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CVE-2024-35938

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: wifi: ath11k: decrease MHI channel buffer length to 8KB Currently buf_len field of ath11k_mhi_config_qca6390 is assigned with 0…

Published May 19, 2024EPSS 0.21%

Overview

CVE-2024-35938 is a medium-severity vulnerability. It was published on May 19, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. 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:

wifi: ath11k: decrease MHI channel buffer length to 8KB

Currently buf_len field of ath11k_mhi_config_qca6390 is assigned

with 0, making MHI use a default size, 64KB, to allocate channel

buffers. This is likely to fail in some scenarios where system

memory is highly fragmented and memory compaction or reclaim is

not allowed.

There is a fail report which is caused by it:

kworker/u32:45: page allocation failure: order:4, mode:0x40c00(GFP_NOIO|__GFP_COMP), nodemask=(null),cpuset=/,mems_allowed=0

CPU: 0 PID: 19318 Comm: kworker/u32:45 Not tainted 6.8.0-rc3-1.gae4495f-default #1 openSUSE Tumbleweed (unreleased) 493b6d5b382c603654d7a81fc3c144d59a1dfceb

Workqueue: events_unbound async_run_entry_fn

Call Trace:

<TASK>

dump_stack_lvl+0x47/0x60

warn_alloc+0x13a/0x1b0

? srso_alias_return_thunk+0x5/0xfbef5

? __alloc_pages_direct_compact+0xab/0x210

__alloc_pages_slowpath.constprop.0+0xd3e/0xda0

__alloc_pages+0x32d/0x350

?

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. 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.

References

Refgit.kernel.org/stable/c/138fdeac75fb7512a7f9f1c3b236cd2e754af793Refgit.kernel.org/stable/c/1cca1bddf9ef080503c15378cecf4877f7510015Refgit.kernel.org/stable/c/6597a6687af54e2cb58371cf8f6ee4dd85c537deRefgit.kernel.org/stable/c/805a1cdde82fec00c7471a393f4bb437b2741559Refgit.kernel.org/stable/c/ae5876b3b7b2243d874e2afa099e7926122087a1Refgit.kernel.org/stable/c/138fdeac75fb7512a7f9f1c3b236cd2e754af793Refgit.kernel.org/stable/c/1cca1bddf9ef080503c15378cecf4877f7510015Refgit.kernel.org/stable/c/6597a6687af54e2cb58371cf8f6ee4dd85c537deRefgit.kernel.org/stable/c/805a1cdde82fec00c7471a393f4bb437b2741559Refgit.kernel.org/stable/c/ae5876b3b7b2243d874e2afa099e7926122087a1

How CyberStrike helps

Frequently asked questions

What is CVE-2024-35938?

CVE-2024-35938 is a medium-severity vulnerability. It was published on May 19, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-35938?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2024-35938?

Check the references section for vendor advisories, patches, and mitigation guidance. 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-2024-35938?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-35938 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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