u0027 no deben usarse, se establecen en NULL; todos sus usos se eliminar\u00e1n en parches posteriores. Los problemas hist\u00f3ricos se remontan al menos a la versi\u00f3n v5.17, por ejemplo, suposiciones err\u00f3neas acerca de que TIF_SVE est\u00e1 claro en el commit: 8383741ab2e773a9 (\"KVM: arm64: deshacerse del seguimiento/guardado de SVE del host\")... y por eso, este ansioso guardado y vaciado probablemente deba ser retrotra\u00eddo a TODOS los \u00e1rboles estables."
}
],
"id": "CVE-2025-22013",
"lastModified": "2026-10-15T22:18:13.067",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.3,
"baseSeverity": "HIGH",
"confidentialityImpact": "LOW",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 5.5,
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"type": "Secondary"
},
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2025-22013",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-15T21:44:00.434508Z",
"version": "2.0.3"
}
}
]
},
"published": "2025-04-08T09:15:25.643",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
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"url": "https://git.kernel.org/stable/c/04c50cc23a492c4d43fdaefc7c1ecc0ff6f7b82e"
},
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],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "NVD-CWE-noinfo"
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],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
How durations are calculated
Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.
Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.
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