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CVE-2024-36916

7.1 · HIGH
Published May 30, 2024 linux CWE-125 EPSS 0.73% (52th pctl)

Overview

CVE-2024-36916 is a high-severity vulnerability affecting linux linux_kernel. It was published on May 30, 2024 and has a CVSS 3.1 base score of 7.1 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical Description

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

blk-iocost: avoid out of bounds shift

UBSAN catches undefined behavior in blk-iocost, where sometimes

iocg->delay is shifted right by a number that is too large,

resulting in undefined behavior on some architectures.

[ 186.556576] ------------[ cut here ]------------

UBSAN: shift-out-of-bounds in block/blk-iocost.c:1366:23

shift exponent 64 is too large for 64-bit type 'u64' (aka 'unsigned long long')

CPU: 16 PID: 0 Comm: swapper/16 Tainted: G S E N 6.9.0-0_fbk700_debug_rc2_kbuilder_0_gc85af715cac0 #1

Hardware name: Quanta Twin Lakes MP/Twin Lakes Passive MP, BIOS F09_3A23 12/08/2020

Call Trace:

<IRQ>

dump_stack_lvl+0x8f/0xe0

__ubsan_handle_shift_out_of_bounds+0x22c/0x280

iocg_kick_delay+0x30b/0x310

ioc_timer_fn+0x2fb/0x1f80

__run_timer_base+0x1b6/0x250

...

Avoid that undefined behavior by simply taking the

"delay = 0" branch if the shift is too large.

I am not sure what the symptoms of an undef

Remediation

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected Products

Vendor Product Versions Status
linux linux_kernel >= 5.10, < 5.10.217 Affected

Frequently Asked Questions

What is CVE-2024-36916?

CVE-2024-36916 is a high-severity vulnerability affecting linux linux_kernel. It was published on May 30, 2024 and has a CVSS 3.1 base score of 7.1 (HIGH).

How severe is CVE-2024-36916?

This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2024-36916?

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2024-36916?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-36916 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.