CVE-2026-72223
Full vulnerability record from the local CVENow database.
Description
In the Linux kernel, the following vulnerability has been resolved: nvdimm/btt: Free arena sub-allocations on discover_arenas() error path Memory allocated by btt_freelist_init(), btt_rtt_init(), and btt_maplocks_init() is not freed on some discover_arenas() error paths. This leaks memory when arena discovery fails. Add the missing kfree() calls to release the allocations before returning an error. [ as: commit message and log edits ]
Severity
Not scored
CVSS score
Not available
Vulnerability status
Received
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2026-08-15 06:21:41.233000
Last modified
2026-11-06 17:19:40.063000
View original CVE JSON
{
"id": "CVE-2026-72223",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2026-08-15T06:21:41.233",
"lastModified": "2026-11-06T17:19:40.063",
"vulnStatus": "Received",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvdimm/btt: Free arena sub-allocations on discover_arenas() error path\n\nMemory allocated by btt_freelist_init(), btt_rtt_init(), and\nbtt_maplocks_init() is not freed on some discover_arenas() error\npaths. This leaks memory when arena discovery fails.\n\nAdd the missing kfree() calls to release the allocations before\nreturning an error.\n\n[ as: commit message and log edits ]"
}
],
"affected": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"affectedData": [
{
"vendor": "Linux",
"product": "Linux",
"defaultStatus": "unaffected",
"programFiles": [
"drivers/nvdimm/btt.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"versions": [
{
"version": "5212e11fde4d40fa627668b4f2222d20db488f71",
"lessThan": "2d0364937550a7b3e2592629c2a68753ac020b28",
"versionType": "git",
"status": "affected"
},
{
"version": "5212e11fde4d40fa627668b4f2222d20db488f71",
"lessThan": "eeb95774bc79268e2b78ebf01d8781560b5bd671",
"versionType": "git",
"status": "affected"
},
{
"version": "5212e11fde4d40fa627668b4f2222d20db488f71",
"lessThan": "7563f69caa9143a491d5f26e563255c734751545",
"versionType": "git",
"status": "affected"
},
{
"version": "5212e11fde4d40fa627668b4f2222d20db488f71",
"lessThan": "0b0d9404951aacc9717aa61e77af4a6e9e8f8249",
"versionType": "git",
"status": "affected"
},
{
"version": "5212e11fde4d40fa627668b4f2222d20db488f71",
"lessThan": "873ced7f345e99f7ee16f9ff226515580332ecc4",
"versionType": "git",
"status": "affected"
},
{
"version": "5212e11fde4d40fa627668b4f2222d20db488f71",
"lessThan": "30d490bb2c4cd220e7dedf862ab6a09eb5dcbad5",
"versionType": "git",
"status": "affected"
},
{
"version": "5212e11fde4d40fa627668b4f2222d20db488f71",
"lessThan": "ba59b96d8d21dc8729fca44a022ca5919c1848c9",
"versionType": "git",
"status": "affected"
},
{
"version": "5212e11fde4d40fa627668b4f2222d20db488f71",
"lessThan": "13fe4cd9ddd0aacb7777812328be525a11ea3fea",
"versionType": "git",
"status": "affected"
}
]
},
{
"vendor": "Linux",
"product": "Linux",
"defaultStatus": "affected",
"programFiles": [
"drivers/nvdimm/btt.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"versions": [
{
"version": "4.2",
"status": "affected"
},
{
"version": "0",
"lessThan": "4.2",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "5.10.261",
"lessThanOrEqual": "5.10.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "5.15.212",
"lessThanOrEqual": "5.15.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.1.178",
"lessThanOrEqual": "6.1.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.6.145",
"lessThanOrEqual": "6.6.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.12.97",
"lessThanOrEqual": "6.12.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.18.40",
"lessThanOrEqual": "6.18.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "7.1.5",
"lessThanOrEqual": "7.1.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "7.2",
"lessThanOrEqual": "*",
"versionType": "original_commit_for_fix",
"status": "unaffected"
}
]
}
]
}
],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-11-06T16:52:54.485986Z",
"id": "CVE-2026-72223",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"references": [
{
"url": "https://git.kernel.org/stable/c/0b0d9404951aacc9717aa61e77af4a6e9e8f8249",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/13fe4cd9ddd0aacb7777812328be525a11ea3fea",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/2d0364937550a7b3e2592629c2a68753ac020b28",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/30d490bb2c4cd220e7dedf862ab6a09eb5dcbad5",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/7563f69caa9143a491d5f26e563255c734751545",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/873ced7f345e99f7ee16f9ff226515580332ecc4",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/ba59b96d8d21dc8729fca44a022ca5919c1848c9",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/eeb95774bc79268e2b78ebf01d8781560b5bd671",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
]
}