CVE-2026-89989 Affecting kernel-tools-devel package, versions <1:6.1.188-233.385.amzn2023
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-AMZN2023-KERNELTOOLSDEVEL-20868383
- published13 Oct 2026
- disclosed16 Sept 2026
Introduced: 16 Sep 2026
NewCVE-2026-89989 (opens in a new tab)How to fix?
Upgrade Amazon-Linux:2023 kernel-tools-devel to version 1:6.1.188-233.385.amzn2023 or higher.
This issue was patched in ALAS2023-2026-3197.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-tools-devel package and not the kernel-tools-devel package as distributed by Amazon-Linux.
See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.
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.
References
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-89989
- https://git.kernel.org/stable/c/0de5b525c0cd7d202848b8adfde3c01c287fb1a6
- https://git.kernel.org/stable/c/30b5c0e17dcad72b6b2f987319aa645570e6376d
- https://git.kernel.org/stable/c/8861f6d5c0678a7c5089c7b272509fc5931b8437
- https://git.kernel.org/stable/c/9e69d683ebd7def04557fe758ff123105d7d9840
- https://git.kernel.org/stable/c/d62a84a78de5f29c642fa3bd4eee072ba7289cb4
- https://git.kernel.org/stable/c/d6fade89903c8fd0af6c956242aec8b927040e02
- https://git.kernel.org/stable/c/f8a2f2a4602318eb93d49d27fd0d0fdaab17edde