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vuln-cve/data/2026/23xxx/CVE-2026-23463.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-23463",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2026-01-13T15:37:46.021Z",
"datePublished": "2026-04-03T15:15:42.411Z",
"dateUpdated": "2026-11-10T12:43:33.730Z"
},
"containers": {
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"shortName": "Linux",
"dateUpdated": "2026-05-11T22:07:28.689Z"
},
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsoc: fsl: qbman: fix race condition in qman_destroy_fq\n\nWhen QMAN_FQ_FLAG_DYNAMIC_FQID is set, there's a race condition between\nfq_table[fq->idx] state and freeing/allocating from the pool and\nWARN_ON(fq_table[fq->idx]) in qman_create_fq() gets triggered.\n\nIndeed, we can have:\n Thread A Thread B\n qman_destroy_fq() qman_create_fq()\n qman_release_fqid()\n qman_shutdown_fq()\n gen_pool_free()\n -- At this point, the fqid is available again --\n qman_alloc_fqid()\n -- so, we can get the just-freed fqid in thread B --\n fq->fqid = fqid;\n fq->idx = fqid * 2;\n WARN_ON(fq_table[fq->idx]);\n fq_table[fq->idx] = fq;\n fq_table[fq->idx] = NULL;\n\nAnd adding some logs between qman_release_fqid() and\nfq_table[fq->idx] = NULL makes the WARN_ON() trigger a lot more.\n\nTo prevent that, ensure that fq_table[fq->idx] is set to NULL before\ngen_pool_free() is called by using smp_wmb()."
}
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"status": "affected"
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{
"version": "0",
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"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.10.253",
"lessThanOrEqual": "5.10.*",
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"cpeApplicability": [
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"nodes": [
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"operator": "OR",
"negate": false,
"cpeMatch": [
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"references": [
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"url": "https://git.kernel.org/stable/c/66442cf9989bd4489fa80d9f37637d58ab016835"
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{
"url": "https://git.kernel.org/stable/c/d288fbe652ef43b7128e4bc0c0c2ef6bd03a2210"
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{
"url": "https://git.kernel.org/stable/c/014077044e874e270ec480515edbc1cadb976cf2"
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"title": "soc: fsl: qbman: fix race condition in qman_destroy_fq",
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