Allocation of Resources Without Limits or Throttling Affecting kernel6.12-libbpf-debuginfo package, versions <1:6.12.79-101.147.amzn2023


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.03% (10th percentile)

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  • Snyk IDSNYK-AMZN2023-KERNEL612LIBBPFDEBUGINFO-16734770
  • published18 May 2026
  • disclosed8 May 2026

Introduced: 8 May 2026

NewCVE-2026-43428  (opens in a new tab)
CWE-770  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 kernel6.12-libbpf-debuginfo to version 1:6.12.79-101.147.amzn2023 or higher.
This issue was patched in ALAS2023-2026-1594.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel6.12-libbpf-debuginfo package and not the kernel6.12-libbpf-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:

USB: core: Limit the length of unkillable synchronous timeouts

The usb_control_msg(), usb_bulk_msg(), and usb_interrupt_msg() APIs in usbcore allow unlimited timeout durations. And since they use uninterruptible waits, this leaves open the possibility of hanging a task for an indefinitely long time, with no way to kill it short of unplugging the target device.

To prevent this sort of problem, enforce a maximum limit on the length of these unkillable timeouts. The limit chosen here, somewhat arbitrarily, is 60 seconds. On many systems (although not all) this is short enough to avoid triggering the kernel's hung-task detector.

In addition, clear up the ambiguity of negative timeout values by treating them the same as 0, i.e., using the maximum allowed timeout.

CVSS Base Scores

version 3.1