Return of Wrong Status Code Affecting bpftool6.12-debuginfo package, versions <1:6.12.94-123.190.amzn2023


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.13% (4th percentile)

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  • Snyk IDSNYK-AMZN2023-BPFTOOL612DEBUGINFO-18065083
  • published21 Jul 2026
  • disclosed24 Jun 2026

Introduced: 24 Jun 2026

CVE-2026-53092  (opens in a new tab)
CWE-393  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 bpftool6.12-debuginfo to version 1:6.12.94-123.190.amzn2023 or higher.
This issue was patched in ALAS2023-2026-1970.

NVD Description

Note: Versions mentioned in the description apply only to the upstream bpftool6.12-debuginfo package and not the bpftool6.12-debuginfo 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:

bpf: Fix linked reg delta tracking when src_reg == dst_reg

Consider the case of rX += rX where src_reg and dst_reg are pointers to the same bpf_reg_state in adjust_reg_min_max_vals(). The latter first modifies the dst_reg in-place, and later in the delta tracking, the subsequent is_reg_const(src_reg)/reg_const_value(src_reg) reads the post-{add,sub} value instead of the original source.

This is problematic since it sets an incorrect delta, which sync_linked_regs() then propagates to linked registers, thus creating a verifier-vs-runtime mismatch. Fix it by just skipping this corner case.

CVSS Base Scores

version 3.1