CVE-2023-53075 Affecting kernel-tools-debuginfo package, versions <0:4.14.311-233.529.amzn2


Severity

Recommended
0.0
medium
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.04% (9th percentile)

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  • Snyk IDSNYK-AMZN2-KERNELTOOLSDEBUGINFO-10500327
  • published25 Jun 2025
  • disclosed2 May 2025

Introduced: 2 May 2025

CVE-2023-53075  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 kernel-tools-debuginfo to version 0:4.14.311-233.529.amzn2 or higher.
This issue was patched in ALAS2-2025-2892.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-tools-debuginfo package and not the kernel-tools-debuginfo package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

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

ftrace: Fix invalid address access in lookup_rec() when index is 0

KASAN reported follow problem:

BUG: KASAN: use-after-free in lookup_rec Read of size 8 at addr ffff000199270ff0 by task modprobe CPU: 2 Comm: modprobe Call trace: kasan_report __asan_load8 lookup_rec ftrace_location arch_check_ftrace_location check_kprobe_address_safe register_kprobe

When checking pg->records[pg->index - 1].ip in lookup_rec(), it can get a pg which is newly added to ftrace_pages_start in ftrace_process_locs(). Before the first pg->index++, index is 0 and accessing pg->records[-1].ip will cause this problem.

Don't check the ip when pg->index is 0.

CVSS Base Scores

version 3.1