FKIE_CVE-2024-26945
Vulnerability from fkie_nvd - Published: 2024-05-01 06:15 - Updated: 2026-06-17 07:18
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved:
crypto: iaa - Fix nr_cpus < nr_iaa case
If nr_cpus < nr_iaa, the calculated cpus_per_iaa will be 0, which
causes a divide-by-0 in rebalance_wq_table().
Make sure cpus_per_iaa is 1 in that case, and also in the nr_iaa == 0
case, even though cpus_per_iaa is never used if nr_iaa == 0, for
paranoia.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel | * | |
| linux | linux_kernel | 6.9 |
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/crypto/intel/iaa/iaa_crypto_main.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "a5ca1be7f9817de4e93085778b3ee2219bdc2664",
"status": "affected",
"version": "ea7a5cbb43696cfacf73e61916d1860ac30b5b2f",
"versionType": "git"
},
{
"lessThan": "5a7e89d3315d1be86aff8a8bf849023cda6547f7",
"status": "affected",
"version": "ea7a5cbb43696cfacf73e61916d1860ac30b5b2f",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/crypto/intel/iaa/iaa_crypto_main.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "6.8"
},
{
"lessThan": "6.8",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.8.*",
"status": "unaffected",
"version": "6.8.3",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.9",
"versionType": "original_commit_for_fix"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"affectedData": [
{
"cpes": [
"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
],
"defaultStatus": "unknown",
"product": "linux_kernel",
"vendor": "linux",
"versions": [
{
"status": "affected",
"version": "1da177e4c3f4"
}
]
},
{
"cpes": [
"cpe:2.3:a:linux:linux_kernel:-:*:*:*:*:*:*:*"
],
"defaultStatus": "unknown",
"product": "linux_kernel",
"vendor": "linux",
"versions": [
{
"status": "unaffected",
"version": "6.8.3"
}
]
},
{
"cpes": [
"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
],
"defaultStatus": "unknown",
"product": "linux_kernel",
"vendor": "linux",
"versions": [
{
"status": "unaffected",
"version": "6.9"
}
]
}
],
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "45CAC835-1C61-4C27-A919-EF08207D3099",
"versionEndExcluding": "6.8.3",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.9:rc1:*:*:*:*:*:*",
"matchCriteriaId": "22BEDD49-2C6D-402D-9DBF-6646F6ECD10B",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: iaa - Fix nr_cpus \u003c nr_iaa case\n\nIf nr_cpus \u003c nr_iaa, the calculated cpus_per_iaa will be 0, which\ncauses a divide-by-0 in rebalance_wq_table().\n\nMake sure cpus_per_iaa is 1 in that case, and also in the nr_iaa == 0\ncase, even though cpus_per_iaa is never used if nr_iaa == 0, for\nparanoia."
},
{
"lang": "es",
"value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: crypto: iaa - Corrige el caso nr_cpus \u0026lt; nr_iaa Si nr_cpus \u0026lt; nr_iaa, el cpus_per_iaa calculado ser\u00e1 0, lo que provoca una divisi\u00f3n por 0 en rebalance_wq_table(). Aseg\u00farese de que cpus_per_iaa sea 1 en ese caso, y tambi\u00e9n en el caso de nr_iaa == 0, aunque cpus_per_iaa nunca se use si nr_iaa == 0, para paranoia."
}
],
"id": "CVE-2024-26945",
"lastModified": "2026-06-17T07:18:45.477",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 8.4,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.5,
"impactScore": 5.9,
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2024-26945",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-05-16T18:02:58.634456Z",
"version": "2.0.3"
}
}
]
},
"published": "2024-05-01T06:15:10.177",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/5a7e89d3315d1be86aff8a8bf849023cda6547f7"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/a5ca1be7f9817de4e93085778b3ee2219bdc2664"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/5a7e89d3315d1be86aff8a8bf849023cda6547f7"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/a5ca1be7f9817de4e93085778b3ee2219bdc2664"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-369"
}
],
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
]
}
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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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