nfsd: check nfsd4_acl_to_attr() return value in nfsd4_create()
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 ]
CVE-2026-89693
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-89693
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"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": "c5409ce523af40d5c3019717bc5b4f72038d48be",
"versionType": "git"
},
{
"status": "affected",
"version": "d52acd23a327cada5fb597591267cfc09f08bb1d",
"versionType": "git"
},
{
"status": "affected",
"version": "5.10.220",
"lessThan": "5.11",
"versionType": "semver"
},
{
"status": "affected",
"version": "5.15.154",
"lessThan": "5.16",
"versionType": "semver"
}
],
"programFiles": [
"fs/nfsd/nfs4proc.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.0"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.0",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.160",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.111",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.51",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.4",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"fs/nfsd/nfs4proc.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-89693
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #46708 · Revision 1
- Added to Heist Feed
- Publisher date