{"id":"CVE-2026-89989","published":"2026-09-16T11:17:10.010","lastModified":"2026-09-16T11:17:10.010","description":"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.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/0de5b525c0cd7d202848b8adfde3c01c287fb1a6","tags":[]},{"url":"https://git.kernel.org/stable/c/30b5c0e17dcad72b6b2f987319aa645570e6376d","tags":[]},{"url":"https://git.kernel.org/stable/c/8861f6d5c0678a7c5089c7b272509fc5931b8437","tags":[]},{"url":"https://git.kernel.org/stable/c/9e69d683ebd7def04557fe758ff123105d7d9840","tags":[]},{"url":"https://git.kernel.org/stable/c/d62a84a78de5f29c642fa3bd4eee072ba7289cb4","tags":[]},{"url":"https://git.kernel.org/stable/c/d6fade89903c8fd0af6c956242aec8b927040e02","tags":[]},{"url":"https://git.kernel.org/stable/c/f8a2f2a4602318eb93d49d27fd0d0fdaab17edde","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}