CVE-2026-98222 Affecting bpftool package, versions <0:4.18.0-553.180.1.el8_10


Severity

Recommended
high

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.17% (6th percentile)

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  • Snyk IDSNYK-ROCKY8-BPFTOOL-22111559
  • published1 Nov 2026
  • disclosed6 Oct 2026

Introduced: 6 Oct 2026

CVE-2026-98222  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:8 bpftool to version 0:4.18.0-553.180.1.el8_10 or higher.
This issue was patched in RLSA-2026:92209.

NVD Description

Note: Versions mentioned in the description apply only to the upstream bpftool package and not the bpftool package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux:8 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

KEYS: encrypted: fix integer overflow of datablob_len

encrypted_key_alloc() stores datablob_len in a u16. It is computed from multiple string and payload lengths. If the result exceeds U16_MAX, the assignment truncates the allocation size. KASAN reports a 32760-byte slab-out-of-bounds write when __ekey_init() copies the master key description into the undersized buffer.

The total payload length stored in key->datalen is also a u16. Use check_add_overflow() to reject values that do not fit either destination, and use kzalloc_flex() for the flexible-array allocation.

CVSS Base Scores

version 3.1