ima: Check for ERR_PTR from dentry_path() in validate_hash_algo()
In the Linux kernel, the following vulnerability has been resolved: ima: Check for ERR_PTR from dentry_path() in validate_hash_algo() dentry_path() returns ERR_PTR(-ENAMETOOLONG) when the path exceeds the buffer. validate_hash_algo() passes the result straight to integrity_audit_msg() without checking. ERR_PTR is not NULL, so integrity_audit_message() sees a valid pointer and calls strlen() on it, which faults: BUG: unable to handle page fault for address: ffffffffffffffdc RIP: 0010:strlen+0x30/0xa0 Call Trace: audit_log_untrustedstring+0x19/0x30 integrity_audit_message+0x366/0x4f0 ima_inode_setxattr+0x512/0x5f0 Check for IS_ERR() and use NULL instead, which makes the audit message skip the name= field instead of crashing.
CVE-2026-89989
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-2026-89989
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": "4f2946aa0c45c78b4f4ef101bab9694e38c68db0",
"lessThan": "d6fade89903c8fd0af6c956242aec8b927040e02",
"versionType": "git"
},
{
"status": "affected",
"version": "4f2946aa0c45c78b4f4ef101bab9694e38c68db0",
"lessThan": "0de5b525c0cd7d202848b8adfde3c01c287fb1a6",
"versionType": "git"
},
{
"status": "affected",
"version": "4f2946aa0c45c78b4f4ef101bab9694e38c68db0",
"lessThan": "30b5c0e17dcad72b6b2f987319aa645570e6376d",
"versionType": "git"
},
{
"status": "affected",
"version": "4f2946aa0c45c78b4f4ef101bab9694e38c68db0",
"lessThan": "9e69d683ebd7def04557fe758ff123105d7d9840",
"versionType": "git"
},
{
"status": "affected",
"version": "4f2946aa0c45c78b4f4ef101bab9694e38c68db0",
"lessThan": "f8a2f2a4602318eb93d49d27fd0d0fdaab17edde",
"versionType": "git"
},
{
"status": "affected",
"version": "4f2946aa0c45c78b4f4ef101bab9694e38c68db0",
"lessThan": "d62a84a78de5f29c642fa3bd4eee072ba7289cb4",
"versionType": "git"
},
{
"status": "affected",
"version": "4f2946aa0c45c78b4f4ef101bab9694e38c68db0",
"lessThan": "8861f6d5c0678a7c5089c7b272509fc5931b8437",
"versionType": "git"
}
],
"programFiles": [
"security/integrity/ima/ima_appraise.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.15"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.15",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.15.221",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.188",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.157",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.110",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.51",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.5",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"security/integrity/ima/ima_appraise.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-89989
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #36424 · Revision 1
- Added to Heist Feed
- Publisher date