CVE-2026-89989

CVE CVE-2026-89989EUVD EUVD-2026-80597Published 2026-09-16T10:33:03.000Z

What the advisory describes

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.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

Linux — Linux patch: 0; 4f2946aa0c45c78b4f4ef101bab9694e38c68db0 <f8a2f2a4602318eb93d49d27fd0d0fdaab17edde; 4f2946aa0c45c78b4f4ef101bab9694e38c68db0 <30b5c0e17dcad72b6b2f987319aa645570e6376d; 4f2946aa0c45c78b4f4ef101bab9694e38c68db0 <8861f6d5c0678a7c5089c7b272509fc5931b8437; patch: 7.2.5; patch: 6.18.51; patch: 5.15.221; 4f2946aa0c45c78b4f4ef101bab9694e38c68db0 <0de5b525c0cd7d202848b8adfde3c01c287fb1a6; patch: 7.3-rc2; 5.15; 4f2946aa0c45c78b4f4ef101bab9694e38c68db0 <d6fade89903c8fd0af6c956242aec8b927040e02; 4f2946aa0c45c78b4f4ef101bab9694e38c68db0 <9e69d683ebd7def04557fe758ff123105d7d9840; patch: 6.1.188; patch: 6.6.157; patch: 6.12.110; 4f2946aa0c45c78b4f4ef101bab9694e38c68db0 <d62a84a78de5f29c642fa3bd4eee072ba7289cb4

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

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Linux — Linux

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