CVE-2026-89989
Full vulnerability record from the local CVENow database.
Description
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.
Severity
Not scored
CVSS score
Not available
Vulnerability status
Received
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2026-09-16 11:17:10.010000
Last modified
2026-10-19 09:18:45.997000
View original CVE JSON
{
"id": "CVE-2026-89989",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2026-09-16T11:17:10.010",
"lastModified": "2026-10-19T09:18:45.997",
"vulnStatus": "Received",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nima: Check for ERR_PTR from dentry_path() in validate_hash_algo()\n\ndentry_path() returns ERR_PTR(-ENAMETOOLONG) when the path exceeds the\nbuffer. validate_hash_algo() passes the result straight to\nintegrity_audit_msg() without checking. ERR_PTR is not NULL, so\nintegrity_audit_message() sees a valid pointer and calls strlen() on\nit, which faults:\n\n BUG: unable to handle page fault for address: ffffffffffffffdc\n RIP: 0010:strlen+0x30/0xa0\n Call Trace:\n audit_log_untrustedstring+0x19/0x30\n integrity_audit_message+0x366/0x4f0\n ima_inode_setxattr+0x512/0x5f0\n\nCheck for IS_ERR() and use NULL instead, which makes the audit message\nskip the name= field instead of crashing."
}
],
"affected": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"affectedData": [
{
"vendor": "Linux",
"product": "Linux",
"defaultStatus": "unaffected",
"programFiles": [
"security/integrity/ima/ima_appraise.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"versions": [
{
"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",
"status": "affected"
}
]
},
{
"vendor": "Linux",
"product": "Linux",
"defaultStatus": "affected",
"programFiles": [
"security/integrity/ima/ima_appraise.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"versions": [
{
"version": "5.15",
"status": "affected"
},
{
"version": "0",
"lessThan": "5.15",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "5.15.221",
"lessThanOrEqual": "5.15.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.1.188",
"lessThanOrEqual": "6.1.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.6.157",
"lessThanOrEqual": "6.6.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.12.110",
"lessThanOrEqual": "6.12.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.18.51",
"lessThanOrEqual": "6.18.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "7.2.5",
"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/0de5b525c0cd7d202848b8adfde3c01c287fb1a6",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/30b5c0e17dcad72b6b2f987319aa645570e6376d",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/8861f6d5c0678a7c5089c7b272509fc5931b8437",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/9e69d683ebd7def04557fe758ff123105d7d9840",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/d62a84a78de5f29c642fa3bd4eee072ba7289cb4",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/d6fade89903c8fd0af6c956242aec8b927040e02",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/f8a2f2a4602318eb93d49d27fd0d0fdaab17edde",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
]
}