CVE-2026-89693
Full vulnerability record from the local CVENow database.
Description
In the Linux kernel, the following vulnerability has been resolved: nfsd: check nfsd4_acl_to_attr() return value in nfsd4_create() nfsd4_create() stores the return value of nfsd4_acl_to_attr() in status, but the switch(create->cr_type) block unconditionally overwrites it in every branch. ACL translation errors are silently discarded, and the CREATE proceeds without the requested ACL. Add an early exit check after nfsd4_acl_to_attr(), matching the pattern already used in nfsd4_setattr(). [ cel: prefer NFS4ERR_BADTYPE over NFS4ERR_ATTRNOTSUPP ]
Severity
Not scored
CVSS score
Not available
Vulnerability status
Received
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2026-09-11 20:19:56.380000
Last modified
2026-10-30 13:20:26.663000
View original CVE JSON
{
"id": "CVE-2026-89693",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2026-09-11T20:19:56.380",
"lastModified": "2026-10-30T13:20:26.663",
"vulnStatus": "Received",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfsd: check nfsd4_acl_to_attr() return value in nfsd4_create()\n\nnfsd4_create() stores the return value of nfsd4_acl_to_attr() in\nstatus, but the switch(create->cr_type) block unconditionally\noverwrites it in every branch. ACL translation errors are silently\ndiscarded, and the CREATE proceeds without the requested ACL.\n\nAdd an early exit check after nfsd4_acl_to_attr(), matching the\npattern already used in nfsd4_setattr().\n\n[ cel: prefer NFS4ERR_BADTYPE over NFS4ERR_ATTRNOTSUPP ]"
}
],
"affected": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"affectedData": [
{
"vendor": "Linux",
"product": "Linux",
"defaultStatus": "unaffected",
"programFiles": [
"fs/nfsd/nfs4proc.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"versions": [
{
"version": "c5409ce523af40d5c3019717bc5b4f72038d48be",
"lessThan": "154acf97ecd2c0bb00f6533f86d4bd2b934475d5",
"versionType": "git",
"status": "affected"
},
{
"version": "d52acd23a327cada5fb597591267cfc09f08bb1d",
"lessThan": "73dfa989f6f0dedcae1f2650aab3401537044282",
"versionType": "git",
"status": "affected"
},
{
"version": "c0cbe70742f4a70893cd6e5f6b10b6e89b6db95b",
"lessThan": "04b913ab96c2a874f41b5e5a19ac7120526723c2",
"versionType": "git",
"status": "affected"
},
{
"version": "c0cbe70742f4a70893cd6e5f6b10b6e89b6db95b",
"lessThan": "2d8a8ed4f9d8637ef0f18d47d19193e7b780e90e",
"versionType": "git",
"status": "affected"
},
{
"version": "c0cbe70742f4a70893cd6e5f6b10b6e89b6db95b",
"lessThan": "26877d3a09afb3838a053867a655ca30c46a1f81",
"versionType": "git",
"status": "affected"
},
{
"version": "c0cbe70742f4a70893cd6e5f6b10b6e89b6db95b",
"lessThan": "430ed49a16cf9ca249d0fb51490582090bc4848b",
"versionType": "git",
"status": "affected"
},
{
"version": "c0cbe70742f4a70893cd6e5f6b10b6e89b6db95b",
"lessThan": "80cebb0e8a8d1e758f0d671f5e047279c5c3e528",
"versionType": "git",
"status": "affected"
},
{
"version": "c0cbe70742f4a70893cd6e5f6b10b6e89b6db95b",
"lessThan": "2c7912732184773dbd371a411da87af1cc080b86",
"versionType": "git",
"status": "affected"
},
{
"version": "5.10.220",
"lessThan": "5.10.273",
"versionType": "semver",
"status": "affected"
},
{
"version": "5.15.154",
"lessThan": "5.15.224",
"versionType": "semver",
"status": "affected"
}
]
},
{
"vendor": "Linux",
"product": "Linux",
"defaultStatus": "affected",
"programFiles": [
"fs/nfsd/nfs4proc.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"versions": [
{
"version": "6.0",
"status": "affected"
},
{
"version": "0",
"lessThan": "6.0",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "5.10.273",
"lessThanOrEqual": "5.10.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "5.15.224",
"lessThanOrEqual": "5.15.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.1.191",
"lessThanOrEqual": "6.1.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.6.160",
"lessThanOrEqual": "6.6.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.12.111",
"lessThanOrEqual": "6.12.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.18.51",
"lessThanOrEqual": "6.18.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "7.2.4",
"lessThanOrEqual": "7.2.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "7.3",
"lessThanOrEqual": "*",
"versionType": "original_commit_for_fix",
"status": "unaffected"
}
]
}
]
}
],
"metrics": {},
"references": [
{
"url": "https://git.kernel.org/stable/c/04b913ab96c2a874f41b5e5a19ac7120526723c2",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/154acf97ecd2c0bb00f6533f86d4bd2b934475d5",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/26877d3a09afb3838a053867a655ca30c46a1f81",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/2c7912732184773dbd371a411da87af1cc080b86",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/2d8a8ed4f9d8637ef0f18d47d19193e7b780e90e",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/430ed49a16cf9ca249d0fb51490582090bc4848b",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/73dfa989f6f0dedcae1f2650aab3401537044282",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/80cebb0e8a8d1e758f0d671f5e047279c5c3e528",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
]
}