CVE-2024-49954

MEDIUM

Linux Kernel - Denial of Service via static_call_module_notify Memory Allocation Failure

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: static_call: Replace pointless WARN_ON() in static_call_module_notify() static_call_module_notify() triggers a WARN_ON(), when memory allocation fails in __static_call_add_module(). That's not really justified, because the failure case must be correctly handled by the well known call chain and the error code is passed through to the initiating userspace application. A memory allocation fail is not a fatal problem, but the WARN_ON() takes the machine out when panic_on_warn is set. Replace it with a pr_warn().

Scores

CVSS v3 5.5
EPSS 0.0024
EPSS Percentile 14.7%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

Status published
Products (20)
linux/Kernel 5.10.0 - 5.15.168linux
linux/Kernel 5.16.0 - 6.1.113linux
linux/Kernel 6.11.0 - 6.11.3linux
linux/Kernel 6.2.0 - 6.6.55linux
linux/Kernel 6.7.0 - 6.10.14linux
Linux/Linux < 5.10
Linux/Linux 5.10
Linux/Linux 5.15.168 - 5.15.*
Linux/Linux 6.1.113 - 6.1.*
Linux/Linux 6.10.14 - 6.10.*
... and 10 more
Published Oct 21, 2024
Tracked Since Feb 18, 2026