FKIE_CVE-2026-68444
Vulnerability from fkie_nvd - Published: 2026-08-12 00:17 - Updated: 2026-08-19 17:20
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved:
firmware: arm_ffa: Fix NULL dereference in ffa_partition_info_get()
ffa_partition_info_get() passes uuid_str directly to uuid_parse()
without a NULL check. When a caller passes NULL, uuid_parse() ->
__uuid_parse() -> uuid_is_valid() dereferences the pointer, causing
a kernel panic:
| Unable to handle kernel NULL pointer dereference at virtual address
| 0000000000000040
| pc : uuid_parse+0x40/0xac
| lr : ffa_partition_info_get+0x1c/0x94 [arm_ffa]
Add a NULL guard before uuid_parse() so a NULL argument returns
-ENODEV instead of crashing. Callers are expected to always supply
a valid partition UUID, so NULL is not a supported input.
References
Impacted products
| Vendor | Product | Version |
|---|
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/firmware/arm_ffa/driver.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "7dfb020e3048411fbca91e9ad6174da9a2d3e2b3",
"status": "affected",
"version": "d0c0bce831223b08e5bade2cefc93c3ddb790796",
"versionType": "git"
},
{
"lessThan": "ddf85f0c32e05baafbd9c3a44859858db90eec48",
"status": "affected",
"version": "d0c0bce831223b08e5bade2cefc93c3ddb790796",
"versionType": "git"
},
{
"lessThan": "86f5ea90f73bb7154593bb96f3411e197f3d4fbe",
"status": "affected",
"version": "d0c0bce831223b08e5bade2cefc93c3ddb790796",
"versionType": "git"
},
{
"lessThan": "7201e56e52d18abf4cd0a2fee45daf9dc08b5b97",
"status": "affected",
"version": "d0c0bce831223b08e5bade2cefc93c3ddb790796",
"versionType": "git"
},
{
"lessThan": "996c5c19d5b5ac5b98a7b5a406b548305841c301",
"status": "affected",
"version": "d0c0bce831223b08e5bade2cefc93c3ddb790796",
"versionType": "git"
},
{
"lessThan": "12a42c610e4432e7708cc48d607e5903fffe0aad",
"status": "affected",
"version": "d0c0bce831223b08e5bade2cefc93c3ddb790796",
"versionType": "git"
},
{
"lessThan": "8ae5f8e4836667fcaffdf2e3c6068b0a8b364dd8",
"status": "affected",
"version": "d0c0bce831223b08e5bade2cefc93c3ddb790796",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/firmware/arm_ffa/driver.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.14"
},
{
"lessThan": "5.14",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.216",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.183",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.148",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.101",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.42",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.1.*",
"status": "unaffected",
"version": "7.1.6",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: arm_ffa: Fix NULL dereference in ffa_partition_info_get()\n\nffa_partition_info_get() passes uuid_str directly to uuid_parse()\nwithout a NULL check. When a caller passes NULL, uuid_parse() -\u003e\n__uuid_parse() -\u003e uuid_is_valid() dereferences the pointer, causing\na kernel panic:\n\n | Unable to handle kernel NULL pointer dereference at virtual address\n | 0000000000000040\n | pc : uuid_parse+0x40/0xac\n | lr : ffa_partition_info_get+0x1c/0x94 [arm_ffa]\n\nAdd a NULL guard before uuid_parse() so a NULL argument returns\n-ENODEV instead of crashing. Callers are expected to always supply\na valid partition UUID, so NULL is not a supported input."
}
],
"id": "CVE-2026-68444",
"lastModified": "2026-08-19T17:20:50.430",
"metrics": {},
"published": "2026-08-12T00:17:44.747",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/12a42c610e4432e7708cc48d607e5903fffe0aad"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/7201e56e52d18abf4cd0a2fee45daf9dc08b5b97"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/7dfb020e3048411fbca91e9ad6174da9a2d3e2b3"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/86f5ea90f73bb7154593bb96f3411e197f3d4fbe"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/8ae5f8e4836667fcaffdf2e3c6068b0a8b364dd8"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/996c5c19d5b5ac5b98a7b5a406b548305841c301"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/ddf85f0c32e05baafbd9c3a44859858db90eec48"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Received"
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
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.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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