CVE-2026-98422 Affecting bpftool package, versions <0:5.15.0-326.222.4.el9uek


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.22% (12th percentile)

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  • Snyk IDSNYK-ORACLE9-BPFTOOL-22153921
  • published3 Nov 2026
  • disclosed14 Oct 2026

Introduced: 14 Oct 2026

NewCVE-2026-98422  (opens in a new tab)

How to fix?

Upgrade Oracle:9 bpftool to version 0:5.15.0-326.222.4.el9uek or higher.
This issue was patched in ELSA-2026-500574.

NVD Description

Note: Versions mentioned in the description apply only to the upstream bpftool package and not the bpftool package as distributed by Oracle. See How to fix? for Oracle:9 relevant fixed versions and status.

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

wifi: mac80211: reset the AP_VLAN tailroom counter on ifdown

On ifup, AP_VLAN interfaces get crypto_tx_tailroom_needed_cnt from the AP interface, but it's never decremented again unless the AP is also brought down. Thus, bringing the same AP_VLAN up again will increment the counter again and eventually hit the sanity check:

WARN_ON_ONCE(sdata->crypto_tx_tailroom_needed_cnt != master->crypto_tx_tailroom_needed_cnt);

Reset it on ifdown to avoid that.

CVSS Base Scores

version 3.1