CVE-2026-89989ima: Check for ERR_PTR from dentry_path() in validate_hash_algo()
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 19, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 4f2946aa0c45c78b4f4ef101bab9694e38c68db0 before d6fade89903c8fd0af6c956242aec8b927040e02; 4f2946aa0c45c78b4f4ef101bab9694e38c68db0 builds before 0de5b525c0cd7d202848b8adfde3c01c287fb1a6; from 4f2946aa0c45c78b4f4ef101bab9694e38c68db0 before 30b5c0e17dcad72b6b2f987319aa645570e6376d; from 4f2946aa0c45c78b4f4ef101bab9694e38c68db0 before 9e69d683ebd7def04557fe758ff123105d7d9840; from 4f2946aa0c45c78b4f4ef101bab9694e38c68db0 before f8a2f2a4602318eb93d49d27fd0d0fdaab17edde; from 4f2946aa0c45c78b4f4ef101bab9694e38c68db0 before d62a84a78de5f29c642fa3bd4eee072ba7289cb4; from 4f2946aa0c45c78b4f4ef101bab9694e38c68db0 before 8861f6d5c0678a7c5089c7b272509fc5931b8437 | CNA record |
References
- https://git.kernel.org/stable/c/d6fade89903c8fd0af6c956242aec8b927040e02
- https://git.kernel.org/stable/c/0de5b525c0cd7d202848b8adfde3c01c287fb1a6
- https://git.kernel.org/stable/c/30b5c0e17dcad72b6b2f987319aa645570e6376d
- https://git.kernel.org/stable/c/9e69d683ebd7def04557fe758ff123105d7d9840
- https://git.kernel.org/stable/c/f8a2f2a4602318eb93d49d27fd0d0fdaab17edde
- https://git.kernel.org/stable/c/d62a84a78de5f29c642fa3bd4eee072ba7289cb4
- https://git.kernel.org/stable/c/8861f6d5c0678a7c5089c7b272509fc5931b8437
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.