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CVE-2024-26895

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: wifi: wilc1000: prevent use-after-free on vif when cleaning up all interfaces wilc_netdev_cleanup currently triggers a KASAN wa…

Published Apr 17, 2024CWE-416EPSS 0.24%

Overview

CVE-2024-26895 is a high-severity vulnerability. It was published on April 17, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, 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:

wifi: wilc1000: prevent use-after-free on vif when cleaning up all interfaces

wilc_netdev_cleanup currently triggers a KASAN warning, which can be

observed on interface registration error path, or simply by

removing the module/unbinding device from driver:

echo spi0.1 > /sys/bus/spi/drivers/wilc1000_spi/unbind

==================================================================

BUG: KASAN: slab-use-after-free in wilc_netdev_cleanup+0x508/0x5cc

Read of size 4 at addr c54d1ce8 by task sh/86

CPU: 0 PID: 86 Comm: sh Not tainted 6.8.0-rc1+ #117

Hardware name: Atmel SAMA5

unwind_backtrace from show_stack+0x18/0x1c

show_stack from dump_stack_lvl+0x34/0x58

dump_stack_lvl from print_report+0x154/0x500

print_report from kasan_report+0xac/0xd8

kasan_report from wilc_netdev_cleanup+0x508/0x5cc

wilc_netdev_cleanup from wilc_bus_remove+0xc8/0xec

wilc_bus_remove from spi_remove+0x8c/0xac

spi_remove from device_release_driv

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/24228dcf1d30c2231caa332be7d3090ac59fbfe9Refgit.kernel.org/stable/c/3da9d32b7f4a1a9f7e4bb15bb82f2b2dd6719447Refgit.kernel.org/stable/c/5956f4203b6cdd0755bbdd21b45f3933c7026208Refgit.kernel.org/stable/c/73a2aa0aef86c2c07be5a2f42c9e6047e1a2f7bbRefgit.kernel.org/stable/c/a9545af2a533739ffb64d6c9a6fec6f13e2b505fRefgit.kernel.org/stable/c/cb5942b77c05d54310a0420cac12935e9b6aa21cRefgit.kernel.org/stable/c/fe20e3d56bc911408fc3c27a17c59e9d7885f7d1Refgit.kernel.org/stable/c/24228dcf1d30c2231caa332be7d3090ac59fbfe9Refgit.kernel.org/stable/c/3da9d32b7f4a1a9f7e4bb15bb82f2b2dd6719447Refgit.kernel.org/stable/c/5956f4203b6cdd0755bbdd21b45f3933c7026208

How CyberStrike helps

Frequently asked questions

What is CVE-2024-26895?

CVE-2024-26895 is a high-severity vulnerability. It was published on April 17, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2024-26895?

This vulnerability has a CVSS 3.1 base score of 7.8, 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-2024-26895?

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-2024-26895?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-26895 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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